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  1. Reply to Hansen

    ERIC Educational Resources Information Center

    Leibert, Todd W.

    2012-01-01

    Hansen (2012a) and the author are both concerned about trends in the counseling culture toward oversimplification. Their disagreement is, principally, about the locus of debate. The author responds to Hansen's counterarguments with the ultimate hope of transferring the focus from scientific ideology to economic realities pervading professional…

  2. Implementing Hansen's Proficiencies.

    ERIC Educational Resources Information Center

    Carlson, J. Lon; Cohn, Raymond L.; Ramsey, David D.

    2002-01-01

    Describes an economics department framework that incorporates the William Lee Hansen curriculum proficiencies. Identifies tools students should be able to use to complete specific activities, significant prerequisite changes for upper division courses, and the development of a capstone project to employ student skills and knowledge. (JEH)

  3. Rejoinder to Hansen

    ERIC Educational Resources Information Center

    Suthakaran, V.

    2012-01-01

    Hansen (2012b) reiterates his view that the humanities should form the ideological foundation of the counseling profession by challenging the validity of the central premises for the author's argument that the humanities and science should have equal ideological standing. The author attempts to explain the reasons for their conflicting ideas on…

  4. [Diagnosis of Hansen's disease].

    PubMed

    Yotsu, Rie Roselyne; Suzuki, Koichi; Mori, Shuichi; Ishii, Norihisa

    2011-02-01

    The Leprosy Mailing List (LML) is an e-mailing list open to whoever interested in the field from all over the world. It acts as a forum for exchanging information related to Hansen's disease. It was established in February 2001 in Italy, and the present moderator of the LML is Dr. Salvatore Noto. He and his colleague have recently introduced an atlas for diagnosing Hansen's disease which they brought together information and photos collected through the LML. The atlas is divided into three sections, (1) Introduction, (2) Cardinal signs, and (3) Diagnosis and the clinical spectrum of leprosy, and they are all accompanied with relevant photos. This time, Dr. Noto kindly permitted us to translate the atlas into Japanese to be published in the Japanese Journal of Leprosy and posted in the Japanese Leprosy Association homepage. This article includes the translation and some of the most informative photos. For more information, please refer to the homepage where you will find all photos in the atlas.

  5. [Epidemiology of Hansen's disease in Israel].

    PubMed

    Seidenbaum, M; Slater, P E; Ever-Hadani, P; Costin, C; Leviatan, A

    1993-08-01

    There are currently 200 patients with Hansen's disease in Israel who are being followed by the Hansen's Disease Government Hospital and the Ministry of Health (prevalence 4.4/100,000). Most of them immigrated from countries where the disease is endemic. Dermatological findings dominated the initial clinical picture, although 5% of patients are asymptomatic contacts of known cases. Age at onset of disease was less than 20 years in 1/4 of the cases. The incidence in Israel is falling: 0.4/100,000 in 1985-89 compared to 3.6/100,000 in 1950-54. Neurologic and dermatologic findings in an immigrant of any age originating from countries where Hansen's disease is endemic, should prompt appropriate diagnostic evaluation, even years after immigration to Israel. Contacts of known cases of Hansen's disease should be aggressively screened, even if asymptomatic.

  6. Organogel formation rationalized by Hansen solubility parameters.

    PubMed

    Raynal, Matthieu; Bouteiller, Laurent

    2011-08-07

    Some organic compounds gelate particular solvents by forming a network of anisotropic fibres. We show that Hansen solubility parameters can be used to predict the range of solvents that are likely to be gelled by any given gelator.

  7. A Reply to Hansen's Cultural Humanism

    ERIC Educational Resources Information Center

    Lemberger, Matthew E.

    2012-01-01

    Hansen (2012b) responds to the author's (Lemberger, 2012) critique of his humanistic vision by dividing their arguments as either individual or cultural in design. In this reply, the author contends that the individual cannot be extracted from her or his culture and, therefore, what is sufficient for a humanistic counseling culture must also be…

  8. Peter Andreas Hansen und die astronomische Gemeinschaft - eine erste Auswertung des Hansen-Nachlasses.

    NASA Astrophysics Data System (ADS)

    Schwarz, O.; Strumpf, M.

    The literary assets of Peter Andreas Hansen are deposited in the Staatsarchiv Hamburg, the Forschungs- und Landesbibliothek Gotha and the Thüringer Staatsarchiv Gotha. They were never systematically investigated. The authors present here some results of a first evaluation. It was possible to reconstruct the historical events with regard to the maintenance of the Astronomische Nachrichten and the Altona observatory in 1854. Hansen was a successful teacher for many young astronomers. His way of stimulating the evolution of astronomy followed Zach's tradition.

  9. W. W. Hansen, Microwave Physics, and Silicon Valley

    NASA Astrophysics Data System (ADS)

    Leeson, David

    2009-03-01

    The Stanford physicist W. W. Hansen (b. 1909, AB '29 and PhD '32, MIT post-doc 1933-4, Prof. physics '35-'49, d. 1949) played a seminal role in the development of microwave electronics. His contributions underlay Silicon Valley's postwar ``microwave'' phase, when numerous companies, acknowledging their unique scientific debt to Hansen, flourished around Stanford University. As had the prewar ``radio'' companies, they furthered the regional entrepreneurial culture and prepared the ground for the later semiconductor and computer developments we know as Silicon Valley. In the 1930's, Hansen invented the cavity resonator. He applied this to his concept of the radio-frequency (RF) linear accelerator and, with the Varian brothers, to the invention of the klystron, which made microwave radar practical. As WWII loomed, Hansen was asked to lecture on microwaves to the physicists recruited to the MIT Radiation Laboratory. Hansen's ``Notes on Microwaves,'' the Rad Lab ``bible'' on the subject, had a seminal impact on subsequent works, including the Rad Lab Series. Because of Hansen's failing health, his postwar work, and MIT-Stanford rivalries, the Notes were never published, languishing as an underground classic. I have located remaining copies, and will publish the Notes with a biography honoring the centenary of Hansen's birth. After the war, Hansen founded Stanford's Microwave Laboratory to develop powerful klystrons and linear accelerators. He collaborated with Felix Bloch in the discovery of nuclear magnetic resonance. Hansen experienced first-hand Stanford's evolution from its depression-era physics department to corporate, then government funding. Hansen's brilliant career was cut short by his death in 1949, after his induction in the National Academy of Sciences. His ideas were carried on in Stanford's two-mile long linear accelerator and the development of Silicon Valley.

  10. 42 CFR 32.91 - Purchase of services for Hansen's disease patients.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 42 Public Health 1 2011-10-01 2011-10-01 false Purchase of services for Hansen's disease patients... MEDICAL CARE AND EXAMINATIONS MEDICAL CARE FOR PERSONS WITH HANSEN'S DISEASE AND OTHER PERSONS IN EMERGENCIES Persons with Hansen's Disease § 32.91 Purchase of services for Hansen's disease patients....

  11. 42 CFR 32.91 - Purchase of services for Hansen's disease patients.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 42 Public Health 1 2012-10-01 2012-10-01 false Purchase of services for Hansen's disease patients... MEDICAL CARE AND EXAMINATIONS MEDICAL CARE FOR PERSONS WITH HANSEN'S DISEASE AND OTHER PERSONS IN EMERGENCIES Persons with Hansen's Disease § 32.91 Purchase of services for Hansen's disease patients....

  12. 42 CFR 32.91 - Purchase of services for Hansen's disease patients.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 42 Public Health 1 2013-10-01 2013-10-01 false Purchase of services for Hansen's disease patients... MEDICAL CARE AND EXAMINATIONS MEDICAL CARE FOR PERSONS WITH HANSEN'S DISEASE AND OTHER PERSONS IN EMERGENCIES Persons with Hansen's Disease § 32.91 Purchase of services for Hansen's disease patients....

  13. 42 CFR 32.91 - Purchase of services for Hansen's disease patients.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 42 Public Health 1 2014-10-01 2014-10-01 false Purchase of services for Hansen's disease patients... MEDICAL CARE AND EXAMINATIONS MEDICAL CARE FOR PERSONS WITH HANSEN'S DISEASE AND OTHER PERSONS IN EMERGENCIES Persons with Hansen's Disease § 32.91 Purchase of services for Hansen's disease patients....

  14. 42 CFR 32.91 - Purchase of services for Hansen's disease patients.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 42 Public Health 1 2010-10-01 2010-10-01 false Purchase of services for Hansen's disease patients... MEDICAL CARE AND EXAMINATIONS MEDICAL CARE FOR PERSONS WITH HANSEN'S DISEASE AND OTHER PERSONS IN EMERGENCIES Persons with Hansen's Disease § 32.91 Purchase of services for Hansen's disease patients....

  15. Hansen's disease with McCune-Albright syndrome.

    PubMed

    Kumar, Kvs Hari; Dhull, P; Bisht, Ys

    2012-10-01

    McCune-Albright syndrome (MAS) comprises a triad of fibrous dysplasia of bone, café-au-lait macule, and endocrinopathy. The disease is due to activating mutation of G protein-coupled receptor leading to hyperfunction of glands. Hansen's disease is caused by infection with Mycobacterium leprae and is seen with underlying immunosuppressed conditions in genetically predisposed individuals. We recently encountered a patient with Hansen's disease along with underlying MAS and report the same in this report.

  16. Peter Andreas Hansen and the astronomical community - a first investigation of the Hansen papers. (German Title: Peter Andreas Hansen und die astronomische Gemeinschaft - eine erste Auswertung des Hansen-Nachlasses. )

    NASA Astrophysics Data System (ADS)

    Schwarz, Oliver; Strumpf, Manfred

    The literary assets of Peter Andreas Hansen are deposited in the Staatsarchiv Hamburg, the Forschungs- und Landesbibliothek Gotha and the Thüringer Staatsarchiv Gotha. They were never systematically investigated. We present here some results of a first evaluation. It was possible to reconstruct the historical events with regard to the maintenance of the Astronomische Nachrichten and the Altona observatory in 1854. Hansen was a successful teacher for many young astronomers. His way of stimulating the evolution of astronomy followed Zach's tradition.

  17. [Armauer Hansen (1841-1912), portrait of a Nordic pioneer].

    PubMed

    Hansen, Willy; Freney, Jean

    2002-01-01

    Desending from a Danish family, Gerhard Henrik Armauer Hansen was born in Bergan, Norway, on 29 July, 1841. Graduated in medicine in 1866 from the University at Christiana (the former name of Oslo), he started his medical career as an assistant physician at the National Hospital of Oslo for one year, working afterwards as a medical officer for a fishing company outside the Arctic Circle. Taking not well his routine job, he soon returned to Bergen where he began his work on a disease known as leprosy at the age of 26 and as an assistant of D.C. Danielssen at the Lungegaarden Hospital. There he engaged in research and investigations on the nature of the disease. Studying the various types of leprosy (skin, nerve and visceral lesions), he was awarded, one year after beginning his work, the gold metal of the University for his first publication on the disease. While Danielssen leaned toward heredity as a dominant factor in leprosy, Hansen's conviction was that the disease must have an infectious causal agent. In about 1871, Hansen began to observe tiny little rods in tissue specimens and considered they could be the ethiologic agent of leprosy, the more he found these rods in all the infiltrated nodular lesions in his patients. Finally, he proposed on February 28, 1873, that the rods were bacilli, responsible of leprosy. Promoted to the rank of Chief of the Leprosy Service in 1875, he held his job for 37 years; Hansen's entire adult life was spent at work in leprosy. He edited the journal . Hansen was also an eminent zoologist engaged in studies involving mollusks and worms; Since 1874, he was president of the Bergen Museum of Natural History. Armauer Hansen died on February 12, 1912, and the funeral ceremonies took place in the Museum of Bergen where his ashes are still kept.

  18. Problems of millipound thrust measurement. The "Hansen Suspension"

    SciTech Connect

    Carta, David G.

    2014-03-31

    Considered in detail are problems which led to the need and use of the 'Hansen Suspension'. Also discussed are problems which are likely to be encountered in any low level thrust measuring system. The methods of calibration and the accuracies involved are given careful attention. With all parameters optimized and calibration techniques perfected, the system was found capable of a resolution of 10 {mu} lbs. A comparison of thrust measurements made by the 'Hansen Suspension' with measurements of a less sophisticated device leads to some surprising results.

  19. [The etiology of leprosy and Gerhard Henrik Armauer Hansen: what does "Armauer" mean?].

    PubMed

    Hundeiker, M

    2014-09-01

    Hansen discovered the bacteria in 1873 in unstained material and is therefore recognized as the discoverer of the leprosy pathogen. Hansen is a very common surname but in contrast Armauer is a very rare surname. Gerhard Henrik Hansen added the maiden name of his grandmother on his mother's side to his name early on. This happened not only out of family attachments but also as a physician and aspiring scientist to set himself apart from other Hansens.

  20. Extended Hansen solubility approach: naphthalene in individual solvents.

    PubMed

    Martin, A; Wu, P L; Adjei, A; Beerbower, A; Prausnitz, J M

    1981-11-01

    A multiple regression method using Hansen partial solubility parameters, delta D, delta p, and delta H, was used to reproduce the solubilities of naphthalene in pure polar and nonpolar solvents and to predict its solubility in untested solvents. The method, called the extended Hansen approach, was compared with the extended Hildebrand solubility approach and the universal-functional-group-activity-coefficient (UNIFAC) method. The Hildebrand regular solution theory was also used to calculate naphthalene solubility. Naphthalene, an aromatic molecule having no side chains or functional groups, is "well-behaved', i.e., its solubility in active solvents known to interact with drug molecules is fairly regular. Because of its simplicity, naphthalene is a suitable solute with which to initiate the difficult study of solubility phenomena. The three methods tested (Hildebrand regular solution theory was introduced only for comparison of solubilities in regular solution) yielded similar results, reproducing naphthalene solubilities within approximately 30% of literature values. In some cases, however, the error was considerably greater. The UNIFAC calculation is superior in that it requires only the solute's heat of fusion, the melting point, and a knowledge of chemical structures of solute and solvent. The extended Hansen and extended Hildebrand methods need experimental solubility data on which to carry out regression analysis. The extended Hansen approach was the method of second choice because of its adaptability to solutes and solvents from various classes. Sample calculations are included to illustrate methods of predicting solubilities in untested solvents at various temperatures. The UNIFAC method was successful in this regard.

  1. A note on Hansen's coefficients in satellite theory

    NASA Technical Reports Server (NTRS)

    Giacaglia, G. E. O.

    1976-01-01

    General formulas for Hansen's coefficients in satellite theory are derived along with expressions for the eccentricity functions G and H. Recurrence relations for the eccentricity functions and their derivatives are obtained which are valid for all values of the parameter p. It is noted that the recurrence relations obtained by Challe and Laclaverie (1969) as well as by Balmino (1973) do not satisfy certain parity conditions and therefore involve coefficients outside the range of usage.

  2. Closed loop identification using a modified Hansen scheme

    NASA Astrophysics Data System (ADS)

    Sekunda, A.; Niemann, H.; Kjølstad Poulsen, N.; Santos, I.

    2015-11-01

    It is often not feasible or even impossible to identify a plant in open loop. This might be because the plant contains unstable poles, or it is simply too expensive to remove the plant from its intended operation, among other possibilities. There are several methods for identifying a plant in closed loop [4], and one such method is the Hansen scheme [1]. Standard identification using Hansen scheme demands generating the identification signals indirectly. In this paper it is instead proposed to use the relationship between the Youla factorization of a plant and its stabilizing controller to directly measure the signals used for identification. A simulation example and identification of a gas bearing is given to show the method in action. Rotors supported by controllable gas bearings are open loop stable systems. However as the rotational speed is increased feedback control is necessary in order to keep the system stable. Furthermore because the dynamics of such a system depends on the rotational speed it is needed to conduct an identification while the system is part of a closed loop scheme. The authors believe the paper able to contribute towards a simpler and more direct way of identifying closed loop plants using Hansen scheme.

  3. The Value of Social Constructionism for the Counseling Profession: A Reply to Hansen

    ERIC Educational Resources Information Center

    Rudes, James; Guterman, Jeffrey T.

    2007-01-01

    The authors reply to J. T. Hansen's (2005) call for the profession to revalue the inner subjective experiences (ISE) of clients. Hansen argued that social constructionism has influenced the decline of the counseling profession by obscuring its unique focus on ISE. The authors maintain that social constructionism is a useful framework for…

  4. Extending the Dialogue about Science and Humanities in Counseling: A Reply to Hansen

    ERIC Educational Resources Information Center

    Martin, Clayton V.; Guterman, Jeffrey T.; Kopp, David M.

    2012-01-01

    This is a reply to Hansen's (2012b) rejoinder to the authors (Guterman, Martin, & Kopp, 2012), which is a response to Hansen's (2012a) keystone article about the relationship between humanities and science in counseling. In this reply, the authors provide remaining clarifications, points of disagreement, and suggestions for future directions in…

  5. A Return to the Human in Humanism: A Response to Hansen's Humanistic Vision

    ERIC Educational Resources Information Center

    Lemberger, Matthew E.

    2012-01-01

    In his extension of the humanistic vision, Hansen (2012) recommends that counseling practitioners and scholars adopt operations that are consistent with his definition of a multiple-perspective philosophy. Alternatively, the author of this article believes that Hansen has reduced the capacity of the human to interpret meaning through quantitative…

  6. [Hansen's disease in the northern region of Brazil--1986].

    PubMed

    Britto, R da S

    1989-12-01

    Some general facts about Hansen's Disease are presented: in the world, in the Americas, in 1986, with the purpose to focalize on the Northern Region of Brazil (Amazon Valley) where an attempt is made to specify, State, the clinical forms in the active registry, the respective coefficients of Prevalence, about the cases detected during the year, by clinical forms and the correspondent Coefficient of Incidence, the age range of less than 15 years, and above 15 years; and to analyze according to the township in the State of Amazonas in a series of 8 years, from 1979 to 1986, the registered cases under control and also without control, the new cases, by clinical form and Coefficient of Incidence, the positive cases among students in the capital and also in the country, and with more details, still by township and by Public Health Registry, in 1986, with the population, new cases, and Coefficient of Incidence, cases of the active registry, cases under control, Coefficient of Incidence, the relationship between patients/inhabitants, cases according to the decreasing intensity as far as the Prevalence and Health Department Regions: all this to give an idea, in detail, inclusive statistics, of the real position of Hansen's Disease in the Northern Region (Amazon Valley), with the highest figures of Prevalence and even of Incidence, in comparison with other Regions of the country, and to stress the grave situation of the endemic proportions of the disease, in Brazil in general and in that Regions, in particular.

  7. Chronicles of Gerhard-Henrik Armauer Hansen's Life and Work.

    PubMed

    Ghosh, Sangita; Chaudhuri, Soumik

    2015-01-01

    Gerhard-Henrik Armauer Hansen, a Norwegian scientist, discovered Mycobacterium leprae as the causative organism for leprosy, defying the hereditary affliction theory of the disease. He was born in Bergen, Norway in 1841 in a Danish family. After acquiring his medical degree in 1866 from the University of Oslo, he joined as an assistant physician in a leprosy hospital in Bergen. In 1873, he published his report claiming leprosy to be an infectious disease with a description of the infectious material in leprous tissue. His conviction of belief and an unstinted devotion to a lifetime of scientific research changed the way leprosy was approached as a disease. It was the fruit of his untiring work that the amended act of 1885 was passed, which resulted in steady decline in leprosy burden in Norway. In February 1912 he breathed his last, leaving behind an inspirational story of a brave heart scientist who fought all odds to unveil the truth for the benefit of mankind.

  8. Surface state of carbon nanotubes and Hansen solubility parameters.

    PubMed

    Detriche, S; Nagy, J B; Mekhalif, Z; Delhalle, J

    2009-10-01

    Carbon nanotubes (CNTs) are often described as insoluble or poorly soluble in organic solvents. In a recent study, we have reported that nonfunctionalized CNTs can be solubilized in suitably chosen organic solvents. Furthermore, their solubility could be understood in terms of the Hansen Solubility Parameters (HSPs). The present work addresses further the question of the CNTs solubility by considering a larger range of solvents. A second part is devoted to the application of the HSPs to two types of functionalized CNTs: oxidized and silanized. These results stress the critical role played by the surface state of the CNTs, on the one hand, and the interest in using the HSPs to guide solubility investigations, on the other hand.

  9. Role of Hansen solubility parameters in solid phase extraction.

    PubMed

    Bielicka-Daszkiewicz, K; Voelkel, A; Pietrzyńska, M; Héberger, K

    2010-08-27

    The sorbent-eluent systems combined from eight polymeric sorbents and seven solvents as eluents were used for the extraction of phenol and its oxidation products from water samples. The individual interactions between sorbents, eluents and analytes were characterized by Hansen solubility parameters. Principal components analysis (PCA) was used for revealing the dominant interactions (dispersive, polar, and hydrogen bonding type) in sorbent-analyte-eluent systems. The importance of solubility parameters was also determined by a novel procedure based on sum of ranking differences (SRD). Although PCA and ranking by SRD are based on different principles and calculations, they have provided very similar results. The recovery in a given system has been predicted from the magnitudes of mutual interactions (sorbent-analyte, sorbent-eluent, analyte-eluent) by multiple linear regression.

  10. Extended Hansen approach: calculating partial solubility parameters of solid solutes.

    PubMed

    Wu, P L; Beerbower, A; Martin, A

    1982-11-01

    A multiple linear regression method, known as the extended Hansen solubility approach, was used to estimate the partial solubility parameters, delta d, delta p, and delta h for crystalline solutes. The method is useful, since organic compounds may decompose near their melting points, and it is not possible, to determine solubility parameters for these solid compounds by the methods used for liquid solvents. The method gives good partial and total solubility parameters for naphthalene; with related compounds, less satisfactory results were obtained. At least three conditions, pertaining to the regression equation and the solvent systems, must be met in order to obtain reasonable solute solubility parameters. In addition to providing partial solubility parameters, the regression equations afford a calculation of solute solubility in both polar and nonpolar solvents.

  11. Hansen solubility parameters for polyethylene glycols by inverse gas chromatography.

    PubMed

    Adamska, Katarzyna; Voelkel, Adam

    2006-11-03

    Inverse gas chromatography (IGC) has been applied to determine solubility parameter and its components for nonionic surfactants--polyethylene glycols (PEG) of different molecular weight. Flory-Huggins interaction parameter (chi) and solubility parameter (delta(2)) were calculated according to DiPaola-Baranyi and Guillet method from experimentally collected retention data for the series of carefully selected test solutes. The Hansen's three-dimensional solubility parameters concept was applied to determine components (delta(d), delta(p), delta(h)) of corrected solubility parameter (delta(T)). The molecular weight and temperature of measurement influence the solubility parameter data, estimated from the slope, intercept and total solubility parameter. The solubility parameters calculated from the intercept are lower than those calculated from the slope. Temperature and structural dependences of the entopic factor (chi(S)) are presented and discussed.

  12. Indigenous Cases of Leprosy (Hansen's Disease) in Southern Mississippi.

    PubMed

    Marcos, Luis A; Dobbs, Thomas; Walker, Sue; Waller, William; Stryjewska, Barbara M

    2015-07-01

    Hansen's disease or leprosy is a chronic infection of the skin and peripheral nerves caused by Mycobacterium leprae. In the U.S., leprosy is mainly reported in immigrants, but indigenous leprosy cases have been also reported in this country, especially in semitropical southern states (i.e., Texas, Louisiana). The objective of this series of cases is to describe indigenous leprosy cases reported in southern Mississippi (MS) during the period 2012-2014. Information was collected from medical records at Hattiesburg Clinic and the MS Department of Health. Four cases were reported during the period of study (3 Caucasian males, 1 African-American woman). Non of visited endemic leprosy country. The age ranged from 60 to 83 years (median: 75.5 years). Of the four cases, three presented with a slowly progressive erythematous rash disseminated mainly on the thorax and abdomen, with a lesser degree on the extremities. The time between onset of rash until the diagnosis ranged from 5 to 16 months (median: 7 months). Only one case had direct contact with armadillos (blood exposure). Non of these patients had a history of immunosuppression. The most common symptoms were neuropathic pain (n=2), generalized pruritus (n=2) and loss of sensation in extremities (n=2). One case had severe peripheral neuropathy with muscle weakness, atrophy in left arm, and wasting on left hand. Skin biopsies showed diffuse granulomatous infiltrate with foamy histiocytes along with acid fast bacilli by Fite stain. By Ridley-Jopling classification system, three cases were diagnosis as lepromatous leprosy, and one, borderline lepromatous. Treatment included clofazimine, dapsone and rifampin that was offered free of charge by the National Hansen's Diseases Program, Baton Rouge, L.A. One patient did not tolerate therapy. In conclusion, a slowly progressive disseminated erythematous skin rash on the trunk should raise suspicion for leprosy in the elderly population in south MS.

  13. Truth and opinion in climate change discourse: the Gore-Hansen disagreement.

    PubMed

    Russill, Chris

    2011-11-01

    In this paper, I discuss the "inconvenient truth" strategy of Al Gore. I argue that Gore's notion of truth upholds a conception of science and policy that narrows our understanding of climate change discourse. In one notable exchange, Gore and NASA scientist, James Hansen, disagreed about whether scientific statements based on Hansen's computer simulations were truth or opinion. This exchange is featured in An Inconvenient Truth, yet the disagreement is edited from the film and presented simply as an instance of Hansen speaking "inconvenient truth". In this article, I compare the filmic representation of Hansen's testimony with the congressional record. I place their exchange in a broader historical perspective on climate change disputation in order to discuss the implications of Gore's perspective on truth.

  14. [Some immunological aspects in the reaccional states of Hansen disease].

    PubMed

    Rada, Elsa; Nacarid, Aranzazu; Convit, Jacinto

    2005-12-01

    The crucial clinical problem in leprosy is represented by episodes of intense inflammation that produce nerve damage. When Mycobacterium leprae has been eliminated by means of antibiotics, the death of the bacteria is not a complete solution to the damage caused in nerves. Two of the more frequent immunopathological phenomena in Hansen's disease are Type I, reactions, known as Reversal Reactions (RR), and Type II reactions, of which the most frequent and well known are those called Erythema Nodosum Leprosum (ENL). Type II reactions have been defined as an immunologic complication in multibacillary patients. Both types of reactions are accompanied mainly by the increase of pro-inflammatory cytokines TNF-alpha, IL-1, IL-2, IL-4, IL-6, IL-8, INF-gamma, IL-10, IL-12, among others. In a retrospective analysis of a population of 150 patients of the Central Service of Dermatology, Institute of Biomedicine, where these patients were subjected to Multidrug Therapy (MDT) and MDT + inmunotherapy (IMT), both groups presented type II reactions, but the group that additionally received inmunotherapy also presented type I reactions. In the group of patients that presented ENL, it appeared to be associated with the large amount of bacilli in their lesions.

  15. Chronicles of Gerhard-Henrik Armauer Hansen's Life and Work

    PubMed Central

    Ghosh, Sangita; Chaudhuri, Soumik

    2015-01-01

    Gerhard-Henrik Armauer Hansen, a Norwegian scientist, discovered Mycobacterium leprae as the causative organism for leprosy, defying the hereditary affliction theory of the disease. He was born in Bergen, Norway in 1841 in a Danish family. After acquiring his medical degree in 1866 from the University of Oslo, he joined as an assistant physician in a leprosy hospital in Bergen. In 1873, he published his report claiming leprosy to be an infectious disease with a description of the infectious material in leprous tissue. His conviction of belief and an unstinted devotion to a lifetime of scientific research changed the way leprosy was approached as a disease. It was the fruit of his untiring work that the amended act of 1885 was passed, which resulted in steady decline in leprosy burden in Norway. In February 1912 he breathed his last, leaving behind an inspirational story of a brave heart scientist who fought all odds to unveil the truth for the benefit of mankind. PMID:26120145

  16. Correlation of polymer performance and Hansen solubility parameters

    NASA Astrophysics Data System (ADS)

    Mania, Daniel Jobse

    Ready-to-use (RTU) grout is becoming more important to the finish and remodeling construction industry. Market research shows it to be a fast-growing product that not only is creating its own space but also is beginning to supplant existing technology. The original intent of this research was to investigate formulation parameters and how they affect grout performance. It was learned that particle size and oil absorption (OA) value are important filler properties that affect performance as much as adequate packing density and optimal pigment volume concentration (PVC) without going beyond critical PVC (CPVC). Polymer architecture was also determined to be extremely important, but difficult to predict. Properties such as tensile strength and elongation can be adequately modeled by polymer Tg, however, Tg alone is not a good predictor of hydrophobicity or stain repellency performance. This conundrum led to research into Hansen solubility parameters (HSP) and whether these could be used as performance predictive tools. Since HSP of polymers cannot be directly measured, Group Contribution Theory (GCT) had to be employed to estimate polymer HSP. It was determined that HSP is not as good of a performance predictor for physical strength properties, like tensile strength, as polymer Tg: but HSP does have utility for relative performance prediction of wet state properties such as hydrophobicity, stain repellency, or solvent resistance. It was further discovered that HSP may be useful with predicting relative performance of wet state properties such as wet tensile strength and elongation.

  17. Hansen solubility parameter as a tool to predict cocrystal formation.

    PubMed

    Mohammad, Mohammad Amin; Alhalaweh, Amjad; Velaga, Sitaram P

    2011-04-04

    The objective of this study was to investigate whether the miscibility of a drug and coformer, as predicted by Hansen solubility parameters (HSPs), can indicate cocrystal formation and guide cocrystal screening. It was also our aim to evaluate various HSPs-based approaches in miscibility prediction. HSPs for indomethacin (the model drug) and over thirty coformers were calculated according to the group contribution method. Differences in the HSPs between indomethacin and each coformer were then calculated using three established approaches, and the miscibility was predicted. Subsequently, differential scanning calorimetry was used to investigate the experimental miscibility and cocrystal formation. The formation of cocrystals was also verified using liquid-assisted grinding. All except one of the drug-coformers that were predicted to be miscible were confirmed experimentally as miscible. All tested theoretical approaches were in agreement in predicting miscibility. All systems that formed cocrystals were miscible. Remarkably, two new cocrystals of indomethacin were discovered in this study. Though it may be necessary to test this approach in a wide range of different coformer and drug compound types for accurate generalizations, the trends with tested systems were clear and suggest that the drug and coformer should be miscible for cocrystal formation. Thus, predicting the miscibility of cocrystal components using solubility parameters can guide the selection of potential coformers prior to exhaustive cocrystal screening work.

  18. Hansen solubility parameter analysis on the dispersion of zirconia nanocrystals.

    PubMed

    Wang, Sho-Hsun; Liu, Jia-Hong; Pai, Chin-Tung; Chen, Chien-Wei; Chung, Pao-Tang; Chiang, Anthony Shiaw-Tseh; Chang, Shinn-Jen

    2013-10-01

    Nanoparticle dispersible in a broad range of solvents is desirable when preparing an organic/inorganic nanocomposite. In this report, the dispersion behavior of carboxylate-grafted zirconia nanoparticle in 25 solvents covering a wide range of polarity was analyzed based on their Hansen solubility parameters (HSP). Particles grafted with alkyl-chain longer than four carbons could only be dispersed in non-polar solvents, while that grafted with acetic acid was dispersible in polar ones. However, particle modified with methacrylic acid (MA) was compatible with both types of solvents, which was rather unexpected. Further NMR analysis showed that the carboxylate-grafted samples contained a trace amount of triethanolamine (TEA) due to the particular ZrO2 synthesis process employed. The combination of the hydrophilic TEA ligand with the short hydrophobic tail of methacrylate broadened the range of compatible solvents from benzene to methanol. Such an extended solvent compatibility was observed previously only for nanoparticles covered with large polymer surfactants having both hydrophilic and hydrophobic groups. Achieving this with two small molecules having separate functional groups is crucial when one needs to maximize the inorganic content in a composite.

  19. Hansen's disease (Leprosy): current and future pharmacotherapy and treatment of disease-related immunologic reactions.

    PubMed

    Legendre, Davey P; Muzny, Christina A; Swiatlo, Edwin

    2012-01-01

    Hansen's disease, also known as leprosy, remains an important public health problem throughout the world, including North America. The causative microbe in Hansen's disease is Mycobacterium leprae, an acid-fast organism that is difficult to grow in vitro. The nine-banded armadillo is the major animal reservoir in the United States. Manifestations of disease vary based on host immune response and can range from tuberculoid to lepromatous leprosy (paucibacillary to multibacillary disease). Hansen's disease typically affects the skin, nerves, and eyes, and patients may present with skin lesions, weakness, numbness, eye pain, or loss of vision. Definitive diagnosis is based on a combination of physical examination findings and skin biopsy and/or smear. Modern antibacterial therapy typically consists of combinations of dapsone and rifampin with or without clofazimine. Clofazimine is available only as an investigational drug through the National Hansen's Disease Program. Other options include moxifloxacin, ofloxacin, minocycline, and clarithromycin. Hansen's disease is associated with type 1 (reversal) and type 2 (erythema nodosum leprosum) immunologic reactions, during which the disease process appears to worsen dramatically. These reactions may occur at any time before, during, or after treatment. Antibacterial therapy should usually be continued during these reactions. Treatment options for these reactions differ based on clinical manifestations and include corticosteroids, thalidomide, pentoxiphylline, tumor necrosis factor inhibitors, and T cell inhibitors. Prompt diagnosis, antimicrobial therapy, and treatment of reactions dramatically reduce complications of the disease.

  20. Prediction of Hansen Solubility Parameters with a New Group-Contribution Method

    NASA Astrophysics Data System (ADS)

    Stefanis, Emmanuel; Panayiotou, Costas

    2008-04-01

    A group-contribution method for the estimation of Hansen solubility parameters of pure organic compounds is presented. It uses two kinds of characteristic groups: first-order groups that describe the basic molecular structure of compounds and second-order groups, which are based on the conjugation theory and improve the accuracy of predictions. A large variety of characteristic groups ensure the prediction of Hansen solubility parameters for a broad series of organic compounds, including those having complex multi-ring, heterocyclic, and aromatic structures. The predictions are exclusively based on the molecular structure of compounds, and no experimental data are needed. The predicted values permit a fairly reliable selection of solvents based on the radius of a Hansen solubility parameter sphere or on a Teas parameter ternary plot. Especially designed algorithms permit the preparation of a list of new molecular structures which, if synthesized, could be the ideally suited solvents for a series of corresponding applications.

  1. 75 FR 6694 - Lewis and Clark National Wildlife Refuge and Julia Butler Hansen Refuge for the Columbian White...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-02-10

    ... the Columbian White-Tailed Deer AGENCY: Fish and Wildlife Service, Interior. ACTION: Notice of... National Wildlife Refuge and Julia Butler Hansen Refuge for the Columbian White-tailed Deer (refuge or... The Julia Butler Hansen Refuge for the Columbian White-tailed Deer was established in...

  2. Effectiveness of cervical hemilaminectomy in canine Hansen Type I and Type II disc disease: a retrospective study.

    PubMed

    Schmied, Oliver; Golini, Lorenzo; Steffen, Frank

    2011-01-01

    Medical records of 41 dogs, including 15 small breed dogs (<15 kg) and 26 large breed dogs (>15 kg), with cervical intervertebral disc disease (IVDD) that underwent a hemilaminectomy were reviewed. Dogs were diagnosed using myelography, computed tomography/myelography, or MRI, and dogs were classified as having either Hansen Type I disc extrusion or Hansen Type II disc protrusion located ventrally, ventrolaterally, or laterally within the cervical spinal canal. The most common clinical presentation was ambulatory tetraparesis and/or lameness (44%). The most affected sites for cervical IVDD were between the sixth and seventh cervical vertebrae (C6-C7; 78% of Hansen Type II discs) and C2-C3 (86% of Hansen Type I discs). Treatment was effective in 88% of dogs. Five large breed dogs (12%) did not improve. In dogs with a Hansen Type I disc extrusion, clinical signs improved in 96% of the cases. In dogs with a Hansen Type II disc protrusion, an excellent and good outcome was seen in 47% and 32% of cases, respectively. Outcome was significantly better for small breed dogs and dogs with Hansen Type I disc disease compared with large breed dogs and dogs with Hansen Type II disc disease.

  3. 42 CFR 22.1 - Duty at a station of the Service devoted to the care of Hansen's disease patients; additional pay.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... care of Hansen's disease patients; additional pay. 22.1 Section 22.1 Public Health PUBLIC HEALTH... Hansen's Disease Duty by Personnel Other Than Commissioned Officers § 22.1 Duty at a station of the Service devoted to the care of Hansen's disease patients; additional pay. (a) Non-commissioned...

  4. 42 CFR 22.1 - Duty at a station of the Service devoted to the care of Hansen's disease patients; additional pay.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... care of Hansen's disease patients; additional pay. 22.1 Section 22.1 Public Health PUBLIC HEALTH... Hansen's Disease Duty by Personnel Other Than Commissioned Officers § 22.1 Duty at a station of the Service devoted to the care of Hansen's disease patients; additional pay. (a) Non-commissioned...

  5. 42 CFR 22.1 - Duty at a station of the Service devoted to the care of Hansen's disease patients; additional pay.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... care of Hansen's disease patients; additional pay. 22.1 Section 22.1 Public Health PUBLIC HEALTH... Hansen's Disease Duty by Personnel Other Than Commissioned Officers § 22.1 Duty at a station of the Service devoted to the care of Hansen's disease patients; additional pay. (a) Non-commissioned...

  6. 42 CFR 22.1 - Duty at a station of the Service devoted to the care of Hansen's disease patients; additional pay.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... care of Hansen's disease patients; additional pay. 22.1 Section 22.1 Public Health PUBLIC HEALTH... Hansen's Disease Duty by Personnel Other Than Commissioned Officers § 22.1 Duty at a station of the Service devoted to the care of Hansen's disease patients; additional pay. (a) Non-commissioned...

  7. 42 CFR 22.1 - Duty at a station of the Service devoted to the care of Hansen's disease patients; additional pay.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... care of Hansen's disease patients; additional pay. 22.1 Section 22.1 Public Health PUBLIC HEALTH... Hansen's Disease Duty by Personnel Other Than Commissioned Officers § 22.1 Duty at a station of the Service devoted to the care of Hansen's disease patients; additional pay. (a) Non-commissioned...

  8. Surviving the "School of Slavery": Acculturation in Sharon Draper's "Copper Sun" and Joyce Hansen's "The Captive"

    ERIC Educational Resources Information Center

    Chandler, Karen Michele

    2016-01-01

    Although children's literature has long alluded to cultural connections between Africans and African Americans, very few texts establish clear lines of influence between particular African ethnic groups and African American characters and communities. Joyce Hansen's "The Captive" (1994) and Sharon Draper's "Copper Sun" (2006)…

  9. Gerhard Henrik Armauer Hansen (1841-1912)--100 years anniversary tribute.

    PubMed

    Grzybowski, Andrzej; Kluxen, Guido; Pótorak, Klaudia

    2014-05-01

    2012 marks the 100th year of death of Gerhard Henrik Armauer Hansen (1841-1912), who discovered Mycobacterium leprae, but also gave the first systematic scientific work on the leprosy of the eye. The article reviews his life and scientific achievements with special regard to eye and ophthalmology.

  10. Reaffirming the Role of Science and Diversity in Counseling: A Reply to Hansen

    ERIC Educational Resources Information Center

    Brady-Amoon, Peggy

    2012-01-01

    Overall, Hansen (2012a) and the author (Brady-Amoon, 2012) share a humanistic vision for the future of counseling. In this continued dialogue, the author argues that a broad-based philosophy of science that encompasses renewed respect for diversity remains essential for the future of the profession.

  11. Further Extending the Humanistic Vision for the Future of Counseling: A Response to Hansen

    ERIC Educational Resources Information Center

    Brady-Amoon, Peggy

    2012-01-01

    This article offers additional support for Hansen's (2012) position that humanism and a renewed respect for human complexity are essential to counseling. In the article, the author also speaks to the critical importance of continuing to ground the profession in art and science. Implications for the future of humanism and counseling are presented.

  12. An Interview with Sunny Hansen: Pioneer and Innovator in Counseling and Career Development

    ERIC Educational Resources Information Center

    Skovholt, Thomas S.; Hage, Sally M.; Kachgal, Mera M.; Gama, Elizabeth Pinheiro

    2007-01-01

    During her 45-year career, Sunny Hansen was a pioneer and innovator in counseling and career development. She has lived the holistic life about which she writes and teaches. In this interview, she discussed the major influences on her life, the evolution of her professional career from English and journalism teacher to counselor and counselor…

  13. A revision of Megagraphydrus Hansen (Coleoptera, Hydrophilidae): synonymization with Agraphydrus Régimbart and description of seven new species.

    PubMed

    Minoshima, Yûsuke N; Komarek, Albrecht; Ôhara, Masahiro

    2015-03-10

    The genus Megagraphydrus Hansen, 1999 is revised. Eleven of the twelve previously described species are recognized as valid, with Megagraphydrus wangi Hebauer, 2000 syn. nov. found to be a junior synonym of M. politus Hansen, 1999. Most significantly, Megagraphydrus itself is found to be a junior synonym of Agraphydrus Régimbart, 1903. The species are assigned to the subgenus Agraphydrus. This nomenclatural act results in the following new combinations: Agraphydrus (Agraphydrus) anhuianus (Hebauer, 2000) comb. nov., A. (A.) attenuatus (Hansen, 1999) comb. nov., A. (A.) jaechi (Hansen, 1999) comb. nov., A. (A.) luteilateralis (Minoshima & Fujiwara, 2009) comb. nov., A. (A.) malayanus (Hebauer, 2000) comb. nov., A. (A.) politus (Hansen, 1999) comb. nov., A. (A.) puzhelongi (Jia, 2010) comb. nov., A. (A.) regularis (Hansen, 1999) comb. nov., A. (A.) siamensis (Hansen, 1999) comb. nov., A. (A.) superans (Hebauer, 2000) comb. nov., and A. (A.) uvaensis (Hebauer, 2000) comb. nov. All species are redescribed with the exclusion of A. superans, A. luteilateralis, and A. puzhelongi. Seven new species are described: Agraphydrus (Agraphydrus) biprojectus sp. nov., A. (A.) coronarius sp. nov., A. (A.) decipiens sp. nov., A. (A.) insidiator sp. nov., A. (A.) masatakai sp. nov., A. (A.) montanus sp. nov., A. (A.) thaiensis sp. nov. Digital and SEM photographs are provided, and the male and female genital segments are illustrated and described.

  14. A review of Elocomosta Hansen with a description of a new species with reduced eyes from China (Coleoptera, Hydrophilidae, Sphaeridiinae)

    PubMed Central

    Lin, Renchao; Jia, Fenglong; Fikáček, Martin

    2016-01-01

    Abstract A new species of the genus Elocomosta Hansen, 1989 (Coleoptera: Hydrophilidae: Sphaeridiinae: Coelostomatini), Elocomosta lilizheni sp. n., is described from Guangxi Province, China. It is compared in detail with the only other known species of the genus, Elocomosta nigra Hansen, 1989 from Borneo, and the genus is diagnosed from the remaining coelostomatine genera. The new species is unusual among Hydrophilidae by having extremely reduced eyes. PMID:27551232

  15. Kinetics of 12-Hydroxyoctadecanoic Acid SAFiN Crystallization Rationalized Using Hansen Solubility Parameters.

    PubMed

    Rogers, Michael A; Marangoni, Alejandro G

    2016-12-06

    Changes in solvent chemistry influenced kinetics of both nucleation and crystallization of 12-hydroxyoctadecenoic, as determined using differential scanning calorimetry and applying a modified Avrami model to the calorimetric data. Altering solvent properties influenced solvent-gelator compatibility, which in turn altered the chemical potential of the system at the onset of crystallization, the kinetics of gelation, and the resulting 12HOA crystal fiber length. The chemical potential at the onset of crystallization was linearly correlated to both the hydrogen-bonding Hansen solubility parameter and the solvent-gelator vectorial distance in Hansen space, Ra. Our work suggests that solvent properties can be modulated to affect the solubility of 12HOA, which in turn influences the kinetics of crystallization and the self-assembly of this organogelator into supramolecular crystalline structures. Therefore, modulation of solvent properties during organogelation can be used to control fiber length and thus engineer the physical properties of the gel.

  16. A Modified Hansen's Theory as Applied to the Motion of Artificial Satellites

    NASA Technical Reports Server (NTRS)

    Musen, Peter

    1960-01-01

    This report presents a theory of oblateness perturbations of the orbits of artificial satellites based on Hansen's theory, with modification for adaptation to fast machine computation. The theory permits the easy inclusion of any gravitational terms and is suitable for the deduction of geo-physical and geodetic data from orbit observations on artificial satellites. The computations can be carried out to any desired order compatible with the accuracy of the geodetic parameters.

  17. Optimization of subcritical fluid extraction of bioactive compounds using Hansen solubility parameters.

    PubMed

    Srinivas, K; King, J W; Monrad, J K; Howard, L R; Hansen, C M

    2009-08-01

    Process engineering operations in food and nutraceutical industries pertaining to the design of extraction of value-added products from biomass using pressurized liquids involve a careful selection of the solvent and optimal temperature conditions to achieve maximum yield. Complex molecular structure and limited physical property data in the literature of biological solutes extracted from biomass compounds have necessitated the process modeling of such operations. In this study, we have applied the Hansen 3-dimensional solubility parameter concept to optimize the extraction of molecularly complex solutes using subcritical fluid solvents. Hansen solubility spheres characterized by the relative energy differences (RED) have been used to characterize and quantify the solute-subcritical solvent interactions as a function of temperature. The solvent power of subcritical water and compressed hydroethanolic mixtures above their boiling points has been characterized using the above-mentioned method. The use of group contribution methods in collaboration with computerized algorithms to plot the Hansen spheres provides a quantitative prediction tool for optimizing the design of extraction conditions. The method can be used to estimate conditions for solute-solvent miscibility, an optimum temperature range for conducting extractions under pressurized conditions, and approximate extraction conditions of solutes from natural matrices.

  18. Validity of Hansen-Roach cross sections in low-enriched uranium systems

    SciTech Connect

    Busch, R.D. ); O'Dell, R.D. )

    1991-01-01

    Within the nuclear criticality safety community, the Hansen-Roach 16 group cross section set has been the standard'' for use in k{sub eff} calculations over the past 30 years. Yet even with its widespread acceptance, there are still questions about its validity and adequacy, about the proper procedure for calculating the potential scattering cross section, {sigma}{sub p}, for uranium and plutonium, and about the concept of resonance self shielding and its impact on cross sections. This paper attempts to address these questions. It provides a brief background on the Hansen-Roach cross sections. Next is presented a review of resonances in cross sections, self shielding of these resonances, and the use of {sigma}{sub p} to characterize resonance self shielding. Three prescriptions for calculating {sigma}{sub p} are given. Finally, results of several calculations of k{sub eff} on low-enriched uranium systems are provided to confirm the validity of the Hansen-Roach cross sections when applied to such systems.

  19. Evaluating the Reliability and Reproducibility of the AO and Lauge-Hansen Classification Systems for Ankle Injuries.

    PubMed

    Yin, Meng-Chen; Yuan, Xue-Fei; Ma, Jun-Ming; Xia, Ye; Wang, Tao; Xu, Xiao-Li; Yan, Yin-Jie; Xu, Jin-Hai; Ye, Jie; Tong, Zheng-Yi; Feng, Yan-Qi; Wang, Hong-Bo; Wu, Xue-Qun; Mo, Wen

    2015-07-01

    Ankle injuries are responsible for more than 5 million emergency department visits each year. The AO and Lauge-Hansen classification systems are widely used in the clinical diagnosis of ankle injuries. This study aimed to analyze the intraobserver reliability and interobserver reproducibility of the AO and Lauge-Hansen classification systems. In addition, the authors explored the differences among physicians' classification responses and evaluated the clinical value for diagnosis. Fifty-six patients with an ankle injury with complete clinical and radiologic data were enrolled. The definition of injury type, the index score typing methods, and the specific study criteria were explained in detail. Five observers, who were orthopedic surgeons, determined the classifications according to both the AO and Lauge-Hansen systems. The classification was repeated 1 month later. Cronbach's alpha and Cohen's kappa test were used to determine interobserver reliability and intraobserver reproducibility. The physicians conducted 560 classifications (56 cases × 5 physicians × 2 times per patient). Average inter- and intraobserver kappa values for the AO system were 0.708 and 0.608, respectively. Average inter- and intraobserver kappa values for the Lauge-Hansen system were 0.402 and 0.398, respectively. Cronbach's alpha coefficient was 96.7% for the AO system and 76.0% for the Lauge-Hansen system. The Lauge-Hansen classification system is a comprehensive yet cumbersome system. Comparatively, the AO classification system is easier to understand. This study shows that the AO classification system has more reliability and reproducibility, and thus has more value in clinical practice, than the Lauge-Hansen classification system.

  20. Relationship between swelling of hydroxypropylmethylcellulose and the Hansen and Karger partial solubility parameters.

    PubMed

    Navarro-Lupión, Francisco-Javier; Bustamante, Pilar; Escalera, Begoña

    2005-07-01

    A model that relates the equilibrium swelling of hydroxypropylmethylcellulose to the partial solubility parameters of both the polymer and the solvents is proposed to interpret and correlate the experimental data. The non-specific interactions are expressed as the dispersion delta(d) and polar delta(p) solubility parameters of Hansen, or as a combination of both. Hydrogen bonding is represented by the acidic delta(a) and the basic delta(b) Karger solubility parameters. The results are compared with models including the same parameters for non-specific interactions (delta(d) and delta(p)) and the Hansen hydrogen bonding parameter delta(h). Equilibrium swelling of this hydrophilic polymer that is widely used in drug formulation is measured in pure solvents covering a wide polarity range. In a qualitative way, swelling increases in solvents with higher Hildebrand solubility parameters and stronger hydrogen bonding capability, and it decreases in non-polar solvents. Single polarity indexes, such as the Hildebrand solubility parameter or the partition coefficient (PC), do not fit well the overall experimental data. The best correlations were obtained with the proposed model, providing at the same time an interpretation consistent with the physical meaning of the terms included in the equation. Swelling increases as the non-specific interactions of the polymer and the solvents become alike, and as the Lewis acid-base interactions of the polymer (1) and the solvent (2) represented by the products delta(1a)delta(2b) and delta(1b)delta(2a) become greater. Conversely, hydrogen bonding self association of the solvents (the product delta(1a)delta(1b)) lowers swelling. The results show that the Karger hydrogen bonding parameters provide a better approach than the Hansen hydrogen bonding parameter to correlate the swelling behavior of a hydrophilic polymer.

  1. First order post-Newtonian gravitational waveforms of binaries on eccentric orbits with Hansen coefficients

    NASA Astrophysics Data System (ADS)

    Mikóczi, Balázs; Forgács, Péter; Vasúth, Mátyás

    2015-08-01

    The inspiral and merger of supermassive black hole binary systems with high orbital eccentricity are among the promising sources of the advanced gravitational wave observatories. In this paper we compute gravitational waveforms in the frequency domain to the first post-Newtonian order, emitted by compact binary systems with arbitrary eccentricity. Our results are fully analytic, ready-to-use expressions of the waveforms in terms of a suitable generalization of Hansen coefficients known from celestial mechanics. Secular terms induced by the eccentricity are eliminated by introducing a suitable phase shift. The obtained waveforms have a rather simple structure, greatly facilitating their use in applications.

  2. Hansen Neuropathy: Still a Possible Diagnosis in the Investigation of a Peripheral Neuropathy.

    PubMed

    Veiga, Andreia; Costa, Alexandre; Taipa, Ricardo; Guimarães, António; Pires, Manuel Melo

    2015-01-01

    Introdução: A lepra continua a ser uma das causas mais frequentes de neuropatia periférica. Apesar de tida como erradicada em Portugal, ainda se documenta no estudo neuropatológico de doentes com clínica de neuropatia periférica sem diagnóstico etiológico definido.Material e Métodos: Revisão dos casos neuropatia por doença de Hansen diagnosticados na Unidade de Neuropatologia do Centro Hospitalar do Porto no período de 1978 e 2013 atendendo ao género, idade, manifestações clínicas e achados neuropatológicos.Resultados: Foram identificados 21 doentes com diagnóstico neuropatológico de neuropatia por doença de Hansen, com predomínio do sexo masculino. A idade média ao diagnóstico foi de 52 anos, sendo a sintomatologia sensitiva predominante. O intervalo entre sintomatologia e diagnóstico oscilou entre 1 a 38 anos. Na maioria foi identificada forma tuberculoide em biópsia de nervo e detetados bacilos em pele e nervo em 44% dos casos.Discussão: A mononeurite é a forma mais comum de apresentação de hanseníase, podendo cursar com outras manifestações clínicas incluindo lesões cutâneas. A infeção pelo M. leprae lesiona fibras mielinizadas e não mielinizadas, com substituição do tecido nervoso por colagénio resultando em fibrose. O diagnóstico da lepra é apenas conseguido por estudo neuropatológico das lesões cutâneas e/ou nervo periférico, adjuvado pela identificação do bacilo.Conclusão: A doença de Hansen continua a ser um problema de saúde pública em áreas tropicais e, apesar de rara, ainda descrita em países ocidentais, devendo ser considerada como uma hipótese de diagnóstico na investigação de neuropatia periférica.

  3. Organogel formation rationalized by Hansen solubility parameters: influence of gelator structure.

    PubMed

    Bonnet, Julien; Suissa, Gad; Raynal, Matthieu; Bouteiller, Laurent

    2015-03-21

    Some organic compounds form gels in liquids by forming a network of anisotropic fibres. Based on extensive solubility tests of four gelators of similar structures, and on Hansen solubility parameter formalism, we have probed the quantitative effect of a structural variation of the gelator structure on its gel formation ability. Increasing the length of an alkyl group of the gelator obviously reduces its polarity, which leads to a gradual shift of its solubility sphere towards lower δp and δh values. At the same time, its gelation sphere is shifted - to a much stronger extent - towards larger δp and δh values.

  4. Organogel formation rationalized by Hansen solubility parameters: dos and don'ts.

    PubMed

    Bonnet, Julien; Suissa, Gad; Raynal, Matthieu; Bouteiller, Laurent

    2014-05-14

    Some organic compounds gelate liquids by forming a network of anisotropic fibres. Hansen solubility parameters can be used to predict the range of liquids that are likely to be gelled by any given gelator. We critically review the various approaches recently proposed in the literature. In particular, we discuss the shape of the gelation domain, the relevance of the Teas plot representation and the use of group contribution calculations. We also propose an improved scheme for the solubility tests, and a detailed procedure for the determination of the gelation domain.

  5. Morphologies in Solvent-Annealed Clotrimazole Thin Films Explained by Hansen-Solubility Parameters.

    PubMed

    Ehmann, Heike M A; Zimmer, Andreas; Roblegg, Eva; Werzer, Oliver

    2014-03-05

    The induction of different crystal morphologies is of crucial importance for many applications. In this work, the preparation of various crystal morphologies within clotrimazole films on glass substrates is demonstrated. Amorphous clotrimazole thin films were transformed via vapor annealing into crystalline structures; highly monodisperse/multidisperse crystallites, spherulite, or dendritic structures were obtained as the solvent was exchanged. X-ray diffraction experiments reveal that the same polymorph is present for all samples but with varying texture. The achieved morphologies are explained in terms of Hansen-solubility parameters and vapor pressures; thus, the different morphologies and crystal orientations can be explained by solvent-solid interaction strengths within the thin film samples.

  6. Gerhard Henrik Armauer Hansen (1841-1912)--the 100th anniversary of the death of the discoverer of Mycobacterium leprae.

    PubMed

    Grzybowski, Andrzej; Sak, Jarosław; Pawlikowski, Jakub; Iwanowicz-Palus, Grażyna

    2013-01-01

    The year 2012 marked the 100th anniversary of the death of Gerhard Henrik Armauer Hansen (1841-1912), a Norwegian physician known for his identification of Mycobacterium leprae as the causative agent of leprosy. In the second half of the 19th century, the medical community believed leprosy had a noninfectious etiology, and it was not until Hansen uncovered the relationship between M leprae and the clinical manifestations of this disease did that belief begin to change. Strengthening of the late 19th and early 20th century beliefs of the infectious etiology of leprosy made it possible to develop an effective treatment for this still terrible disease.

  7. Hildebrand and Hansen solubility parameters from molecular dynamics with applications to electronic nose polymer sensors.

    PubMed

    Belmares, M; Blanco, M; Goddard, W A; Ross, R B; Caldwell, G; Chou, S-H; Pham, J; Olofson, P M; Thomas, Cristina

    2004-11-30

    We introduce the Cohesive Energy Density (CED) method, a multiple sampling Molecular Dynamics computer simulation procedure that may offer higher consistency in the estimation of Hildebrand and Hansen solubility parameters. The use of a multiple sampling technique, combined with a simple but consistent molecular force field and quantum mechanically determined atomic charges, allows for the precise determination of solubility parameters in a systematic way (sigma = 0.4 hildebrands). The CED method yields first-principles Hildebrand parameter predictions in good agreement with experiment [root-mean-square (rms) = 1.1 hildebrands]. We apply the CED method to model the Caltech electronic nose, an array of 20 polymer sensors. Sensors are built with conducting leads connected through thin-film polymers loaded with carbon black. Odorant detection relies on a change in electric resistivity of the polymer film as function of the amount of swelling caused by the odorant compound. The amount of swelling depends upon the chemical composition of the polymer and the odorant molecule. The pattern is unique, and unambiguously identifies the compound. Experimentally determined changes in relative resistivity of seven polymer sensors upon exposure to 24 solvent vapors were modeled with the CED estimated Hansen solubility components. Predictions of polymer sensor responses result in Pearson R2 coefficients between 0.82 and 0.99.

  8. From Paris to Lyon, and from simple to complex liquids: a view on Jean-Pierre Hansen's contribution

    NASA Astrophysics Data System (ADS)

    Barrat, Jean-Louis; Biben, Thierry; Bocquet, Lydéric

    2015-09-01

    We present a short perspective on some of the contributions made by Jean-Pierre Hansen to our theoretical understanding of soft matter static structure and dynamics, using the tools developed for simple liquids within the rigorous framework of statistical physics.

  9. Complex Type 2 Reactions in Three Patients with Hansen's Disease from a Southern United States Clinic.

    PubMed

    Leon, Kristoffer E; Salinas, Jorge L; McDonald, Robert W; Sheth, Anandi N; Fairley, Jessica K

    2015-11-01

    In non-endemic countries, leprosy, or Hansen's disease (HD), remains rare and is often underrecognized. Consequently, the literature is currently lacking in clinical descriptions of leprosy complications in the United States. Immune-mediated inflammatory states known as reactions are common complications of HD. Type 1 reactions are typical of borderline cases and occur in 30% of patients and present as swelling and inflammation of existing skin lesions, neuritis, and nerve dysfunction. Type 2 reactions are systemic events that occur at the lepromatous end of the disease spectrum, and typical symptoms include fever, arthralgias, neuritis, and classic painful erythematous skin nodules known as erythema nodosum leprosum. We report three patients with lepromatous leprosy seen at a U.S. HD clinic with complicated type 2 reactions. The differences in presentations and clinical courses highlight the complexity of the disease and the need for increased awareness of unique manifestations of lepromatous leprosy in non-endemic areas.

  10. Morphologies in Solvent-Annealed Clotrimazole Thin Films Explained by Hansen-Solubility Parameters

    PubMed Central

    2014-01-01

    The induction of different crystal morphologies is of crucial importance for many applications. In this work, the preparation of various crystal morphologies within clotrimazole films on glass substrates is demonstrated. Amorphous clotrimazole thin films were transformed via vapor annealing into crystalline structures; highly monodisperse/multidisperse crystallites, spherulite, or dendritic structures were obtained as the solvent was exchanged. X-ray diffraction experiments reveal that the same polymorph is present for all samples but with varying texture. The achieved morphologies are explained in terms of Hansen-solubility parameters and vapor pressures; thus, the different morphologies and crystal orientations can be explained by solvent—solid interaction strengths within the thin film samples. PMID:24624042

  11. Complex Type 2 Reactions in Three Patients with Hansen's Disease from a Southern United States Clinic

    PubMed Central

    Leon, Kristoffer E.; Salinas, Jorge L.; McDonald, Robert W.; Sheth, Anandi N.; Fairley, Jessica K.

    2015-01-01

    In non-endemic countries, leprosy, or Hansen's disease (HD), remains rare and is often underrecognized. Consequently, the literature is currently lacking in clinical descriptions of leprosy complications in the United States. Immune-mediated inflammatory states known as reactions are common complications of HD. Type 1 reactions are typical of borderline cases and occur in 30% of patients and present as swelling and inflammation of existing skin lesions, neuritis, and nerve dysfunction. Type 2 reactions are systemic events that occur at the lepromatous end of the disease spectrum, and typical symptoms include fever, arthralgias, neuritis, and classic painful erythematous skin nodules known as erythema nodosum leprosum. We report three patients with lepromatous leprosy seen at a U.S. HD clinic with complicated type 2 reactions. The differences in presentations and clinical courses highlight the complexity of the disease and the need for increased awareness of unique manifestations of lepromatous leprosy in non-endemic areas. PMID:26304919

  12. Using Hansen solubility parameters to study the encapsulation of caffeine in MOFs.

    PubMed

    Paseta, Lorena; Potier, Grégory; Abbott, Steven; Coronas, Joaquín

    2015-02-14

    Hansen solubility parameters (HSP) have found their greatest use in the evaluation of solvent-polymer chemical interactions. Given their great interest among the scientific community, host-guest interactions in metal-organic frameworks (MOFs), with organic and inorganic moieties, could benefit from a HSP approach. In this work we have initiated the application of HSP to the study of caffeine encapsulation in MOFs ZIF-8 and NH2-MIL-88B(Fe). However, the availability of HSP for MOFs is nearly zero. As a first step to evaluating the potential of HSP for rational design we have made the simplifying assumption that the HSP distance of the caffeine-ligand interaction (i.e. ignoring the metal and the MOF structure) dominates the ability to form a MOF host-guest system. Although much work remains to be done, the first indications are that this approach has much potential.

  13. New procedure for the determination of Hansen solubility parameters by means of inverse gas chromatography.

    PubMed

    Adamska, K; Bellinghausen, R; Voelkel, A

    2008-06-27

    The Hansen solubility parameter (HSP) seems to be a useful tool for the thermodynamic characterization of different materials. Unfortunately, estimation of the HSP values can cause some problems. In this work different procedures by using inverse gas chromatography have been presented for calculation of pharmaceutical excipients' solubility parameter. The new procedure proposed, based on the Lindvig et al. methodology, where experimental data of Flory-Huggins interaction parameter are used, can be a reasonable alternative for the estimation of HSP values. The advantage of this method is that the values of Flory-Huggins interaction parameter chi for all test solutes are used for further calculation, thus diverse interactions between test solute and material are taken into consideration.

  14. Application of Hansen solubility parameters for understanding and prediction of drug distribution in microspheres.

    PubMed

    Vay, Kerstin; Scheler, Stefan; Friess, Wolfgang

    2011-09-15

    In an emulsion solvent extraction/evaporation process for the preparation of microspheres the employed solvents have a tremendous influence on the characteristics of the resulting particles. Nevertheless the solvent selection is often based on empirical data rather than on calculated values. The purpose of this investigation was to use the concept of solubility parameters for interpretation and improved understanding of solvent effects in the process of microparticle preparation. Partial solubility parameters of 3-{2-[4-(6-Fluor-1,2-benzisoxazol-3-yl)piperidino]ethyl}-2-methyl-6,7,8,9-tetrahydro-4H-pyrido[1,2-a]pyrimidin-4-on, which was used as a model drug, were determined experimentally using an extended Hansen regression model. Poly(lactide-co-glycolide) microparticles were prepared with an emulsion solvent removal process employing methylene chloride and its mixtures with benzyl alcohol and n-butanol. It could be shown, that the encapsulation efficiency was influenced by the change of the solvent composition during the extraction process. Furthermore the solvent selection had an essential influence on the morphological state of the drug and it could be shown and explained, that by a decrease of the dissolving power a completely amorphous product was obtained.

  15. The expanded Hansen approach to solubility parameters. Paracetamol and citric acid in individual solvents.

    PubMed

    Barra, J; Lescure, F; Doelker, E; Bustamante, P

    1997-07-01

    In this study two solubility-parameter models have been compared using as dependent variables the logarithm of the mole fraction solubility, lnX2e, and ln(alpha)/U (originally used in the extended Hansen method), where alpha is the activity coefficient and U is a function of the molar volume of the solute and the volume fraction of the solvent. The results show for the first time the proton-donor and -acceptor hydrogen-bonding capacities of paracetamol, as measured by the acidic and basic partial-solubility parameters. The influence of solvents on the differential scanning calorimetry (DSC) pattern of the solid phases was also studied in relation to the solubility models tested. Citric acid was chosen as a test substance because of its high acidity and its proton donor capacity to form hydrogen bonds with basic solvents. The partial acidic and basic solubility parameters obtained from multiple regression were consistent with this property, validating the model chosen. The results show that the more direct lnX2e variable was more suitable for fitting both models, and the four-parameter model seemed better for describing the interactions between solvent and solute.

  16. Hansen solubility parameters of surfactant-capped silver nanoparticles for ink and printing technologies.

    PubMed

    Petersen, Jacob B; Meruga, Jeevan; Randle, James S; Cross, William M; Kellar, Jon J

    2014-12-30

    Optimal ink formulations, inclusive of nanoparticles, are often limited to matching the nanoparticle's capping agent or surface degree of polarity to the solvent of choice. Rather than relying on this single attribute, nanoparticle dispersibility was optimized by identifying the Hansen solubility parameters (HSPs) of decanoic-acid-capped 5 nm silver nanoparticles (AgNPs) by broad spectrum dispersion testing and a more specific binary solvent gradient dispersion method. From the HSPs, solvents were chosen to disperse poly(methyl methacrylate) (PMMA) and nanoparticles, give uniform evaporation profiles, and yield a phase-separated microstructure of nanoparticles on PMMA via film formation by solvent evaporation. The goal of this research was to yield a film that is reflective or transparent depending on the angle of incident light (i.e., optically variable). The nanoparticle HSPs were very close to alkanes with added small polar and hydrogen-bonding components. This led to two ink formulations: one of 90:10 vol % toluene/methyl benzoate and one containing 80:10:10 vol % toluene/p-xylene/mesitylene, both of which yielded the desired final microstructure of a nanoparticle layer on a PMMA film. This approach to nanoparticle ink formulation allows one to obtain an ink that has desirable dispersive qualities, rheology, and evaporation to give a desired printed structure.

  17. The link between a negative high resolution resist contrast/developer performance and the Flory-Huggins parameter estimated from the Hansen solubility sphere

    SciTech Connect

    StCaire, Lorri; Olynick, Deirdre L.; Chao, Weilun L.; Lewis, Mark D.; Lu, Haoren; Dhuey, Scott D.; Liddle, J. Alexander

    2008-07-01

    We have implemented a technique to identify candidate polymer solvents for spinning, developing, and rinsing for a high resolution, negative electron beam resist hexa-methyl acetoxy calix(6)arene to elicit the optimum pattern development performance. Using the three dimensional Hansen solubility parameters for over 40 solvents, we have constructed a Hansen solubility sphere. From this sphere, we have estimated the Flory Huggins interaction parameter for solvents with hexa-methyl acetoxy calix(6)arene and found a correlation between resist development contrast and the Flory-Huggins parameter. This provides new insights into the development behavior of resist materials which are necessary for obtaining the ultimate lithographic resolution.

  18. Delayed Diagnosis, Leprosy Reactions, and Nerve Injury Among Individuals With Hansen's Disease Seen at a United States Clinic.

    PubMed

    Leon, Kristoffer E; Jacob, Jesse T; Franco-Paredes, Carlos; Kozarsky, Phyllis E; Wu, Henry M; Fairley, Jessica K

    2016-03-01

    Background.  Hansen's disease (HD), or leprosy, is uncommon in the United States. We sought to describe the characteristics of patients with HD in a US clinic, including an assessment of delays in diagnosis and HD reactions, which have both been associated with nerve damage. Methods.  A retrospective chart review was conducted on patients seen at an HD clinic in the southern United States between January 1, 2002 and January 31, 2014. Demographic and clinical characteristics were summarized, including delays in diagnosis, frequency of reactions, and other complications including peripheral neuropathy. Results.  Thirty patients were seen during the study time period. The majority of patients were male (73%) and had multibacillary disease (70%). Brazil, Mexico, and the United States were the most frequent of the 14 countries of origin. Hansen's disease "reactions", severe inflammatory complications, were identified among 75% of patients, and nerve damage was present at diagnosis in 36% of patients. The median length of time between symptom onset and diagnosis was long at 12 months (range, 1-96), but no single factor was associated with a delay in diagnosis. Conclusions.  The diagnosis of HD was frequently delayed among patients referred to our US clinic. The high frequency of reactions and neuropathy at diagnosis suggests that further efforts at timely diagnosis and management of this often unrecognized disease is needed to prevent the long-term sequelae associated with irreversible nerve damage.

  19. Delayed Diagnosis, Leprosy Reactions, and Nerve Injury Among Individuals With Hansen's Disease Seen at a United States Clinic

    PubMed Central

    Leon, Kristoffer E.; Jacob, Jesse T.; Franco-Paredes, Carlos; Kozarsky, Phyllis E.; Wu, Henry M.; Fairley, Jessica K.

    2016-01-01

    Background. Hansen's disease (HD), or leprosy, is uncommon in the United States. We sought to describe the characteristics of patients with HD in a US clinic, including an assessment of delays in diagnosis and HD reactions, which have both been associated with nerve damage. Methods. A retrospective chart review was conducted on patients seen at an HD clinic in the southern United States between January 1, 2002 and January 31, 2014. Demographic and clinical characteristics were summarized, including delays in diagnosis, frequency of reactions, and other complications including peripheral neuropathy. Results. Thirty patients were seen during the study time period. The majority of patients were male (73%) and had multibacillary disease (70%). Brazil, Mexico, and the United States were the most frequent of the 14 countries of origin. Hansen's disease “reactions”, severe inflammatory complications, were identified among 75% of patients, and nerve damage was present at diagnosis in 36% of patients. The median length of time between symptom onset and diagnosis was long at 12 months (range, 1–96), but no single factor was associated with a delay in diagnosis. Conclusions. The diagnosis of HD was frequently delayed among patients referred to our US clinic. The high frequency of reactions and neuropathy at diagnosis suggests that further efforts at timely diagnosis and management of this often unrecognized disease is needed to prevent the long-term sequelae associated with irreversible nerve damage. PMID:27186586

  20. THERAPIST PERCEPTIONS OF INTIMATE PARTNER VIOLENCE: A REPLICATION OF HARWAY AND HANSEN2019;S STUDY AFTER MORE THAN A DECADE

    PubMed Central

    Dudley, Desreen Raphael; McCloskey, Kathy; Kustron, Debora A.

    2014-01-01

    More than a decade ago, Hansen, Harway, and Cervantes (1991) and Harway and Hansen (1993) conducted a research study examining mental health providers’ ability to accurately perceive violence within couples presenting for therapy and to intervene in a manner in which to reduce the risk of danger to couples. The results were alarming, with 40% of therapists sampled failing to perceive intimate partner violence (IPV) and virtually no therapists intervening to reduce the risk of lethality. Harway and colleagues questioned how well-trained and informed therapists were in assessing IPV. The present study replicates Harway and colleagues’ study with the expectation that, over a decade later, therapists are better prepared to accurately identify IPV issues and intervene effectively to reduce the risk of lethality. Reproducing the two main procedures used in the original study, 111 psychologists, clinical social workers, and marriage and family therapists were asked to respond to a survey. Results show that therapists have indeed improved their ability to identify IPV issues. Twenty percent of therapists predicted an increase in conflict, compared to 4% in the original sample. However, almost no therapists accurately predicted lethality in either study. Implications concerning IPV training for therapists are discussed. PMID:24729677

  1. Application of Hansen Solubility Parameters to predict drug-nail interactions, which can assist the design of nail medicines.

    PubMed

    Hossin, B; Rizi, K; Murdan, S

    2016-05-01

    We hypothesised that Hansen Solubility Parameters (HSPs) can be used to predict drug-nail affinities. Our aims were to: (i) determine the HSPs (δD, δP, δH) of the nail plate, the hoof membrane (a model for the nail plate), and of the drugs terbinafine HCl, amorolfine HCl, ciclopirox olamine and efinaconazole, by measuring their swelling/solubility in organic liquids, (ii) predict nail-drug interactions by comparing drug and nail HSPs, and (iii) evaluate the accuracy of these predictions using literature reports of experimentally-determined affinities of these drugs for keratin, the main constituent of the nail plate and hoof. Many solvents caused no change in the mass of nail plates, a few solvents deswelled the nail, while others swelled the nail to varying extents. Fingernail and toenail HSPs were almost the same, while hoof HSPs were similar, except for a slightly lower δP. High nail-terbinafine HCl, nail-amorolfine HCl and nail-ciclopirox olamine affinities, and low nail-efinaconazole affinities were then predicted, and found to accurately match experimental reports of these drugs' affinities to keratin. We therefore propose that drug and nail Hansen Solubility Parameters may be used to predict drug-nail interactions, and that these results can assist in the design of drugs for the treatment of nail diseases, such as onychomycosis and psoriasis. To our knowledge, this is the first report of the application of HSPs in ungual research.

  2. The Function of Scientific and Humanistic Ideologies in the Counseling Profession from the Perspective of Cognitive-Experiential Self-Theory: A Response to Hansen

    ERIC Educational Resources Information Center

    Suthakaran, V.

    2012-01-01

    In this response, the author addresses Hansen's (2012) call for the counseling profession to substitute science with humanities as its primary ideology. The author uses Epstein's (1994) cognitive-experiential self-theory to show that an equal appreciation for science and humanities is more congruent with a holistic humanistic vision for…

  3. The rare mantis shrimp Areosquilla indica (Hansen, 1976) (Crustacea, Stomatopoda) from the Great Barrier Reef: first Australian records of the genus and species.

    PubMed

    Ahyong, Shane T; Wassenberg, Theodore J

    2015-08-18

    The rare mantis shrimp genus Areosquilla is recorded from Australia for the first time based on nine specimens of A. indica (Hansen, 1926) collected from the Great Barrier Reef. Morphological variation beyond that observed in previous accounts is reported. The present record and other recent discoveries bring the Australian stomatopod fauna to 152 species and 68 genera.

  4. Development and Psychometric Evaluation of the Hansen Research Services Matrix Adaptive Test: A Measure of Nonverbal IQ.

    PubMed

    Hansen, John A

    2016-10-13

    Assessment of individuals on the autism spectrum often includes a measure of nonverbal IQ. One such measure is the Raven's Standard Progressive Matrices (RSPM). For large research studies with participants distributed nationally it is desirable for assessments to be available online. Because time is a premium, it is ideal that the measure produces accurate scores quickly. The Hansen Research Services Matrix Adaptive Test (HRS-MAT) addresses these needs and with similar psychometric properties of the RSPM. Scores based on the HRS-MAT correlated at r = .81 with those of the RSPM. In adult-child pairs, HRS-MAT scores correlated at approximately r = .50. Details from respondents in a national sample and psychometric properties including reliability and validity are discussed.

  5. Experimental consideration of the Hansen solubility parameters of as-produced multi-walled carbon nanotubes by inverse gas chromatography.

    PubMed

    Lim, Hyeong Jun; Lee, Kunsil; Cho, Young Shik; Kim, Yern Seung; Kim, Taehoon; Park, Chong Rae

    2014-09-07

    The Hansen solubility parameters (HSPs) of as-produced multi-walled carbon nanotubes (APMWCNTs) were determined by means of the inverse gas chromatography (IGC) technique. Due to non-homogeneous surfaces of the APMWCNTs arising from defects and impurities, it was necessary to establish adequate working conditions for determining the HSPs of the CNTs. We then obtained the HSPs of the APMWCNTs and compared these results with earlier reports as determined by using sedimentation and molecular dynamics simulation methods. It was found that the determination of the HSPs of the CNTs by IGC can give an enhanced determination range based on the adsorption thermodynamic parameters, compared to the HSPs determined using sedimentation methods. And the HSPs of the APMWCNTs, determined here, provided good guidelines for the selection of feasible solvents that can improve the dispersion of the APMWCNTs.

  6. Comparative study on dispersion and interfacial properties of single walled carbon nanotube/polymer composites using Hansen solubility parameters.

    PubMed

    Ma, Jing; Larsen, Raino Mikael

    2013-02-01

    Dispersion and interfacial strain transfer of single walled carbon nanotubes (SWNTs) are two major challenges for the utilization of SWNTs as reinforcements in polymer composites. Surface modifications could help change the dispersion and interfacial properties. In this study, nanocomposites were fabricated by solution blending 1 wt % SWNTs with various modification (nonmodified, nitric acid functionalized, and amine functionalized SWNTs) and three kinds of polymeric materials (polycarbonate, polyvinylidene fluoride, and epoxy). Chemical compatibilities between SWNTs and solvents or polymers are calculated by the Hansen solubility parameters (HSP) method. The dispersion of the SWNTs in solvents is evaluated by dynamic light scattering. The dispersion of SWNTs in polymers evaluated by a light optical microscope (LOM) generally agrees with the HSP prediction. The strain transfer from the matrix to SWNTs is mainly related to the dispersion, the bundle size, the residual thermal stresses on the sample, and, to lesser degree, the HSP.

  7. Partial solubility parameters of lactose, mannitol and saccharose using the modified extended Hansen method and evaporation light scattering detection.

    PubMed

    Peña, M A; Daali, Y; Barra, J; Bustamante, P

    2000-02-01

    The modified extended Hansen method was tested for the first time to determine partial solubility parameters of non-polymeric pharmaceutical excipients. The method was formerly tested with drug molecules, and is based upon a regression analysis of the logarithm of the mole fraction solubility of the solute against the partial solubility parameters of a series of solvents of different chemical classes. Two monosaccharides and one disaccharide (lactose monohydrate, saccharose and mannitol) were chosen. The solubility of these compounds was determined in a series of solvents ranging from nonpolar to polar and covering a wide range of the solubility parameter scale. Sugars do not absorb at the UV-vis region, and the saturated solutions were assayed with a recent chromatographic technique coupled to an evaporative light scattering detector. This technique was suitable to determine the concentration dissolved in most solvents. The modified extended Hansen method provided better results than the original approach. The best model was the four parameter equation, which includes the dispersion delta d, dipolar delta p, acidic delta a and basic delta b partial solubility parameters. The partial solubility parameters obtained, expressed as MPa1/2, were delta d = 17.6, delta p = 28.7, delta h = 19, delta a = 14.5, delta b = 12.4, delta T = 32.8 for lactose, delta d = 16.2, delta p = 24.5, delta h = 14.6, delta a = 8.7, delta b = 12.2, delta T = 32.8 for mannitol and delta d = 17.1, delta p = 18.5, delta h = 13, delta a = 11.3, delta b = 7.6, delta T = 28.4 for saccharose. The high total solubility parameters delta T obtained agree with the polar nature of the sugars. The dispersion parameters delta d are quite similar for the three sugars indicating that the polar delta p and hydrogen bonding parameters (delta h, delta a, delta b) are responsible for the variation in the total solubility parameters delta T obtained, as also found for drugs. The results suggest that the method

  8. [Power of music that moves mind and body--music therapy in the Hansen's disease sanatorium in Japan].

    PubMed

    Fukamizu, Yuu; En, Junichiro; Kano, Tatsuo; Arikawa, Isao

    2009-02-01

    Average age of residents living in National sanatorium Hoshizuka-Keiaien where people have past history of Hansen disease is around 80 years old at present, and many of them spend their whole days in watching TV or sleeping almost alone in their rooms. Therefore music therapy was introduced in order to improve their daily activities in our sanatorium. Singing, listening to music, playing the musical instruments, and dancing were performed, either in a group or individually. Reactivation of their brain function such as recollection, sense of unity and relaxation were expected. Improvement of cardiopulmonary function was also expected. Solidarity and relaxed state were observed by being with the other participants in the group therapy. For example, when using musical instruments, some participants with hesitation tried to use their instruments, and had good performance. They seemed to be satisfied and became confident with the musical instruments. Then their confidence and satisfaction activated the group. After the sessions, mutual conversation increased. These processes obtained a synergy effect, which means that a group affects of individuals at first and next alteration of individual behavior influences the group. We could observe a better effect in their motivation and activity in their daily life in the individual therapy. The music therapy was applied to the senior participants by the music therapist in this study. The participants could easily reinforce their mind and body through this therapy. Music therapy will be continued for the improvement of quality of life of residents in the sanatorium.

  9. [Prognostic value of Lauge-Hansen and Danis-Weber classification in nonoperative and operative tibia ankle fracture treatment].

    PubMed

    Tomiak, Michał; Czubak, Jarosław

    2007-01-01

    Tibia ankle fractures and traumatic injuries of the ankle-tibia joint area are one of the most intractable problems in orthopedic and traumatic surgery. Because of the displacement of these fractures they require precise opening of the joint surface area to undertake the early repositioning in order to gain eficient walk. The objective of this paper was to evaluate and compare the final results of nonoperative and operative treament methods, specificlly the two most common prognosis values of tibia ankle fracture clasifications by Danis-Weber and Lauge-Hansen. This is the prognositic marking in the range of functional and radiological results dependant upon the method beeing applied. The repetetiveness and accordance of these two classifications has been evaluated as well. This research was conducted on the retrospective evalutaion based on the X-rays of 61 patients (28 women and 33 men) between the ages of 20-76 making the average age 49.5. The definition of accordance and repetitivenes was conducted by three doctors, who evaluated the x-rays from the standard fornt, back, and side projection of relaxed joint ankle.

  10. Achieving concentrated graphene dispersions in water/acetone mixtures by the strategy of tailoring Hansen solubility parameters

    NASA Astrophysics Data System (ADS)

    Yi, Min; Shen, Zhigang; Zhang, Xiaojing; Ma, Shulin

    2013-01-01

    Although exfoliating graphite to give graphene paves a new way for graphene preparation, a general strategy of low-boiling-point solvents and high graphene concentration is still highly required. In this study, using the strategy of tailoring Hansen solubility parameters (HSP), a method based on exfoliation of graphite in water/acetone mixtures is demonstrated to achieve concentrated graphene dispersions. It is found that in the scope of blending two mediocre solvents, tailoring the HSP of water/acetone mixtures to approach the HSP of graphene could yield graphene dispersions at a high concentration of up to 0.21 mg ml-1. The experimentally determined optimum composition of the mixtures occurs at an acetone mass fraction of ˜75%. The trend of concentration varying with mixture compositions could be well predicated by the model, which relates the concentration to the mixing enthalpy within the scope of HSP theory. The resultant dispersion is highly stabilized. Atomic force microscopic statistical analysis shows that up to ˜50% of the prepared nanosheets are less than 1 nm thick after 4 h sonication and 114g centrifugation. Analyses based on diverse characterizations indicate the graphene sheets to be largely free of basal plane defects and oxidation. The filtered films are also investigated in terms of their electrical and optical properties to show reasonable conductivity and transparency. The strategy of tailoring HSP, which can be easily extended to various solvent systems, and water/acetone mixtures here, extends the scope for large-scale production of graphene in low-boiling-point solutions.

  11. Insights into organogelation and its kinetics from Hansen solubility parameters. Toward a priori predictions of molecular gelation.

    PubMed

    Diehn, Kevin K; Oh, Hyuntaek; Hashemipour, Reza; Weiss, Richard G; Raghavan, Srinivasa R

    2014-04-21

    Many small molecules can self-assemble by non-covalent interactions into fibrous networks and thereby induce gelation of organic liquids. However, no capability currently exists to predict whether a molecule in a given solvent will form a gel, a low-viscosity solution (sol), or an insoluble precipitate. Gelation has been recognized as a phenomenon that reflects a balance between solubility and insolubility; however, the distinction between these regimes has not been quantified in a systematic fashion. In this work, we focus on a well-known gelator, 1,3:2,4-dibenzylidene sorbitol (DBS), and study its self-assembly in various solvents. From these data, we build a framework for DBS gelation based on Hansen solubility parameters (HSPs). While the HSPs for DBS are not known a priori, the HSPs are available for each solvent and they quantify the solvent's ability to interact via dispersion, dipole-dipole, and hydrogen bonding interactions. Using the three HSPs, we construct three-dimensional plots showing regions of solubility (S), slow gelation (SG), instant gelation (IG), and insolubility (I) for DBS in the different solvents at a given temperature and concentration. Our principal finding is that the above regions radiate out as concentric shells: i.e., a central solubility (S) sphere, followed in order by spheres corresponding to SG, IG, and I regions. The distance (R0) from the origin of the central sphere quantifies the incompatibility between DBS and a solvent-the larger this distance, the more incompatible the pair. The elastic modulus of the final gel increases with R0, while the time required for a super-saturated sol to form a gel decreases with R0. Importantly, if R0 is too small, the gels are weak, but if R0 is too large, insolubility occurs-thus, strong gels fall within an optimal window of incompatibility between the gelator and the solvent. Our approach can be used to design organogels of desired strength and gelation time by judicious choice of a

  12. [Hansen disease in Mercosur].

    PubMed

    Vazquez, F A; Varela, N N; Antola, M C; Wand-Del-Rey, M L; Leguizamón, O R

    1996-01-01

    In the context of the important changes of a political economic, social and health order upon which the Argentina, Brazil, Paraguay and Uruguay have now embarked in the framework of the commitment undertaken to create instruments for the Common Market of the South America (MERCOSUR), the importance of leprosy for public health in this new region is analysed. In this connection a description is given of the background and reasons which led to the creation of the MERCOSUR Committee for technical cooperation on leprosy, composed of the heads of the national leprosy control programmes of the countries in question, for the purpose of implementing the Protocol of Intention signed by the representatives of the Ministers of member countries, with the object of establishing policies of technical cooperation in activities to control this disease, with a view to attaining the goal proposed by WHO of eliminating leprosy as a public health problem by the year 2000. Using the data contributed by the different programmes, the epidemiological situation existing in this region in December 1995 is outlined, with analysis of certain epidemiological, demographic and operational variables, showing that MERCOSUR has a prevalence of 6.03 per 10,000 population, one of the highest rates in comparison with other WHO regions; a high percentage of cases lost to view (abandons); and a low rate of coverage with multidrug therapy. In this region a total of 33,654 new cases were detected during 1995, of which more than 50% were multibacillary forms, while nearly 10% of them were youngsters of less of 15 years of age. The action carried out jointly among the four countries, the successes achieved and the results to be achieved in the short term are also described.

  13. Leprosy (Hansen's Disease)

    MedlinePlus

    ... of areas where drug resistance is occurring, and molecular epidemiology. To learn about risk factors for Leprosy ... research in leprosy today include genetic probes for molecular epidemiology, and new immunologic tests for early detection ...

  14. Impact of biological control agents on fusaric acid secreted from Fusarium oxysporum f. sp. gladioli (Massey) Snyder and Hansen in Gladiolus grandiflorus corms.

    PubMed

    Nosir, Walid; McDonald, Jim; Woodward, Steve

    2011-01-01

    Fusaric acid (FA) (5-n-butylpuridine 2-carboxyl acid), a highly toxic secondary metabolite produced by Fusarium oxysporum strains, plays a significant role in disease development. The abilities of three F. oxysporum f. sp. gladioli (Massey) Snyder and Hansen isolates (G010; 649-91; and 160-57) to produce FA in infected Gladiolus corm tissues was evaluated in vitro in relation to the presence of two biological control agents, Trichoderma harzianum T22, and Aneurinobacillus migulanus. Pathogenicity tests were used to differentiate between the abilities of the F. oxysporum strains to secrete FA. FA was identified using LC/MS and quantified using HPLC. Isolate G010 was significantly more virulent (P < 0.01) on Gladiolus grandiflorus corms; it secretes 1.8 μM FA/g fresh weight corm into inoculated Gladiolus. Moreover, G010 was the only isolate that produced FA among the three examined isolates. There was a correlation between the corm lesion area and the FA secretion ability of F. oxysporum f. sp. gladioli (P < 0.001; r (2) = 0.96). No FA was detected in PDA cultures of F.oxysporum f. sp. gladioli isolates. The presence of T. harzianum T22 appeared to prevent FA secretion into the corms. In the presence of A. migulanus, however, the amount of FA secreted into the corm tissues increased. These results support the use of T. harzianum as an effective biological control agent against F. oxysporum f. sp. gladioli.

  15. [Nursing assistant care at the national Hansen's disease sanatorium in Japan: focusing on "autonomy of the life field" for physically and socially challenged residents].

    PubMed

    Honda, Yasuo

    2008-09-01

    Previous studies on sociology and cultural anthropology insist that it is impossible to provide sufficient autonomy to clients who enroll for group care at care facilities. The purpose of this study is to analyze the nature of nursing assistant care at the national Hansen's disease sanatorium in Japan. Semi-structured interviews were conducted with 39 nursing assistants and 6 head nurses who cared for physically and socially challenged residents at this sanatorium. The investigation revealed that as a result of facing huge conflicts in the caring process, the nursing assistants had learned to appreciate the inherent life and history of residents. Thus, the nursing assistants and residents were bound together by mutual trust with a view to maximize the "autonomy of the life field." Conflict had not stunted the self-affirmation of nursing assistants; moreover, mutual trust had reorganized the "relevant system pertaining to care" for nursing assistants, which consisted of "the unification of care" and "the equality of care." It is suggested that group care at this sanatorium promotes the "autonomy of the life field" by valuing conflicts between nursing assistants and residents.

  16. Late Holocene earthquake history of the Brigham City segment of the Wasatch fault zone at the Hansen Canyon, Kotter Canyon, and Pearsons Canyon trench sites, Box Elder County, Utah

    USGS Publications Warehouse

    DuRoss, Christopher B.; Personius, Stephen F.; Crone, Anthony J.; McDonald, Greg N.; Briggs, Richard W.

    2012-01-01

    Of the five central segments of the Wasatch fault zone (WFZ) having evidence of recurrent Holocene surface-faulting earthquakes, the Brigham City segment (BCS) has the longest elapsed time since its most recent surface-faulting event (~2.1 kyr) compared to its mean recurrence time between events (~1.3 kyr). Thus, the BCS has the highest time-dependent earthquake probability of the central WFZ. We excavated trenches at three sites––the Kotter Canyon and Hansen Canyon sites on the north-central BCS and Pearsons Canyon site on the southern BCS––to determine whether a surface-faulting earthquake younger than 2.1 ka occurred on the BCS. Paleoseismic data for Hansen Canyon and Kotter Canyon confirm that the youngest earthquake on the north-central BCS occurred before 2 ka, consistent with previous north-central BCS investigations at Bowden Canyon and Box Elder Canyon. At Hansen Canyon, the most recent earthquake is constrained to 2.1–4.2 ka and had 0.6–2.5 m of vertical displacement. At Kotter Canyon, we found evidence for two events at 2.5 ± 0.3 ka and 3.5 ± 0.3 ka, with an average displacement per event of 1.9–2.3 m. Paleoseismic data from Pearsons Canyon, on the previously unstudied southern BCS, indicate that a post-2 ka earthquake ruptured this part of the segment. The Pearsons Canyon earthquake occurred at 1.2 ± 0.04 ka and had 0.1–0.8 m of vertical displacement, consistent with our observation of continuous, youthful scarps on the southern 9 km of the BCS having 1–2 m of late Holocene(?) surface offset. The 1.2-ka earthquake on the southern BCS likely represents rupture across the Weber–Brigham City segment boundary from the penultimate Weber-segment earthquake at about 1.1 ka. The Pearsons Canyon data result in a revised length of the BCS that has not ruptured since 2 ka (with time-dependent probability implications), and provide compelling evidence of at least one segment-boundary failure and multi-segment rupture on the central WFZ. Our

  17. The modified extended Hansen method to determine partial solubility parameters of drugs containing a single hydrogen bonding group and their sodium derivatives: benzoic acid/Na and ibuprofen/Na.

    PubMed

    Bustamante, P; Pena, M A; Barra, J

    2000-01-20

    Sodium salts are often used in drug formulation but their partial solubility parameters are not available. Sodium alters the physical properties of the drug and the knowledge of these parameters would help to predict adhesion properties that cannot be estimated using the solubility parameters of the parent acid. This work tests the applicability of the modified extended Hansen method to determine partial solubility parameters of sodium salts of acidic drugs containing a single hydrogen bonding group (ibuprofen, sodium ibuprofen, benzoic acid and sodium benzoate). The method uses a regression analysis of the logarithm of the experimental mole fraction solubility of the drug against the partial solubility parameters of the solvents, using models with three and four parameters. The solubility of the drugs was determined in a set of solvents representative of several chemical classes, ranging from low to high solubility parameter values. The best results were obtained with the four parameter model for the acidic drugs and with the three parameter model for the sodium derivatives. The four parameter model includes both a Lewis-acid and a Lewis-base term. Since the Lewis acid properties of the sodium derivatives are blocked by sodium, the three parameter model is recommended for these kind of compounds. Comparison of the parameters obtained shows that sodium greatly changes the polar parameters whereas the dispersion parameter is not much affected. Consequently the total solubility parameters of the salts are larger than for the parent acids in good agreement with the larger hydrophilicity expected from the introduction of sodium. The results indicate that the modified extended Hansen method can be applied to determine the partial solubility parameters of acidic drugs and their sodium salts.

  18. Comparison of the cohesion-adhesion balance approach to colloidal probe atomic force microscopy and the measurement of Hansen partial solubility parameters by inverse gas chromatography for the prediction of dry powder inhalation performance.

    PubMed

    Jones, Matthew D; Buckton, Graham

    2016-07-25

    The abilities of the cohesive-adhesive balance approach to atomic force microscopy (AFM) and the measurement of Hansen partial solubility parameters by inverse gas chromatography (IGC) to predict the performance of carrier-based dry powder inhaler (DPI) formulations were compared. Five model drugs (beclometasone dipropionate, budesonide, salbutamol sulphate, terbutaline sulphate and triamcinolone acetonide) and three model carriers (erythritol, α-lactose monohydrate and d-mannitol) were chosen, giving fifteen drug-carrier combinations. Comparison of the AFM and IGC interparticulate adhesion data suggested that they did not produce equivalent results. Comparison of the AFM data with the in vitro fine particle delivery of appropriate DPI formulations normalised to account for particle size differences revealed a previously observed pattern for the AFM measurements, with a slightly cohesive AFM CAB ratio being associated with the highest fine particle fraction. However, no consistent relationship between formulation performance and the IGC data was observed. The results as a whole highlight the complexity of the many interacting variables that can affect the behaviour of DPIs and suggest that the prediction of their performance from a single measurement is unlikely to be successful in every case.

  19. Hansen Solubility Parameters for Octahedral Oligomeric Silsesquioxanes

    DTIC Science & Technology

    2012-08-28

    Sci. 2005, 97, 939-945. 40. Cataldo, F. On the Solubility Parameter of C60 and Higher Fullerenes. Fuller. Nanotub . Carbon Nanostruct. 2009, 17, 79-84...First, the cohesive energy for the naphthyl group is calculated by scaling the values for phenyl groups 17 by the number of carbons (10 for...mass of the peripheral carbon atom nearest to each silicon atom actually falls within the cube, so each corner of the cube contains a region that is

  20. Unilateral Demodicidosis of Face Mimicking Hansens Disease

    PubMed Central

    Vashisht, Deepak; Singh, Jatinder; Baveja, Sukriti; Tiwari, Rohit; Bhatnagar, Anuj

    2016-01-01

    Demodicosis is a common parasitic infection of the hair follicles and the pilosebaceous unit by the Demodex mites viz. Demodex folliculorum and Demodex brevis. Infection by this parasite is common among immunocompromised and elderly. We report a case of facial Demodicosis which presented like atypical rosacea with a gradually progressing swelling and redness on right side of face which was initially diagnosed as a case of Hansen’s disease. Skin biopsy revealed follicular dilatation with presence of Demodex mite along with intense perifollicular lymphomononuclear infiltrate. Patient was treated with oral tab Ivermectin 12 mg stat along with topical gel metronidazole twice daily to which he responded favourably. PMID:28326184

  1. Use of Hansen Solubility Parameters in Fuel Treatment Processes

    DTIC Science & Technology

    2014-03-17

    reduce cost of RP by producing these fuels from less expensive feed streams. • Reduced coking • Isp improvement • Improved thermal stability Performance...Thiophenes Aromatics Present in RP-1 Concentration varies Detrimental to Thermal Stability! Catalysts for Coking Reactions Detrimental to Performance

  2. [Obstacles to compliance with treatment for Hansen's disease

    PubMed

    Bakirtzief

    1996-10-01

    This research project aimed at identifying some of the factors related to leprosy patient compliance with the multidrug treatment regimen. The methodological framework of the Social Representations Theory was used. Two groups of patients were interviewed: compliant and non-compliant with treatment and those coming from two different health services. We observed a common understanding about treatment in the various interviews, expressed as a metaphor to describe the treatment experience: the figure of a battle in which the bacillus is portrayed as a threat, the patient as a victim, the medication as a weapon and the health professional as a hero or saint. Still, the medication is represented as being both good and bad for the patient's well-being. Finally, quality of the physician-patient relationship appeared to be the main difference between the two groups of subjects studied.

  3. [Researching documents on the history of hansen's disease in Brazil].

    PubMed

    Santos, Vicente Saul Moreira dos

    2003-01-01

    This article corresponds to part of the results of a research on leprosy-related sources developed in several institutions in the city of Rio de Janeiro. At Real Gabinete Português de Leitura, Arquivo Nacional and Biblioteca Nacional, banks, indexes, official documents and photos on the administration of leprosaria and articles on the treatment of the disease have been investigated. At Centro de Pesquisa e Documentação de História Contemporânea do Brazil (CPDOC-FGV), several files have been researched, mainly those with information on the health policies of the first Vargas administration (1930-1945). This research is part of the International Leprosy Association Global Project on the History of Leprosy. Its results can be accessed at the site http://www.leprosyhistory.org

  4. Hansen Solubility Parameters for Fluoroalkyl Silicates (Briefing Charts)

    DTIC Science & Technology

    2012-10-17

    REPORT DOCUMENTATION PAGE Form Approved OMB No. 0704-0188 Public reporting burden for this collection of information is estimated to average 1 ...currently valid OMB control number. PLEASE DO NOT RETURN YOUR FORM TO THE ABOVE ADDRESS. 1 . REPORT DATE (DD-MM-YYYY) August 2012 2. REPORT TYPE...polypropylene base material without sacrificing the ease of flow that facilitates ease of manufacturing. The high thermal stability and ~ 1 nm size of

  5. Response to Hansen: Economic Pressures, Not Science, Undermine Humanistic Counseling

    ERIC Educational Resources Information Center

    Leibert, Todd W.

    2012-01-01

    The author contends that it was economic interests, not reductionist scientific methods, that displaced the humanities as the basis for counseling profession. Attacking scientific methods may inadvertently marginalize humanistic counselors. Instead, science in counseling should be viewed more broadly and thereby support the humanities as a basis…

  6. Application of the Hansen solubility Parameters theory to carbon nanotubes.

    PubMed

    Detriche, S; Zorzini, G; Colomer, J F; Fonseca, A; Nagy, J B

    2008-11-01

    Carbon nanotubes (CNT) are very promising nano-objects due to their exceptional properties. However, their tendency to form bundles as well as their insolubility in common solvents makes them difficult to handle. The main way to solve the problem is chemical or physical CNTs functionalisations, with all the problems inherent to the methods. In this contribution, we present a new approach that allows predicting the solubility of carbon nanotubes in many solvents but also predicting the most appropriate solvents to use for given samples of CNTs. Solubilisation and dispersion being directly connected, the present approach of solubilisation proves also to be efficient in dispersing the CNTs bundles. This contribution is a first step toward the control of carbon nanotube's dispersion in polymers and their homogenous functionalisation. Moreover, we also report here a new method, based on solvents, to separate carbon nanotubes by size, the use of mixture of non-solvents in order to obtain good solvents and the use of mixture of good solvents to obtain higher solubility. The use of mixture of good solvents allowed us to obtain high solubility, up to three times higher then that reported in literature. We have also measured and analysed the solubility of some functionalised carbon nanotubes.

  7. Policing and Psychopathy: The Case of Robert Phillip Hansen

    DTIC Science & Technology

    2007-11-02

    The psychological construct of psychopathy has received considerable attention in the extant research. This is especially the case with respect to...explaining the behavioral and personality dynamics of various offenders and criminal groups. Recently, the efficacy of the psychopathy concept has been...of the psychopathy construct for explaining the extremely violent behavior and personality structure of Robert P. Hanssen. Hanssen was a former FBI

  8. Orthographic Analogies and Phonological Priming: A Comment on Bowey, Vaughan, and Hansen (1998).

    ERIC Educational Resources Information Center

    Goswami, Usha

    1999-01-01

    Highlights two problems with examined study: (1) investigation is based on a misunderstanding of Goswami and Bryant's claims about the role of rhyme and analogy in beginning reading; and (2) methodological weaknesses, in particular unintended intra-list priming effects, limit the conclusions that can be drawn from the booklet analogy task. (Author)

  9. [Hansen's disease, exclusion and prejudice: life histories of women at Santa Catarina State].

    PubMed

    Martins, Patrícia Vieira; Caponi, Sandra

    2010-06-01

    This article describes historical notes about leprosy, from the discovery of the bacillus to the treatment done today. In this text we try to analyze the perception of some women, former leprosy patients, residents of Santa Teresa Hospital, located in the city of São Pedro de Alcântara, Santa Catarina State, on the stigma, prejudice and exclusion they suffered and still suffer today. We used the oral history of three women for research purposes and we found as a result of this "excluding" treatment over the years, that it built some kind of rejection about the disease. The search and affirmation of the identity of the stigmatized subject has become a constant. The model of social acceptance and the fact of being recognized as different and not discriminated is the main issue.

  10. A taxonomic catalogue of the Dyspnoi Hansen and Sørensen, 1904 (Arachnida: Opiliones).

    PubMed

    Schönhofer, Axel L

    2013-01-01

    An update of the systematics and determination key of the Opiliones suborder Dyspnoi is provided. The included catalogue represents the first comprehensive species and synonymy listing since Roewer (1923). It summarises all taxonomic changes to date and attempts to be a sound basis against the exponential growing number of online errors, for which examples are given. Species taxonomy features most obvious changes within the Nemastomatidae. The number of species in the collective genus Nemastoma is reduced from 96 (Hallan 2005) to its sensu stricto definition of 7, and the excluded names are transferred to other genera or considered as nomina dubia, predominantly in Paranemastoma. The systematics of the superfamily Ischyropsalidoidea is discussed and family-level diagnoses are renewed to support taxonomical changes: The morphological heterogeneity in the Sabaconidae is resolved by reverting the family to its original monogeneric state. Taracus and Hesperonemastoma are separated as Taracidae fam. n., and Crosbycus is tentatively transferred to this assembly. The remaining genera of Ceratolasmatidae, Acuclavella and Ceratolasma, are included as subfamily Ceratolasmatinae in the Ischyropsalididae and Ischyropsalis is assigned subfamily status, respectively. Other nomenclatural acts are restricted to species-group level with the following synonymies established: Sabacon jonesi Goodnight & Goodnight, 1942 syn. n. (=cavicolens (Packard, 1884)), Dicranolasma diomedeum Kulczyński, 1907 syn. n. (=hirtum Loman, 1894), Mitostoma (Mitostoma) sketi Hadži, 1973a syn. n. (=chrysomelas (Hermann, 1804)), Mitostoma asturicum Roewer, 1951 syn. n. (=pyrenaeum (Simon, 1879a)), Nemastoma formosum Roewer, 1951 syn. n. (=Nemastomella bacillifera bacillifera (Simon, 1879a)), Nemastoma reimoseri Roewer, 1951 syn. n. (=Paranemastoma bicuspidatum (C.L. Koch, 1835)), Nemastoma tunetanum Roewer, 1951 syn. n. (=Paranemastoma bureschi (Roewer, 1926)), Phalangium flavimanum C.L. Koch, 1835 syn. n. (=Paranemastoma quadripunctatum (Perty, 1833)), Crosbycus graecus Giltay, 1932 syn. n. (=Paranemastoma simplex (Giltay, 1932)), Nemastoma bimaculosum Roewer 1951 syn. n. (=Paranemastoma titaniacum (Roewer, 1914)), Trogulocratus tunetanus Roewer, 1950 syn. n. (=Calathocratus africanus (Lucas, 1849)), Trogulus albicerus Sø-rensen, 1873 syn. n. (=Calathocratus sinuosus (Sørensen, 1873)), Metopoctea exarata Simon, 1879a syn. n. (=Trogulus aquaticus Simon, 1879a), Trogulus galasensis Avram, 1971 syn. n. (=Trogulus nepaeformis (Scopoli, 1763)) and Trogulus roeweri Avram, 1971 syn. n. (=Trogulus nepaeformis (Scopoli, 1763)). Paranemastoma werneri (Kulczyński, 1903) is elevated from subspecies to species. Ischyropsalis luteipes Simon, 1872b is proposed as nomen protectum, taking precedence over Lhermia spinipes Lucas 1866 nomen oblitum. The same accounts for Anelasmocephalus cambridgei (Westwood, 1874) nomen protectum, taking precedence over Trogulus violaceus Gervais, 1844 nomen oblitum, Trogulus closanicus Avram, 1971 nomen protectum over Trogulus asperatus C.L. Koch, 1839a nomen oblitum, as well as Trogu-lus martensi Chemini, 1983 nomen protectum over Trogulus tuberculatus Canestrini, 1874 nomen oblitum. New combinations, all from Nemastoma, are Histricostoma anatolicum (Roewer, 1962), Mediostoma globuliferum (L. Koch, 1867), Nemastomella hankiewiczii (Kulczyński, 1909), Nemastomella maarebense (Simon, 1913), Nemastomella monchiquense (Kraus, 1961) and Paranemastoma simplex (Giltay, 1932); from Mitostoma: Nemastomella armatissima (Roewer, 1962). Revived combinations are Nemastomella cristinae (Rambla, 1969) (from Nemastoma) and Nemastomella sexmucronatum (Simon, 1911) (from Nemastoma). The following Nemastoma are transferred to Paranemastoma but suggested as nomina dubia: aeginum (Roewer, 1951), amuelleri (Roewer, 1951), bolei (Hadži, 1973a), caporiaccoi (Roewer, 1951), carneluttii (Hadži, 1973a), ferkeri (Roewer, 1951), gigas montenegrinum (Nosek, 1904), gostivarense (Hadži, 1973a), ikarium (Roewer, 1951), quadripunctatum ios (Roewer, 1917), kaestneri (Roe

  11. Health evaluation of Columbian white-tailed deer on Julia Butler Hansen Refuge for the Columbian white-tailed deer

    USGS Publications Warehouse

    Creekmore, Terry E.; Glaser, Linda C.

    1999-01-01

    The objectives of this study were to: (1) gather baseline physiologic data on a subset of the population, (2) evaluate the data to determine the health of the animals sampled, (3) if possible, identify causes of poor health and, ( 4) provide refuge personnel with information that will aid them in managing the population.

  12. Vida de leprosa: the testimony of a woman living with Hansen's disease in the Peruvian Amazon, 1947.

    PubMed

    Cueto, Marcos; de la Puente, José Carlos

    2003-01-01

    This is the narrative of a patient made before, during and after being incarcerated in an agricultural colony in the Peruvian Amazon. In a vivid style, it narrates the decay of the body, the stigma and the compulsive segregation, as well as the hope for a better life. It is the perspective of a patient, something that is difficult to find when researching the history of health. The original publication was possible thanks to the German physician Maxime H. Kuczynski-Godard and thanks to the Institute of Social Medicine of the University of San Marcos that was directed by the professor of hygiene Carlos Enrique Paz-Soldán. We have used this publication for this transcription. Kuczynski-Godard was a German medical doctor that arrived in Peru in the mid 1930s and organized valuable activities in the Peruvian jungle as a part of an effort, which eventually failed, of the Peruvian State to colonize, or really to "civilize" the Amazon.

  13. 75 FR 49516 - Lewis and Clark National Wildlife Refuge and the Julia Butler Hansen Refuge for the Columbian...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-08-13

    ... observation and photography, ] and environmental education and interpretation. We will review and update the.... Existing public uses, including hunting, fishing, and wildlife observation and photography, would continue... wildlife observation and photography, study potential wilderness lands, and work with partners to...

  14. 76 FR 77247 - Lewis and Clark National Wildlife Refuge and Julia Butler Hansen Refuge for the Columbian White...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-12-12

    ... photography would continue at current levels. Lewis and Clark Refuge Alternative 2 Under Alternative 2 (the... opportunities for wildlife observation and photography, evaluate the Refuge's Wilderness Study Area (WSA) for a... (hunting, fishing, wildlife observation and photography, and environmental education and...

  15. Evaluation and Monitoring of Mycobacterium leprae Transmission in Household Contacts of Patients with Hansen's Disease in Colombia

    PubMed Central

    Romero-Montoya, Marcela; Beltran-Alzate, Juan Camilo

    2017-01-01

    Leprosy in Colombia is in a stage of post elimination—since 1997, prevalence of the disease is less than 1/10000. However, the incidence of leprosy has remained stable, with 400–500 new cases reported annually, with MB leprosy representing 70% of these case and 10% having grade 2 disability. Thus, leprosy transmission is still occurring, and household contacts (HHCs) of leprosy patients are a population at high risk of contracting and suffering from the effects of the disease during their lifetime. We performed a cross-sectional study with the aim of evaluating leprosy transmission within Family Groups (FGs) from four Colombian departments: Antioquia, Bolívar, Córdoba and Sucre. This study included 159 FGs formed by 543 HHCs; 45 FGs were monitored twice, first in 2003 and again in 2012. Migration, forced displacement by violence, loss of contact with the health center and the lack of an agreement to participate in the second monitoring were the primary reasons not all FGs were tested a second time. In each HHC, a clinical examination was performed, epidemiological data recorded, the bacillary index determined, DNA was isolated for M. leprae detection by nested PCR and IgM anti-phenolic glycolipid-I (PGL-I) titers were inspected. Further, DNA from M. leprae isolates were typed and compared among FGs. Twenty-two (4.1%) of the 543 HHCs had IgM anti-PGL-I positive antibody titers, indicating infection. Nasal swabs (NS) taken from 113 HHCs were tested by RLEP PCR; 18 (16%) were positive for M. leprae DNA and two new leprosy cases were detected among the HHCs. Of the confirmed HHCs with leprosy, it was possible to genotype the bacterial strains from both the index case and their HHCs. We found that the genotype of these two strains agreed at 9 markers, showing the individuals to be infected by the same strain, indicating familiar transmission. HHCs of leprosy patients not only are a high-risk population for M. leprae infection, they can act as M. leprae carriers and therefore serve as sources for transmission and infection. Our results confirm familiar leprosy transmission and suggest that follow-up of HHCs is a good strategy for early diagnosis of leprosy and to monitor its transmission. PMID:28114411

  16. A resolution relative to the death of Clifford Peter Hansen, former United States Senator for the State of Wyoming.

    THOMAS, 111th Congress

    Sen. Enzi, Michael B. [R-WY

    2009-10-21

    10/21/2009 Submitted in the Senate, considered, and agreed to without amendment and with a preamble by Unanimous Consent. (consideration: CR S10648-10650; text as passed Senate: CR S10650; text of measure as introduced: CR S10644) (All Actions) Tracker: This bill has the status Passed SenateHere are the steps for Status of Legislation:

  17. 78 FR 77664 - Defense Policy Board (DPB); Notice of Federal Advisory Committee Meeting

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-12-24

    ..., Washington, DC 20301- 2000. FOR FURTHER INFORMATION CONTACT: Ms. Ann Hansen, 2000 Defense Pentagon... classified material. Committee's Designated Federal Officer or Point of Contact: Ann Hansen,...

  18. [The frequency of the appearance of perforating foot ulcers in patients with Hansen's disease as a function of treatment with disulone alone or with polychemotherapy].

    PubMed

    Mane, I; Grauwin, M Y; Cartel, J L

    1995-01-01

    Between 1986 and 1989, in 5 departments of Senegal, 436 new cases of leprosy were detected, of whom 225 were put under dapsone monotherapy and 211 under multidrug therapy (MDT). Of them, 190 could be followed-up during 2 years by means of annual bacteriological and clinical examination, including neurological assessment. In 2 years, the onset of 10 (5.3%) chronic plantar ulcers (CPU) was observed: 4 (4%) among the 99 patients under dapsone monotherapy and 6 (6.6%) among the 91 under MDT (no significant difference). Of the 10 CPU, 3 (2%) appeared among the 149 patients without any disability at detection while 7 (17%) were observed among the 41 others who presented a grade 1 disability at detection (p < 0.01). Of the 6 CPU appeared in the patients under MDT, 5 (22%) were observed among the 23 who presented a grade 1 disability at detection and 1 (1.5%) among the 68 who did not (p < 0.01). This difference was not noted in the patients under dapsone monotherapy. Our results need to be confirmed by other studies including a higher number of patients followed-up during a longer period of time. Nevertheless, they suggest that MDT could prevent the onset of CPU, but only in patients without any disability at detection. Therefore, they reemphasize the importance of early detection of the disease in leprosy control programmes.

  19. Prime Contractors with Awards Over $25,000 by Name, Location, and Contract Number. Part 4. (Executive Roll Manufacturing-Hansen Engineering & Mchy Co.)

    DTIC Science & Technology

    1989-01-01

    0 co 0 000 00 00 OD0Dco00 co 00 0 ’SI~L 2 A ClOI 010 IDMC 10 L 1o0101 LAL ’o N ODIL 000 LAL 0. N NlA0 -Z C ~~~~~~~o .r4 11 010() 44 4Ln LL U0 0 mI~ 0...2.40 -W a)0 u- w00 U)U) 0 0 ) 00 u .Hr 0 r 0 0) C -/) 4. 0)m .4 m 00 m01 10. L)- zz ea o z 44 .n- * * ll - M’ 4 cco MW WW0w. 0 :, 0000: 0 m :, 00 0U 0...n It) E- m o r * ,w 0C)N- rm0 D1 Imt lL In mlco 0) fll > 0 0 I> 0) f tot- to o - o r.I w m IoWL r 0 Dfl100)riwC>fl g’n, N 00) ~ ~ IT )- 0 0 M0 0) t

  20. Descriptions of two new species of Rhizorhina Hansen, 1892 (Copepoda: Siphonostomatoida: Nicothoidae) parasitic on tanaidacean crustaceans, with a note on their phylogenetic position.

    PubMed

    Kakui, Keiichi

    2016-01-01

    Two new species of nicothoid copepod are described. Rhizorhina ohtsukai n. sp. found on a leptocheliid (Leptochelia sp.) collected at depths of 151-136 m in the North Pacific Ocean is most similar to Rhizorhina aesthetes Boxshall & Harrison, 1988 but can be distinguished by the possession of a narrower body with a rounded anterior end, and in the position of the gonopores. Rhizorhina soyoae n. sp. found on an apseudid (Fageapseudes sp.) collected at depths of 1,595-1,557 m in East China Sea most closely resembles Rhizorhina tanaidaceae Gotto, 1984 but differs in having a narrower body with a rounded anterior end. Partial nucleotide sequences of the cytochrome c oxidase subunit I (COI) gene were obtained from the two copepods in order to enable future barcoding. A phylogenetic reconstruction based on the 18S rRNA gene placed the copepods within the Siphonostomatoida Burmeister, 1835, with the nicothoid Choniosphaera maenadis (Bloch & Gallien, 1933), and separate from the Rhizorhina spp. clade, suggesting that the family Nicothoidae Dana, 1849 is not monophyletic. This is the third report of copepods parasitic on tanaidacean crustaceans.

  1. A new genus of Stenetriidae Hansen, 1905 (Asellota: Isopoda: Crustacea) from the Great Barrier Reef, Australia and the southwestern Pacific.

    PubMed

    Bruce, Niel L; Cumming, R L

    2015-04-02

    Onychatrium gen. nov. is described, with five included species: Onychatrium forceps sp. nov., the type species and Onychatrium torosus sp. nov., both from the Great Barrier Reef; Onychatrium entale (Nordenstam, 1946) comb. nov., from Tapateuen (= Tabiteue Island), Gilbert Islands; Onychatrium thomasi (Bolstad & Kensley, 1999) comb. nov., from Madang, Papua New Guinea; and Onychatrium echiurum (Nobili, 1906) comb. nov., and species inquirenda from the Tumaotu Islands, Eastern French Polynesia. The primary distinguishing characters for Onychatrium gen. nov. are a trapezoid pseudosrostrum, the male pereopod 1 with elongate dactylus (4.7-7.3 as long as proximal width), propodus with strongly produced and acute lobe, carpus with a distally acute, flat, ventrally directed process (except O. torosus sp. nov., which has a short and truncate process) and the merus with a distally directed inferodistal lobe. The genus is known only from the southern Pacific, from the Tuamotus (eastern French Polynesia) to the Great Barrier Reef and northern Papua New Guinea.

  2. Proceedings of the Conference of the International Group for the Psychology of Mathematics Education (31st, Seoul, Korea, July 8-13, 2007). Volume 3

    ERIC Educational Resources Information Center

    Woo, Jeong-Ho, Ed.; Lew, Hee-Chan, Ed.; Park, Kyo-Sik Park, Ed.; Seo, Dong-Yeop, Ed.

    2007-01-01

    This third volume of the 31st annual proceedings of the International Group for the Psychology of Mathematics Education conference presents research reports for author surnames beginning Han- through Miy-. Reports include: (1) Elementary Education Students' Memories of Mathematics in Family Context (Markku S. Hannula, Raimo Kaasila, Erkki…

  3. Bile pigments: newcomers to the cell signaling arena.

    PubMed

    Maines, Mahin D

    2003-01-01

    The article highlighted in this issue is "2,3,7,8-Tetrachlorodibenzo-p-dioxin (TCDD)-Induced Accumulation of Biliverdin and Hepatic Peliosis in Rats," by Marjo Nittynen, Jouni T. Tuomisto, Seppo Auriola, Raimo Pohjanvirta, Paula Syrjälä, Ulla Simanainen, Matti Viluksela, and Jouko Tuomisto (pp. 112-123).

  4. A Dissent: Migration, Growth Centers, and the Ozarks

    ERIC Educational Resources Information Center

    Kuehn, John A.; Bender, Lloyd D.

    1975-01-01

    In reference to 2 recent books by Niles M. Hansen, the article questions Hansen's preemption of definitions, view of migration data, ommission of nonmonetary benefits, and use of an ambiguous index for ranking migration centers. (NQ)

  5. "The Connoisseur of Pain: A Novel", and "A New and Sharper Vision": Sensuous Aesthetics as Theological Immersion in Terrence Malick's "The Tree of Life", Thomas Kinkade's Landscapes, and Ron Hansen's "Mariette in Ecstasy"

    ERIC Educational Resources Information Center

    Busk, Michael Reid

    2013-01-01

    Creative Dissertation: "The Connoisseur of Pain" is a comic noir set in Hollywood in 1962, and its central conceit is that cartoons are real, live-action films starring anthropomorphic animals that cartoonists later replicate frame by frame in order to make the violent content palatable to children. The book's protagonist and narrator is…

  6. BAGER P, Vinkel Hansen A, Wohlfahrt J, Melbye M, et al. Helminth infection does not reduce risk for chronic inflammatory disease in a population-based cohort study. Gastroenterology. 2012;142:55-62

    PubMed Central

    Weinstock, Joel V.

    2013-01-01

    Summary Childhood infections with some helminths have been reported to reduce the risk of acquiring some immune-mediated diseases like sensitization to allergens, asthma and inflammatory bowel disease. Denmark keeps a medical registry that collects data on disease prevalence and medication use throughout the country. Mebendazole frequently is used to treat pinworm (Enterobius vermicularis) infection. In this population-based analysis of a cohort of 924,749 children, prescriptions for Mebendazole were used as a surrogate marker for pinworm infection. Children who received this medication were compared to children who did not, for the frequency of asthma, type I diabetes, juvenile arthritis, ulcerative colitis and Crohn’s disease. It was found that Mebendazole use, and by inference pinworm infection, did not appear to reduce the risk for acquiring any of these immune-mediated diseases. PMID:23429450

  7. 42 CFR 32.89 - Discharge.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... HEALTH SERVICE, DEPARTMENT OF HEALTH AND HUMAN SERVICES MEDICAL CARE AND EXAMINATIONS MEDICAL CARE FOR PERSONS WITH HANSEN'S DISEASE AND OTHER PERSONS IN EMERGENCIES Persons with Hansen's Disease § 32.89 Discharge. Patients with Hansen's disease will be discharged when, in the opinion of the medical staff...

  8. 42 CFR 32.89 - Discharge.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... HEALTH SERVICE, DEPARTMENT OF HEALTH AND HUMAN SERVICES MEDICAL CARE AND EXAMINATIONS MEDICAL CARE FOR PERSONS WITH HANSEN'S DISEASE AND OTHER PERSONS IN EMERGENCIES Persons with Hansen's Disease § 32.89 Discharge. Patients with Hansen's disease will be discharged when, in the opinion of the medical staff...

  9. 42 CFR 32.89 - Discharge.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... HEALTH SERVICE, DEPARTMENT OF HEALTH AND HUMAN SERVICES MEDICAL CARE AND EXAMINATIONS MEDICAL CARE FOR PERSONS WITH HANSEN'S DISEASE AND OTHER PERSONS IN EMERGENCIES Persons with Hansen's Disease § 32.89 Discharge. Patients with Hansen's disease will be discharged when, in the opinion of the medical staff...

  10. 77 FR 12039 - Advisory Council on Dependents' Education; Open Meeting Notice

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-02-28

    ....dodea.edu . SUPPLEMENTARY INFORMATION: Purpose of the Meeting: Recommend to the Director, DoDEA, general... North Fairfax Drive, Arlington, VA 22203 or Joel.Hansen@hq.dodea.edu . Special Accommodations....Hansen@hq.dodea.edu . Statements being submitted in response to the agendas mentioned in this notice...

  11. 38 CFR 3.552 - Adjustment of allowance for aid and attendance.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... extremities together with loss of anal and bladder sphincter control, or Hansen's disease, except where... the provisions of § 3.551 (except where the disabling condition is Hansen's disease) . (3) Additional... readmission 6 months or more after such discharge or release will be considered as a new admission....

  12. 38 CFR 3.552 - Adjustment of allowance for aid and attendance.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... extremities together with loss of anal and bladder sphincter control, or Hansen's disease, except where... the provisions of § 3.551 (except where the disabling condition is Hansen's disease) . (3) Additional... readmission 6 months or more after such discharge or release will be considered as a new admission....

  13. Among School Teachers: Bearing Witness as an Orientation in Educational Inquiry

    ERIC Educational Resources Information Center

    Hansen, David T.

    2017-01-01

    In this writing, David Hansen illuminates the aesthetic, moral, and epistemic meaning of bearing witness to teaching and teachers by drawing upon a recently completed field-based endeavor that included extensive school visits. Hansen shows how bearing witness can bring the inquirer close to the truth of teaching. However, the witness must…

  14. Humanities and Science: A Necessary Unity for the Counseling Profession

    ERIC Educational Resources Information Center

    Guterman, Jeffrey T.; Martin, Clayton V.; Kopp, David M.

    2012-01-01

    This article is a reply to Hansen's (2012) call for the counseling profession to embrace a purely humanistic ideology for counseling. The authors suggest the relationship between humanities and science set forth by Hansen does not emphasize the both-and aspects of these ideologies. An integrative framework is considered for counseling.

  15. Birth of a Canon: The Historiography of Early Republican Educational Thought. Historiographical Essay.

    ERIC Educational Resources Information Center

    Moroney, Siobhan

    1999-01-01

    Focuses on Allen O. Hansen's "Liberalism and American Education in the Eighteenth Century" and Frederick Rudolph's "Essays on Education in the Early Republic." Explores the influence of Hansen and Rudolph on other works of educational thought. Contends that a more accurate picture of the early republic is needed. (CMK)

  16. Yeasts: What's in a name? A brief reconnaissance and sampling of literature

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Scientific names (including authors) are provided for certain yeasts used by vintners and brewers: Saccharomyces cerevisiae Meyen ex E.C. Hansen, Saccharomyces bayanus var. uvarum (Beij.) G.I. Naumov (synonym Saccharomyces uvarum Beij.), Saccharomyces pastorianus Reess ex E.C. Hansen (synonym Saccha...

  17. Convergence of Personality and Interests: Meta-Analysis of the Multidimensional Personality Questionnaire and the Strong Interest Inventory

    ERIC Educational Resources Information Center

    Staggs, Gena D.; Larson, Lisa M.; Borgen, Fred H.

    2007-01-01

    Using meta-analysis, we revised Ackerman and Heggestad's (1997) identification of four trait complexes that propose personality and interest (P-I) linkages. Studies that had reported correlations between general and specific measures of vocational interests (Strong Interest Inventory [Strong; Hansen & Campbell, 1985; Harmon, Hansen, Borgen,…

  18. Developing Conceptual Understanding of Fractions with Year Five and Six Students

    ERIC Educational Resources Information Center

    Mills, Judith

    2016-01-01

    This paper presents findings from classroom observations of one teacher (Beth). It focusses on the development of conceptual understanding of fractions with her students, articulated in Kieren's sub-constructs (Kieren, 1980,1988), and Hansen's progressions (Hansen, 2005). The study covers three lessons within a six week unit. Findings from this…

  19. Biodegradation of Guanidinium By Aquatic Microorganisms.

    DTIC Science & Technology

    1985-12-01

    almost 300 ( malathion ) times higher than the upper value of the estimate.2 1 ,2 5 From the estimated yields and kinetic data for Hansen Creek...6 Most Probable Number Estimations ......................................... 8 Kinetics of...16 4. Kinetic Parameters for Hansen Creek Enrichment Microorganisms ........... 18 5. Most Probable Numbers (MPN) of Guanidinium Degrading

  20. Neural Computation as a Tool to Differentiate Perceptual from Emotional Processes: The Case of Anger Superiority Effect

    ERIC Educational Resources Information Center

    Mermillod, Martial; Vermeulen, Nicolas; Lundqvist, Daniel; Niedenthal, Paula M.

    2009-01-01

    Research findings in social and cognitive psychology imply that it is easier to detect angry faces than happy faces in a crowd of neutral faces [Hansen, C. H., & Hansen, R. D. (1988). Finding the face in the crowd--An anger superiority effect. "Journal of Personality and Social Psychology," 54(6), 917-924]. This phenomenon has been held to have…

  1. 42 CFR 32.90 - Notification to health authorities regarding discharged patients.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... discharged patients. 32.90 Section 32.90 Public Health PUBLIC HEALTH SERVICE, DEPARTMENT OF HEALTH AND HUMAN SERVICES MEDICAL CARE AND EXAMINATIONS MEDICAL CARE FOR PERSONS WITH HANSEN'S DISEASE AND OTHER PERSONS IN EMERGENCIES Persons with Hansen's Disease § 32.90 Notification to health authorities regarding...

  2. 42 CFR 32.90 - Notification to health authorities regarding discharged patients.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... discharged patients. 32.90 Section 32.90 Public Health PUBLIC HEALTH SERVICE, DEPARTMENT OF HEALTH AND HUMAN SERVICES MEDICAL CARE AND EXAMINATIONS MEDICAL CARE FOR PERSONS WITH HANSEN'S DISEASE AND OTHER PERSONS IN EMERGENCIES Persons with Hansen's Disease § 32.90 Notification to health authorities regarding...

  3. 42 CFR 32.90 - Notification to health authorities regarding discharged patients.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... discharged patients. 32.90 Section 32.90 Public Health PUBLIC HEALTH SERVICE, DEPARTMENT OF HEALTH AND HUMAN SERVICES MEDICAL CARE AND EXAMINATIONS MEDICAL CARE FOR PERSONS WITH HANSEN'S DISEASE AND OTHER PERSONS IN EMERGENCIES Persons with Hansen's Disease § 32.90 Notification to health authorities regarding...

  4. Multicomponent solubility parameters for single-walled carbon nanotube-solvent mixtures.

    PubMed

    Bergin, Shane D; Sun, Zhenyu; Rickard, David; Streich, Philip V; Hamilton, James P; Coleman, Jonathan N

    2009-08-25

    We have measured the dispersibility of single-walled carbon nanotubes in a range of solvents, observing values as high as 3.5 mg/mL. By plotting the nanotube dispersibility as a function of the Hansen solubility parameters of the solvents, we have confirmed that successful solvents occupy a well-defined range of Hansen parameter space. The level of dispersibility is more sensitive to the dispersive Hansen parameter than the polar or H-bonding Hansen parameter. We estimate the dispersion, polar, and hydrogen bonding Hansen parameter for the nanotubes to be = 17.8 MPa(1/2), = 7.5 MPa(1/2), and = 7.6 MPa(1/2). We find that the nanotube dispersibility in good solvents decays smoothly with the distance in Hansen space from solvent to nanotube solubility parameters. Finally, we propose that neither Hildebrand nor Hansen solubility parameters are fundamental quantities when it comes to nanotube-solvent interactions. We show that the previously calculated dependence of nanotube Hildebrand parameter on nanotube diameter can be reproduced by deriving a simple expression based on the nanotube surface energy. We show that solubility parameters based on surface energy give equivalent results to Hansen solubility parameters. However, we note that, contrary to solubility theory, a number of nonsolvents for nanotubes have both Hansen and surface energy solubility parameters similar to those calculated for nanotubes. The nature of the distinction between solvents and nonsolvents remains to be fully understood.

  5. Genetics Home Reference: pachyonychia congenita

    MedlinePlus

    ... Pachyonychia Congenita McLean WH, Hansen CD, Eliason MJ, Smith FJ. The phenotypic and molecular genetic features of ... 10.1001/jamadermatol.2013.6448. Citation on PubMed Smith FJ, Liao H, Cassidy AJ, Stewart A, Hamill ...

  6. Sting Supported Bell XS-2 in the 9 Inch Supersonic Tunnel

    NASA Technical Reports Server (NTRS)

    1947-01-01

    A sting supported model of the Bell XS-2 was tested in the 9 Inch Supersonic Tunnel. Photograph published in Engineer in Charge: A History of the Langley Aeronautical Laboratory, 1917-1958 by James R. Hansen. Page 316.

  7. Operation IceBridge Field Update On a Day Off

    NASA Video Gallery

    On a day off from flights in Kangerlussuaq, Greenland, science writer Kathryn Hansen and video producer Jefferson Beck give an update on Operation IceBridge from the field. They interviewed NASA en...

  8. 76 FR 22696 - City of Redwood Falls; Notice of Petition for Declaratory Order and Soliciting Comments, Protests...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-04-22

    .... Applicant Contact: Tor S. Hansen, Barr Engineering Company, 4700 West 77th Street, Edina, MN 55435...'' link. Enter the docket number excluding the last three digits in the docket number field to access...

  9. 75 FR 20623 - Notice of Filing of Plats of Survey; Arizona

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-04-20

    ... lands were officially filed in the Arizona State Office, Bureau of Land Management, Phoenix, Arizona, on... 800, Phoenix, Arizona 85004-4427. Dated: April 13, 2010. Stephen K. Hansen, Chief Cadastral...

  10. 75 FR 4622 - Qualification of Drivers; Exemption Applications; Diabetes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-01-28

    .... Bauer, Michael P. Berger, William D. Blosch, Michael Bohlen, Bradley N. Brown, Victor M. Brunner, Tom L..., Eugene G. Friedman, Edward L. Gilbert, Donald W. Hansen, Joseph S. Hernandez, Corrine J. Hoffman,...

  11. HiRISE Observations of Dynamical Phenomena on Mars

    NASA Astrophysics Data System (ADS)

    Hansen, Candice; Thomas, Nicolas; McEwen, Alfred

    Candice Hansen, candice.j.hansen@jpl.nasa.gov Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California, United States Candice Hansen, candice.j.hansen@jpl.nasa.gov Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California, United States Nicolas Thomas, nicolas.thomas@space.unibe.ch University of Bern, Bern, Switzerland Alfred McEwen, mcewen@pirl.lpl.arizona.edu Lunar and Planetary Laboratory, Tucson, Arizona, United States The HiRISE Team Alan Delamere Eric Eliason John Grant Virginia Gulick Kenneth Herkenhoff Laszlo Keszthelyi Randolph Kirk Michael Mellon Steven Squyres Cathy Weitz Chris Okubo Shane Byrne Patrick Russell The presentation will provide a review of recent observations by the HiRISE imaging system onboard the Mars Reconnaissance Orbiter. Emphasis will be placed on dynamical phenomena such as avalanches, dune motion, and jet activity at the poles.

  12. Lipid Class, Carotenoid, and Toxin Dynamics of Karenia Brevis (Dinophyceae) During Diel Vertical Migration

    EPA Science Inventory

    Karenia brevis’ (Hansen and Moestrup) internal lipid, carotenoid, and toxin concentrations are influenced by its ability to use ambient light and nutrients for growth and reproduction. This project investigated changes of K. brevis toxicity, lipid class and carotenoid concentrat...

  13. MedlinePlus: Articles about MedlinePlus

    MedlinePlus

    ... Technical Bulletin Education and Community Outreach Bowden VM, Wood FB, Warner DG, Olney CA, Olivier ER, Siegel ... PMC3519448/ . Olney C, Hansen L, Vickman A, Reibman S, Wood FB, Siegel E. Long-term outcomes of the ! ...

  14. Beyond Brain Blobs: Machine Learning Classifiers as Instruments for Analyzing Functional Magnetic Resonance Imaging Data

    DTIC Science & Technology

    2007-12-01

    Wernick A. S. Lukic, Y. Yang, L. K. Hansen, K. Arfanakis, and S. C. Strother. Ef- fect of spatial alignment transformations in pca and ica of functional...faculty.vassar.edu/lowry/webtext.html, 1999-2007. 2.1.4, 2.2.2, 2.2.5, 2.3.5 [45] A. S. Lukic, M. N. Wernick , L. K. Hansen, J. Anderson, and S. C. Strother. A

  15. Global Combat Support System-Marine Corps Logistics Chain Management Increment 1 (GCSS-MC LCM Inc 1)

    DTIC Science & Technology

    2016-03-01

    LCM Inc 1) Defense Acquisition Management Information Retrieval (DAMIR) UNCLASSIFIED GCSS-MC LCM Inc 1 2016 MAR UNCLASSIFIED 2 Table of Contents...Performance Parameter $M - Millions of Dollars MAIS - Major Automated Information System MAIS OE - MAIS Original Estimate MAR – MAIS Annual Report MDA...Technology, & Logistics GCSS-MC LCM Inc 1 2016 MAR UNCLASSIFIED 3 Mr. David Hansen 2200 Lester Street Quantico, VA 22134-5050 david.k.hansen@usmc.mil

  16. An Atmospheric Boundary Layer Stability Estimator for Urban Areas. SBIR Phase 1 Feasibility Study

    DTIC Science & Technology

    1992-12-01

    Scire S. R. Hanna Sigma Research Corporation 196 Baker Avenue Concord, MA 01742 Under Contract DAAD07-91-C-0135 Contract Monitor Frank V. Hansen ARL-CR...Sands Missile Range, NM 88003-5501 11. SUPPLEMENTARY NOTES Frank V. Hansen ( Contract Monitor) 12a. DISTRIBUTION /AVAILABILITY STATEMENT 12b. DISTRIBUTION...In the constant flux layer. Quart. J. Roy. Meteor. Soc., 96, 715-721. Gifford, F.A., Jr., 1976: Turbulent Diffusion--Typing schemes: A Review. Mucl

  17. Does the Current 20th Century Navy Personnel Management System Meet 21st Century Sailors’ Needs

    DTIC Science & Technology

    2003-04-01

    Hansen, Michael L., and Jennie W. Wenger 2002 Center for Naval Analyses, CRM D0005644.A2 Pay elasticity in different models describe the...requirements determination which placed manpower flow modeling in a preeminent position. Under the direction of Admiral James Hogg , head of the Navy’s...Source: Michael L. Hansen and Jennie W. Wenger, Why Do Pay Elasticity Estimates Differ? (Alexandria, VA: Center for Naval Analyses, CRM

  18. Northern Sea Route and Icebreaking Technology

    DTIC Science & Technology

    1994-06-01

    Hansen and J.F Storm, Eds.), vol. 2, Proshutinskii, A.Iu. (1991) Tidal water and ice dv- p. 495-506. Trondheim: Tapir Publishers. namics in the Arctic...Maritime Administration. Available from vol. 1, p. 127-131. Trondheim: Tapir Publishers. National Technical Information Service, Spring- Dean, K.G...Hansen and J.F. teoizdat. Strom, Eds.), vol. 1, p. 113-124. Trondheim, Nor- German, J.G. (1984) Arctic vessel design. Marine way: Tapir Publishers

  19. Leprosy in the 21st Century

    PubMed Central

    Franco-Paredes, Carlos

    2015-01-01

    SUMMARY Despite significant improvements in leprosy (Hansen's disease) treatment and outlook for patients since the introduction of multidrug therapy (MDT) 3 decades ago, the global incidence remains high, and patients often have long-term complications associated with the disease. In this article, we discuss recent findings related to genetics, susceptibility, and disease reservoirs and the implications of these findings for Hansen's disease control and health outcomes for patients. We describe the continued difficulties associated with treatment of inflammatory episodes known as “leprosy reactions,” which cause much of the disability associated with the disease and can affect people for many years after MDT is complete. We also discuss some of the contemporary challenges for physicians and patients, including international and internal migration of people affected by the disease. We suggest some important areas of focus for future Hansen's disease research. PMID:25567223

  20. Nailfold capillaroscopy in leprosy*

    PubMed Central

    de Lima, Adma Silva; Pizzol, Vanessa Irusta dal; Fritsch, Scheila; Fonseca, Gabriela Poglia; Mulinari-Brenner, Fabiane Andrade; Muller, Carolina de Souza; Ottoboni, Vanessa Cristhine Dalombo

    2016-01-01

    Due to mounting evidences of interaction between Hansen's bacilli with endothelial cells and the paucity of studies addressing the presence of nailfold capillaroscopic alterations in patients with Hansen's disease, a study was carried out in order to verify the presence of capillaroscopic alterations in patients with leprosy in its various forms and its correlation with clinical parameters. Ten patients were evaluated at a specialized university service. Sixty percent of those had some capillaroscopic change, such as micro-hemorrhages, ectatic, bushy and corkscrew capillaries. Such changes were unspecific, which suggests there is not a specific pattern for this disease. PMID:27828654

  1. Carville and Curupaiti: experiences of confinement and community.

    PubMed

    White, Cassandra

    2003-01-01

    Although Hansen's disease (leprosy) is still a significant problem in many parts of the world, the effectiveness of multidrug therapy has allowed people affected by this disease to be treated on an outpatient basis. However, throughout much of the twentieth century, people diagnosed with Hansen's disease were isolated from their families in facilities known as "leprosaria". This article presents a brief history of isolation policies and the development of community structures at two such facilities, Carville and Curupaiti, in the United States and Brazil, respectively. The modern dilemmas faced by the administration, staff, and residents of these institutions will also be discussed.

  2. Oxygen Transport to Human Tissues.

    DTIC Science & Technology

    1981-06-01

    Respiration and CSF Acid-Base Balance John W. Severinghaus As my part of this delightful festival honoring Ulrich Luft. I plan to summarize the role of high...Tobias, M.C. and Drasdo. H.. eds. Woodstock . N.Y.: Overlook Press. pp. 117-124. Formand, S.A., Lansdowne, M.. Follansbee, J.N., and Hansen. J.E. 1968

  3. Accelerated Program in Elementary-School Mathematics--The Fourth Year.

    ERIC Educational Resources Information Center

    Suppes, Patrick; Ihrke, Constance

    Reported is the description of the fourth year (1966-67) of a longitudinal study of the accelerated program involving 30 bright students in elementary school mathematics. This report was written to be as homogeneous as possible with earlier reports by Suppes and Hansen (1965), Suppes (1966), and Suppes and Ihrke (1967). Tables and figures in this…

  4. Community Partners' Perspectives of Community-University Partnerships that Support Service-Learning

    ERIC Educational Resources Information Center

    Witchger Hansen, Anne Marie

    2010-01-01

    Community partner voices are important to understand because they provide the contexts in which occupational therapy students meet course objectives by applying clinical reasoning theory and developing clinical reasoning skills in a natural context (Witchger-Hansen et al., 2007; Provident, et al., 2011). To sustain these community-university…

  5. Molecular Dynamics of Propellant Gases. Part 2,

    DTIC Science & Technology

    motion of nitrogen gas molecules can be described using the laws of classical mechanics. Lennard - Jones and exponential-6 potentials are used to...of state and perturbation theory. It is found that the Lennard - Jones potential works well at 3000K and that the Hansen perturbation theory could become an effective method for calculating the pressure for real gases.

  6. Optimal Aeroacoustic Shape Design Using the Surrogate Management Framework

    DTIC Science & Technology

    2004-02-09

    wish to thank the IMA for providing a forum for collaboration, as well as Charles Audet and Petros Koumoutsakos for valuable discussions. The authors...17] N. Hansen, D. Mller, and P. Koumoutsakos . Reducing the time complexity of the derandomized evolution strategy with covariance matrix adaptation...P. Koumoutsakos . Optimal aeroacoustic shape design using approximation modeling. Annual Research Briefs, Center for Turbulence Research, Stanford

  7. The Precise Time Course of Lexical Activation: MEG Measurements of the Effects of Frequency, Probability, and Density in Lexical Decision

    ERIC Educational Resources Information Center

    Stockall, Linnaea; Stringfellow, Andrew; Marantz, Alec

    2004-01-01

    Visually presented letter strings consistently yield three MEG response components: the M170, associated with letter-string processing (Tarkiainen, Helenius, Hansen, Cornelissen, & Salmelin, 1999); the M250, affected by phonotactic probability, (Pylkkanen, Stringfellow, & Marantz, 2002); and the M350, responsive to lexical frequency (Embick,…

  8. Magnetoplasmadynamics (MPD)

    NASA Technical Reports Server (NTRS)

    1963-01-01

    'In this April 1963 photo, Magnetoplasmadynamics (MPD) lab technician Charlie Diggs regulates the flow of a test gas in an early 10-kilowatt test version of Langley's Hall-current plasma accelerator.' Published in James R. Hansen, Spaceflight Revolution: NASA Langley Research Center From Sputnik to Apollo, NASA SP-4308, p. 137.

  9. Relatedness of the Holland-Grouped Strong-Campbell Interest Inventory Occupational Scale Placements.

    ERIC Educational Resources Information Center

    Apostal, Robert A.

    1984-01-01

    Estimated the relatedness of category placements of the Occupational Scales of the Strong-Campbell Interest Inventory for 87 college women. Results showed the Campbell and Hansen placements of 44 Occupational Scales were classified as related; 19 were discrepant by one criteria and 12 were discripant by both study criteria. (JAC)

  10. 38 CFR 3.551 - Reduction because of hospitalization.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... veteran is hospitalized for Hansen's disease. The provisions of this section apply to initial periods of... VA institution begins a new period of hospitalization, unless the veteran was released for purposes... release shall be considered a new admission. (Authority: 38 U.S.C. 5503(a)) (c) Section 306 pension....

  11. Linking Leisure Interests to the RIASEC World of Work Map

    ERIC Educational Resources Information Center

    Armstrong, Patrick Ian; Rounds, James

    2008-01-01

    The present study presents an interpretive framework for linking leisure interests, measured by the Leisure Interest Questionnaire (LIQ), to J. L. Holland's (1997) circumplex model of the world of work. Published data representing correlations between the LIQ and Holland's RIASEC interest types were obtained from Hansen and Scullard (2002).…

  12. Rejoinder to Lemberger

    ERIC Educational Resources Information Center

    Hansen, James T.

    2012-01-01

    Lemberger (2012) argues that the author (Hansen, 2012) has no basis for recommending differential weightings or priorities to humanism and science, because those ideologies are only meaningful as they are subjectively interpreted within the counseling encounter. The author responds that their positions are completely compatible, but his focus was…

  13. Second Language Acquisition by Low-Literate Learners: An Understudied Population

    ERIC Educational Resources Information Center

    Tarone, Elaine

    2010-01-01

    Many adolescent and adult L2 learners in language classrooms, both in the US and other countries, have little or no alphabetic print literacy. Language teachers may turn to SLA research for assistance, yet almost all research on oral SLA has focused on educated, highly-literate learners (Bigelow & Tarone 2004; Tarone, Bigelow & Hansen 2009). The…

  14. Extending the Principles of Intensive Writing to Large Macroeconomics Classes

    ERIC Educational Resources Information Center

    Docherty, Peter; Tse, Harry; Forman, Ross; McKenzie, Jo

    2010-01-01

    The authors report on the design and implementation of a pilot program to extend the principles of intensive writing outlined by W. Lee Hansen (1998), Murray S. Simpson and Shireen E. Carroll (1999) and David Carless (2006) to large macroeconomics classes. The key aspect of this program was its collaborative nature, with staff from two specialist…

  15. Parents as Partners in Art Education Enrichment

    ERIC Educational Resources Information Center

    Hansen, Laurie

    2008-01-01

    The author describes a parent art program, how it works, and ways to implement it. She emphasizes the strengths of parent programs as a way to support and enrich existing arts education, not as a replacement. Hansen describes the art kit--the adult's teaching resource--and the basic four-part process: presentation, demonstration, an art activity,…

  16. Lattice-Boltzmann methods for suspensions of solid particles

    NASA Astrophysics Data System (ADS)

    Ladd, Anthony J. C.

    2015-09-01

    In this paper, dedicated to Prof. Jean-Pierre Hansen, I will summarise the development of lattice-Boltzmann methods for simulating the dynamics of colloidal suspensions. I will describe the main ideas and subsequent improvements, and place them in the wider context of particle-based methods for fluid dynamics.

  17. What is new in polycystic ovary syndrome? Best articles from the past year.

    PubMed

    Hansen, Keith A

    2014-09-01

    This month, we focus on current research in polycystic ovary syndrome. Dr. Hansen discusses six recent publications, and each is concluded with a "bottom line" that is the take-home message. The complete reference for each can be found in on this page, along with direct links to the abstracts.

  18. The Long Run

    ERIC Educational Resources Information Center

    Donnelly, Laura

    2007-01-01

    This article profiles six educators who have taught for as long as two generations. These educators are the following: (1) Hazel Wilson--teaching 47 years; (2) Agnes Zeiger--teaching 61 years; Rose Gilbert--teaching 51 years; (4) Ellie Johnson--teaching 52 years; (5) Roy Clare--teaching 48 years; and (6) Carrie Hansen--54 years in education. These…

  19. Preliminary study of mysid community on seagrass bed of Pulau Tinggi, Johor

    NASA Astrophysics Data System (ADS)

    Siang, Tan Hai; Rahim, Azman Abdul; Ross, Othman Haji

    2015-09-01

    This study aims to elucidate the abundance and species composition of the mysid community from seagrass bed of Pulau Tinggi. Samples were taken from July 2009 until October 2009 excluding September 2009 by using epibenthic sledge from Kampung Pasir Panjang and Kampug Sebirah Kecil. A greater abundance of mysids occurred in the seagrass area of Kampung Pasir Panjang (69.10%) compared to the Kampung Sebirah Kecil (30.90%). Maximum mysid abundance occurred during October at both study sites for the whole study period. A total of 1136 mysid individuals comprising 14 species from 5 subfamilies were identified. They were Erythrops minuta Hansen, 1910, Anchialina dentata Pillai, 1964, Haplostylus bengalensis (Hansen, 1910), Haplostylus sp. 1, Haplostylus sp. 2, Pseudanchialina inermis (Illig, 1906), Prionomysis aspera Ii, 1937, Acanthomysis longispina Fukuoka & Murano, 2002, Acanthomysis platycauda (Pillai, 1961), Acanthomysis quadrispinosa Nouvel, 1965, Anisomysis aikawai Ii, 1964, Lycomysis spinicauda Hansen, 1910 and Siriella vulgaris Hansen, 1910. Maximum species richness occurred in the Kampung Sebirah Kecil (10) during July 2009 followed by October 2009 (9) and August 2009 (8) while for Kampung Pasir Panjang highest species richness occurred during October 2009 (8), July 2009 (7) and August 2009 (6). Siriella vulgaris was the most dominant species consisting 41.20% (195ind/m3) of the total mysids sampled.

  20. Work Values of University Students in Chinese Mainland, Taiwan, and Hong Kong

    ERIC Educational Resources Information Center

    Wong, Shui Wai; Yuen, Mantak

    2012-01-01

    Leuty and Hansen ("Journal of Vocational Behavior" 79:379-390, 2011) identified six domains of work values in undergraduate students in the West. The review undertaken in this paper suggests that the factor structure of work values of university students in Mainland China, Taiwan and Hong Kong essentially matches these six domains,…

  1. Scholarly Learning as Vocation: A Study of Community and Broad Access Liberal Arts College Faculty

    ERIC Educational Resources Information Center

    Terosky, Aimee LaPointe; Gonzales, Leslie D.

    2016-01-01

    In this study we extended Neumann's scholarly learning theory (2009)?and Hansen's theory on vocation (1994, 1995) to explore the scholarly learning of faculty members employed at institutional types not typically recognized for faculty work beyond teaching. Through interviews with 22 participants, we studied the content of and reasons for…

  2. Understanding the Work Beliefs of Nonprofit Executives through Organizational Stories. [and] Invited Reaction: Understanding the Work Beliefs of Nonprofit Executives through Organizational Stories.

    ERIC Educational Resources Information Center

    Wilensky, Ava S.; Hansen, Carol D.; Rocco, Tonette S.

    2001-01-01

    Wilensky and Hansen report on interviews with 28 nonprofit executives revealing that they share beliefs, values, and assumptions that differ from the for-profit sector. Participants saw themselves operating in an ambiguous environment, balancing business requirements with a spiritual mission. Rocco's reaction questions whether the study…

  3. Ethnic Mongol Students and Cultural Recognition: Case Studies of Three Chinese Universities

    ERIC Educational Resources Information Center

    Zhenzhou, Zhao

    2007-01-01

    Cultural recognition is of growing interest in China, where ethnic identity has become an increasingly conspicuous issue (Gladney 1994, 1996; Hansen 1999; Harrell 1990, 2001; Lee 2001; Postiglione 1999; Postiglione, Zhu, and Ben 2004; Teng 2001). However, the role of institutions of Chinese higher education has received little attention, despite…

  4. Cosmopolitanism as Communication? On Conditions for Educational Conversations in a Globalized Society

    ERIC Educational Resources Information Center

    Wahlström, Ninni

    2016-01-01

    In this article, I explore the question of how a cosmopolitan perspective on education could be understood from curriculum-based activities in classrooms. Assuming that there is a cosmopolitan potential in curriculum content as such, I draw on David Hansen, Anthony Kwame Appiah and Donald Davidson to argue that cosmopolitanism at the classroom…

  5. Accuracy in Recalling Interest Inventory Information at Three Time Intervals

    ERIC Educational Resources Information Center

    Swanson, Jane L.; Gore, Paul A., Jr.; Leuwerke, Wade; D'Achiardi, Catalina; Edwards, Jorie Hitch; Edwards, Jared

    2006-01-01

    Rates of accurate recall of the Strong Interest Inventory (SII; L. W. Harmon, J. C. Hansen, F. H. Borgen, & A. L. Hammer, 1994) profile information varied with the amount of time elapsed since the interpretation, the type of SII scale, and whether immediate recall was elicited, but rates did not vary with the strategy used to provide the…

  6. Measuring Baseline Cortisol Levels in Cetaceans: Developing a Novel Non-Invasive Analysis Method

    DTIC Science & Technology

    2012-09-30

    Jakob Højer Kristensen, MSc). The proposed study will develop a method for extracting cortisol from cetacean skin using a two-step inverse...first real step toward establishing such a method. REFERENCES Hansen M, Jacobsen NW, Nielsen KN, Björklund E, Styrishave B & Halling-Sørensen B

  7. Focus: A Forum on Teaching and Learning in Utah Community and Technical Colleges, Volume II.

    ERIC Educational Resources Information Center

    Carpenter, Don A., Ed.

    1983-01-01

    A series of articles is presented on teaching and learning in Utah community and technical colleges. After an editorial comment by J. Marvin Higbee on the goals and purposes of the Utah Association of Community Colleges, V. Lowell Hansen discusses the role of the technical instructor in the information society of the 1980's. Next, Ace G.…

  8. Annual NASSGP/NCHELP Conference on Student Financial Aid Research (3rd, Chicago, Illinois, May 28-30, 1986). The Proceedings, Volume 1.

    ERIC Educational Resources Information Center

    Illinois State Scholarship Commission, Deerfield.

    The National Association of State Scholarship and Grant Programs/National Council of Higher Education Loan Programs conference on student aid is reported. Following the conference agenda and lists of registrants and conference speakers, the following papers are presented: (1) "Reinterpretation of Hansen's Census Data" (John B. Lee); (2)…

  9. New Directions for Learning Community Assessment and Research

    ERIC Educational Resources Information Center

    Huerta, Juan Carlos

    2008-01-01

    At the 12th Annual National Learning Communities Conference in November 2007, Juan Carlos Huerta, Gale Stuart, Lauren Chism, and Michele Hansen participated in a panel discussion about new directions in learning communities assessment and research. The intent of the panel discussion was to hear from those involved in learning community assessment,…

  10. Demographics of Adolescent Pregnancy in the United States. Joint Hearing before the Subcommittee on Census and Population of the Committee on Post Office and Civil Service and the Subcommittee on Health and the Environment of the Committee on Energy and Commerce. House of Representatives, Ninety-Ninth Congress, First Session.

    ERIC Educational Resources Information Center

    Congress of the U.S., Washington, DC. House Committee on Energy and Commerce.

    This document provides witness testimonies and prepared statements from the Congressional hearing called to examine the issue of adolescent pregnancy. Opening statements are given by Congressmen Henry A. Waxman, Robert Carcia, James Scheuer, and James V. Hansen. Witnesses include William Butz and Martin O'Connell from the Bureau of the Census who…

  11. Future Foreign Language Teachers' Social and Cognitive Collaboration in an Online Environment

    ERIC Educational Resources Information Center

    Arnold, Nike; Ducate, Lara

    2006-01-01

    Discussion boards provide an interactive venue where new and future language teachers can reflect, evaluate, solve problems or simply exchange ideas (e.g., Bonk, Hansen, Grabner-Hagen, Lazar, & Mirabelli, 1996; DeWert, Babinski, & Jones, 2003; Kumari, 2001; Pawan, Paulus, Yalcin, & Chang, 2003). In addition, encouraging future teachers to learn…

  12. A Quantitative Study of Cohesion in Chinese Graduate Students' Writing: Variations across Genres and Proficiency Levels.

    ERIC Educational Resources Information Center

    Jin, Wenjun

    This study presents a quantitative analysis of cohesion of the academic writing of Chinese English-as-a-Second-Language (ESL) graduate students by applying Halliday and Hansen's (1976) model. Six Chinese graduate students from a Midwestern university were selected for the study, representing two proficiency levels in written English--advanced and…

  13. Evidence of Construct Validity of the Interest Scales on the Campbell Interest and Skill Survey

    ERIC Educational Resources Information Center

    Sullivan, Brandon A.; Hansen, Jo-Ida C.

    2004-01-01

    This study explored evidence of the construct validity of the interest scales on the Campbell Interest and Skill Survey (CISS; Campbell, Hyne, & Nilsen, 1992) by testing evidence for convergent validity with the Strong Interest Inventory (SII; Hansen & Campbell, 1985). Two hypotheses were formulated. First, matching CISS and SII scales…

  14. Problems of Practice: Canadian Cases in Leadership and Policy

    ERIC Educational Resources Information Center

    Pollock, Katina; Ryan, James

    2013-01-01

    One way to support aspiring and current administrators is through the use of case study teaching (Barnes, Christensen, & Hansen, 1994). Using case studies as a teaching and learning tool helps bring real-life situations into principal preparation and support programs. Case study approaches provide students with time to interrogate contemporary…

  15. National Science Resources Center Project for Improving Science Teaching in Elementary Schools. Appendix A. School Systems With Exemplary Elementary Science Programs. Appendix B. Elementary Science Network

    DTIC Science & Technology

    1988-12-01

    Malcolm, Chairman of the Department of Education American Museum of Natural History Hayden Planetarium Artley, Jan, Coordinator of Science Midland... Planetarium Brownrigg, Robert, K-12 Science Supervisor Kansas City Unified School District 500 Brownstein, Bonnie, President Institute for Schools of the...Delco School District Cerveny, Ronald, School District of Phillips Chamberlain, VonDel, Director Hansen Planetarium Chambers, Bob, K-12 Science

  16. The Impact of Desegregation on Achievement Test Scores of Black and White Students in Rural and an Urban County: Implications for Counseling.

    ERIC Educational Resources Information Center

    Smith, Annie D.; Johnson, Constance

    This study's findings are consistent with the views and findings of others, such as Hansen(1960), Coleman (1966), and Maynor and Katzenmeyer (1974). Also, this study as well as others explicitly demonstrate to educators and those of us in the helping professions, such as school counselors and counselor educators, that the most studied group of…

  17. Investigation of Clinically Significant Change by Severity Level in College Counseling Center Clients

    ERIC Educational Resources Information Center

    Wolgast, Brad M.; Rader, Jill; Roche, Deborah; Thompson, C. Patricia; von Zuben, F. Christian; Goldberg, Allan

    2005-01-01

    The authors investigated the number of sessions necessary for college counseling center clients of different levels of severity of distress at intake to achieve clinically significant change (CS) in therapy. The Outcome Questionnaire-45 (M. J. Lambert, N. B. Hansen, et al., 1996) was used to categorize 914 clients by severity of distress. Analyses…

  18. 104. View of TR antenna, workers on "hanging garden," official ...

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

    104. View of TR antenna, workers on "hanging garden," official photograph BMEWS Project by Hansen, 11 February 1981, clear as negative no. A-17701. - Clear Air Force Station, Ballistic Missile Early Warning System Site II, One mile west of mile marker 293.5 on Parks Highway, 5 miles southwest of Anderson, Anderson, Denali Borough, AK

  19. College Savings Plans: Public Policy Choices.

    ERIC Educational Resources Information Center

    Hansen, Janet S., Ed.

    Six articles discuss college savings plans. "Introduction and Overview" by Janet S. Hansen addresses the affordability of college, parental responsibility for college savings, incentives for saving, and the risks and rewards of planning for college expenses. "The Need for College Savings" (Sandy Baum) emphasizes the parents'…

  20. A Program of Research on Microfabrication Techniques for VLSI Magnetic Devices.

    DTIC Science & Technology

    1984-11-01

    resonance measurements were done using a wideband microwave spectrometer, to determine the magnetic...for YIG. After Hansen [53] 32 Fig. 2-11: Temperature Dependence of Stress Averaging Factor F 34 Fig. 2-12. Frequency Response of the Microwave Signal...Strain uniformity (1M.- . Ol a O-ring radius f Microwave frequency = /2w

  1. Application of the Method of Auxiliary Sources for the Analysis of Plane-Wave Scattering by Impedance Spheres

    DTIC Science & Technology

    2002-09-01

    in good agreement with the reference spherical wave expansion (SWE) solution. REFERENCES [1] Y. Leviatan et al., IEEE Trans. Antennas Propagat., vol...2002 [5] Y. Leviatan et al., IEEE Trans. Antennas Propagat., vol. 38, 1259-1263, Aug. 1990 [6] J. E. Hansen, Spherical Near-Field Antenna

  2. Transmission Dynamics and Prospective Environmental Sampling of Adenovirus In a Military Recruit Setting

    DTIC Science & Technology

    2005-10-05

    Nikki E. Freed,1 Emily Moradi,3 David J. Ecker,2 Peter E. Kammerer,1 Miguel A. Osuna,1 Adriana E. Kajon,4 Cassandra B. Morn,1,a and Margaret A. K...and laboratory teams who made a study such as this possible, including Joseph Ault, Daisy Cabrera , Shanen Conway, Kevin Gratwick, Christian Hansen

  3. A Review of Physical Activity Levels during Elementary School Physical Education

    ERIC Educational Resources Information Center

    Fairclough, Stuart J.; Stratton, Gareth

    2006-01-01

    Regular physical activity participation throughout childhood provides benefits to physical (Malina, Bouchard, & Bar-Or, 2004), physiological (Andersen, Wedderkopp, Hansen, Cooper, & Froberg, 2003), and psychological health (Mutrie & Parfitt, 1998). In recognition of these benefits, guidelines have been published in the United States…

  4. Portrait of Antonia Ferri

    NASA Technical Reports Server (NTRS)

    1945-01-01

    After fighting the Nazis as chief of a partisan brigade, Antonio Ferri brought important new information to Langley in 1944 about current German and Italian research in high speed aerodynamics. Photograph published in Engineer in Charge: A History of the Langley Aeronautical Laboratory, 1917-1958 by James R. Hansen. Page 319.

  5. CONTINUOUS BLACK CARBON MEASUREMENTS INDOORS AND OUTDOORS AT AN OCCUPIED HOUSE FOR ONE YEAR

    EPA Science Inventory

    Black carbon is one of the components of particulate matter, and is of importance because the only known source of aerosol black carbon in the atmosphere is the combustion of carbonaceous fuels (Hansen, 1997). Polyaromatic hydrocarbons (PAH) formed in the combustion process ar...

  6. Tactical/Combat Engines Cetane Window Evaluation

    DTIC Science & Technology

    2013-01-31

    custom diesel fuels typically used in Homogeneous Charge Coupled Ignition ( HCCI ) research engines . These fuels are characterized by a very heavy...UNCLASSIFIED TACTICAL/COMBAT ENGINES CETANE WINDOW EVALUATION INTERIM REPORT TFLRF No. 436 by Gregory A. Hansen, Douglas Yost...report when no longer needed. Do not return it to the originator. UNCLASSIFIED UNCLASSIFIED TACTICAL/COMBAT ENGINES CETANE WINDOW

  7. Aging, Disability, and the Nation's Productivity. A Report on the Mary E. Switzer Memorial Seminar (15th, Washington, D.C., June 3-5, 1991).

    ERIC Educational Resources Information Center

    Perlman, Leonard G., Ed.; Hansen, Carl E., Ed.

    This monograph contains proceedings of a seminar focusing on the enhancement of the lives and independence of older Americans with disabilities. Introductory materials include: an Introduction (Leonard Perlman, Carl Hansen); Seminar Greeting (Richard Materson); Welcome (Harry Smith, Martin Sicker); a foreword, "Meeting the Changing Needs of an…

  8. Ocean Surface Wave Optical Roughness: Innovative Polarization Measurement

    DTIC Science & Technology

    2006-01-01

    whitecap breaking waves. * Prof. Michael L . Banner, School of Mathematics, The University of NSW, Sydney, Australia Dr. Bertrand Chapron...breaking waves from infrared imagery using a PIV algorithm. Meas. Sci. Technol. 16, 1961-1969. Phillips, O. M., Posner, F. L ., and Hansen , J. P

  9. Multiple Imputation for Multivariate Missing-Data Problems: A Data Analyst's Perspective.

    ERIC Educational Resources Information Center

    Schafer, Joseph L.; Olsen, Maren K.

    1998-01-01

    The key ideas of multiple imputation for multivariate missing data problems are reviewed. Software programs available for this analysis are described, and their use is illustrated with data from the Adolescent Alcohol Prevention Trial (W. Hansen and J. Graham, 1991). (SLD)

  10. Investigation of a redox-sensitive predictive model of mouse embryonic stem cells differentiation using quantitative nuclease protection assays and glutathione redox status

    EPA Science Inventory

    Investigation of a redox-sensitive predictive model of mouse embryonic stem cell differentiation via quantitative nuclease protection assays and glutathione redox status Chandler KJ,Hansen JM, Knudsen T,and Hunter ES 1. U.S. Environmental Protection Agency, Research Triangl...

  11. Current Collapse Induced in AlGaN/GaN High-Electron-Mobility Transistors by Bias Stress

    DTIC Science & Technology

    2003-08-25

    structure where the traps causing current collapse can be passivated by forming H-defect complexes. Hierro et al.7 have shown, for example, that deep...Lett. 75, 4016 ~1999!. 7 A. Hierro , S. A. Ringel, M. Hansen, J. S. Speck, U. K. Mishra, and S. P. DenBaars, Appl. Phys. Lett. 77, 1499 ~2000!. 8 S. J

  12. West Europe Report

    DTIC Science & Technology

    1987-04-22

    Preben Moller Hansen’s program lacks political reality, his style is arro- gant and he will not be able to create a Glistrup groundswell on the left...luck. Thus it is understandable that the businessmen on the top level eye them fearfully, and that a banker like Pablo Garnica could have said: "We

  13. America's Century III--The Engineer's Opportunity and Responsibility

    ERIC Educational Resources Information Center

    Miller, Cheryl

    1976-01-01

    Presents highlights of the addresses of Arthur G. Hansen, Robert C. Seamans, Jr., and Edward R. Kane to the plenary session of the annual conference of the American Society for Engineering Education. Topics include energy, economics, governmental regulation, and the role of minorities and women in engineering in the coming century. (SL)

  14. Alexander Graham Bell Association for the Deaf and Hard of Hearing

    MedlinePlus

    ... fourteen-year-old Harrison Hansen for a personal account of what it’s like to be the only hard-of-hearing student in his school. Read the full letter 3417 Volta Place, NW | Washington, DC 20007 | (202) 337-5220 Donate Privacy Policy AG Bell Academy View the full site

  15. 75 FR 9877 - Notice of Petitions by Firms for Determination of Eligibility To Apply for Trade Adjustment...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-03-04

    .../23/2010 Moulds for the glass industry and machines Latrobe, PA 15650. metal parts for the defense, energy and mining industries. A Forbes Company, Inc 1035 Harper Avenue, 2/24/2010 The firm produces... floors and walls. Carpet, vinyl and 64064. wood. R.E. Hansen Industries, Inc.... 22 Research Way, East...

  16. 42 CFR 32.88 - Examinations and treatment.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 42 Public Health 1 2010-10-01 2010-10-01 false Examinations and treatment. 32.88 Section 32.88... Hansen's Disease § 32.88 Examinations and treatment. Patients will be provided necessary clinical examinations which may be required for the diagnosis of primary or secondary conditions, and such treatment...

  17. Each Belongs: The Remarkable Story of the First School System to Move to Inclusion

    ERIC Educational Resources Information Center

    Hansen, Jim

    2012-01-01

    The Hamilton-Wentworth Catholic District School Board has just celebrated 30 Years of Fully Inclusive Education for All. Their mission statement: "EACH BELONGS". This remarkable book by Jim Hansen collects the history--including an extensive collection of documents and letters from teachers and families--that tell the stories of the…

  18. Rejoinder to Guterman, Martin, and Kopp

    ERIC Educational Resources Information Center

    Hansen, James T.

    2012-01-01

    In their reply to the author's keystone article (Hansen, 2012), Guterman, Martin, and Kopp (2012) charge that the author's integrative framework was not sufficiently integrative. They also argue that his proposal results in logical contradictions and the mind-body problem. The author responds by noting that his proposal fully integrates the…

  19. "The Power to Develop Dispositions": Revisiting John Dewey's Democratic Claims for Education

    ERIC Educational Resources Information Center

    Baldacchino, John

    2008-01-01

    This article reviews "John Dewey and Our Educational Prospect, A Critical Engagement with Dewey's Democracy and Education," edited and spearheaded by David T. Hansen, with contributions by Gert Biesta, Reba N. Page, Larry A. Hickman, Naoko Saito, Gary D. Fenstermacher, Herbert M. Kliebard, Sharon Fieman-Nemser and Elizabeth Minnich. This…

  20. The Relationship between First-Generation Students' Educational Background and Selected Academic and Non-Academic Variables

    ERIC Educational Resources Information Center

    Summerville, Bernadette M.

    2009-01-01

    The door to college is open for increasing numbers of students for whom adapting to college may be a great challenge (Kamphoff, Hutson, Amundsen, & Atwood, 2007). Hansen (1998) noted that the overall academic preparation level has declined for students entering college and that academic disengagement in college has increased among many…

  1. Organization Development. Symposium.

    ERIC Educational Resources Information Center

    2002

    This document contains four papers on organization development and human resources. "Identification of Key Predictors of Rapid Change Adaptation in a Service Organization" (Constantine Kontoghiorghes, Carol Hansen) reports on the results of an exploratory study, which suggests that rapid change adaptation will be more likely to occur in…

  2. Naval Postgraduate School Research. Volume 10, Number 1, February 2000

    DTIC Science & Technology

    2000-02-01

    Astronautics is the 1999 recipient of the Carl E. and Jessie W. Menneken Annual Faculty Award for Excel- lence in Scientific Research. Dr. Kaminer has...2000. D. Grove, D. Hansen, G. Hobson, and D. Schnorenberg, “Effect of Reynolds Number on Separa- tion Bubbles on Controlled-Diffusion Compressor

  3. The Grief Account: Dimensions of a Contemporary Bereavement Genre

    ERIC Educational Resources Information Center

    Dennis, Michael Robert

    2008-01-01

    The genre of the grief account is identified to include published narratives of surviving grief. Thematic analysis of Andrew Holleran's (2006) "Grief: A Novel," Lolly Winston's (2004) "Good Grief: A Novel," Joan Didion's (2005) "The Year of Magical Thinking," and J. Canfield and M. V. Hansen's (2003) "Chicken Soup for the Grieving Soul: Stories…

  4. Proceedings of the Annual Meeting of the Association for Education in Journalism and Mass Communication (76th, Kansas City, Missouri, August 11-14, 1993). Part VI: Media and Law.

    ERIC Educational Resources Information Center

    Association for Education in Journalism and Mass Communication.

    The Media and Law section of this collection of conference presentations contains the following 12 papers: "An Analysis of the Role of Insurance, Prepublication Review and Correction Policies in Threatened and Actual Libel Suits" (Elizabeth K. Hansen and Roy L. Moore); "Private Defamation Plaintiffs and Falsity since 'Philadelphia…

  5. Benjamin's Angel of History and the Work of Mourning in Ethical Remembrance: Understanding the Effect of W.G. Sebald's Novels in the Classroom

    ERIC Educational Resources Information Center

    Joldersma, Clarence W.

    2014-01-01

    The paper develops a conceptual framework for understanding the work of ethical remembrance in the classroom. Using David Hansen's recent example of using Sebald's novels in his classroom to do the work or remembrance, the paper argues that the effect of Sebald's novels is best understood using Walter Benjamin's figure of the…

  6. From PE Experiences to PE Teaching Practices? Insights from Scottish Primary Teachers' Experiences of PE, Teacher Education, School Entry and Professional Development

    ERIC Educational Resources Information Center

    Elliot, Dely L.; Atencio, Matthew; Campbell, Theresa; Jess, Mike

    2013-01-01

    Morgan and Hansen suggest that further research is needed to explore how non-specialist primary teachers approach and teach physical education (PE) based on their personal school PE backgrounds, teacher education experiences and ongoing professional development. This paper adopts Lawson's socialisation model, a theoretical framework subsequently…

  7. Beyond Desktop Management: Scaling Task Management in Space and Time

    DTIC Science & Technology

    2004-08-01

    infrastructure scales well with the number of task definitions, and with the number of services in the environment. References 1 Abowd, G., Mynatt , E.: Charting...Intel Research Report IRP-TR-02-01, Jun. 1, 2002. 15 MacIntyre, B., Mynatt , E., Voida, S., Hansen, K., Tullio, J., Corso, G.: Support For Multitasking

  8. 40 CFR Appendix to Part 246 - Recommended Bibliography

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... Belknap, M. Paper recycling: a business perspective. Subcommittee on Solid Waste, New York Chamber of... Publication SW-155. Washington, U.S. Government Printing Office, 1975. 26 p. Hansen, P. Solid waste recycling... Printing Office, 1973. 284 p. Lingle, S. A. Paper recycling in the United States. Washington,...

  9. 40 CFR Appendix to Part 246 - Recommended Bibliography

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... Belknap, M. Paper recycling: a business perspective. Subcommittee on Solid Waste, New York Chamber of... Publication SW-155. Washington, U.S. Government Printing Office, 1975. 26 p. Hansen, P. Solid waste recycling... Printing Office, 1973. 284 p. Lingle, S. A. Paper recycling in the United States. Washington,...

  10. 40 CFR Appendix to Part 246 - Recommended Bibliography

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... Belknap, M. Paper recycling: a business perspective. Subcommittee on Solid Waste, New York Chamber of... Publication SW-155. Washington, U.S. Government Printing Office, 1975. 26 p. Hansen, P. Solid waste recycling... Printing Office, 1973. 284 p. Lingle, S. A. Paper recycling in the United States. Washington,...

  11. 40 CFR Appendix to Part 246 - Recommended Bibliography

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... Belknap, M. Paper recycling: a business perspective. Subcommittee on Solid Waste, New York Chamber of... Publication SW-155. Washington, U.S. Government Printing Office, 1975. 26 p. Hansen, P. Solid waste recycling... Printing Office, 1973. 284 p. Lingle, S. A. Paper recycling in the United States. Washington,...

  12. 40 CFR Appendix to Part 246 - Recommended Bibliography

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... Belknap, M. Paper recycling: a business perspective. Subcommittee on Solid Waste, New York Chamber of... Publication SW-155. Washington, U.S. Government Printing Office, 1975. 26 p. Hansen, P. Solid waste recycling... Printing Office, 1973. 284 p. Lingle, S. A. Paper recycling in the United States. Washington,...

  13. When Talent Is Not Enough: Why Technologically Talented Women Are Not Studying Technology

    ERIC Educational Resources Information Center

    Autio, Ossi

    2013-01-01

    This article builds on two earlier studies. The first one defined and assessed technological competence among adolescents (Autio & Hansen, 2002). The second, traced three students who had achieved the best results in a measurement of technological competence given 15 years ago (Autio, 2011). This study showed that, in terms of technological…

  14. Curtis Racer

    NASA Technical Reports Server (NTRS)

    1990-01-01

    James H. Doolittle, the NACA's last chairman, visited Langley in February 1928 in his Curtiss Racer, the plane in which he won the 1925 Schneider Trophy Race. Photograph published in Engineer in Charge: A History of the Langley Aeronautical Laboratory, 1917-1958 by James R. Hansen (page 403).

  15. Medical Surveillance Monthly Report (MSMR). Volume 2, Number 3, March 1996

    DTIC Science & Technology

    1996-03-01

    300 mg q month and Prednisone 5mg qod (tapering dose) Editorial Comment Hansen’s Disease is a chronic infectious disease caused by Mycobacterium leprae ...4,450 new cases a year. Comparatively, Guam has 20 registered cases with 4 new cases reported per year. G.A. Hansen discovered M. leprae in 1873

  16. Eastman N. Jacobs

    NASA Technical Reports Server (NTRS)

    1945-01-01

    Sylvanus Albert Reed Award: Eastman N. Jacobs: In 1937, Eastman N. Jacobs, one of Langley's most adventurous researchers, received the Sylvanus Albert Reed Award for his contributions to the aerodynamic improvement of airfoils. Published in James R. Hansen, Engineer in Charge, NASA SP- 4305, p. 106.

  17. An Investigation of Collaborative Leadership

    DTIC Science & Technology

    2013-01-01

    Disiplined Collaboration ............................................................ 14 Figure 3: Positive Deviance Model...horizontally across other internal and external units and organizations. When we move to a more detailed definition of collaboration, we can further define...shape management approach, Hansen describes how the leader is at the intersection of the organization’s vertical internal efforts and the

  18. Jackknife Estimation of Sampling Variance of Ratio Estimators in Complex Samples: Bias and the Coefficient of Variation. Research Report. ETS RR-06-19

    ERIC Educational Resources Information Center

    Oranje, Andreas

    2006-01-01

    A multitude of methods has been proposed to estimate the sampling variance of ratio estimates in complex samples (Wolter, 1985). Hansen and Tepping (1985) studied some of those variance estimators and found that a high coefficient of variation (CV) of the denominator of a ratio estimate is indicative of a biased estimate of the standard error of a…

  19. Notes of a Progressive Educator from the Academy and the Classroom

    ERIC Educational Resources Information Center

    Semel, Susan F.

    2009-01-01

    This article presents a review of three chapters in "Part III, Section F: Inquiring into Curriculum" of "The SAGE Handbook of Curriculum and Instruction" (F. M. Connelly, M. F. He, J. I. Phillion, Eds.; Sage Publications, 2008). These chapters ["Reenvisioning the Progressive Tradition in Curriculum" (David T. Hansen,…

  20. Becoming Educultural: Collaborative Projects in the Arts

    ERIC Educational Resources Information Center

    Macdonald, Dianne

    2010-01-01

    Manurewa Intermediate students were given an experience only the arts can provide as they collaboratively researched, responded to and celebrated a school mural project. The mural project was initiated by Shane Hansen through the Principal Iain Taylor and coordinated by Dianne Macdonald, a Professional Learning Leader at Manurewa Intermediate…

  1. From Self-Organized to Extended Criticality

    DTIC Science & Technology

    2012-04-26

    Texas, Denton, TX, USA 2 Centro EXTREME, Scuola Superiore Sant’Anna, Pisa, Italy 3 Istituto di Fisiologia Clinica-CNR, Pisa, Italy 4 Department of Physics...Netherlands Klaus Linkenkaer-Hansen, Center for Neurogenomics and Cognitive Research, Netherlands *Correspondence: Paolo Allegrini , Istituto di Fisiologia

  2. Lifelong Learning: Policies, Practices, and Programs.

    ERIC Educational Resources Information Center

    Hatton, Michael J., Ed.

    The 26 articles in this book focus on lifelong learning policies, practices, and programs in 13 Asia Pacific countries. The following papers are included: "Half a Revolution: A Brief Survey of Lifelong Learning in New Zealand" (P. Methven and J. Hansen); "HRD in a Multicultural Workplace: The Need for Lifelong Learning" (M.…

  3. Improved group contribution parameter set for the application of solubility parameters to melt extrusion.

    PubMed

    Just, Susann; Sievert, Frank; Thommes, Markus; Breitkreutz, Jörg

    2013-11-01

    Hot-melt extrusion is gaining importance for the production of amorphous solid solutions; in parallel, predictive tools for estimating drug solubility in polymers are increasingly demanded. The Hansen solubility parameter (SP) approach is well acknowledged for its predictive power of the miscibility of liquids as well as the solubility of some amorphous solids in liquid solvents. By solely using the molecular structure, group contribution (GC) methods allow the calculation of Hansen SPs. The GC parameter sets available were derived from liquids and polymers which conflicts with the object of prediction, the solubility of solid drugs. The present study takes a step from the liquid based SPs toward their application to solid solutes. On the basis of published experimental Hansen SPs of solid drugs and excipients only, a new GC parameter set was developed. In comparison with established parameter sets by van Krevelen/Hoftyzer, Beerbower/Hansen, Breitkreutz and Stefanis/Panayiotou, the new GC parameter set provides the highest overall predictive power for solubility experiments (correlation coefficient r = -0.87 to -0.91) as well as for literature data on melt extrudates and casted films (r = -0.78 to -0.96).

  4. Proceedings of the Annual Meeting of the Association for Education in Journalism and Mass Communication (75th, Montreal, Quebec, Canada, August 5-8, 1992). More Miscellaneous Studies.

    ERIC Educational Resources Information Center

    Association for Education in Journalism and Mass Communication.

    The More Miscellaneous Studies section of the proceedings contains the following 34 papers: "The Louisville Courier-Journal's News Content after Purchase by Gannett" (Hansen and Coulson); "Reflection of Cultural Values in Advertising: A Comparative Analysis of Taiwan and U.S. Advertising" (Zandpour and Qian); "Sex,…

  5. How to design a good photoresist solvent package using solubility parameters and high-throughput research

    NASA Astrophysics Data System (ADS)

    Tate, Michael P.; Cutler, Charlotte; Sakillaris, Mike; Kaufman, Michael; Estelle, Thomas; Mohler, Carol; Tucker, Chris; Thackeray, Jim

    2014-03-01

    Understanding fundamental properties of photoresists and how interactions between photoresist components affect performance targets are crucial to the continued success of photoresists. More specifically, polymer solubility is critical to the overall performance capability of the photoresist formulation. While several theories describe polymer solvent solubility, the most common industrially applied method is Hansen's solubility parameters. Hansen's method, based on regular solution theory, describes a solute's ability to dissolve in a solvent or solvent blend using four physical properties determined experimentally through regression of solubility data in many known solvents. The four physical parameters are dispersion, polarity, hydrogen bonding, and radius of interaction. Using these parameters a relative cohesive energy difference (RED), which describes a polymer's likelihood to dissolve in a given solvent blend, may be calculated. Leveraging a high throughput workflow to prepare and analyze the thousands of samples necessary to calculate the Hansen's solubility parameters from many different methacrylate-based polymers, we compare the physical descriptors to reveal a large range of polarities and hydrogen bonding. Further, we find that Hansen's model correctly predicts the soluble/insoluble state of 3-component solvent blends where the dispersion, polar, hydrogen-bonding, and radius of interaction values were determined through regression of experimental values. These modeling capabilities have allowed for optimization of the photoresist solubility from initial blending through application providing valuable insights into the nature of photoresist.

  6. Organization Values. Symposium 10. [AHRD Conference, 2001].

    ERIC Educational Resources Information Center

    2001

    This document contains three papers on organizational values. "Understanding the Work Beliefs of Nonprofit Executives through Organizational Stories" (Ava S. Wilensky, Carol D. Hansen) reports on a study during which qualitative interviews featuring a story component established that nonprofit executives constitute a diffuse managerial…

  7. Prevention of back injuries and pain

    SciTech Connect

    Baptiste, B.

    1982-10-11

    Lawrence Livermore National Laboratory (LLNL), in conjunction with Hansen and Associates (San Mateo, CA), developed an employee education and training class in back care. In three years about 1500 LLNL employees have attended this class. According to accident statistics and employee questionnaires, the class has been effective in reducing back injury and pain.

  8. Celebrate Your Freedom! May 1, Law Day 1997.

    ERIC Educational Resources Information Center

    Michaud, Mike; And Others

    1997-01-01

    Presents seven brief articles on legal issues concerning young people. Addresses such topics as curfews, teen smoking, dress codes, and child labor. Some articles are student-written while others profile student activity. Student authors include Mike Michaud, Danny Rosen, Carrie Kendrick, and William Hansen. (MJP)

  9. Inner Subjective Experiences and Social Constructionism: A Response to Rudes and Guterman (2007)

    ERIC Educational Resources Information Center

    Hansen, James T.

    2010-01-01

    In an earlier article, the author argued that there had been a devaluation of inner subjective experiences by the counseling profession over the last several decades (J. T. Hansen, 2005). In their reply to this article, J. Rudes and J. T. Guterman (2007) advocated for a social constructionist position for the counseling profession. In the current…

  10. Narrating International and National Trends in US Science Education: An Autobiographical Approach Showcasing Dr. Robert Yager

    ERIC Educational Resources Information Center

    Verma, Geeta; Martin-Hansen, Lisa

    2009-01-01

    This biographical piece is based on a conversation involving Bob Yager, Geeta Verma, and Lisa Martin-Hansen which took place at the National Association for Research in Science Teaching (NARST) conference in March, 2008. The unique aspect of this autobiographical piece is that it highlights Dr. Yager's account about the emergence of the science…

  11. Pathfinders and Problem Solving: Comparative Effects of Two Cognitive-Behavioral Programs among Men and Women Offenders in Community and Prison

    ERIC Educational Resources Information Center

    Spiropoulos, Georgia V.; Spruance, Lisa; Van Voorhis, Patricia; Schmitt, Michelle M.

    2005-01-01

    The effects of "Problem Solving" (Taymans & Parese, 1998) are compared across small diversion and prison samples for men and women. A second program, "Pathfinders" (Hansen, 1993), was compared to the Problem Solving program among incarcerated women offenders to determine whether its focus upon empowerment and relationships enhanced the effects of…

  12. Franklin D. Roosevelt at Langley 1940

    NASA Technical Reports Server (NTRS)

    1940-01-01

    President Franklin D. Roosevelt visited Langley Field on 29 July 1940. View of President Franklin D. Roosevelt in a car inside a NACA hangar, two unidentified men stand behind the car, and the wing of a plane is visible in the background. Photograph published in Engineer in Charge: A History of the Langley Aeronautical Laboratory, 1917-1958 by James R. Hansen (page 147).

  13. 134. FORKS DIVERSION, HIGH LINE AND LOW LINE CANALS, TWIN ...

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

    134. FORKS DIVERSION, HIGH LINE AND LOW LINE CANALS, TWIN FALLS COUNTY, SOUTH OF HANSEN, IDAHO; VIEW OF LOW LINE AND POWER GATES, WEST VIEW. - Milner Dam & Main Canal: Twin Falls Canal Company, On Snake River, 11 miles West of city of Burley, Idaho, Twin Falls, Twin Falls County, ID

  14. Summary of Notifiable Diseases, United States. Volume 45, Number 53.

    DTIC Science & Technology

    1997-10-31

    States, 1996 (continued) Measles Meningo- coccal disease Mumps Pertussis Plague Polio - myelitis, Area Indigenous Imported* paralytic UNITED...disease Hansen disease (leprosy) Hantavirus pulmonary syndrome Hemolytic uremic syndrome, post-diarrheal Hepatitis A Hepatitis B Hepatitis, C/ non ...A, non -B HIV infection, pediatric Legionellosis Lyme disease Malaria Measles (Rubeola) Meningococcal disease Mumps Pertussis Plague

  15. Telehealth Systems: Considering Knowledge Management and ICT Issues

    DTIC Science & Technology

    2007-11-02

    Health Services Management, Vol.15, No.1, 1998, pp 3. [25] I. Nonaka. ’The Knowledge-Creating Company’, Harvard Business Review , Vol. 69, Issue: 6, 1991...1,2000, pp. 17-21. [29] M. Hansen, N. Nohria, and T. Tierney , “What’s your strategy for managing knowledge?”, Harvard Business Review , Vol. 77

  16. 77 FR 62498 - Advisory Council on Dependents' Education; Meeting Cancellation Notice and Open Meeting Notice

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-10-15

    ... Federal Officer (DFO) for the Advisory Council on Dependents' Education, Mr. Joel K. Hansen, 4800 Mark... of the Secretary Advisory Council on Dependents' Education; Meeting Cancellation Notice and Open Meeting Notice AGENCY: Department of Defense Education Activity (DoDEA), DoD. ACTION: Meeting...

  17. 42 CFR 32.1 - Meaning of terms.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... PUBLIC HEALTH SERVICE, DEPARTMENT OF HEALTH AND HUMAN SERVICES MEDICAL CARE AND EXAMINATIONS MEDICAL CARE FOR PERSONS WITH HANSEN'S DISEASE AND OTHER PERSONS IN EMERGENCIES Definitions § 32.1 Meaning of terms... Public Health Service Act, approved July 1, 1944, 58 Stat. 682, as amended; (b) Service means the...

  18. 42 CFR 32.111 - Conditions and extent of treatment; charges.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... Section 32.111 Public Health PUBLIC HEALTH SERVICE, DEPARTMENT OF HEALTH AND HUMAN SERVICES MEDICAL CARE AND EXAMINATIONS MEDICAL CARE FOR PERSONS WITH HANSEN'S DISEASE AND OTHER PERSONS IN EMERGENCIES...) Persons not entitled to treatment by the Service may be provided temporary care and treatment at...

  19. 42 CFR 32.88 - Examinations and treatment.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 42 Public Health 1 2012-10-01 2012-10-01 false Examinations and treatment. 32.88 Section 32.88 Public Health PUBLIC HEALTH SERVICE, DEPARTMENT OF HEALTH AND HUMAN SERVICES MEDICAL CARE AND EXAMINATIONS MEDICAL CARE FOR PERSONS WITH HANSEN'S DISEASE AND OTHER PERSONS IN EMERGENCIES Persons...

  20. 42 CFR 32.1 - Meaning of terms.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... PUBLIC HEALTH SERVICE, DEPARTMENT OF HEALTH AND HUMAN SERVICES MEDICAL CARE AND EXAMINATIONS MEDICAL CARE FOR PERSONS WITH HANSEN'S DISEASE AND OTHER PERSONS IN EMERGENCIES Definitions § 32.1 Meaning of terms... Public Health Service Act, approved July 1, 1944, 58 Stat. 682, as amended; (b) Service means the...

  1. 42 CFR 32.6 - Persons eligible.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... PUBLIC HEALTH SERVICE, DEPARTMENT OF HEALTH AND HUMAN SERVICES MEDICAL CARE AND EXAMINATIONS MEDICAL CARE FOR PERSONS WITH HANSEN'S DISEASE AND OTHER PERSONS IN EMERGENCIES Beneficiaries § 32.6 Persons... treatment and care in cases of emergency. (b) Separate regulations govern: (1) The medical care of...

  2. 42 CFR 32.6 - Persons eligible.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... PUBLIC HEALTH SERVICE, DEPARTMENT OF HEALTH AND HUMAN SERVICES MEDICAL CARE AND EXAMINATIONS MEDICAL CARE FOR PERSONS WITH HANSEN'S DISEASE AND OTHER PERSONS IN EMERGENCIES Beneficiaries § 32.6 Persons... treatment and care in cases of emergency. (b) Separate regulations govern: (1) The medical care of...

  3. 42 CFR 32.1 - Meaning of terms.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... PUBLIC HEALTH SERVICE, DEPARTMENT OF HEALTH AND HUMAN SERVICES MEDICAL CARE AND EXAMINATIONS MEDICAL CARE FOR PERSONS WITH HANSEN'S DISEASE AND OTHER PERSONS IN EMERGENCIES Definitions § 32.1 Meaning of terms... Public Health Service Act, approved July 1, 1944, 58 Stat. 682, as amended; (b) Service means the...

  4. 42 CFR 32.1 - Meaning of terms.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... PUBLIC HEALTH SERVICE, DEPARTMENT OF HEALTH AND HUMAN SERVICES MEDICAL CARE AND EXAMINATIONS MEDICAL CARE FOR PERSONS WITH HANSEN'S DISEASE AND OTHER PERSONS IN EMERGENCIES Definitions § 32.1 Meaning of terms... Public Health Service Act, approved July 1, 1944, 58 Stat. 682, as amended; (b) Service means the...

  5. 42 CFR 32.86 - Admissions to Service facilities.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 42 Public Health 1 2013-10-01 2013-10-01 false Admissions to Service facilities. 32.86 Section 32.86 Public Health PUBLIC HEALTH SERVICE, DEPARTMENT OF HEALTH AND HUMAN SERVICES MEDICAL CARE AND EXAMINATIONS MEDICAL CARE FOR PERSONS WITH HANSEN'S DISEASE AND OTHER PERSONS IN EMERGENCIES Persons...

  6. 42 CFR 32.87 - Confirmation of diagnosis.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... Public Health PUBLIC HEALTH SERVICE, DEPARTMENT OF HEALTH AND HUMAN SERVICES MEDICAL CARE AND EXAMINATIONS MEDICAL CARE FOR PERSONS WITH HANSEN'S DISEASE AND OTHER PERSONS IN EMERGENCIES Persons with... of a patient at the Service hospital at Carville, Louisiana, or at another hospital of the...

  7. 42 CFR 32.111 - Conditions and extent of treatment; charges.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... Section 32.111 Public Health PUBLIC HEALTH SERVICE, DEPARTMENT OF HEALTH AND HUMAN SERVICES MEDICAL CARE AND EXAMINATIONS MEDICAL CARE FOR PERSONS WITH HANSEN'S DISEASE AND OTHER PERSONS IN EMERGENCIES...) Persons not entitled to treatment by the Service may be provided temporary care and treatment at...

  8. 42 CFR 32.111 - Conditions and extent of treatment; charges.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... Section 32.111 Public Health PUBLIC HEALTH SERVICE, DEPARTMENT OF HEALTH AND HUMAN SERVICES MEDICAL CARE AND EXAMINATIONS MEDICAL CARE FOR PERSONS WITH HANSEN'S DISEASE AND OTHER PERSONS IN EMERGENCIES...) Persons not entitled to treatment by the Service may be provided temporary care and treatment at...

  9. 42 CFR 32.86 - Admissions to Service facilities.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 42 Public Health 1 2011-10-01 2011-10-01 false Admissions to Service facilities. 32.86 Section 32.86 Public Health PUBLIC HEALTH SERVICE, DEPARTMENT OF HEALTH AND HUMAN SERVICES MEDICAL CARE AND EXAMINATIONS MEDICAL CARE FOR PERSONS WITH HANSEN'S DISEASE AND OTHER PERSONS IN EMERGENCIES Persons...

  10. 42 CFR 32.87 - Confirmation of diagnosis.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... Public Health PUBLIC HEALTH SERVICE, DEPARTMENT OF HEALTH AND HUMAN SERVICES MEDICAL CARE AND EXAMINATIONS MEDICAL CARE FOR PERSONS WITH HANSEN'S DISEASE AND OTHER PERSONS IN EMERGENCIES Persons with... of a patient at the Service hospital at Carville, Louisiana, or at another hospital of the...

  11. 42 CFR 32.111 - Conditions and extent of treatment; charges.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... Section 32.111 Public Health PUBLIC HEALTH SERVICE, DEPARTMENT OF HEALTH AND HUMAN SERVICES MEDICAL CARE AND EXAMINATIONS MEDICAL CARE FOR PERSONS WITH HANSEN'S DISEASE AND OTHER PERSONS IN EMERGENCIES...) Persons not entitled to treatment by the Service may be provided temporary care and treatment at...

  12. 42 CFR 32.111 - Conditions and extent of treatment; charges.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... Section 32.111 Public Health PUBLIC HEALTH SERVICE, DEPARTMENT OF HEALTH AND HUMAN SERVICES MEDICAL CARE AND EXAMINATIONS MEDICAL CARE FOR PERSONS WITH HANSEN'S DISEASE AND OTHER PERSONS IN EMERGENCIES...) Persons not entitled to treatment by the Service may be provided temporary care and treatment at...

  13. 42 CFR 32.6 - Persons eligible.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... PUBLIC HEALTH SERVICE, DEPARTMENT OF HEALTH AND HUMAN SERVICES MEDICAL CARE AND EXAMINATIONS MEDICAL CARE FOR PERSONS WITH HANSEN'S DISEASE AND OTHER PERSONS IN EMERGENCIES Beneficiaries § 32.6 Persons... treatment and care in cases of emergency. (b) Separate regulations govern: (1) The medical care of...

  14. 42 CFR 32.1 - Meaning of terms.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... PUBLIC HEALTH SERVICE, DEPARTMENT OF HEALTH AND HUMAN SERVICES MEDICAL CARE AND EXAMINATIONS MEDICAL CARE FOR PERSONS WITH HANSEN'S DISEASE AND OTHER PERSONS IN EMERGENCIES Definitions § 32.1 Meaning of terms... Public Health Service Act, approved July 1, 1944, 58 Stat. 682, as amended; (b) Service means the...

  15. 42 CFR 32.86 - Admissions to Service facilities.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 42 Public Health 1 2010-10-01 2010-10-01 false Admissions to Service facilities. 32.86 Section 32.86 Public Health PUBLIC HEALTH SERVICE, DEPARTMENT OF HEALTH AND HUMAN SERVICES MEDICAL CARE AND EXAMINATIONS MEDICAL CARE FOR PERSONS WITH HANSEN'S DISEASE AND OTHER PERSONS IN EMERGENCIES Persons...

  16. 42 CFR 32.88 - Examinations and treatment.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 42 Public Health 1 2013-10-01 2013-10-01 false Examinations and treatment. 32.88 Section 32.88 Public Health PUBLIC HEALTH SERVICE, DEPARTMENT OF HEALTH AND HUMAN SERVICES MEDICAL CARE AND EXAMINATIONS MEDICAL CARE FOR PERSONS WITH HANSEN'S DISEASE AND OTHER PERSONS IN EMERGENCIES Persons...

  17. 42 CFR 32.87 - Confirmation of diagnosis.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... Public Health PUBLIC HEALTH SERVICE, DEPARTMENT OF HEALTH AND HUMAN SERVICES MEDICAL CARE AND EXAMINATIONS MEDICAL CARE FOR PERSONS WITH HANSEN'S DISEASE AND OTHER PERSONS IN EMERGENCIES Persons with... of a patient at the Service hospital at Carville, Louisiana, or at another hospital of the...

  18. 42 CFR 32.6 - Persons eligible.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... PUBLIC HEALTH SERVICE, DEPARTMENT OF HEALTH AND HUMAN SERVICES MEDICAL CARE AND EXAMINATIONS MEDICAL CARE FOR PERSONS WITH HANSEN'S DISEASE AND OTHER PERSONS IN EMERGENCIES Beneficiaries § 32.6 Persons... treatment and care in cases of emergency. (b) Separate regulations govern: (1) The medical care of...

  19. 42 CFR 32.86 - Admissions to Service facilities.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 42 Public Health 1 2014-10-01 2014-10-01 false Admissions to Service facilities. 32.86 Section 32.86 Public Health PUBLIC HEALTH SERVICE, DEPARTMENT OF HEALTH AND HUMAN SERVICES MEDICAL CARE AND EXAMINATIONS MEDICAL CARE FOR PERSONS WITH HANSEN'S DISEASE AND OTHER PERSONS IN EMERGENCIES Persons...

  20. 42 CFR 32.88 - Examinations and treatment.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 42 Public Health 1 2011-10-01 2011-10-01 false Examinations and treatment. 32.88 Section 32.88 Public Health PUBLIC HEALTH SERVICE, DEPARTMENT OF HEALTH AND HUMAN SERVICES MEDICAL CARE AND EXAMINATIONS MEDICAL CARE FOR PERSONS WITH HANSEN'S DISEASE AND OTHER PERSONS IN EMERGENCIES Persons...

  1. 42 CFR 32.87 - Confirmation of diagnosis.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... Public Health PUBLIC HEALTH SERVICE, DEPARTMENT OF HEALTH AND HUMAN SERVICES MEDICAL CARE AND EXAMINATIONS MEDICAL CARE FOR PERSONS WITH HANSEN'S DISEASE AND OTHER PERSONS IN EMERGENCIES Persons with... of a patient at the Service hospital at Carville, Louisiana, or at another hospital of the...

  2. 42 CFR 32.86 - Admissions to Service facilities.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 42 Public Health 1 2012-10-01 2012-10-01 false Admissions to Service facilities. 32.86 Section 32.86 Public Health PUBLIC HEALTH SERVICE, DEPARTMENT OF HEALTH AND HUMAN SERVICES MEDICAL CARE AND EXAMINATIONS MEDICAL CARE FOR PERSONS WITH HANSEN'S DISEASE AND OTHER PERSONS IN EMERGENCIES Persons...

  3. Pearl I. Young

    NASA Technical Reports Server (NTRS)

    1929-01-01

    Pearl I. Young, the NACA's first female professional, at work in the instrument research laboratory circa 1929. Photograph published in Winds of Change, 75th Anniversary NASA publication, by James Schultz, page 47. Also published in Engineer in Charge: A History of the Langley Aeronautical Laboratory, 1917-1958 by James R. Hansen, (page 209).

  4. Collaborative Research in Allied Health. Proceedings of Collaborative Research in Allied Health Symposium (Columbus, Ohio, September 20, 1985).

    ERIC Educational Resources Information Center

    Schiller, M. Rosita, Ed.; And Others

    The following papers are included: "Consortia and Collaborative Research: Getting Started" (Hansen); "Coordination of the Health Care System in the State of Michigan" (Burian, Boyden, Herbert); "Health Promotion and Disease Prevention in Allied Health" (Doiron, Douglas); "Interprofessional Collaboration in the Analysis of Public Policy" (Dunn);…

  5. 132. FORKS DIVERSION, HIGH LINE AND LOW LINE CANALS, TWIN ...

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

    132. FORKS DIVERSION, HIGH LINE AND LOW LINE CANALS, TWIN FALLS COUNTY, SOUTH OF HANSEN, IDAHO; POWER GATES FOR HYDRO-ELECTRIC. - Milner Dam & Main Canal: Twin Falls Canal Company, On Snake River, 11 miles West of city of Burley, Idaho, Twin Falls, Twin Falls County, ID

  6. Vienna in the Early Twentieth Century: The Cultural Response to Modernization. Curriculum Units, NEH Institute, Summer 1993.

    ERIC Educational Resources Information Center

    Oregon Univ., Eugene.

    These curriculum units were developed by participants in the National Endowment for the Humanities seminar at the University of Oregon in 1993. The lessons include: (1) "Schule, Freunde, Liebe: Wien um die Jahrhundertwende (School, Friends, Love: Vienna at the Turn of the Century)" (Linda Hansen; Glenn Tetterton-Opheim); (2) "Kultur…

  7. Nonequilibrium boundary layer at a stagnation point for a hydrogen-helium stream over ablating graphite

    NASA Technical Reports Server (NTRS)

    Liu, T.-M.; Davy, W. C.

    1974-01-01

    The nonequilibrium axisymmetric stagnation point boundary layer over an ablating graphite surface is considered. The external stream is a high temperature mixture of hydrogen and helium. Variable thermodynamic and transport properties are assumed. Lennard-Jones potential model is used to calculate the transport coefficients of each species. Although the mixture rules for viscosity of the gas mixture are used, the weighting functions are more sophisticated than those commonly employed. For the conductivity of the mixture, generalized Wassiljewa coefficients are used. Seven species with 28 dissociation/recombination reactions are considered. Hansen's model for the dissociation rate constants is employed. The recombination rate constants are obtained by invoking detailed balance principles assisted by the JANAF thermodynamic data and the Hansen-Pearson thermodynamic data for C3.

  8. Responding to the Need for Better Global Temperature Data

    NASA Astrophysics Data System (ADS)

    Lawrimore, Jay; Rennie, Jared; Thorne, Peter

    2013-02-01

    Since the 1990s a number of national institutions have developed and maintained global data sets of land surface air temperature [Peterson and Vose, 1997; Hansen et al., 2010; Jones et al., 2012; Menne et al., 2012]. These efforts have led to great advances in understanding how Earth's temperatures have varied and changed. They also serve as essential sources of a fundamental climate variable, which is crucial for interpreting climate evolution in response to the interplay of radiative forcing, climate feedbacks, and ocean heating [e.g., Hansen et al., 2011]. However, more can be done to improve global surface temperature collections while enhancing data management, access, and public transparency with which data are collected, processed, and converted into climate information. To address these needs, the International Surface Temperature Initiative (ISTI), which began through a partnership of scientists from around the world [Thorne et al., 2011], released its first beta version of a global land surface databank in October 2012.

  9. Developing a computational model of human hand kinetics using AVS

    SciTech Connect

    Abramowitz, Mark S.

    1996-05-01

    As part of an ongoing effort to develop a finite element model of the human hand at the Institute for Scientific Computing Research (ISCR), this project extended existing computational tools for analyzing and visualizing hand kinetics. These tools employ a commercial, scientific visualization package called AVS. FORTRAN and C code, originally written by David Giurintano of the Gillis W. Long Hansen`s Disease Center, was ported to a different computing platform, debugged, and documented. Usability features were added and the code was made more modular and readable. When the code is used to visualize bone movement and tendon paths for the thumb, graphical output is consistent with expected results. However, numerical values for forces and moments at the thumb joints do not yet appear to be accurate enough to be included in ISCR`s finite element model. Future work includes debugging the parts of the code that calculate forces and moments and verifying the correctness of these values.

  10. Reaction of Prunus Rootstocks to Meloidogyne incognita and M. arenaria in Spain

    PubMed Central

    Marull, J.; Pinochet, J.; Verdejo-Lucas, S.; Soler, A.

    1991-01-01

    Prunus rootstocks were evaluated for their reaction to Meloidogyne incognita and M. arenaria. Most rootstocks were peach-almond hybrids of Spanish origin. In one experiment three selections of Garfi x Nemared (G x N) and Hansen-5 were highly resistant to M. incognita, but four other rootstocks were susceptible showing high galling indices and population increases. In two experiments with M. arenaria, the hybrid selections G x N nos. 1 and 9 were immune, GF-305 and Hansen-5 were resistant, but nine other rootstocks expressed various degrees of susceptibility. All Spanish rootstocks were susceptible to both Meloidogyne species except for the three G x N selections. The root-knot nematode resistant peach Nemared used as a male parent with Garfi was found to transmit a high degree of resistance to M. incognita and immunity to M. arenaria. Progenies of P. davidiana (Ga x D no. 3), a known source of resistance to root-knot nematodes, were susceptible. PMID:19283164

  11. An explanation of dispersion states of single-walled carbon nanotubes in solvents and aqueous surfactant solutions using solubility parameters.

    PubMed

    Ham, Hyeong Taek; Choi, Yeong Suk; Chung, In Jae

    2005-06-01

    Dispersions of single-walled carbon nanotubes in various solvents and aqueous surfactant emulsions were investigated to correlate the degree of dispersion state with Hansen solubility parameters (deltat2=deltad2+deltap2+deltah2). It was found that the nanotubes were dispersed or suspended very well in the solvents with certain dispersive component (deltad) values. They were precipitated in the solvents with high polar component (deltap) values or hydrogen-bonding component (deltah) values. The solvents in the dispersed group occupied a certain region in a 3-dimensional space of three components. The surfactants with a lipophilic group equal to and longer than decyl, containing 9 methylene groups and 1 methyl group, contributed to the dispersion of nanotubes in water. The surfactants in the dispersed group had a lower limit in the dispersive component (deltad) of the Hansen parameter.

  12. Controlled formation of polymer nanocapsules with high diffusion-barrier properties and prediction of encapsulation efficiency.

    PubMed

    Hofmeister, Ines; Landfester, Katharina; Taden, Andreas

    2015-01-02

    Polymer nanocapsules with high diffusion-barrier performance were designed following simple thermodynamic considerations. Hindered diffusion of the enclosed material leads to high encapsulation efficiencies (EEs), which was demonstrated based on the encapsulation of highly volatile compounds of different chemical natures. Low interactions between core and shell materials are key factors to achieve phase separation and a high diffusion barrier of the resulting polymeric shell. These interactions can be characterized and quantified using the Hansen solubility parameters. A systematic study of our copolymer system revealed a linear relationship between the Hansen parameter for hydrogen bonding (δh ) and encapsulation efficiencies which enables the prediction of encapsulated amounts for any material. Furthermore EEs of poorly encapsulated materials can be increased by mixing them with a mediator compound to give lower overall δh values.

  13. Measurement of multicomponent solubility parameters for graphene facilitates solvent discovery.

    PubMed

    Hernandez, Yenny; Lotya, Mustafa; Rickard, David; Bergin, Shane D; Coleman, Jonathan N

    2010-03-02

    We have measured the dispersibility of graphene in 40 solvents, with 28 of them previously unreported. We have shown that good solvents for graphene are characterized by a Hildebrand solubility parameter of delta(T) approximately 23 MPa(1/2) and Hansen solubility parameters of delta(D) approximately 18 MPa(1/2), delta(P) approximately 9.3 MPa(1/2), and delta(H) approximately 7.7 MPa(1/2). The dispersibility is smaller for solvents with Hansen parameters further from these values. We have used transmission electron microscopy (TEM) analysis to show that the graphene is well exfoliated in all cases. Even in relatively poor solvents, >63% of observed flakes have <5 layers.

  14. Development of Sub-Ischial Prosthetic Sockets with Vacuum-Assisted Suspension for Highly Active Persons with Transfemoral Amputations

    DTIC Science & Technology

    2013-10-01

    Caldwell R , Hansen A, Fatone S (in press) Methods for Characterization of Mechanical and Electrical Prosthetic Vacuum Pumps. Journal of Rehabilitation...Research and Development, 50(8). Appendix E Komolafe O, Caldwell R , Fatone S (prepared) Finite Element Analysis of Rigid Frame Designs for...Design, in The Academy Today 2007. p. A7-9. 4 Fairley , M., ’Hanging Tight’: Elevated Vacuum Suspension Systems Step Forward, in The O&P Edge March

  15. Development of Subischial Prosthetic Sockets with Vacuum-Assisted Suspension for Highly Active Persons with Transfemoral Amputations

    DTIC Science & Technology

    2014-10-01

    disseminating our research through publications and presentations. 19 REPORTABLE OUTCOMES Pu bl ic at io ns Komolafe O, Wood S, Caldwell R ...Development, 50(8):1069–78. PMID: 24458892. Appendix E Komolafe O, Caldwell R , Hansen A, Fatone S (submitted) Finite Element Analysis of Rigid...Frame Designs for Transfemoral Prosthetic Sockets. Journal of Rehabilitation Research and Development. Appendix A Robillard B, Komolafe O, Caldwell R

  16. Charles Lindburgh and Fred Weick

    NASA Technical Reports Server (NTRS)

    1990-01-01

    'In early 1930, Charles Lindburgh was pruning his new Lockheed Sirius for an attempt to break the cross-country record from Los Angeles to New York.' Quote from the book Engineer In Charge by James R. Hansen (page 52). This photograph is a copy and was originally photographed the early 1930's: NACA engineer Fred Weick is shown in the rear cockpit. Lindbergh in front. Tom Hamilton is standing.

  17. An Evaluation of Industrial Funding for Marine Corps Non-Deployable ADP Assets.

    DTIC Science & Technology

    1985-03-01

    Secretary of Defense POM Program Objective Memorandum RASC Regional Automated Services Center RESCU Resource Cost and Utilization System RJE Remote Job...terminal located in Camp Hansen, Okinawa would involve use of equipment and resources owned by RASC , Okinawa; RASC , Hawaii; RASC , Camp Pendleton; and...48. Martin , James, Design and Strategy for Distributed Data Processing, p. 5, Prentice-Hall, Inc., Englewood Cliffs, New Jersey, 1981. 49. Schect

  18. Primary and Secondary Vestibular Connections in the Brain Stem and Cerebellum: An Axoplasmic Transport Study in the Monkey and Cat

    DTIC Science & Technology

    1983-08-25

    recurrent col laterals are responsible for th is e f f ec t . Golgi studies have not demonstrated local interneurons in the VN (Lorente de Nt), 33a...and nuclei evoke EPSPs in the FN with monosynaptic latencies (Furuya et al., 󈨏). Responses recorded in the FN upon stim- ulation of the VN were...synapses with a- and Y-motor neurons, as well as Interneurons (Nyberg-Hansen and Mascitti, 󈨄 Erulkar et al., 󈨆 Lund and Pompeiano, 󈨈

  19. Minerals Strategic Impact on Regional Stability in Africa

    DTIC Science & Technology

    2007-03-30

    USAWC STRATEGY RESEARCH PROJECT MINERALS STRATEGIC IMPACT ON REGIONAL STABILITY IN AFRICA by Colonel Lee E...3. DATES COVERED 00-00-2006 to 00-00-2007 4. TITLE AND SUBTITLE Minerals Strategic Impact on Regional Stability in Africa 5a. CONTRACT NUMBER...Lee E. Hansen TITLE: Minerals Strategic Impact on Regional Stability in Africa FORMAT: Strategy Research Project DATE: 30 March 2007

  20. Retirement Choice: 2010

    DTIC Science & Technology

    2010-03-01

    Retirement Choice: 2010 Aline Quester • Lewis G. Lee • Anita Hattiangadi • Robert Shuford CRM D0022180.A1/Final March 2010 Report Documentation Page...824-2123. Copyright  2010 CNA Approved for distribution: March 2010 Anita Hattiangadi Marine Corps Manpower Team Resource Analysis Division Contents...several CNA col- leagues: Gerald Cox, Donald Cymrot, Michael Hansen, and Ann Par- cell. Kathleen Utgoff (former Director of the Pension Benefit

  1. Radiation Chemistry of Potential Europa Plumes

    NASA Astrophysics Data System (ADS)

    Gudipati, M. S.; Henderson, B. L.

    2014-12-01

    Recent detection of atomic hydrogen and atomic oxygen and their correlation to potential water plumes on Europa [Roth, Saur et al. 2014] invoked significant interest in further understanding of these potential/putative plumes on Europa. Unlike on Enceladus, Europa receives significant amount of electron and particle radiation. If the plumes come from trailing hemisphere and in the high radiation flux regions, then it is expected that the plume molecules be subjected to radiation processing. Our interest is to understand to what extent such radiation alterations occur and how they can be correlated to the plume original composition, whether organic or inorganic in nature. We will present laboratory studies [Henderson and Gudipati 2014] involving pulsed infrared laser ablation of ice that generates plumes similar to those observed on Enceladus [Hansen, Esposito et al. 2006; Hansen, Shemansky et al. 2011] and expected to be similar on Europa as a starting point; demonstrating the applicability of laser ablation to simulate plumes of Europa and Enceladus. We will present results from electron irradiation of these plumes to determine how organic and inorganic composition is altered due to radiation. Acknowledgments:This research was enabled through partial funding from NASA funding through Planetary Atmospheres, and the Europa Clipper Pre-Project. B.L.H. acknowledges funding from the NASA Postdoctoral Program for an NPP fellowship. Hansen, C. J., L. Esposito, et al. (2006). "Enceladus' water vapor plume." Science 311(5766): 1422-1425. Hansen, C. J., D. E. Shemansky, et al. (2011). "The composition and structure of the Enceladus plume." Geophysical Research Letters 38. Henderson, B. L. and M. S. Gudipati (2014). "Plume Composition and Evolution in Multicomponent Ices Using Resonant Two-Step Laser Ablation and Ionization Mass Spectrometry." The Journal of Physical Chemistry A 118(29): 5454-5463. Roth, L., J. Saur, et al. (2014). "Transient Water Vapor at Europa's South

  2. Advanced Studies of Integrable Systems.

    DTIC Science & Technology

    1986-12-18

    Fluctuations in Magnetized Plasmas (Phys. Fluids 27, 1169-75 (1984)] (coauthored with S.N. Antani) The nonlinear interactions of whistler waves with density... Dynamica Problems in Soliton Systems, pp 12-22. ed. S. Takeno, Springer-Verlag, NY (1985)]. S 11. Forced Integrable Systems - An Overview, D. J. Kaup...Kaup, P.J. Hansen, S. Roy Choudhury and Gary E. Thomas (accepted for publication in Phys. Fluids ). A singular perturbation method is used to solve this

  3. Maintaining Realistic Uncertainty in Model and Forecast

    DTIC Science & Technology

    1999-09-30

    Maintaining Realistic Uncertainty in Model and Forecast Leonard Smith Pembroke College Oxford University St Aldates Oxford OX1 3LB England phone... Oxford University ,Pembroke College,St Aldates,Oxford OX1 3LB England, 8. PERFORMING ORGANIZATION REPORT NUMBER 9. SPONSORING/MONITORING AGENCY NAME(S...in my group. REFERENCES Clarke, L. (1999) Rogue Thermocouple Detection. MSc Thesis, Mathematical Institute, Oxford University . Hansen J. and L. A

  4. Systems Thinking: A Foundational Art for Strategic Leaders

    DTIC Science & Technology

    2011-03-15

    problems were first proposed in 1973 by urban planners Horst W.J. Rittel and Melvin M Webber of the University of California. The concept was...furthered by Jeff Conklin in his book Dialogue Mapping: Building Shared Understanding of Wicked Problems. Horst W.J. Rittel and Melvin M. Webber...Understanding of Wicked Problems (CogNexus Institute, 2006), 9.hansen 21 Rittel and Webber, ―General Theory of Planning,‖ 162. 22 Horn and Weber

  5. Agricultural Manpower Shortage in World War II: Analysis of a Historical Operational Environment

    DTIC Science & Technology

    2012-12-14

    With insecticides not yet available to help control the plagues and prevent their recurrence, damage peaked in 1934 and again in 1936. As the...Hansen 2002, 101). The water would then be stored in the ground and remain available during times of drought when the dryness of the upper levels of soil...would naturally draw the water from the lower levels to the surface. The more cultivation, then, the more water stored in the soil and the less

  6. An alternative scheme to find glass state solutions using integral equation theory for the pair structure

    NASA Astrophysics Data System (ADS)

    Bomont, Jean-Marc; Pastore, Giorgio

    2015-09-01

    We propose and discuss a straightforward search protocol for the glass-like solutions of the integral equations of the two-replica approach to the random first-order transition theory of the liquid-glass transition. The new numerical strategy supplements those recently introduced by Jean-Pierre Hansen and ourselves. A few results for inverse power (1/r12) fluid are discussed and critically compared with results from other approaches.

  7. The Role of Salinity on the Dynamics of the Arabian Sea Mini Warm Pool

    DTIC Science & Technology

    2012-09-01

    velocity and H is the Heaviside unit function [= 0 if {We + dh/dt < 0 , =1 if (We + dh/dt > 0 ]. By this, only the entrainment (positive) velocity is consid...2009]. [n] Following Swenson and Hansen [1999] and Kurian and Vinayachandran [2007], the mixed layer heat budget can be written as 8T dt 0 ...WARM POOL C09002 20 10 0 20 10 0 20 10 0 20 10 60 70 80 90 100 70 80 90 100 70 80

  8. Extending Word Highlighting in Multiparticipant Chat

    DTIC Science & Technology

    2013-05-01

    un- supervised learners (Bingham, Kabán, and Girolami 2003; Kolenda, Hansen, and Larsen 2001). The difference be- tween these approaches and what we... Learner (UpdateGraph) Unlabeled Data U (from chat logs) GWRH US Ws W (Highlighted) Message m ′ Related Words R, W Message m Graph G Figure 3: GWRH’s...see that in these top ten words, com- mon English words are removed despite their frequent ap- pearance. This is desirable since it allows GWRH to

  9. Test Pilots with P-47 Thunderbolt Fighter

    NASA Technical Reports Server (NTRS)

    1945-01-01

    Langley test pilots (from left) Mel Gough, Herb Hoover, Jack Reeder, Steve Cavallo and Bill Gray stand in front of a P-47 Thunderbolt Fighter in this 1945 photo. Photograph published in Winds of Change, 75th Anniversary NASA publication, by James Schultz (page 44). Also published in Engineer in Charge: A History of the Langley Aeronautical Laboratory, 1917-1958 by James R. Hansen (page 498).

  10. Proceedings of the Anniversary Symposium (40th) of the Joint Services Electronics Program (JSEP) Held in Washington, D.C. on September 25, 1986.

    DTIC Science & Technology

    1987-01-01

    McKee for their work entitled "Finding the Edges of the Surfaces of Three Dimensional Curved Objects by Computer." From the JSEP laboratory at Texas...Hansen had worked at Sperry during the war largely on microwave problems, radar, and active and passive devices, and was one of the world’s greatest...in in- tegrated circuits. Component research has evolved into an activity in computer aided design (CAD) of integrated cir- cuitry, an area that

  11. Sensitivity Analysis of a Mesoscale Moisture Model.

    DTIC Science & Technology

    1981-03-01

    Physical Enviroment ," ASL-TR-0018, September 1978. 90. Gomez, Richard G., "Effectiveness Studies of the CBU-88/B Bomb, Cluster, Smoke Weapon" (U...Using the Doubling Technique," ASL-TR-0020, November, 1978. 92. Lindberg, James D. et al., "Measured Effects of Battlefield Dust and Smoke on Visible...Pena, and Frank V. Hansen, "KWIK: An Algorithm for Calculating Munition Expenditures for Smoke Screening/Obscuration in Tac- tical Situations," ASL-TR

  12. Simulating Pirate Behavior to Exploit Environmental Information

    DTIC Science & Technology

    2010-12-01

    variables in our experiment: • The maximum root mean square cell-by-cell difference (RMSE) between each design point and all other design points...RMSE especially penalizes large errors. • The cell-wise maximum difference (MaxDiff) in pirate density between each design point and all other design...applicable in future work include: 1332 Esher, Hall, Hansen, Regnier, Sanchez and Singham • Cell-by-cell differences in mean relative entropy

  13. Government Contractors and Sticky SGA Costs

    DTIC Science & Technology

    2015-05-01

    Government Contractors and Sticky SGA Costs by Stephen C. Hansen Naval Postgraduate School These discussion comments reflect the private...2015 to 00-00-2015 4. TITLE AND SUBTITLE Government Contractors and Sticky SGA Costs 5a. CONTRACT NUMBER 5b. GRANT NUMBER 5c. PROGRAM ELEMENT... contractors . Let Fseg = 1 if a company is a Federal Focus Firm. l ( SGAit ) L ( Revenueit ) og ’ =a0+a1 og ’ SGAi,t-1 Revenuei,t- 1 ( Revenue· t

  14. The Rise and Fall of Dyna-Soar: A History of Air Force Hypersonic R&D, 1944--1963.

    DTIC Science & Technology

    1995-08-01

    OF AIR FORCE HYPERSONIC R&D, 1944-1963 Roy Franklin Houchin II Certificate of Approval: William F . Trimble J/ s R Hansen, Chair Professor Professor...Terry Lee (Cardonell) Houc’hin, daughter of Leroy and Arlene Cardoncll,. He has a daughter, Lee Ann. and a son. Roy F .. Ill. DISSERTATION ABSTRACT THE...sponsorship of the Office of Air Force History. A very special thanks to Dr. Richard H. Kohn, Dr. Richard P. Hallion, the late Colonel John F . Shiner

  15. Space Station - early

    NASA Technical Reports Server (NTRS)

    2002-01-01

    'North American selected this space station design in 1962 for final systems analysis. Incorporating all the advantages of a wheel configuration, it had rigid cylindrical modules arranged in a hexagonal shape with three rigid telescoping spokes. This configuration eliminated the need for exposed flexible fabric.' Published in James R. Hansen, Spaceflight Revolution: NASA Langley Research Center From Sputnik to Apollo, NASA SP-4308, p. 284.

  16. Atlas of North Atlantic-Indian Ocean Monthly Mean Temperatures and Mean Salinities of the Surface Layer.

    DTIC Science & Technology

    1979-01-01

    tributed so greatly to the knowledge of these subjects, also add- When Fridtjof Nansen developed the reversing water bottli ed many details hut did not...mare -sojahistat- a-x- xI;innt Fi-ra6 aendable hathythermograph.Just as the standard o-eanoagrapahic- racal~ -’- "t the i \\. instruments, the Nansen ...worked well, but the results were higher than those obtained by Helland-Hansen and Nansen 11926) published their observa- the impiroperly corrected Miller

  17. Evaluation of Nanocomposites as Lightweight Electronic Enclosures for Satellites’ Applications

    DTIC Science & Technology

    2008-06-01

    due to mismatches in the input and output test lines, and direct coupling of signals between the input and output ports of the device along external...12.4 GHz 4 Select Calibration Wizzard 5 Click the boxes for: unguided, TRL, 1-2 ports , and cal kit #28 6 Click Next, Through Standard, & Line...B. Black, C. Cerbus, J. Henes, G. Hansen, D. Widdof and M. Pettit , "Fabrication and Space Testing of Conductive Nanocomposites Containing Carbon

  18. Hyperpolarized 13C MR Markers of Renal Tumor Aggressiveness

    DTIC Science & Technology

    2015-12-01

    Criekinge, Ailin Hansen, Bertram Koelsch, Jeremy Gordon, Celine Baligand, Robert Bok, Dan B. Vigneron, David M. Wilson, Peder Larson, Kayvan R. Keshari...Sep. 2013. Published OnlineFirst November 30, 2012.Cancer Res Kayvan R. Keshari, Renuka Sriram, Bertram L. Koelsch, et al. Rapid Lactate...Resonance Reveals Rapid Lactate Export in Metastatic Renal Cell Carcinomas Kayvan R. Keshari1, Renuka Sriram1, Bertram L. Koelsch2, Mark Van Criekinge1

  19. Genome-Wide Analysis of Translational Control in Tuberous Sclerosis Complex

    DTIC Science & Technology

    2013-07-01

    C /EBP, a family of transcription factors that regulate the expression of tissue-specific genes during differentiation ( 42 ). When an alternative TIS...tube was placed at 42 ° C for 15 min to denature Fluc, whereas the other was kept at room temperature. The denatured or nondenatured Fluc protein was then... elegans . Aging Cell 6, 111–119 (2007). 18. M. Hansen, S. Taubert, D. Crawford, N. Libina, S. J. Lee, C . Kenyon, Lifespan extension by conditions that

  20. Ocean Surface Wave Optical Roughness: Innovative Polarization Measurement

    DTIC Science & Technology

    2007-09-30

    whitecap breaking waves. * Prof. Michael L . Banner, School of Mathematics, The University of NSW, Sydney, Australia Dr. Bertrand Chapron...of microsacle breaking waves from infrared imagery using a PIV algorithm. Meas. Sci. Technol. 16, 1961-1969. Phillips, O. M., Posner, F. L ., and... Hansen , J. P. 2001 High resolution radar measurements of the speed distribution of breaking events in wind-generated ocean waves: surface impulse

  1. Ocean Surface Wave Optical Roughness - Innovative Measurement and Modeling

    DTIC Science & Technology

    2006-01-01

    microsacle breaking waves from infrared imagery using a PIV algorithm. Meas. Sci. Technol. 16, 1961-1969. Phillips, O. M., Posner, F. L ., and Hansen , J...small as a millimeter. This characterization includes microscale and whitecap breaking waves. * Prof. Michael L . Banner, School of Mathematics...The University of NSW, Sydney, Australia Dr. Bertrand Chapron, Oceanography, IFREMER, Brest, France Dr. Andres Corrada-Emmanuel, Physics Dept

  2. Ocean Surface Wave Optical Roughness - Innovative Measurement and Modeling

    DTIC Science & Technology

    2007-09-30

    F. L ., and Hansen , J. P. 2001 High resolution radar measurements of the speed distribution of breaking events in wind-generated ocean waves...small as a millimeter. This characterization includes microscale and whitecap breaking waves. * Prof. Michael L . Banner, School of Mathematics...The University of NSW, Sydney, Australia Dr. Bertrand Chapron, Oceanography, IFREMER, Brest, France Dr. Andres Corrada-Emmanuel, Physics Dept

  3. Ocean Surface Wave Optical Roughness - Innovative Measurement and Modeling

    DTIC Science & Technology

    2007-09-30

    and whitecap breaking waves. * Prof. Michael L . Banner, School of Mathematics, The University of NSW, Sydney, Australia Dr. Bertrand Chapron...microsacle breaking waves from infrared imagery using a PIV algorithm. Meas. Sci. Technol. 16, 1961-1969. Phillips, O. M., Posner, F. L ., and... Hansen , J. P. 2001 High resolution radar measurements of the speed distribution of breaking events in wind-generated ocean waves: surface impulse and

  4. Injury Criteria for Dynamic Hyperextension of the Female Elbow Joint

    DTIC Science & Technology

    2006-11-01

    1 INJURY CRITERIA FOR DYNAMIC HYPEREXTENSION OF THE FEMALE ELBOW JOINT Stefan M. Duma*, Gail A. Hansen, Eric A. Kennedy, Joel D. Stitzel...Laboratory Fort Rucker, AL 36362 ABSTRACT This paper describes an analysis to develop dynamic hyperextension injury criteria for the female elbow ...joint. Dynamic hyperextension tests were performed on 24 female cadaver elbow joints. The energy source was a drop tower utilizing a three-point

  5. Inspection of the Engineering Condition of Underwater Concrete Structures

    DTIC Science & Technology

    1989-04-01

    information, bulletins, and reports of work accomplished and planned on the evaluation and repair of concrete structures. Research Needs 159. Risse! et al...43-85-01 O&M, Port Hueneme, CA. Hansen, W. C. 1965 (May). "Twenty-Year Report on the Long-Term Study of Cement Performance in Concrete ," Research ...REPAIR, EVALUATION, MAINTENANCE, AND REHABILITATION RESEARCH PROGRAM TECHNICAL REPORT REMR-CS-9 INSPECTION OF THE ENGINE~:RING CONDITION OF

  6. Characterization of a Mutant Diphtheria Toxin that is Defective in Binding to Cell Membrane Receptors on Vero Cells

    DTIC Science & Technology

    1982-08-13

    Uniformed Services University of the Health Sciences, Bethesda, MD and have been maintained by S. Hansen since 1966. Chinese hamster ovary ( CHO ...et proprietes immunisantes. Ann. lnst. Pasteur~. 1-22 163. Ray, B.J. and Wu. H.C. (1981) Internalization of r1C1n in Chinese hamster ovary cells . Mol...cytotoxicity of toxin for Chinese hamster V79 cells and the inhibitory effects were reversed by methyl-a-mannoslde and N-acetyl glucosamine

  7. An Apparatus for Sizing Particulate Matter in Solid Rocket Motors.

    DTIC Science & Technology

    1984-06-01

    accurately measured. A curve for sizing polydispersions was presented which was used by Cramer and Hansen [Refs. 2, 12]. Two phase flow losses are often...Concentration...... 54 18. 5 Micron Polystyrene, Curve Fit .......... ... 55 19. 5 Micron Polystyrene, Two Angle Method ........ .56.... 20. 10 Micron...Polystyrene, Curve Fit .. ........ 57....[57 21. 10 Micron Polystyrene, Two Angle Method .. ....... .58 . . .6_ *22. 20J Mizron P3iystvrene Cu. .Fi

  8. Checkpoint Kinase-Dependent Regulation of DNA Repair and Genome Instability in Breast Cancer

    DTIC Science & Technology

    2007-06-01

    H. A. Hansen, C. Liu, R. Slaaby, A. M. Carr, and O. Nielsen. 2005. Ddb1 controls genome stability and meiosis in fission yeast. Genes Dev 19:853-62... meiosis in fission yeast. Genes Dev. 19:853–862. 26. Hu, J., C. M. McCall, T. Ohta, and Y. Xiong. 2004. Targeted ubiquitination of CDT1 by the DDB1-CUL4A

  9. Adequate Compensation for a Permanent Change of Station Move: A Study Comparing the Policies of the Military, Civil Service, and Private Sector.

    DTIC Science & Technology

    1980-03-01

    home for five days while their household goods are packed and picked up, the house is cleaned by a professional cleaning service, and a final inspection ...OF THE MILITARY, CIVIL SERVICE, AND PRIVATE SECTOR by Gregory Lee Hansen __. and __ Dwight Warner Handforth March 1980 L LJ Thesis Advisor: EA. Finnkp...Change o Masr esis Station Mrove: A Study cmpaing the Policiesarh1 of the Military, Civil Service, and Private a. PROMISNG 00G. REPORT uU6860 6. CONTRACT

  10. A Study of the Diffusion, Electrochemical Mobility and Removal of Dissolved Copper in a Saturated Porous Medium.

    DTIC Science & Technology

    1980-11-01

    Williams (1978) worked specifically on organo -cupric ion complexes and found that the relative stability of the available ligands, as well as pH, controlled...and Williams, P.M., 1978, Model organo -cupric ion complexes in seawater: Geochemical Journal, v. 12, p. 21-27. Rubin, A.J., 1974, Aqueous...se]f-potentials: Geophysics, v. 25, p. 226-249. Schnitzer, M. and Hansen, E.H., 1970, Organo -metallic interactions o in soils: 8. an evaluation of

  11. 101. View of transmitter building no. 102, missile warning operation ...

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

    101. View of transmitter building no. 102, missile warning operation center, close up view of DRED (detection radar environmental display) console in operation showing target. Official photograph BMEWS Project by Hansen, 14 March 1963, clear as negative no. A-8803. - Clear Air Force Station, Ballistic Missile Early Warning System Site II, One mile west of mile marker 293.5 on Parks Highway, 5 miles southwest of Anderson, Anderson, Denali Borough, AK

  12. U.S. Deep-Sea Tsunameter Network Fully Operational

    DTIC Science & Technology

    2008-09-01

    southeast. On April 16, 2007, DART II station 55401 was established in the Tasman Sea . In March 2008, the DART team assisted in the second Australian...U.S. Deep- Sea Tsunameter Network Fully Operational Douglas Maxwell, Shannon McArthur, William Hansen, Richard Bouchard, Ian Sears, Jack Higgs and...of deep- sea tsunameters. This effort was an integral part of the National Tsunami Hazard Mitigation Program. The Tsunami Program is part of a

  13. The Proposed Tobacco Settlement: Issues from a Federal Perspective.

    DTIC Science & Technology

    1998-04-01

    Social Security payments, veterans’ compensation , and other public payments. The study concluded that over their lifetimes, smokers received about...being fully compensated for the costs. For example, although smoking reduces the costs of some benefits such as pensions, the benefit plans that...argue that they should be compensated for Medicaid and other spending on the cigarette-related illnesses of their residents. 8. Mark Hansen, "Capitol

  14. Governing Geoengineering Research: A Political and Technical Vulnerability Analysis of Potential Near-Term Options

    DTIC Science & Technology

    2011-01-01

    weather events, or the spread of tropical diseases into North America. The net A Vulnerability-and-Response-Option Analysis Framework for a Risk...Avoidable Surprises, Cambridge: Cambridge University Press, 2002. Doney, Scott C., Victoria J. Fabry , Richard A. Feely, and Joan A. Kleypas, “Ocean...Falkenmark, Louise Karlberg, Robert W. Corell, Victoria J. Fabry , James Hansen, Brian Walker, Diana Liverman, Katherine Richardson, Paul Crutzen, and

  15. Engine Cold Start

    DTIC Science & Technology

    2015-09-01

    Army TARDEC Fuels and Lubricants Research Facility Southwest Research Institute® (SwRI®) San Antonio, TX for Eric Sattler U.S. Army TARDEC...Gregory A. T. Hansen U.S. Army TARDEC Fuels and Lubricants Research Facility Southwest Research Institute® (SwRI®) San Antonio, TX for...Army TARDEC Fuels and Lubricants Research Facility (SwRI®) UNCLASSIFIED UNCLASSIFIED iv REPORT DOCUMENTATION PAGE Form Approved OMB No. 0704-0188

  16. Federal Contractors and Sticky Costs

    DTIC Science & Technology

    2014-11-05

    NPS-CM-14-188 ACQUISITION RESEARCH PROGRAM SPONSORED REPORT SERIES Federal Contractors and Sticky Costs 5 November 2014 Stephen C. Hansen...average 1 hour per response, including the time for reviewing instructions, searching existing data sources, gathering and maintaining the data needed...Public Policy - iv - Naval Postgraduate School NPS-CM-14-188 Acquisition Research Program Sponsored Report Series Federal Contractors and

  17. Factors Associated with Loss of Penicillin G Concentrations in Serum After Intramuscular Benzathine Penicillin G Injection: A Meta-analysis

    DTIC Science & Technology

    2012-07-01

    Naval Health Research Center Factors Associated With Loss of Penicillin G Concentrations in Serum After Intramuscular Benzathine Penicillin G... Serum After Intramuscular Benzathine Penicillin G Injection: A Meta-analysis 5a. CONTRACT NUMBER 5b. GRANT NUMBER 5c. PROGRAM ELEMENT NUMBER 6...Concentrations in  Serum  After Intramuscular Benzathine  Penicillin  G Injection:  A Meta-analysis Michael P. Broderick, PhD,* Christian J. Hansen, BS,* and Dennis

  18. Exploitation of Microdoppler and Multiple Scattering Phenomena for Radar Target Recognition

    DTIC Science & Technology

    2006-08-24

    is tested with measurement data. The resulting GPR images demonstrate the effectiveness of the proposed algorithm. INTRODUCTION Subsurface imaging to...utilizes the fast Fourier . transform (FFT) to expedite the imaging GPR. Recently, we re- .... ported a fast and effective SAR-based subsurface ... imaging tech- nique that can provide good resolutions in both the range and cross-range domains I111. Our algorithm differs from Witten’s [91 and Hansen’s

  19. Searching threshold effects in the interest rate: An application to Turkey case

    NASA Astrophysics Data System (ADS)

    Yavuz, Nilgun Cil; Guris, Burak; Yilanci, Veli

    2007-06-01

    This paper investigates the behaviour of interest rates in Turkey using a two-regime TAR model with an autoregressive unit root. This method recently developed by Caner and Hansen [Threshold autoregression with a unit roots, Econometrica 69 (6) (2001) 1555-1596] allows to simultaneously consider non-stationarity and non-linearity. Our finding indicates that the interest rate is a non-linear series and is characterized by a unit root process over the period 1990:1-2006:5.

  20. Hydrologic Engineering Center: A Quarter Century 1964-1989

    DTIC Science & Technology

    1989-01-01

    APPENDICES 51 Jesse Abbott Charles Abraham Abnish Amar Anna Sue Arnold Nicolette Baptista Robert Barkau Susan Barth Leo Beard Frances Beeman ...1986 1985 1986 1986-1987 1988 1983-1988 1986-1988 1989 Appendix B Student Support Belinda Allen Donald Hansen Mary Randall Waleed AI-Rawi...Lou Sullivan Bill Arvola Donald Van Sickle Donald E. Evenson Walter Wunderlich FA Cole James Price Joseph N. Bradley Manuel Benson Michael

  1. Evaluating the C-17 Semi-Prepared Runway Capability - An Off-Road Map

    DTIC Science & Technology

    2007-11-02

    RESEARCH PROJECT Erik W. Hansen, Major, USAF AFIT/ GMO /ENS/02E-06 DEPARTMENT OF THE AIR FORCE AIR UNIVERSITY AIR FORCE INSTITUTE OF...excellent jumping off point for operations in the region and allowed for reasonable force protection costs . Unfortunately, it is unlikely given...climate based upon operational scenarios and the world-wide distribution of soil types and climates. This strategy would not be cost prohibitive and

  2. Aerosol Observability and Data Assimilation Investigations in Support of Atmospheric Composition Forecasts

    DTIC Science & Technology

    2013-09-30

    Assimilation-Aerosol Optical Depth (NAVDAS- AOD ) framework. This work also led to the development of the world’s first quasi-operational global multi...satellite and in situ observations including their flow dependant correlation lengths for use in NAVDAS- AOD : The optimal mix of meteorological and...project with Dr. Hansen. Hence, in house knowledge already exists to expedite this process . Included in this budget is additional travel money so that

  3. Installation, Maintenance, Operation, and Development Support for a Prototype Seismic Data Center. Phase 3

    DTIC Science & Technology

    1989-03-15

    Berkeley Laboratories ( LBL ), S-CUBED, ENSCO, and Teledyne Geotech were also in attendance. The guests heard a series of lectures describing the Center’s...Randall Godfrey, Frank Pilotte, and George Rothe. Peter Farkas, John Fergus, David Lehmertz, and G.M. Leies represented HQ AFTAC. Barry Hansen from DIA...J. Hannon (LLNL), Dr. David Harkrider (Cal Tech), Dr. Eugene Herrin (SMU), Dr. Thomas Jordan (MIT), Dr. Paul Richards (ACDA), Dr. Sean Solomon (MIT

  4. Echo: skin stress test

    NASA Technical Reports Server (NTRS)

    1960-01-01

    Skin Stress Test of the 12-foot satellite built as a prototype of the full-scale Echo satellite. The 12-foot diameter of the sphere was chosen because that was the ceiling height in the Langley model shop. The proposal to build the 12-foot satellite was made in November 1957. - Published in James R. Hansen, Spaceflight Revolution: NASA Langley Research Center From Sputnik to Apollo, NASA SP-4308, pp. 170-171.

  5. Seasonal Forcing of Summer Dissolved Inorganic Carbon and Chlorophyll a on the Western Shelf of the Antarctic Peninsula

    DTIC Science & Technology

    2010-03-30

    toplankton pigment concentrations [Mitchell and Holm‐ Hansen, 1990; Sweeney et al., 2000; Vernet et al., 2008], and consequently greater photosynthetic ...mainly to an increase of primary productivity and photosynthetic DIC uptake during spring‐ summer months. [6] The results of this study are organized in... pigment extracts were measured by Figure 1. Geographic location of the PAL‐LTER study area. Sampling locations occupied during each summer cruise are

  6. Acute Toxicity of Tributyltins and Tributyltin Leachates from Marine Antibiofouling Paints.

    DTIC Science & Technology

    1982-09-10

    Totitefois, un type de peinture a ivd lP trittttylr~tain 10 fois plusg vite que lautre. La mortalitL4 de’ amphipodes, lor de-; P,;sais h court terme...Biblioqraphy : Frictional Resistance of Ship Bottoms, by 0. Hansen S 17 N11(1981) - Nouvelle mdthode de 1ixiviation des peintures antisalissures...pendant le vicillissement artificiel, par E. Mor - Etude de quelques parambtres influenqant la lixiviation des peintures antisalissures, par E. Mor

  7. CRREL, 30 Years Retrospective 1986-1991

    DTIC Science & Technology

    1990-01-01

    commercially. A patent was awarded to Charles J. Korhonen and Frederick C. Gernhard, for a Blister Pressure Relief Valve. This valve, now in commercial...Andrew Assur Michael A. Bilello W. Keith Boyd GilbertA. Currier Francis C. Gagnon Robert W. Gerdel Arnold R. Goerke B. Lyle Hansen James R... Frederick Crory receives Army Research & Development Award. 20 Rodney Poland receives Meritorious Civilian Service Award. 1979 CRREL receives U.S. Army

  8. Leishmania braziliensis panamensis: Increased Infectivity Resulting from Heat Shock

    DTIC Science & Technology

    1988-01-01

    Schlesinger, M. Ashburner, and A. Tissieres, perature, leishmania promastigotes un- Eds.), pp. 11-18. Cold Spring Harbor Laboratory, dergo a conversion to heat...induced differ- Cold Spring Harbor , NY. entiating forms. Macrophages may then en- DUNCAN, R., AND HERSHEY, J. W. B. 1984. Heat gulf the parasites...singer, M. Ashburner, and A. Tissieres, Eds.), pp. JACKSON. P. R.. PAPPAS. M. G.. AND HANSEN, b. D. 1-9. Cold Spring Harbor Laboratory, Cold Spring

  9. 60 K Phase Change Material Device.

    DTIC Science & Technology

    1996-01-01

    of PCMD Concept 7 3. Test Apparatus for 60 K PCMD 8 4. R.G. Hansen Cryocooler Cooling Capability .9 5. Prototype PCMD 9 6. Q-Meter Design 10 7...operating temperature (60 K in the application of interest here) and a vibration-free environment for optimum performance. However, cryocoolers induce...occasionally and temporarily turn off the cryocooler to provide temporary periods of vibration-free operation, reduce the average electrical power

  10. The ARL/FED Anechoic Chamber

    DTIC Science & Technology

    1981-08-04

    Attn: F. E. Geib National Bureau of Standards Code 1942 Aerodynamics Section (Copy No. 25) Washington, DC 20234 Attn: D. S. Pallet David W. Taylor...Dated 4 August 1981 David W. Taylor Naval Ship R & D Center Dr . James H. Dittmar Attn: J. Henry MS 501-4 (Copy No. 39) NASA Lewis Research Center21000...Brookpark Road• Naval Research Laboratory Cleveland, OH 44135 Washington, DC 20390 (Copy No. 50) Attn: R. J. Hansen (Copy No. 40) Dr . R. P. Dring United

  11. Coastal Remote Sensing Investigations. Volume 1. Marine Environment.

    DTIC Science & Technology

    1980-04-01

    O,P, ) from equation (15) were com - pared with exact results calculated by Hansen [.1] using the doubling method. The phase function used for this...CONTINUE £63 00 72 KuI,NWO 164 WSJ . 165 RH(K)*0. 166 DO 70 J31,NTMAX 167 "vWaNOCK) 168 MMCM )SRN(K),100. aW*NEPCJ)/NPMAX 169 70 CONTINUE 370 WawAwOCK) 171 RE

  12. Receive Channel Architecture and Transmission System for Digital Array Radar

    DTIC Science & Technology

    2005-12-01

    to radar designers . The quadrature demodulation scheme and the basic transmit and receive architecture for a digital phased array antenna are also...Genetic algorithm design and testing of a random element 3- D 2.4 GHz phased array transmit antenna constructed of commercial RF microchips,” Master’s...December 2004. [5] W. L. Stutzman and G. A. Thiele, Antenna Theory and Design , 2nd Edition, Wiley, New York, 1998. [6] R. C. Hansen, Phased Array

  13. Is Federalism Based on Ethnic Partition a Viable Solution in Iraq?

    DTIC Science & Technology

    2007-12-14

    multiple terrorists and state actors interjecting their philosophies and agendas. Federalism similar to the system in Bosnia may potentially provide a...provinces will require both governmental and military interjection . To prevent the targeting of IDPs transiting into their perspective provinces will...Ltd. Hansen, Lene, 2006, Security as a Practice, Discourse Analysis and the Bosnian War, Routledge Taylor and Francis Group. Horowitz, Donald L

  14. Adaptive Flow Control for Enabling Quality of Service in Tactical Ad Hoc Wireless Networks

    DTIC Science & Technology

    2010-12-01

    been employed as part of a QoS management system for wired networks in the Ama- ranth system [Hoover 2001]. In Amaranth , applications register their...reducing network congestion. This idea is similar to that seen in IntServ [Braden 1994] and in the Amaranth system [Hoover 2001], without the need...San Francisco, CA (USA), April 2001. IEEE, 2001. [Hoover 2001] Hoover, C., Hansen, J., Koopman, P. & Tamboli, S. “The Amaranth Framework: Policy

  15. Species Profiles: Life Histories and Environmental Requirements of Coastal Fishes and Invertebrates (South Atlantic): American Eel,

    DTIC Science & Technology

    1984-07-01

    differentiated metamorphosis males and females at age 1112 in the / , SILVE EEL Altamaha River, Georgia, and co cluded.-’.-.- that females there...migration northern eels. Hansen and Eversole , metamorphosis (in press) and Harrell and Loyacano GLAS EEL/ELVER (1980) collected differentiated males and...maturity (Wenner and ML ,ck with spermatogonia present), but none 1974). The difference in the extent of these stages are capable of repro- of metamorphosis

  16. IMPLICATIONS OF FISH MOVEMENT AND SEASONAL HABITAT DYNAMICS FOR RESTORATION PLANNING AND PRIORITIZATION

    EPA Science Inventory

    J. L. Ebersole1*, S.G. Leibowitz1, P.J. Wigington Jr. 1, J.P. Baker1, M.A. Cairns1, M.R. Church1, J. Compton1, B. Hansen2, B. Miller3 1 Environmental Protection Agency, 200 SW 35th St., Corvallis, OR 97333, 541-754-4775 (w), 541-754-4799 (f), ebersole.joe@epa.gov 2 USDA, Fo...

  17. American Society of Limnology and Oceanography Symposium Report on What Controls Phytoplankton Production in Nutrient-Rich Areas of the Open Sea Held at San Marcos, California on 22-24 February 1991

    DTIC Science & Technology

    1991-06-25

    Patterns from CZCS Images [substituted for Gordon ]. Charles B. Miller and Thomas M. Powell: If Nutrient-Rich Systems are Iron Limited. They are...Larger-Scale Processes 10:20 - 12:00, Thomas M. Powell, Chair Contributing Panelists: Osmund Holm-Hansen Michael Pilson Thomas M. Powell Walker 0...Phytoplankton. Swift, Dorothy, W.G. Sunda & S.A. Huntsman: Oceanic Phytoplankton Need Less Iron. Thomas , William H: Anomalous Nutrient-Chlorophyll

  18. Oropharyngeal leprosy in art, history, and medicine.

    PubMed

    Scollard, D M; Skinsnes, O K

    1999-04-01

    Advanced lesions of the face, nasopharynx, and oropharynx have played an important role in the medical and social history of Hansen's disease. Renaissance artists included detailed portrayals of these lesions in some of their paintings, a testimony not only to their artistic skill and powers of observation but also to the common presence of these patients in European cities and towns of the period. The disease is now understood as a broad immunologic spectrum of host responses to Mycobacterium leprae, with a variety of clinical and pathologic manifestations in nerve, soft tissues, and bone. This review incorporates the findings of 2 extraordinary studies (one from Europe and the other from Japan) of pharyngeal and facial lesions. In the 1950s, studies of skeletal remains from the churchyard of a Danish leprosarium revealed a triad of maxillofacial lesions unique to leprosy and designated facies leprosa. In pre-World War II Japan, before effective treatment had been discovered, a prominent otorhinolaryngologist studying oropharyngeal and nasopharyngeal lesions prepared watercolor illustrations of the natural progression of untreated Hansen's disease. As a result of effective antimicrobial therapy, such advanced lesions are now rarely seen, but the presenting signs and symptoms of leprosy still occasionally arise in the nasal and oral mucosa. The nasopharynx and oropharynx may be important early sites of inoculation and infection by M leprae, and they require additional emphasis in worldwide efforts toward early diagnosis and treatment of Hansen's disease.

  19. Distribution of haploniscids (Isopoda, Asellota, Haploniscidae) in Icelandic waters, with description of Haploniscus astraphes n. sp. from the Iceland basin and the Southeast Atlantic Ocean.

    PubMed

    Brökeland, Wiebke; Svavarsson, Jörundur

    2017-02-12

    Ten species of Haploniscidae Hansen, 1916 were sampled in Icelandic waters during expeditions in the framework of the BIOICE project. Nine of these were known from the North Atlantic Ocean, i.e. Haploniscus aduncus Lincoln, 1985, H. ampliatus Lincoln, 1985, Haploniscus angustus Lincoln, 1985, H. bicuspis (Sars, 1877), H. foresti Chardy, 1974, H. hamatus Lincoln, 1985, H. spinifer Hansen, 1916, Antennuloniscus simplex Lincoln, 1985 and Chauliodoniscus armadilloides (Hansen, 1916). All but H. bicuspis and H. angustus were restricted to the Atlantic Ocean south of the Greenland-Iceland-Faeroe Ridge (GIF Ridge), while H. bicuspis occurred at considerable depth ranges both north and south of the GIF Ridge. A new species, Haploniscus astraphes n. sp., is described based on material from the Denmark Strait, North Atlantic and the Guinea Basin, South Atlantic. H. astraphes n. sp. belongs to a group of Haploniscus species closely related to the genus Antennuloniscus and shares several characters with species from that genus, especially the spine row on pleopod 1, the stout sensory seta on the carpus of pereopod 7 and characters of the antennae. H. astraphes n. sp. is characterized by a rectangular body shape, the straight frontal margin of the head and the strongly convex posterior margin of the pleotelson.

  20. Dislocated interests and climate change

    NASA Astrophysics Data System (ADS)

    Davis, Steven J.; Diffenbaugh, Noah

    2016-06-01

    The predicted effects of climate change on surface temperatures are now emergent and quantifiable. The recent letter by Hansen and Sato (2016 Environ. Res. Lett. 11 034009) adds to a growing number of studies showing that warming over the past four decades has shifted the distribution of temperatures higher almost everywhere, with the largest relative effects on summer temperatures in developing regions such as Africa, South America, southeast Asia, and the Middle East (e.g., Diffenbaugh and Scherer 2011 Clim. Change 107 615-24 Anderson 2011 Clim. Change 108 581; Mahlstein et al 2012 Geophys. Res. Lett. 39 L21711). Hansen and Sato emphasize that although these regions are warming disproportionately, their role in causing climate change—measured by cumulative historical CO2 emissions produced—is small compared to the US and Europe, where the relative change in temperatures has been less. This spatial and temporal mismatch of climate change impacts and the burning of fossil fuels is a critical dislocation of interests that, as the authors note, has ‘substantial implications for global energy and climate policies.’ Here, we place Hansen and Sato’s ‘national responsibilities’ into a broader conceptual framework of problematically dislocated interests, and briefly discuss the related challenges for global climate mitigation efforts.

  1. The equivalent fundamental-mode source

    SciTech Connect

    Spriggs, G.D.; Busch, R.D.; Sakurai, Takeshi; Okajima, Shigeaki

    1997-02-01

    In 1960, Hansen analyzed the problem of assembling fissionable material in the presence of a weak neutron source. Using point kinetics, he defined the weak source condition and analyzed the consequences of delayed initiation during ramp reactivity additions. Although not clearly stated in Hansen`s work, the neutron source strength that appears in the weak source condition corresponds to the equivalent fundamental-mode source. In this work, we describe the concept of an equivalent fundamental-mode source and we derive a deterministic expression for a factor, g*, that converts any arbitrary source distribution to an equivalent fundamental-mode source. We also demonstrate a simplified method for calculating g* in subcritical systems. And finally, we present a new experimental method that can be employed to measure the equivalent fundamental-mode source strength in a multiplying assembly. We demonstrate the method on the zero-power, XIX-1 assembly at the Fast Critical Assembly (FCA) Facility, Japan Atomic Energy Research Institute (JAERI).

  2. Partial-solubility parameters of naproxen and sodium diclofenac.

    PubMed

    Bustamante, P; Peña, M A; Barra, J

    1998-09-01

    The expanded Hansen method was tested for determination of the solubility parameters of two non-steroidal anti-inflammatory drugs, naproxen and sodium diclofenac. This work describes for the first time the application of the method to the sodium salt of a drug. The original dependent variable of the expanded Hansen method, involving the activity coefficient of the drug, was compared with the direct use of the logarithm of the mole fraction solubility 1nX2 in the solubility models. The solubility of both drugs was measured in pure solvents of several chemical classes and the activity coefficient was obtained from the molar heat and the temperature of fusion. Differential scanning calorimetry was performed on the original powder and on the solid phase after equilibration with the pure solvents, enabling detection of possible changes of the thermal properties of the solid phase that might change the value of the activity coefficient. The molar heat and temperature of fusion of sodium diclofenac could not be determined because this drug decomposed near the fusion temperature. The best results for both drugs were obtained with the dependent variable 1nX2 in association with the four-parameter model which includes the acidic and basic partial-solubility parameters delta(a) and delta(b) instead of the Hansen hydrogen bonding parameter delta(h). Because the dispersion parameter does not vary greatly from one drug to another, the variation of solubility among solvents is largely a result of the dipolar and hydrogen-bonding parameters, a fact that is being consistently found for other drugs of small molecular weight. These results support earlier findings with citric acid and paracetamol that the expanded Hansen approach is suitable for determining partial-solubility parameters. The modification introduced in the expanded Hansen method, i.e. the use of 1nX2 as the dependent variable, provides better results than the activity coefficient used in the original method. This is

  3. High-Resolution Modelling of Health Impacts from Air Pollution for Denmark using the Integrated Model System EVA

    NASA Astrophysics Data System (ADS)

    Brandt, Jørgen; Andersen, Mikael S.; Bønløkke, Jakob; Christensen, Jesper H.; Hansen, Kaj M.; Hertel, Ole; Im, Ulas; Jensen, Steen S.; Ketzel, Matthias; Nielsen, Ole-Kenneth; Plejdrup, Marlene S.; Sigsgaard, Torben; Geels, Camilla

    2015-04-01

    , J., J. D. Silver, L. M. Frohn, C. Geels, A. Gross, A. B. Hansen, K. M. Hansen, G. B. Hedegaard, C. A. Skjøth, H. Villadsen, A. Zare, and J. H. Christensen, 2012: An integrated model study for Europe and North America using the Danish Eulerian Hemispheric Model with focus on intercontinental transport. Atmospheric Environment, Volume 53, June 2012, pp. 156-176, doi:10.1016/j.atmosenv.2012.01.011 Brandt, J., J. D. Silver, J. H. Christensen, M. S. Andersen, J. Bønløkke, T. Sigsgaard, C. Geels, A. Gross, A. B. Hansen, K. M. Hansen, G. B. Hedegaard, E. Kaas and L. M. Frohn, 2013a: "Contribution from the ten major emission sectors in Europe to the Health-Cost Externalities of Air Pollution using the EVA Model System - an integrated modelling approach". Atmospheric Chemistry and Physics, Vol. 13, pp. 7725-7746, 2013. www.atmos-chem-phys.net/13/7725/2013/, doi:10.5194/acp-13-7725-2013. Brandt, J., J. D. Silver, J. H. Christensen, M. S. Andersen, J. Bønløkke, T. Sigsgaard, C. Geels, A. Gross, A. B. Hansen, K. M. Hansen, G. B. Hedegaard, E. Kaas and L. M. Frohn, 2013b: "Assessment of Past, Present and Future Health-Cost Externalities of Air Pollution in Europe and the contribution from international ship traffic using the EVA Model System". Atmospheric Chemistry and Physics. Vol. 13, pp. 7747-7764, 2013. www.atmos-chem-phys.net/13/7747/2013/. doi:10.5194/acp-13-7747-2013. Plejdrup, M.S., Gyldenkærne, S., 2011. Spatial distribution of pollutants to air - the SPREAD model. NERI Technical Report No. 823.

  4. Morphology changes in stacking-disordered ice Ich as a function of time and temperature

    NASA Astrophysics Data System (ADS)

    Kuhs, Werner F.; Falenty, Andrzej; Hansen, Thomas C.

    2015-04-01

    Laboratory experiments have shown that ice I crystallizing from water vapour [1] or undercooled liquid water [2] under atmospheric conditions initially forms a stacking disordered arrangement of high complexity; the stacking arrangement is different depending on the starting phase[1]. Both cubic and hexagonal components are locally present and various names of this form of ice have been proposed recently: so-called ice Ic or 'ice Ic'[1], ice Isd [2] or ice Ich[3]. It is has been shown that ice Ich undergoes a progressive transformation of cubic into hexagonal stackings with time and/or increasing temperature [1]. As a mechanisms for this annealing we had proposed the cooperative action of Bjerrrum defects and moving dislocations which become active on a time-scale of minutes at temperatures close to 240K [4]. Here we show from electron-microscopic images that the presence of stacking faults is linked to numerous kinks on the prismatic faces of the trigonal ice crystals of ice Ich [1]. We present details on the annealing kinetics in the temperature range between 170 and 240K and suggest that the kinks of ice Ich crystals may be responsible for the roughness deduced from some air-borne light-scattering experiments, an increased reactivity in particular at temperatures below ~ 200K as well as curvature-induced higher vapour pressures of ice Ich as compared to normal ice Ih. [1] W.F.Kuhs, C.Sippel, T.C.Hansen (2012) PNAS 109:21259-21264 [2] T.Malkin, B.J.Murray, A.V.Brukhno, J.Anwar, C.G.Salzmann (2012) PNAS 109: 1041-1045 [3] T.C.Hansen, C.Sippel, W.F.Kuhs (2014) Z.Krist. DOI 10.1515/zkri-2014-1780 [4] W.F.Kuhs, G.Genov, D.K.Staykova, T.Hansen (2004) 6:4917-4920

  5. Pure neuritic leprosy presenting as ulnar nerve neuropathy: a case report of electrodiagnostic, radiographic, and histopathological findings.

    PubMed

    Payne, Russell; Baccon, Jennifer; Dossett, John; Scollard, David; Byler, Debra; Patel, Akshal; Harbaugh, Kimberly

    2015-11-01

    Hansen's disease, or leprosy, is a chronic infectious disease with many manifestations. Though still a major health concern and leading cause of peripheral neuropathy in the developing world, it is rare in the United States, with only about 150 cases reported each year. Nevertheless, it is imperative that neurosurgeons consider it in the differential diagnosis of neuropathy. The causative organism is Mycobacterium leprae, which infects and damages Schwann cells in the peripheral nervous system, leading first to sensory and then to motor deficits. A rare presentation of Hansen's disease is pure neuritic leprosy. It is characterized by nerve involvement without the characteristic cutaneous stigmata. The authors of this report describe a case of pure neuritic leprosy presenting as ulnar nerve neuropathy with corresponding radiographic, electrodiagnostic, and histopathological data. This 11-year-old, otherwise healthy male presented with progressive right-hand weakness and numbness with no cutaneous abnormalities. Physical examination and electrodiagnostic testing revealed findings consistent with a severe ulnar neuropathy at the elbow. Magnetic resonance imaging revealed diffuse thickening and enhancement of the ulnar nerve and narrowing at the cubital tunnel. The patient underwent ulnar nerve decompression with biopsy. Pathology revealed acid-fast organisms within the nerve, which was pathognomonic for Hansen's disease. He was started on antibiotic therapy, and on follow-up he had improved strength and sensation in the ulnar nerve distribution. Pure neuritic leprosy, though rare in the United States, should be considered in the differential diagnosis of those presenting with peripheral neuropathy and a history of travel to leprosy-endemic areas. The long incubation period of M. leprae, the ability of leprosy to mimic other conditions, and the low sensitivity of serological tests make clinical, electrodiagnostic, and radiographic evaluation necessary for diagnosis

  6. The effects of a STEM professional development intervention on elementary teachers

    NASA Astrophysics Data System (ADS)

    Dailey, Deborah D.

    To improve and sustain science teaching and learning in the elementary grades, experts recommended school districts afford time in the day for science instruction, secure the necessary resources for an investigative classroom, and provide teachers with increased professional development opportunities that target content knowledge, pedagogical skills, and confidence in teaching science (e.g. Buczynski & Hansen, 2010; Brand & Moore, 2011; NSB, 2010). In particular, researchers recommended teachers receive quality professional development that is sustained over time and embedded in the real world of the classroom (e.g. Buczynski & Hansen, 2010; Cotabish & Robinson, 2012). The purpose of this dissertation was to examine changes in elementary teachers' science teaching perceptions, concerns, and science process skills during and after participation in a STEM-focused professional development intervention involving embedded support using peer coaching. The positive effects of sustained, embedded professional development programs on science instruction have been documented by multiple research studies (e.g. Buczynski & Hansen, 2010; Cotabish, Dailey, Hughes, & Robinson, 2011; Duran & Duran, 2005; Levitt, 2011); however, few studies have investigated the effects after removal of the professional development support (Johnson, Kahle, & Fargo, 2007; Shymansky, Yore, & Anderson, 2004). By examining the changes across three years (including one year after the conclusion of the professional development intervention), the researcher in the present study considered the dosage of intervention needed to bring about and preserve significant changes in the participant teachers. To measure the impact of the intervention on teachers, the researcher used quantitative data supported by qualitative interviews. Results indicated that changes in science teaching perceptions were realized after one year or 60 hours of intervention; however, it took two years or 120 hours of intervention to see

  7. Pinatubo global cooling on target

    SciTech Connect

    Kerr, R.A.

    1993-01-29

    When Pinatubo blasted millions of tons of debris into the stratosphere in June 1991, Hansen of NASA's Goddard Institute for Space Studies used his computer climate model to predict that the shade cost by the debris would cool the globe by about half a degree C. Year end temperature reports for 1992 are now showing that the prediction was on target-confirming the tentative belief that volcanos can temporarily cool the climate and validating at least one component of the computer models predicting a greenhouse warming.

  8. Spatial and Temporal Analysis of Industrial Forest Clearcuts in the Conterminous United States

    NASA Astrophysics Data System (ADS)

    Huo, L. Z.; Boschetti, L.

    2015-12-01

    Remote sensing has been widely used for mapping and characterizing changes in forest cover, but the available remote sensing forest change products are not discriminating between deforestation (permanent transition from forest to non forest) and industrial forest management (logging followed by regrowth, with no land cover/ land use class change) (Hansen et al, 2010). Current estimates of carbon-equivalent emissions report the contribution of deforestation as 12% of total anthropogenic carbon emissions (van der Werf et al., 2009), but accurate monitoring of forest carbon balance should discriminate between land use change related to forest natural disturbances, and forest management. The total change in forest cover (Gross Forest Cover Loss, GFLC) needs to be characterized based on the cause (natural/human) and on the outcome of the change (regeneration to forest/transition to non/forest)(Kurtz et al, 2010). This paper presents the methodology used to classify the forest loss detected by the University of Maryland Global Forest Change product (Hansen, 2013) into deforestation, disturbances (fires, insect outbreaks) and industrial forest clearcuts. The industrial forest clearcuts were subsequently analysed by converting the pixel based detections into objects, and applying patch level metrics (e.g. size, compactness, straightness of boundaries) and contextual measures. The analysis is stratified by region and by dominant forest specie, to highlight changes in the rate of forest resource utilization in the 2003-2013 period covered by the Maryland Forest Cover Change Product. References Hansen, M.C., Stehman, S.V., & Potapov, P.V. (2010). Reply to Wernick et al.: Global scale quantification of forest change. Proceedings of the National Academy of Sciences, 107, E148-E148 Hansen, M.C., Potapov, P.V., Moore, R et al., (2013), "High resolution Global Maps for the 21stCentury Forest Cover Change", Science 342: 850-853 Kurz, W.A. (2010). An ecosystem context for global

  9. Study of Infrared Atmospheric Emission.

    DTIC Science & Technology

    1983-12-01

    Edward S. and Hajime Sakai, "The 5g Levels of Atomic Nitrogen," J. Phys. B: 14, L391 (1981) Sakai, Hajime, P. Hansen, M. Esplin, R Johansson, M. Peltola...Academic) Chang E S and Sakai H 1981 J. Phys. B: At. Mot. Pkys. 14 L391 -" 1982 to be published Deutsch C 1970 Phys. Rev. A 2 43-8 Edlin B 1964 Encyclopedia...Chang and H. Sakai, J. Phys. B 14, L391 (1981). G. Karl, B. hickel, J. D. Poll, and L. Wotniewicz, Phys. Rev. 6J. T. Hougen. The Calculatiot of

  10. Biblical leprosy: an anachronism whose time has come.

    PubMed

    Kaplan, D L

    1993-03-01

    Although there is a growing consensus that biblical leprosy was indeed not Hansen's disease, there has been no agreement as to the disease or diseases described in the Bible. Biblical scholars have recently provided valuable insights regarding the interpretation of the original text on the cutaneous diseases described in Leviticus, chapter 13. It is suggested by the author that no particular cutaneous disease was meant to be implicated. Rather the passages were written to exonerate persons whose only "sin" was to have an obvious cutaneous disorder.

  11. Map showing general chemical quality of surface water in the Kaiparowits coal-basin area, Utah

    USGS Publications Warehouse

    Price, Don

    1979-01-01

    This is one of a series of maps that describe the geology and related natural resources in the Kaiparowits coal-basin area, Utah Published sources of water-quality data used in the preparation of this map included Iorns, Hembree, Phoenix, and Oakland (1964), Goode (1966, 1969), U.S. Bureau of Land Management (1976), and U.S. Geological Survey (1961-75). Sources of unpublished data include the U.S. Bureau of Reclamation and the Southeastern Utah Association of Governments. Some of the unpublished data was provided by Vaughn Hansen Associates of Salt Lake City, Utah, whose assistance is gratefully acknowledged.

  12. 10.6 Micron Parametric Frequency Converter

    DTIC Science & Technology

    1976-05-30

    1974). 15. C. H. Towncs and A. L. Schawlow, "Microwave Spectroscopy " McGraw-Hill Book Co., Inc. (New York 1955). 40 16. Sec, for example, A. Yariv...One plate of the St bsorption cell is grounded while the other plate is driven by a 9 Hz 300 \\l peak to peak square wave imposed on a slow...June 1976. 4. C. H. Townes and A. L. Schawlow, Microwave Spectroscopy (McGraw-Hill, New York, 1955), p. 256. 5. P. T. Dawson and R. S. Hansen, J. Chem

  13. 103. View of transmitter building no. 102, missile warning operation ...

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

    103. View of transmitter building no. 102, missile warning operation center, overall view of center in operation with staff at consoles. Note defcon (defense condition) display panel (upper right) showing "simulated status"activity level. Also note fiber optic display panel at upper right-center. Official photograph BMEWS Project by Hansen 30 September, 1976, clear as negative no. A-14568. - Clear Air Force Station, Ballistic Missile Early Warning System Site II, One mile west of mile marker 293.5 on Parks Highway, 5 miles southwest of Anderson, Anderson, Denali Borough, AK

  14. An approximate viscous shock layer method for calculating the hypersonic flow over blunt-nosed bodies

    NASA Technical Reports Server (NTRS)

    Grantz, A. C.; Dejarnette, F. R.; Thompson, R. A.

    1989-01-01

    The approximate axisymmetric method presented for accurately calculating the surface and flowfield properties of fully viscous hypersonic flow over blunt-nosed bodies incorporates the turbulence model of Cebeci-Smith (1970) and the equilibrium air tables of Hansen (1959). The method is faster than the parabolized Navier-Stokes or viscous shock layer solvers that it could replace for preliminary design determinations. Surface heat transfer and pressure predictions for the present method are comparable with the more accurate viscous shock layer method as well as flight test and wind tunnel data. A starting solution is not required.

  15. Insurgency Organization Case Study: Al-Qaeda in the Maghreb, 2006-Present

    DTIC Science & Technology

    2008-08-01

    Al-Qaeda in Islamic Maghreb: A “ Glocal ” Organization.” Studies in Conflict and Terrorism. 1 June 2008. Mekhennet, Souad; Moss, Michael; Schmitt...Al-Qaeda in Islamic Maghreb: A “ Glocal ” Organization.” Studies in Conflict and Terrorism. 1 June 2008. 21Hansen, Andrew. “al-Qaeda in the Islamic...1 July, 2008. 29 Marret, Jean-Luc. “Al-Qaeda in Islamic Maghreb: A “ Glocal ” Organization.” Studies in Conflict and Terrorism. 1 June 2008. 30

  16. Epitaxial Growth of Semi-Insulating GaAs

    DTIC Science & Technology

    1978-03-01

    CA 95051 Mr. R . Bell, K 101 Varlan Associates 6ll Hansen Way Palo Äl^o, CA 9^301+ \\ Mr. R . Bierl Raytheon Compa 28 Seyon Street Walthon, MA...BASI Program Code No. 7D10 78 Monitored by Office of Naval Research Arlington, Virginia 22217 Under Contract No. N 00014077 C 0542 06 - • r ...Supervisor and S. T. Jolly is the Project Scientist. D. S. Yaney and D. R . Capewell also participated in the research project. £> iii/iv 1 r

  17. Goldwater-Nichols -- Failing to Go the Distance

    DTIC Science & Technology

    2008-03-25

    the author and do not reflect the official policy or position of the Department of the Army , Department of Defense, or the U.S. Government. U.S... Army War College, Carlisle Barracks, PA 17013-5050 Report Documentation Page Form ApprovedOMB No. 0704-0188 Public reporting burden for the...S) Erik Hansen 5d. PROJECT NUMBER 5e. TASK NUMBER 5f. WORK UNIT NUMBER 7. PERFORMING ORGANIZATION NAME(S) AND ADDRESS(ES) U.S. Army War College

  18. Closing Note: A Tribute to Fridtjof Nansen

    NASA Astrophysics Data System (ADS)

    Untersteiner, Norbert

    The purpose of the Nansen symposium and volume has been to report the results of scientific research, to celebrate the memory of Fridtjof Nansen, and to remind ourselves of his exemplary life as a scientist and humanitarian. In this context it seems appropriate for the international community to remember that the Norwegian Sea and the Arctic Ocean were the cradle of modern oceanography. Mohn, Knudsen, Helland-Hansen, Nansen, Ekman, Fjeldstad, Sverdrup, and many others from this part of the world did their work in the North and became the "founding fathers" of oceanography.

  19. SPRT Analysis of Anomalies in Tritium Beta Decay Spectrum

    NASA Astrophysics Data System (ADS)

    Goldman, T.; Stephenson, G. J., Jr.

    1997-10-01

    The experimentally observed deviations from the Kurie plot near the endpoint of Tritium beta decay are opposite to those expected for the case of massive neutrinos. We reexamine(O. Kofoed-Hansen, Phil. Mag. 42), 1448 (1951). the possibility that these deviations are due to new hypoweak interactions. We find that enhancement above the massless neutrino beta spectrum does occur for all cases (scalar, pseudoscalar, tensor or right-handed currents), although it apparently cannot be large enough to explain the data and be consistent with other experimental constraints. Bounds on the strength of these non-standard model interactions are derived.

  20. Drug Development of the Antimalarial Agent Artemisinin: Total Synthesis, Analog Synthesis, and Structure-Activity Relationship Studies

    DTIC Science & Technology

    1990-08-15

    ozonolysis, cleavage of the olefin unit would be anticiopated. Thus, a roundabout method was employed wherein the enolate of the nor-analog 42 was... Schmid , G.; and Hofheinz.W. J. Am. Chem. Soc, 1983,105, 624. 5. Xu, X.; Zhu, J.; Huang, D.; and Zhou, W. Tetrahedron, 1986,42, 818. 6. A very, M...29. Vitorelli, P.; Winkler, T.; Hansen, H.; and Schmid , H. Helv. Chim. Acta, 1968,51, 1457; see also Rhoads, S.; and Raulins, R. Organic Reactions

  1. Ocean Surface Wave Optical Roughness - Innovative Measurement and Modeling

    DTIC Science & Technology

    2006-09-30

    PIV algorithm. Meas. Sci. Technol. 16, 1961-1969. Phillips, O. M., Posner, F. L ., and Hansen , J. P. 2001 High resolution radar measurements of the...V8N 3P6, Canada phone: 250-472-4008, 250-363-6448 email: gemmrich@uvic.ca Michael L . Banner School of Mathematics, University of New South Wales...an allied goal. Due to the untimely passing of Dr. Tanos Elfouhaily, his role has been taken on by Dr. Bertrand Chapron, RSMAS, University of Miami

  2. High-Resolution Radar Scattering Characteristics of a Disturbed Sea Surface and Floating Debris

    DTIC Science & Technology

    1977-07-29

    theoretically and experimentally. Oil drums, logs, and aluminum-covered plastic gallon milk bottles were considered and measured. A comparison of the echoing...covered plastic bottle ,38 N R tEPO R1 8 131 0 DBSM L LJ v ’ da) B 6 GH1 0 DSM -- DBSM ib) 9.2 GHz Ils Fig. 29 - Vertically polarized return from wave...j2 ’ NRL Report 8131 (~High-Resolution Radar Scattering Characteristics of a Disturbed Sea Surface and Floating Debris B. L. LEWIS. J. P. HANSEN. 1

  3. Solidification of Highly Undercooled Liquid Droplets

    DTIC Science & Technology

    1990-01-01

    Also, it appears that small amounts of V, Cr , and Zr can act to poison catalytic particle surfaces (17,22,48). Since the nucleation and growth...for spherical nuclei with 1(6) - O .25[2-3cos0 +cos3#]. For heterogeneous volume nucleation the value of Qs depends on the specific catalyst...Chang, Calphad , 5, 267 (1981). 73. T.L. Ngai and Y.A. Chang, Calphad , 6, 253 (1982). 74. M. Hansen and K. Anderko, Constitution of Binary Alloys, 2nd

  4. Fast time-series prediction using high-dimensional data: evaluating confidence interval credibility.

    PubMed

    Hirata, Yoshito

    2014-05-01

    I propose an index for evaluating the credibility of confidence intervals for future observables predicted from high-dimensional time-series data. The index evaluates the distance from the current state to the data manifold. I demonstrate the index with artificial datasets generated from the Lorenz'96 II model [Lorenz, in Proceedings of the Seminar on Predictability, Vol. 1 (ECMWF, Reading, UK, 1996), p. 1], the Lorenz'96 I model [Hansen and Smith, 2859:TROOCI>2.0.CO;2">J. Atmos. Sci. 57, 2859 (2000).

  5. Effect of high pressure on mesophilic lactic fermentation streptococci

    NASA Astrophysics Data System (ADS)

    Reps, A.; Kuźmicka, M.; Wiśniewska, K.

    2008-07-01

    The research concerned the effect of high pressure on mesophilic lactic fermentation streptococci, present in two cheese-making commercial inocula produced by Christian-Hansen. Water solutions of inocula were pressurized at 50-800 MPa, at room temperature, for 30-120 min. Pressurization at 50-100 MPa slightly increased or reduced the number of lactic streptococci, depending on the inoculum and pressurization time. Pressurization at 200 MPa caused a reduction in the number of streptococci by over 99.9%, whereas the pressure of 400 MPa and above almost completely inactivated streptococci. Pressurization also reduced the dynamics of microorganism growth and acidification, to the degree depending on the pressure.

  6. New approach to improve LER of EUV resist pattern by chemical and thermal treatment

    NASA Astrophysics Data System (ADS)

    Nagahara, Tatsuro; Yamamoto, Kazuma; Matsuura, Yuriko; Sekito, Takashi

    2015-03-01

    In this paper, we discuss a new approach to improve the resist roughness, which is applied after the lithography process. The ERC (Edge Roughness Controller) process is composed of two steps, 1) To deliver resist softening material at the resist surface 2) To give thermal flow at that region in the bake step. Several samples were prepared based on this concept and consistent improvement was observed. Finally, by optimizing ERC chemistry using HSP (Hansen Solubility Parameter), LWR improvement of 14.8% could be achieved.

  7. National Environmental Policy Act (NEPA) compliance at Sandia National Laboratories/New Mexico (SNL/NM)

    SciTech Connect

    Wolff, T.A.; Hansen, R.P.

    1998-08-01

    This report on National Environmental Policy Act (NEPA) compliance at Sandia National Laboratories/New Mexico (SNL/NM) chronicles past and current compliance activities and includes a recommended strategy that can be implemented for continued improvement. This report provides a list of important references. Attachment 1 contains the table of contents for SAND95-1648, National Environmental Policy Act (NEPA) Compliance Guide Sandia National Laboratories (Hansen, 1995). Attachment 2 contains a list of published environmental assessments (EAs) and environmental impact statements (EISs) prepared by SNL/NM. Attachment 3 contains abstracts of NEPA compliance papers authored by SNL/NM and its contractors.

  8. Analysis of a semiclassical model for rotational transition probabilities. [in highly nonequilibrium flow of diatomic molecules

    NASA Technical Reports Server (NTRS)

    Deiwert, G. S.; Yoshikawa, K. K.

    1975-01-01

    A semiclassical model proposed by Pearson and Hansen (1974) for computing collision-induced transition probabilities in diatomic molecules is tested by the direct-simulation Monte Carlo method. Specifically, this model is described by point centers of repulsion for collision dynamics, and the resulting classical trajectories are used in conjunction with the Schroedinger equation for a rigid-rotator harmonic oscillator to compute the rotational energy transition probabilities necessary to evaluate the rotation-translation exchange phenomena. It is assumed that a single, average energy spacing exists between the initial state and possible final states for a given collision.

  9. Proceedings of Symposium on Cost Estimating for Water Supply Planning Studies Held at Tampa, Florida on 14-16 March 1983.

    DTIC Science & Technology

    1983-09-01

    Gumerman, Culp and Hansen, 1979; U. S. EPA, 1978; Clark, 1979; Clark and Stevie , 1981A, 1981B; Clark and Morand, 1981; Clark, Stafford, and Goodrich...Other Tribalo- methanes from Drilnking Water Supplies, EPA 600/1-77-009, 11. S. EPA, Cincinnati, OH, March. Clark, R. M. and R. G. Stevie , 1981, "A...Water Supply Cost Model Tncorporatlng Spatial Variables," Land Economics, Vol. 57, No. 1, p. 18, Feb. Clark, R. M., and R. G. Stevie , 1Q81, "Analytical

  10. Nonlinear behaviour of the Chinese SSEC index with a unit root: Evidence from threshold unit root tests

    NASA Astrophysics Data System (ADS)

    Qian, Xi-Yuan; Song, Fu-Tie; Zhou, Wei-Xing

    2008-01-01

    We have investigated the behaviour of the Shanghai Stock Exchange Composite (SSEC) index for the period from 1990:12 to 2007:06 using an unconstrained two-regime threshold autoregressive (TAR) model with a unit root developed by Caner and Hansen. The method allows us to simultaneously consider nonstationarity and nonlinearity in time series that has regime switching. Our finding indicates that the Shanghai stock market exhibits nonlinear behaviour with two regimes and has unit roots in both regimes. The important implications of the threshold effect in stock markets are also discussed.

  11. [High complication rate after surgical treatment of ankle fractures].

    PubMed

    Bjørslev, Naja; Ebskov, Lars; Lind, Marianne; Mersø, Camilla

    2014-08-04

    The purpose of this study was to determine the quality and re-operation rate of the surgical treatment of ankle fractures at a large university hospital. X-rays and patient records of 137 patients surgically treated for ankle fractures were analyzed for: 1) correct classification according to Lauge-Hansen, 2) if congruity of the ankle joint was achieved, 3) selection and placement of the hardware, and 4) the surgeon's level of education. Totally 32 of 137 did not receive an optimal treatment, 11 were re-operated. There was no clear correlation between incorrect operation and the surgeon's level of education.

  12. New service rig operates with two-man crew

    SciTech Connect

    1995-07-01

    Two Bakersfield, California, entrepreneurs have developed a partially automated and remote-controlled workover rig that can complete tubing and rod jobs on relatively shallow, singles-rig type wells with a total crew of two people on the ground. The system, called Autorig, was developed by Louis Witte, president of Witte Enterprise, and James Hansen, Paragon Engineering, Bakersfield. Initial field tests in E and B Natural Resources Management Corp.`s Blackwells Corner oil field culminated two years of development work. The new system is described in this paper using photographs from a testwell demonstration.

  13. The grief account: dimensions of a contemporary bereavement genre.

    PubMed

    Dennis, Michael Robert

    2008-01-01

    The genre of the grief account is identified to include published narratives of surviving grief. Thematic analysis of Andrew Holleran's (2006) Grief: A Novel, Lolly Winston's (2004) Good Grief: A Novel, Joan Didion's (2005) The Year of Magical Thinking, and J. Canfield and M. V. Hansen's (2003) Chicken Soup for the Grieving Soul: Stories About Life, Death and Overcoming the Loss of a Loved One is informed by recent scholarship regarding eulogies and illness and dying narratives. Six dimensions (restorative, evaluative, interpretive, affirmative, affective, transformative) of contemporary grief accounts are recognized as sources of inspiration for the practice and experience of bereavement.

  14. Initial Burn Pan (JMTF) Testing Results

    DTIC Science & Technology

    2016-03-01

    Hansen & A. Balsley Public | March 2016 2.3 Burn Pan Water During filling of the burn pan, a high volume submersible pump was placed on a small...platform located between the Ex-USS Shadwell and LSI. The water used to fill the burn pan was drawn directly from Mobile Bay. The pump was connected to...Figure 6. The fuel tank was equipped with an integral electric pump that was used to supply the fuel to the burn pan during the test. The fuel tank

  15. An Activity-Driven Model for an Interactional Notion of Context

    DTIC Science & Technology

    2009-06-01

    the user has them immediately available, instead of having to dig through hierarchies of lists and folders for them. Abowd and Mynatt [55] pointed...5, pp. 211–243, 1986. [35] B. MacIntyre, E. D. Mynatt , S. Voida, K. M. Hansen, J. Tullio, and G. M. Corso, “Support for multitasking and background...University Press, Jul. 2005. [55] G. D. Abowd and E. D. Mynatt , “Charting past, present, and future research in ubiquitous computing,” ACM Trans. Comput

  16. Exploiting the Cognitive and Social Benefits of Physically Large Displays

    DTIC Science & Technology

    2004-08-01

    contextual information made users more efficient at tasks that required them to view the focal in- formation at multiple levels of detail. MacIntyre, Mynatt ...systems are now commercially available (e.g. SMART Board™, see Figure 2.5). In the Flatland project, Mynatt , Igarashi, Edwards, and LaMarca (1999...Transactions on Graphics, 11(4), 336-347. MacIntyre, B., Mynatt , E.D., Voida, S., Hansen, K.M., Tullio, J., & Corso, G.M. (2001). Support for multitasking

  17. Reactive Ion Etching of Selected Polymers in O2 and CF4/O2

    DTIC Science & Technology

    1991-12-18

    methyl ether and nitrate ). At a power density of 0.50 watt/rcm 2 the etch rates were about 75 to 80% higher than those at the lower power density. The...5. 2 . B. C. Dems, F. Rodriguez, C. M. Solbrig, Y. M. N. Namaste, and S. K. Obendorf, Int. Polym. Proc., 4, 183 (1989). 3. R. H. Hansen , J. V. Pascale...00 6H4 ----0HO00o )l* H PTFP - H -C6H-4-O-CO-CF 3 Table 3 Plasticizers Abbrev. Chemical name Supplier C DOS Di- 2 - ethylhexyl sebacate C. P. Hall 0.27

  18. A Novel Anti-Beta2-Microglobulin Antibody Inhibition of Androgen Receptor Expression, Survival, and Progression in Prostate Cancer Cells

    DTIC Science & Technology

    2010-05-01

    Biochemistry 1973;12(24):4811-22. 5. Pedersen LO, Hansen AS, Olsen AC, Gerwien J, Nissen MH, Buus S. The interaction between beta 2- microglobulin (beta 2m...CHEMISTRY VOL. 285, NO. 11, pp. 7947–7956, March 12, 2010 © 2010 by The American Society for Biochemistry and Molecular Biology, Inc. Printed in the... Devlin , H. L., and Mudryj, M. (2009) Cancer Lett. 274, 177–186 54. Brooke, G. N., and Bevan, C. L. (2009) Curr. Genomics 10, 18–25 55. Fuhrman, B

  19. West Europe Report, Science and Technology.

    DTIC Science & Technology

    2007-11-02

    34 ’ Bruno Hansen’s evaluation is an unstated but clear indication of a distinction from the better known insulin-producing giant enterprise of Novo. The...developing countries like this attitude." "For 20 years, we have been hearing that we shall be crushed by the large giant companies. But that has thus not...TWO SUBSIDIARIES Paris L’USINE NOUVELLE in French 19 Sep 85 p 51’ [Article by Antoine Schoen] [Text] At a time when giants such as Matra are

  20. Aerosol Optical Depth Analysis with NOAA GOES and POES in the Western Atlantic

    DTIC Science & Technology

    2006-02-17

    Monterey, CA, 73 pp . Charlson, R. J., S. E. Swartz, J. M. Hales, R. D. Cess, J. A. Coakley, Jr., J. E. Hansen and D. J. Hoffman, 1992: Climate forcing by...in the western Atlantic. M.S. Thesis, Naval Postgraduate School, Monterey, CA, 81 pp . Maring, H., D. L. Savoie, M. A. Izaguirre, C. McCormick, R...properties using the NOAA POES AVHRR during ACE-l, TARFOX, and ACE-2. M.S. Thesis, Naval Postgraduate School, Monterey, CA, 58 pp . 20 Turner, R., 1973

  1. Formulation strategies for optimizing the morphology of polymeric bulk heterojunction organic solar cells: a brief review

    NASA Astrophysics Data System (ADS)

    Vongsaysy, Uyxing; Bassani, Dario M.; Servant, Laurent; Pavageau, Bertrand; Wantz, Guillaume; Aziz, Hany

    2014-01-01

    Polymeric bulk heterojunction (BHJ) organic solar cells represent one of the most promising technologies for renewable energy with a low fabrication cost. Control over BHJ morphology is one of the key factors in obtaining high-efficiency devices. This review focuses on formulation strategies for optimizing the BHJ morphology. We address how solvent choice and the introduction of processing additives affect the morphology. We also review a number of recent studies concerning prediction methods that utilize the Hansen solubility parameters to develop efficient solvent systems.

  2. Different methods to select the best extraction system for solid-phase extraction.

    PubMed

    Bielicka-Daszkiewicz, Katarzyna

    2015-02-01

    The optimization methods for planning a solid-phase extraction experiment are presented. These methods are based on a study of interactions between different parts of an extraction system. Determination of the type and strength of interaction depends on the physicochemical properties of the individual components of the system. The main parameters that determine the extraction properties are described in this work. The influence of sorbents' and solvents' polarity on extraction efficiency, Hansen solubility parameters and breakthrough volume determination on sorption and desorption extraction step are discussed.

  3. The parametric transition of strange matter rings to a black hole

    NASA Astrophysics Data System (ADS)

    Labranche, Hendrick; Petroff, David; Ansorg, Marcus

    2007-02-01

    It is shown numerically that strange matter rings permit a continuous transition to the extreme Kerr black hole. The multipoles as defined by Geroch and Hansen are studied and suggest a universal behaviour for bodies approaching the extreme Kerr solution parametrically. The appearance of a ‘throat region’, a distinctive feature of the extreme Kerr spacetime, is observed. With regard to stability, we verify for a large class of rings, that a particle sitting on the surface of the ring never has enough energy to escape to infinity along a geodesic.

  4. LETTER TO THE EDITOR: Information complexity-based regularization parameter selection for solution of ill conditioned inverse problems

    NASA Astrophysics Data System (ADS)

    Urmanov, A. M.; Gribok, A. V.; Bozdogan, H.; Hines, J. W.; Uhrig, R. E.

    2002-04-01

    We propose an information complexity-based regularization parameter selection method for solution of ill conditioned inverse problems. The regularization parameter is selected to be the minimizer of the Kullback-Leibler (KL) distance between the unknown data-generating distribution and the fitted distribution. The KL distance is approximated by an information complexity criterion developed by Bozdogan. The method is not limited to the white Gaussian noise case. It can be extended to correlated and non-Gaussian noise. It can also account for possible model misspecification. We demonstrate the performance of the proposed method on a test problem from Hansen's regularization tools.

  5. Grammatical sensitivity and working memory in children with language impairment

    PubMed Central

    Marton, Klara; Campanelli, Luca; Farkas, Lajos

    2013-01-01

    Children with primary language impairment (LI) show a deficit in processing different grammatical structures, verb inflections, and syntactically complex sentences among other things (Clahsen–Hansen 1997; Leonard et al. 1997). Cross-linguistic research has shown that the pattern of performance is language-specific. We examined grammatical sensitivity to word order and agreement violations in 50 Hungarian-speaking children with and without LI. The findings suggest a strong association between sensitivity to grammatical violations and working memory capacity. Variations in working memory performance predicted grammatical sensitivity. Hungarian participants with LI exhibited a weakness in detecting both agreement and word order violations. PMID:23440891

  6. New records of Helophoridae, Hydrochidae, and Hydrophilidae (Coleoptera) from New Brunswick, Canada

    PubMed Central

    Webster, Reginald P.; Sweeney, Jon D.

    2016-01-01

    Abstract The following three species of Helophoridae are newly recorded for New Brunswick, Canada: Helophorus (Kyphohelophorus) turberculatus Gyllenhal, Helophorus (Rhopaleloporus) oblongus LeConte, Helophorus (Rhopaleloporus) marginicollis Smetana. Hydrochus subcupreus Randall, family Hydrochidae, and the following 15 species of Hydrophilidae are newly reported for the province: Berosus fraternus LeConte, Berosus peregrinus (Herbst), Berosus sayi Hansen, Paracymus despectus (LeConte), Chaetarthria atra (LeConte), Cymbiodyta acuminata Fall, Cymbiodyta blanchardi Horn, Cymbiodyta minima Notman, Enochrus (Lumetus) hamiltoni Horn, Enochrus (Methydrus) consors (LeConte), Enochrus (Methydrus) consortus Green, Enochrus (Methydrus) pygmaeus nebulosus (Say), Cercyon (Cercyon) cinctus Smetana, Cercyon (Cercyon) herceus frigidus Smetana, Cercyon (Dicyrtocercyon) ustulatus (Preyssler). PMID:27110166

  7. Application of Nondestructive Testing Techniques to Materials Testing.

    DTIC Science & Technology

    1986-02-01

    7D-Al?2 605 APPLICATION OF NONDESTRUCTIVE TESTING TECHNIQUES To / MATERIALS TESTING(U) STANFORD UNIV CA EDWARD L GINZTON LAB OF PHYSICS G S KIND FEB...U EDWARD L. GINTZON LAB, W.W. HANSEN LAB OF PHYSIC ! 2306/A2 (%J STANFORD CA 94305’ 11 ,. CONTROLLING OFFICE NAME AND ADDRESS 12. REPORT DATE Feb 1986...we could improve optical systems by employing modern electronic techniques within the optical system. Our purpose has been to make accurate profile

  8. Analytical methods and apparatus for measuring the oil content of sponge core

    SciTech Connect

    Vinegar, H.J.; DiFoggio, R.; Tutunjian, P.N.

    1989-09-19

    This patent describes a method for use in determining the oil saturation of an earth formation by means of sponge coring, using polyurethane sponge. It comprises: dissolving substantially all of the oil and substantially none of the sponge, in a sponge core sample, into a solvent having a Hansen solubility parameter of different than that of the sponge and selected from the class consisting of: solvents having no protons in their structure, deuterated solvents, and solvents having no C-H bonds in their structure; extracting the solvent and solutes from the core sample; and measuring the resultant oil concentration in the solvent and solutes extracted from the core sample.

  9. 102. Interior view of utilidor passageway link between building nos. ...

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

    102. Interior view of utilidor passageway link between building nos. 101 and 102 showing waveguides on left and cable tray system on right sides. Note fire suppression water supply piping (upper center). Small maintenance 3-wheel vehicle at center (Note: similar vehicles still in use in 2001.) Official photograph BMEWS Project by Hansen, Photographic Services, Riverton, NJ, BMEWS, clear as negative no. A-101123. - Clear Air Force Station, Ballistic Missile Early Warning System Site II, One mile west of mile marker 293.5 on Parks Highway, 5 miles southwest of Anderson, Anderson, Denali Borough, AK

  10. [Diverticulitis and indication for surgery--are there new data?].

    PubMed

    Weimann, A; Hirsch, W D; Schiefke, I

    2013-12-01

    The treatment in acute diverticulitis has undergone a considerable shift from an offensive to a more restrictive and individual indication for surgery. This review of the very recent literature with special regard to long-term observation of conservatively treated patients clearly shows that surgery is not required in any case of a first episode of severe diverticulitis, but should be recommended in high-risk patients under immunosuppression or chronic renal failure. In all other groups of patients the indication for surgery should be weighed on an individual basis after each episode, again aiming for the laparoscopic procedure. A therapeutic algorithm is proposed according to the Hansen-Stock classification.

  11. Magnetoplasmadynamics (MPD)

    NASA Technical Reports Server (NTRS)

    1965-01-01

    Dr. Marc Feix: Dr. Marc Feix was a French nuclear scientist who worked a few years at Langley during the mid-1960s. 'Feix was nominally assigned to Robert Hess's Plasma Physics Section, but he actually worked with various people throughout the branch.' James Hansen stated: 'Most notable of [the new research fields] was magnetoplasmadynamics (MPD)--a genuine product of the space age and an esoteric field of scientific research for an engineering- and applications-oriented place like Langley. If any 'mad scientist' were working at Langley in the 1960s, they were the plasma physicists, nuclear fusion enthusiasts, and space-phenomena researchers found in the intense and, for a while, rather glamourous little group investigating MPD. No group of researchers in NASA moved farther away from classical aerodynamics or from the NACA's traditional focus on the problems of airplanes winging their way through the clouds than those involved with MPD.' Published in James R. Hansen, Spaceflight Revolution: NASA Langley Research Center From Sputnik to Apollo, NASA SP-4308, p. 121.

  12. Polarisation of Planets and Exoplanets

    NASA Astrophysics Data System (ADS)

    Bailey, Jeremy; Kedziora-Chudczer, Lucyna; Bott, Kimberly; Cotton, Daniel V.

    2015-11-01

    We present observations of the linear polarisation of several hot Jupiter systems with our new high-precision polarimeter HIPPI (HIgh Precision Polarimetric Instrument). By looking at the combined light of the star and planet we aim to detect the polarised light reflected from the planet's atmosphere. This can provide information on the presence of, and nature of clouds in the atmosphere, and constrain the geometric albedo of the planet. The method is applicable to both transitting and non-transitting planets, and can also be used to determine the inclination of the system, and thus the true mass for radial velocity detected planets.To predict and interpret the polarisation from such observations, we have also developed an advanced polarimetric modelling capability, by incoroporating full polarised radiative transfer into our atmospheric modelling code VSTAR. This is done using the VLIDORT vector radiative transfer solver (Spurr, 2006). The resulting code allows us to predict disc-resolved, phase-resolved, and spectrally-resolved intensity and linear polarisation for any planet, exoplanet, brown dwarf or cool star atmosphere that can be modelled with VSTAR. We have tested the code by reproducing benchmark calculations in polarised radiative transfer, and by Solar System test cases, including reproducing the classic Hansen and Hovenier (1974) calculation of the polarisation phase curves of Venus.Hansen, J.E., & Hovenier, J.W., 1974, J. Atmos. Sci., 31, 1137Spurr, R., 2006, JQSRT, 102, 316.

  13. Retrieval of Venus' clouds and hazes properties with polarimetric data from SPICAV/VEx

    NASA Astrophysics Data System (ADS)

    Rossi, L.; Marcq, E.; Bott, N.; Montmessin, F.; Fedorova, A.; Stam, D.; Bertaux, J.-L.; Korablev, O.

    2015-10-01

    The study of Venus' cloud layers is important in order to understand the structure, radiative balance and dynamics of the Venusian atmosphere. Polarization measurements have given important constraints for the determination of the constituents of the clouds and haze. From ground based observations, Hansen and Hovenier[3], using a radiative transfer model including polarization, found that the main cloud layers between 50 and 70 km consist of r˜1μm radius spherical droplets of a H 2SO4-H2O solution. In the early 1980s, Kawabata[4] used the polarization data from the OCPP instrument on the spacecraft Pioneer Venus to constrain the properties of the overlying haze. They found that the haze layer is composed of smaller particles with r˜0.25μm and similar refractive indices. Our work reproduces the method used by Hansen and Kawabata[3, 4]. We applied a radiative transfer model with polarization on the polarization data of the SPICAV-IR instrument on-board ESA's Venus Express. Our aim is to better constrain haze and cloud particles at the top of Venus's clouds, as well as their spatial and temporal variability.

  14. Pervaporation of Water-Dye, Alcohol-Dye, and Water-Alcohol Mixtures Using a Polyphosphazene Membrane

    SciTech Connect

    Orme, Christopher Joseph; Harrup, Mason Kurt; Mccoy, John Dwane; Weinkauf, D. H.; Stewart, Frederick Forrest

    2002-03-01

    A novel phosphazene heteropolymer (HPP) was synthesized that contained three differing pendant groups: 2-(2-methoxyethoxy)ethanol (MEE), 4-methoxyphenol, and 2-allylphenol. The resulting polymer is an amorphous elastomer with good film forming properties where MEE and 4-methoxyphenol pendant groups influenced the hydrophilicity and the solvent compatibility of the polymer. Sorption studies were performed to characterize the polymer in terms of Hansen solubility parameters. Additionally, group contributions were used to predict the Hansen parameters for the polymer and these data compared favorably with the observed solubility behavior with 15 solvents that ranged from hydrocarbons to water. Homopolymers synthesized from MEE and 4-methoxyphenol were also studied for solubility revealing different behaviors with each representing a limit in hydrophilicity; MEE formed a water-soluble hydrophilic polymer and 4-methoxyphenol yielded a hydrophobic polymer. Membranes formed from HPP were characterized for use as pervaporation membranse using five different feeds: water–dye, methanol–dye, 2-propanol–dye, water–2-propanol, and water–methanol. Fluxes of methanol and isopropanol were greater than for water. For the alcohol–water separations, the alcohol was the favored permeate in all cases with higher fluxes observed for higher alcohol feed concentrations, however, separation factors declined.

  15. Volatile Transport Implications from the New Horizons Flyby of Pluto

    NASA Astrophysics Data System (ADS)

    Young, Leslie; Grundy, William M.; Binzel, RIchard P.; Earle, Alissa M.; Linscott, Ivan R.; Hinson, David P.; Zangari, Amanda M.; McKinnon, William B.; Stern, S. Alan; Weaver, Harold A.; Olkin, Catherine B.; Ennico, Kimberly; Gladstone, G. Randall; Summers, Michael E.; Moore, Jeffrey M.; Spencer, John R.

    2015-11-01

    The New Horizons flyby of Pluto has revealed a striking range of terrains, from the very bright region informally named Sputnik Planum, to very dark regions such as the informally named Cthulhu Regio. Such a variety was beyond the scope of recent models of Pluto's seasonal volatile cycle (Young 2013, ApJL 766, L22; Hansen, Paige and Young 2015, Icarus 246, 183), which assumed globally uniform substrate albedos. The "Exchange with Pressure Plateau (EPP)" class of models in Young (2013) and the favored runs from Hansen et al (2015) had long periods of exchange of volatiles between northern and southern hemispheres. In these models, the equators were largely devoid of volatiles; even though the equatorial latitudes received less insolation than the poles over a Pluto year, they were never the coldest place on the icy world. New models that include a variety of substrate albedos can investigate questions such as whether Sputnik Planum has an albedo that is high enough to act as a local cold trap for much of Pluto's year. We will present the implications of this and other assumption-busting revelations from the New Horizons flyby. This work was supported by NASA’s New Horizons project.

  16. Ionic microgels as model systems for colloids with an ultrasoft electrosteric repulsion: Structure and thermodynamics

    NASA Astrophysics Data System (ADS)

    Gottwald, D.; Likos, C. N.; Kahl, G.; Löwen, H.

    2005-02-01

    We present a theoretical analysis of the structural properties and phase behavior of spherical, loosely cross-linked ionic microgels that possess a low monomer concentration. The analysis is based on the recently derived effective interaction potential between such particles [A. R. Denton, Phys. Rev. E 67, 011804 (2003)]. By employing standard tools from the theory of the liquid state, we quantitatively analyze the pair correlations in the fluid and find anomalous behavior above the overlap concentration, similar to the cases of star-branched neutral and charged polymers. We also employ an evolutionary algorithm in order to predict the crystalline phases of the system without any a priori assumptions regarding their symmetry class. A very rich phase diagram is obtained, featuring two reentrant melting transitions and a number of unusual crystal structures. At high densities, both the Hansen-Verlet freezing criterion [J.-P. Hansen and L. Verlet, Phys. Rev. 184, 151 (1969)] and the Lindemann melting criterion [F. A. Lindemann, Phys. Z. 11, 609 (1910)] lose their validity. The topology of the phase diagram is altered when the steric interactions between the polymer segments become strong enough, in which case the lower-density reentrant melting disappears and the region of stability of the fluid is split into two disconnected domains, separated by intervening fcc and bcc regions.

  17. Self-assembly of 2,3-dihydroxycholestane steroids into supramolecular organogels as a soft template for the in-situ generation of silicate nanomaterials

    PubMed Central

    Edelsztein, Valeria C; Mac Cormack, Andrea S; Ciarlantini, Matías

    2013-01-01

    Summary Supramolecular gels are an important and interesting class of soft materials that show great potential for many applications. Most of them have been discovered serendipitously, and understanding the supramolecular self-assembly that leads to the formation of the gel superstructure is the key to the directed design of new organogels. We report herein the organogelating property of four stereoisomers of the simple steroid 2,3-dihydroxycholestane. Only the isomer with the trans-diaxial hydroxy groups had the ability to gelate a broad variety of liquids and, thus, to be a super-organogelator for hydrocarbons. The scope of solvent gelation was analysed with regard to two solvent parameters, namely the Kamlet–Taft and the Hansen solubility parameters. The best correlation was observed with the Hansen approach that revealed the existence of two clear gelation zones. We propose a general model of self-assembly through multiple intermolecular hydrogen bonds between the 1,2-dihydroxy system, which is based on experimental data and computational simulations revealing the importance of the di-axial orientation of the hydroxy groups for the one-dimensional self-assembly. Under controlled conditions, the fibrillar superstructure of the organogel was successfully used as a template for the in-situ sol–gel polymerization of tetraethoxysilane and the further preparation of silica nanotubes. We propose that the driving forces for templating are hydrogen bonding and electrostatic interactions between the anionic silicate intermediate species and the self-assembled fibrillar network. PMID:24062849

  18. DROMO Propagator Revisited

    NASA Astrophysics Data System (ADS)

    Urrutxua, H.; Sanjurjo-Rivo, M.; Peláez, J.

    2013-12-01

    In year 2000 a house-made orbital propagator was developed by the SDGUPM (former Grupo de Dinámica de Tethers) based in a set of redundant variables including Euler parameters. This propagator was called DROMO. and it was mainly used in numerical simulations of electrodynamic tethers. It was presented for the first time in the international meeting V Jornadas de Trabajo en Mecánica Celeste, held in Albarracín, Spain, in 2002 (see reference 1). The special perturbation method associated with DROMO can be consulted in the paper.2 In year 1975, Andre Deprit in reference 3 proposes a propagation scheme very similar to the one in which DROMO is based, by using the ideal frame concept of Hansen. The different approaches used in references 3 and 2 gave rise to a small controversy. In this paper we carried out a different deduction of the DROMO propagator, underlining its close relation with the Hansen ideal frame concept, and also the similarities and the differences with the theory carried out by Deprit in 3. Simultaneously we introduce some improvements in the formulation that leads to a more synthetic propagator.

  19. Multipole moments of bumpy black holes

    SciTech Connect

    Vigeland, Sarah J.

    2010-11-15

    General relativity predicts the existence of black holes, compact objects whose spacetimes depend only on their mass, spin, and charge in vacuum (the 'no-hair' theorem). As various observations probe deeper into the strong fields of black hole candidates, it is becoming possible to test this prediction. Previous work suggested that such tests can be performed by measuring whether the multipolar structure of black hole candidates has the form that general relativity demands, and introduced a family of 'bumpy black hole' spacetimes to be used for making these measurements. These spacetimes have generalized multipoles, where the deviation from the Kerr metric depends on the spacetime's 'bumpiness'. In this paper, we show how to compute the Geroch-Hansen moments of a bumpy black hole, demonstrating that there is a clean mapping between the deviations used in the bumpy black hole formalism and the Geroch-Hansen moments. We also extend our previous results to define bumpy black holes whose current moments, analogous to magnetic moments of electrodynamics, deviate from the canonical Kerr value.

  20. Questa Baseline and Pre-mining Ground-Water Quality Investigation, 7. A Pictorial Record of Chemical Weathering, Erosional Processes, and Potential Debris-flow Hazards in Scar Areas Developed on Hydrothermally Altered Rocks

    USGS Publications Warehouse

    Plumlee, Geoffrey S.; Ludington, Steve; Vincent, Kirk R.; Verplanck, Philip L.; Caine, Jonathan S.; Livo, K. Eric

    2009-01-01

    Erosional scar areas developed along the lower Red River basin, New Mexico, reveal a complex natural history of mineralizing processes, rapid chemical weathering, and intense physical erosion during periodic outbursts of destructive, storm-induced runoff events. The scar areas are prominent erosional features with craggy headwalls and steep, denuded slopes. The largest scar areas, including, from east to west, Hottentot Creek, Straight Creek, Hansen Creek, Lower Hansen Creek, Sulfur Gulch, and Goat Hill Gulch, head along high east-west trending ridges that form the northern and southern boundaries of the lower Red River basin. Smaller, topographically lower scar areas are developed on ridge noses in the inner Red River valley. Several of the natural scar areas have been modified substantially as a result of large-scale open-pit and underground mining at the Questa Mine; for example, much of the Sulfur Gulch scar was removed by open pit mining, and several scars are now partially or completely covered by mine waste dumps.

  1. Echo 1 container

    NASA Technical Reports Server (NTRS)

    1964-01-01

    Echo 1 container: The design of this container was one of the most difficult technical tasks. Hansen writes: 'After several weeks of examining potential solutions to this problem, the Langley engineers narrowed the field of ideas to five. They then built working models of these five container designs, and 12-foot-diameter models of the satellite for simulation studies. With help from Langley's Engineering Service and Mechanical Service divisions, the Echo group built a special 41-foot-diameter spherical vacuum chamber equipped with pressure-proof windows. There the dynamics of opening the container and inflating the satelloon could be studies as the satelloon fell to the bottom of the tank.' 'The container-opening mechanism that eventually resulted from these vacuum tests was surely one of the oddest explosive devices ever contrived. The container was a sphere that opened at its equator into top and bottom hemispheres. the top half fit on the bottom half much like a lid fits snugly atop a kitchen pot. The joint between the two hemispheres, therefore, formed a sliding valve. The halves had to move apart an inch or two before the canister was actually open. It was in this joint between the hemispheres that the charge was placed.' The whole whole system was laced together with fishing line which resulted in many disdainful comments from visiting scientists and engineers but the system worked. Published in James R. Hansen, Spaceflight Revolution: NASA Langley Research Center From Sputnik to Apollo, (Washington: NASA, 1995), p. 180.

  2. Pliocene and Pleistocene geologic and climatic evolution in the San Luis Valley of south-central Colorado

    USGS Publications Warehouse

    Rogers, K.L.; Larson, E.E.; Smith, G.; Katzman, D.; Smith, G.R.; Cerling, T.; Wang, Y.; Baker, R.G.; Lohmann, K.C.; Repenning, C.A.; Patterson, P.; Mackie, G.

    1992-01-01

    Sediments of the Alamosa Formation spanning the upper part of the Gauss and most of the Matuyama Chrons were recovered by coring in the high (2300 m) San Luis Valley of south-central Colorado. The study site is located at the northern end of the Rio Grande rift. Lithologic changes in the core sediments provide evidence of events leading to integration of the San Luis drainage basin into the Rio Grande. The section, which includes the Huckleberry Ridge Ash (2.02 Ma) and spans the entire Matuyama Chron, contains pollen, and invertebrate and vertebrate fossils. Stable isotope analyses of inorganic and biogenic carbonate taken over most of the core indicate substantially warmer temperatures than occur today in the San Luis Valley. At the end of the Olduvai Subchron, summer precipitation decreased, summer pan evaporation increased, and temperatures increased slightly compared to the earlier climate represented in the core. By the end of the Jaramillo Subchron, however, cold/wet and warm/dry cycles become evident and continue into the cold/wet regime associated with the deep-sea oxygen-isotope Stage 22 glaciation previously determined from outcrops at the same locality. Correspondence between the Hansen Bluff climatic record and the deep-sea oxygen-isotope record (oxygen-isotope stages from about 110-18) is apparent, indicating that climate at Hansen Bluff was responding to global climatic changes. ?? 1992.

  3. Determination of Solubility Parameters of Ibuprofen and Ibuprofen Lysinate.

    PubMed

    Kitak, Teja; Dumičić, Aleksandra; Planinšek, Odon; Šibanc, Rok; Srčič, Stanko

    2015-12-03

    In recent years there has been a growing interest in formulating solid dispersions, which purposes mainly include solubility enhancement, sustained drug release and taste masking. The most notable problem by these dispersions is drug-carrier (in)solubility. Here we focus on solubility parameters as a tool for predicting the solubility of a drug in certain carriers. Solubility parameters were determined in two different ways: solely by using calculation methods, and by experimental approaches. Six different calculation methods were applied in order to calculate the solubility parameters of the drug ibuprofen and several excipients. However, we were not able to do so in the case of ibuprofen lysinate, as calculation models for salts are still not defined. Therefore, the extended Hansen's approach and inverse gas chromatography (IGC) were used for evaluating of solubility parameters for ibuprofen lysinate. The obtained values of the total solubility parameter did not differ much between the two methods: by the extended Hansen's approach it was δt = 31.15 MPa(0.5) and with IGC it was δt = 35.17 MPa(0.5). However, the values of partial solubility parameters, i.e., δd, δp and δh, did differ from each other, what might be due to the complex behaviour of a salt in the presence of various solvents.

  4. Performance of PCR-reverse blot hybridization assay for detection of rifampicin-resistant Mycobacterium leprae.

    PubMed

    Wang, Hye-young; Kim, Hyunjung; Kim, Yeun; Bang, Hyeeun; Kim, Jong-Pill; Hwang, Joo Hwan; Cho, Sang-Nae; Kim, Tae Ue; Lee, Hyeyoung

    2015-10-01

    Drug resistance in Mycobacterium leprae is a significant problem in countries where leprosy is endemic. A sensitive, specific, and high-throughput reverse blot hybridization assay (REBA) for the detection of genotypic resistance to rifampicin (RIF) was designed and evaluated. It has been shown that resistance to RIF in M. leprae involves mutations in the rpoB gene encoding the -subunit of the RNA polymerase. The PCR-REBA simultaneously detects both 6 wild-type regions and 5 different mutations (507 AGC, 513 GTG, 516 TAT, 531 ATG, and 531 TTC) including the most prevalent mutations at positions 507 and 531. Thirty-one clinical isolates provided by Korea Institute of Hansen-s Disease were analyzed by PCR-REBA with RIF resistance of rpoB gene. As a result, missense mutations at codons 507 AGC and 531 ATG with 2-nucleotide substitutions were found in one sample, and a missense mutation at codon 516 TAT and ΔWT6 (deletion of 530-534) was found in another sample. These cases were confirmed by DNA sequence analysis. This rapid, simple, and highly sensitive assay provides a practical alternative to sequencing for genotypic evaluation of RIF resistance in M. leprae.

  5. Effects of Flaming Gorge Dam hydropower operations on sediment transport in the Browns Park reach of the Green River, Utah and Colorado

    SciTech Connect

    Williams, G.P.; Tomasko, D.; Cho, H.E.; Yin, S.C.L.

    1995-05-01

    Three methods for comparing sediment transport were applied to four proposed hydropower operational scenarios under study for Flaming Gorge Dam on the Green River in Utah. These methods were effective discharge, equilibrium potential, and cumulative sediment load with flow exceedance plots. Sediment loads transported by the Green River in the Browns Park reach were calculated with the Engelund-Hansen equation for three historical water years and four hydropower operational scenarios. A model based on the Engelund-Hansen equation was developed using site-specific information and validated by comparing predictions for a moderate water year with measured historical values. The three methods were used to assess the impacts of hydropower operational scenarios on sediment resources. The cumulative sediment load method provided the most useful information for impact evaluation. Effective discharge was not a useful tool because of the limited number of discrete flows associated with synthetic hydrographs for the hydropower operational scenarios. The equilibrium potential method was relatively insensitive to the variations in operating conditions, rendering it comparatively ineffective for impact evaluation.

  6. A history of leprosy in Iran during the 19th and 20th centuries.

    PubMed

    Azizi, Mohammad Hossein; Bahadori, Moslem

    2011-11-01

    From ancient time leprosy has been regarded as a terrifying, stigmatized disease; nevertheless, its cause remained unidentified up to the late 19th century. For centuries numerous leprosy victims worldwide suffered from its morbidity and were socially isolated. The afflicted individuals were segregated because they were considered 'unclean' and had to live in leper colonies, generally under very poor conditions. Physicians believed that leprosy was an incurable, highly contagious, and hereditary disease. In 1873 the Norwegian physician, Gerhard Armauer Hansen (1841-1912), ended the myth of leprosy and discovered its causative agent, known as Mycobacterium leprae. Hansen's discovery was a great triumph in the fight against leprosy. In the 1930's, the first effective antileprosy drug, dapsone, was introduced and in the early 1980's multi-drug therapy was popularized because of high efficacy in resistant cases. Here, we have presented a brief look at the history of leprosy in the world with special focus on the historical account of leprosy in Iran, particularly during the 19th and 20th centuries.

  7. Discovery of low mucus adhesion surfaces.

    PubMed

    Gu, Minghao; Yildiz, Hasan; Carrier, Rebecca; Belfort, Georges

    2013-02-01

    Mucus secretion from the body is ubiquitous, and finding materials that resist mucus adhesion is a major technological challenge. Here, using a high throughput platform with photo-induced graft polymerization, we first rapidly synthesized, screened and tested a library of 55 different surfaces from six functional monomer classes to discover porcine intestinal low mucus adhesion surfaces using a 1h static mucus adsorption protocol. From this preliminary screen, two chemistries, a zwitterionic ([2-(acryloyloxy)ethyl] trimethylammonium chloride) and a multiple hydroxyl (N-[tris(hydroxymethyl)methyl]acrylamide) surface, exhibited significantly low mucus adhesion from a Langmuir-type isotherm when exposed to increasing concentrations of mucus for 24 h. Apolar or hydrophobic interactions were likely the dominant attractive forces during mucus binding since many polar or hydrophilic monomers reduced mucus adhesion. Hansen solubility parameters were used to illustrate the importance of monomer polarity and hydrogen bonding in reducing mucus adsorption. For a series of polyethylene glycol (PEG) monomers with changing molecular weight from 144 g mol⁻¹ to 1100 g mol⁻¹, we observed an excellent linear correlation (R²=0.998) between relative amount adsorbed and the distance from a water point in a specialized Hansen solubility parameter plot, emphasizing the role of surface-water interactions for PEG modified surfaces.

  8. A new method to determine the partial solubility parameters of polymers from intrinsic viscosity.

    PubMed

    Bustamante, Pilar; Navarro-Lupión, Javier; Escalera, Begoña

    2005-02-01

    A modification of the extended Hansen method, formerly used to determine the partial solubility parameters of drugs and non-polymeric excipients is tested with a polymer for the first time. The proposed method relates the logarithm of the intrinsic viscosities of the polymer in a series of solvents and solvent mixtures with the Hansen (three parameter model) and Karger (four parameter model) partial solubility parameters. The viscosity of diluted solutions of hydroxypropyl methylcellulose (HPMC) was determined in pure solvents and binary mixtures of varying polarity. The intrinsic viscosity was obtained from the common intercept of the Huggins and Kraemer relationships. The intrinsic viscosity tends to increase with increasing the solubility parameter of the medium. The results show that hydrogen bonding and polarity of the polymer largely determine polymer-solvent interactions. The models proposed provided reasonable partial and total solubility parameters for the polymer and enable one to quantitatively characterize, for the first time, the Lewis acid-base ability of a polymer thus, providing a more realistic picture of hydrogen bonding for solvent selection/compatibility and to predict drug-polymer interactions. Combination of the dispersion and polar parameters into a single non-specific solubility parameter was also tested. The results extend earlier findings and suggest that the models are quite versatile and may be applied to drugs, non-polymeric and polymeric excipients.

  9. Determination of solubility parameters for poly(3-hydroxyalkanoates).

    PubMed

    Terada, M; Marchessault, R H

    1999-01-01

    The three dimensional solubility parameters defined by Hansen are based on dispersion forces between structural units, interaction between polar groups and hydrogen bonding. For polar polymers such as poly(3-hydroxyalkanoates), P(3HA), this approach was used to obtain the three coordinates of a solubility parameter in terms of: a dispersion part, a polar part and a hydrogen bonding part. Thirty-eight different solvents for poly(3-hydroxybutyrate), PHB, which are mentioned in the literature are examined by this method and the theoretical predictions are compared with the experimental reports. Another overall comparison between PHA polymers provides their Hansen and Hildebrand parameters for side chain lengths up to C13. In this series a linear progression in calculated solubility parameters with side chain length was found. An Appendix provides information and data on calculation of the solubility parameters. While the solubility information is limited and only covers homopolymers, it should help to highlight some of the contradictions regarding PHB solubility. This semi-empirical approach is only valid for amorphous polymers hence crystallinity effects, which are important with PHB, as well as molecular weight effects still require analysis.

  10. Self-assembly of 2,3-dihydroxycholestane steroids into supramolecular organogels as a soft template for the in-situ generation of silicate nanomaterials.

    PubMed

    Edelsztein, Valeria C; Mac Cormack, Andrea S; Ciarlantini, Matías; Di Chenna, Pablo H

    2013-01-01

    Supramolecular gels are an important and interesting class of soft materials that show great potential for many applications. Most of them have been discovered serendipitously, and understanding the supramolecular self-assembly that leads to the formation of the gel superstructure is the key to the directed design of new organogels. We report herein the organogelating property of four stereoisomers of the simple steroid 2,3-dihydroxycholestane. Only the isomer with the trans-diaxial hydroxy groups had the ability to gelate a broad variety of liquids and, thus, to be a super-organogelator for hydrocarbons. The scope of solvent gelation was analysed with regard to two solvent parameters, namely the Kamlet-Taft and the Hansen solubility parameters. The best correlation was observed with the Hansen approach that revealed the existence of two clear gelation zones. We propose a general model of self-assembly through multiple intermolecular hydrogen bonds between the 1,2-dihydroxy system, which is based on experimental data and computational simulations revealing the importance of the di-axial orientation of the hydroxy groups for the one-dimensional self-assembly. Under controlled conditions, the fibrillar superstructure of the organogel was successfully used as a template for the in-situ sol-gel polymerization of tetraethoxysilane and the further preparation of silica nanotubes. We propose that the driving forces for templating are hydrogen bonding and electrostatic interactions between the anionic silicate intermediate species and the self-assembled fibrillar network.

  11. Chronic ulcers and myasis as ports of entry for Clostridium tetani.

    PubMed

    Greco, J B; Sacramento, E; Tavares-Neto, J

    2001-12-01

    Evaluating tetanus immune status is not yet the usual clinical practice regarding patients with chronic ulcers or myasis. However, of 858 tetanus patients at Hospital Couto Maia (Salvador, Bahia, Brazil) aged 1 year or above, 2 had pressure ulcers and 17 had chronic ulceration of the lower limbs where these skin lesions were the ports of entry for Clostridium tetani. In these 19 cases, the following predisposing factors were described: venous insufficiency (n=6), sickle cell anemia (n=2), Hansen s disease (n=1), malnutrition (n=1), diabetes mellitus (n=1), trauma (n=1) and unknown factors (n=7). In 6 other cases, in addition to the Hansen s disease patient, the port of entry for tetanus was the site of extraction of Tunga penetrans larvae. In these 25 cases, the majority of patients (68%) were over 40 years old (17/25) and all of these patients stated that they had either not followed a tetanus toxoid vaccination regimen (19/25), or had partially completed such a regimen, or did not give precise information (6/25). Among the same series studied, over half (52%) of the patients died (13/25). We conclude that tetanus prevention must be included in the treatment of chronic skin ulcer patients, vaccination coverage should be increased among older people, and strategies aimed at improving coverage for all age groups must be reviewed.

  12. Questa baseline and pre-mining ground-water quality investigation. 14. Interpretation of ground-water geochemistry in catchments other than the Straight Creek catchment, Red River Valley, Taos County, New Mexico, 2002-2003

    USGS Publications Warehouse

    Nordstrom, D. Kirk; McCleskey, R. Blaine; Hunt, Andrew G.; Naus, Cheryl A.

    2005-01-01

    The U.S. Geological Survey, in cooperation with the New Mexico Environment Department, is investigating the pre-mining ground-water chemistry at the Molycorp molybdenum mine in the Red River Valley, New Mexico. The primary approach is to determine the processes controlling ground-water chemistry at an unmined, off-site but proximal analog. The Straight Creek catchment, chosen for this purpose, consists of the same Tertiary-age quartz-sericite-pyrite altered andesite and rhyolitic volcanics as the mine site. Straight Creek is about 5 kilometers east of the eastern boundary of the mine site. Both Straight Creek and the mine site are at approximately the same altitude, face south, and have the same climatic conditions. Thirteen wells in the proximal analog drainage catchment were sampled for ground-water chemistry. Eleven wells were installed for this study and two existing wells at the Advanced Waste-Water Treatment (AWWT) facility were included in this study. Eight wells were sampled outside the Straight Creek catchment: one each in the Hansen, Hottentot, and La Bobita debris fans, four in a well cluster in upper Capulin Canyon (three in alluvial deposits and one in bedrock), and an existing well at the U.S. Forest Service Questa Ranger Station in Red River alluvial deposits. Two surface waters from the Hansen Creek catchment and two from the Hottentot drainage catchment also were sampled for comparison to ground-water compositions. In this report, these samples are evaluated to determine if the geochemical interpretations from the Straight Creek ground-water geochemistry could be extended to other ground waters in the Red River Valley , including the mine site. Total-recoverable major cations and trace metals and dissolved major cations, selected trace metals, anions, alkalinity; and iron-redox species were determined for all surface- and ground-water samples. Rare-earth elements and low-level As, Bi, Mo, Rb, Re, Sb, Se, Te, Th, U, Tl, V, W, Y, and Zr were

  13. Comparing and correlating solubility parameters governing the self-assembly of molecular gels using 1,3:2,4-dibenzylidene sorbitol as the gelator.

    PubMed

    Lan, Yaqi; Corradini, Maria G; Liu, Xia; May, Tim E; Borondics, Ferenc; Weiss, Richard G; Rogers, Michael A

    2014-12-02

    Solvent properties play a central role in mediating the aggregation and self-assembly of molecular gelators and their growth into fibers. Numerous attempts have been made to correlate the solubility parameters of solvents and gelation abilities of molecular gelators, but a comprehensive comparison of the most important parameters has yet to appear. Here, the degree to which partition coefficients (log P), Henry's law constants (HLC), dipole moments, static relative permittivities (ε(r)), solvatochromic E(T)(30) parameters, Kamlet-Taft parameters (β, α, and π), Catalan's solvatochromic parameters (SPP, SB, and SA), Hildebrand solubility parameters (δ(i)), and Hansen solubility parameters (δ(p), δ(d), δ(h)) and the associated Hansen distance (R(ij)) of 62 solvents (covering a wide range of properties) can be correlated with the self-assembly and gelation of 1,3:2,4-dibenzylidene sorbitol (DBS) gelation, a classic molecular gelator, is assessed systematically. The approach presented describes the basis for each of the parameters and how it can be applied. As such, it is an instructional blueprint for how to assess the appropriate type of solvent parameter for use with other molecular gelators as well as with molecules forming other types of self-assembled materials. The results also reveal several important insights into the factors favoring the gelation of solvents by DBS. The ability of a solvent to accept or donate a hydrogen bond is much more important than solvent polarity in determining whether mixtures with DBS become solutions, clear gels, or opaque gels. Thermodynamically derived parameters could not be correlated to the physical properties of the molecular gels unless they were dissected into their individual HSPs. The DBS solvent phases tend to cluster in regions of Hansen space and are highly influenced by the hydrogen-bonding HSP, δ(h). It is also found that the fate of this molecular gelator, unlike that of polymers, is influenced not only by

  14. A new pan-tropical estimate of carbon loss in natural and managed forests in 2000-2012

    NASA Astrophysics Data System (ADS)

    Tyukavina, A.; Baccini, A.; Hansen, M.; Potapov, P.; Stehman, S. V.; Houghton, R. A.; Krylov, A.; Turubanova, S.; Goetz, S. J.

    2015-12-01

    Clearing of tropical forests, which includes semi-permanent conversion of forests to other land uses (deforestation) and more temporary forest disturbances, is a significant source of carbon emissions. The previous estimates of tropical forest carbon loss vary among studies due to the differences in definitions, methodologies and data inputs. The best currently available satellite-derived datasets, such as a 30-m forest cover loss map by Hansen et al. (2013), may be used to produce methodologically consistent carbon loss estimates for the entire tropical region, but forest cover loss area derived from maps is biased due to classification errors. In this study we produced an unbiased estimate of forest cover loss area from a validation sample, as suggested by good practice recommendations. Stratified random sampling was implemented with forest carbon stock strata defined based on Landsat-derived tree canopy cover, height, intactness (Potapov et al., 2008) and forest cover loss (Hansen et al., 2013). The largest difference between the sample-based and Hansen et al. (2013) forest loss area estimates occurred in humid tropical Africa. This result supports the earlier finding (Tyukavina et al., 2013) that Landsat-based forest cover loss maps may significantly underestimate loss area in regions with small-scale forest dynamics while performing well in regions with large industrial forest clearing, such as Brazil and Indonesia (where differences between sample-based and map estimates were within 10%). To produce final carbon loss estimates, sample-based forest loss area estimates for each stratum were related to GLAS-lidar derived forest biomass (Baccini et al., 2012). Our sample-based results distinguish gross losses of aboveground carbon from natural forests (0.59 PgC/yr), which include primary, mature secondary forests and natural woodlands, and from managed forests (0.43 PgC/yr), which include plantations, agroforestry systems and areas of subsistence agriculture

  15. Threshold expansion of the three-particle quantization condition

    NASA Astrophysics Data System (ADS)

    Hansen, Maxwell T.; Sharpe, Stephen R.

    2016-05-01

    We recently derived a quantization condition for the energy of three relativistic particles in a cubic box [M. T. Hansen and S. R. Sharpe, Phys. Rev. D 90, 116003 (2014); M. T. Hansen and S. R. Sharpe, Phys. Rev. D 92, 114509 (2015)]. Here we use this condition to study the energy level closest to the three-particle threshold when the total three-momentum vanishes. We expand this energy in powers of 1 /L , where L is the linear extent of the finite volume. The expansion begins at O (1 /L3), and we determine the coefficients of the terms through O (1 /L6). As is also the case for the two-particle threshold energy, the 1 /L3, 1 /L4 and 1 /L5 coefficients depend only on the two-particle scattering length a . These can be compared to previous results obtained using nonrelativistic quantum mechanics [K. Huang and C. N. Yang, Phys. Rev. 105, 767 (1957); S. R. Beane, W. Detmold, and M. J. Savage, Phys. Rev. D 76, 074507 (2007); S. Tan, Phys. Rev. A 78, 013636 (2008)], and we find complete agreement. The 1 /L6 coefficients depend additionally on the two-particle effective range r (just as in the two-particle case) and on a suitably defined threshold three-particle scattering amplitude (a new feature for three particles). A second new feature in the three-particle case is that logarithmic dependence on L appears at O (1 /L6). Relativistic effects enter at this order, and the only comparison possible with the nonrelativistic result is for the coefficient of the logarithm, where we again find agreement. For a more thorough check of the 1 /L6 result, and thus of the quantization condition, we also compare to a perturbative calculation of the threshold energy in relativistic λ ϕ4 theory, which we have recently presented in [M. T. Hansen and S. R. Sharpe, Phys. Rev. D 93, 014506 (2016)]. Here, all terms can be compared, and we find full agreement.

  16. How does the Danish Groundwater Monitoring Programme support statistical consistent nitrate trend analyses in groundwater?

    NASA Astrophysics Data System (ADS)

    Hansen, Birgitte; Thorling, Lærke; Sørensen, Brian; Dalgaard, Tommy; Erlandsen, Mogens

    2013-04-01

    The overall aim of performing nitrate trend analyses in oxic groundwater is to document the effect of regulation of Danish agriculture on N pollution. The design of the Danish Groundwater Monitoring Programme is presented and discussed in relation to performance of statistical consistence nitrate trend analyses. Three types of data are crucial. Firstly, long and continuous time-series from the national groundwater monitoring network enable a statistically systematic analysis of distribution, trends and trend reversals in the groundwater nitrate concentration. Secondly, knowledge about the N surplus in Danish agriculture since 1950 from Denmark Statistics is used as an indicator of the potential loss of N. Thirdly, groundwater recharge age determination are performed in order to allow linking of the first two dataset. Recent results published in Hansen et al. (2011 & 2012) will be presented. Since the 1980s, regulations implemented by Danish farmers have succeeded in optimizing the N (nitrogen) management at farm level. As a result, the upward agricultural N surplus trend has been reversed, and the N surplus has reduced by 30-55% from 1980 to 2007 depending on region. The reduction in the N surplus served to reduce the losses of N from agriculture, with documented positive effects on nature and the environment in Denmark. In groundwater, the upward trend in nitrate concentrations was reversed around 1980, and a larger number of downward nitrate trends were seen in the youngest groundwater compared with the oldest groundwater. However, on average, approximately 48% of the oxic monitored groundwater has nitrate concentrations above the groundwater and drinking water standards of 50 mg/l. Furthermore, trend analyses show that 33% of all the monitored groundwater has upward nitrate trends, while only 18% of the youngest groundwater has upward nitrate trends according to data sampled from 1988-2009. A regional analysis shows a correlation between a high level of N

  17. Comparing and Correlating Solubility Parameters Governing the Self-Assembly of Molecular Gels Using 1,3:2,4-Dibenzylidene Sorbitol as the Gelator

    PubMed Central

    2014-01-01

    Solvent properties play a central role in mediating the aggregation and self-assembly of molecular gelators and their growth into fibers. Numerous attempts have been made to correlate the solubility parameters of solvents and gelation abilities of molecular gelators, but a comprehensive comparison of the most important parameters has yet to appear. Here, the degree to which partition coefficients (log P), Henry’s law constants (HLC), dipole moments, static relative permittivities (εr), solvatochromic ET(30) parameters, Kamlet–Taft parameters (β, α, and π), Catalan’s solvatochromic parameters (SPP, SB, and SA), Hildebrand solubility parameters (δi), and Hansen solubility parameters (δp, δd, δh) and the associated Hansen distance (Rij) of 62 solvents (covering a wide range of properties) can be correlated with the self-assembly and gelation of 1,3:2,4-dibenzylidene sorbitol (DBS) gelation, a classic molecular gelator, is assessed systematically. The approach presented describes the basis for each of the parameters and how it can be applied. As such, it is an instructional blueprint for how to assess the appropriate type of solvent parameter for use with other molecular gelators as well as with molecules forming other types of self-assembled materials. The results also reveal several important insights into the factors favoring the gelation of solvents by DBS. The ability of a solvent to accept or donate a hydrogen bond is much more important than solvent polarity in determining whether mixtures with DBS become solutions, clear gels, or opaque gels. Thermodynamically derived parameters could not be correlated to the physical properties of the molecular gels unless they were dissected into their individual HSPs. The DBS solvent phases tend to cluster in regions of Hansen space and are highly influenced by the hydrogen-bonding HSP, δh. It is also found that the fate of this molecular gelator, unlike that of polymers, is influenced not only by the

  18. Pymiedap: a versatile radiative transfer code with polarization for terrestrial (exo)planets.

    NASA Astrophysics Data System (ADS)

    Rossi, Loïc; Stam, Daphne; Hogenboom, Michael

    2016-04-01

    Polarimetry promises to be an important method to detect exoplanets: the light of a star is usually unpolarized te{kemp1987} while scattering by gas and clouds in an atmosphere can generate high levels of polarization. Furthermore, the polarization of scattered light contains information about the properties of the atmosphere and surface of a planet, allowing a possible characterization te{stam2008}, a method already validated in the solar system with Venus te{hansen1974,rossi2015}. We present here Pymiedap (Python Mie Doubling-Adding Program): a set of Python objects interfaced with Fortran radiative transfer codes that allows to define a planetary atmosphere and compute the flux and polarization of the light that is scattered. Several different properties of the planet can be set interactively by the user through the Python interface such as gravity, distance to the star, surface properties, atmospheric layers, gaseous and aerosol composition. The radiative transfer calculations are then computed following the doubling-adding method te{deHaan1987}. We present some results of the code and show its possible use for different planetary atmospheres for both resolved and disk-integrated measurements. We investigate the effect of gas, clouds and aerosols composition and surface properties for horizontally homogeneous and inhomogenous planets, in the case of Earth-like planets. We also study the effect of gaseous absorption on the flux and polarization as a marker for gaseous abundance and cloud top altitude. [1]{kemp1987} Kemp et al. The optical polarization of the sun measured at a sensitivity of parts in ten million. Nature, 1987, 326, 270-273 [2]{stam2008} Stam, D. M. Spectropolarimetric signatures of Earth-like extrasolar planets. A&A, 2008, 482, 989-1007 [3]{hansen1974} Hansen, J. E. & Hovenier, J. W. Interpretation of the polarization of Venus. Journal of Atmospheric Sciences, 1974, 31, 1137-1160 [4]{rossi2015} Rossi et al. Preliminary study of Venus cloud layers

  19. Modeling of the Enceladus water vapor jets for interpreting UVIS star and solar occultation observations

    NASA Astrophysics Data System (ADS)

    Portyankina, Ganna; Esposito, Larry W.; Aye, Klaus-Michael; Hansen, Candice J.

    2015-11-01

    One of the most spectacular discoveries of the Cassini mission is jets emitting from the southern pole of Saturn’s moon Enceladus. The composition of the jets is water vapor and salty ice grains with traces of organic compounds. Jets, merging into a wide plume at a distance, are observed by multiple instruments on Cassini. Recent observations of the visible dust plume by the Cassini Imaging Science Subsystem (ISS) identified as many as 98 jet sources located along “tiger stripes” [Porco et al. 2014]. There is a recent controversy on the question if some of these jets are “optical illusion” caused by geometrical overlap of continuous source eruptions along the “tiger stripes” in the field of view of ISS [Spitale et al. 2015]. The Cassini’s Ultraviolet Imaging Spectrograph (UVIS) observed occultations of several stars and the Sun by the water vapor plume of Enceladus. During the solar occultation separate collimated gas jets were detected inside the background plume [Hansen et al., 2006 and 2011]. These observations directly provide data about water vapor column densities along the line of sight of the UVIS instrument and could help distinguish between the presence of only localized or also continuous sources. We use Monte Carlo simulations and Direct Simulation Monte Carlo (DSMC) to model the plume of Enceladus with multiple (or continuous) jet sources. The models account for molecular collisions, gravitational and Coriolis forces. The models result in the 3-D distribution of water vapor density and surface deposition patterns. Comparison between the simulation results and column densities derived from UVIS observations provide constraints on the physical characteristics of the plume and jets. The specific geometry of the UVIS observations helps to estimate the production rates and velocity distribution of the water molecules emitted by the individual jets.Hansen, C. J. et al., Science 311:1422-1425 (2006); Hansen, C. J. et al, GRL 38:L11202 (2011

  20. Deriving the Structure and Composition of Enceladus’ Plume from Cassini UVIS Observations

    NASA Astrophysics Data System (ADS)

    Hansen, Candice; Esposito, Larry; Colwell, Josh; Hendrix, Amanda; Portyankina, Ganna; Shemansky, Don; West, Robert

    2015-11-01

    Cassini’s Ultraviolet Imaging Spectrograph (UVIS) has observed 4 stellar and one solar occultation by Enceladus’ water vapor plume. The July 2005 occultation observation established that water is the primary constituent of the plume [1], and allowed us to calculate the flux of water coming from the plume; the 2007 occultation showed super-sonic jets of gas imbedded within the plume [2]. The solar occultation observation set upper limits for N2 as a constituent of the plume and provided higher resolution data on the jets [3]. On 19 October 2011, epsilon and zeta Orionis were simultaneously occulted by the plume. The stars were in separate pixels on the detector, separated by 24 mrad, or ~20 km, with the lower altitude star (epsilon Orionis) 18 km above the limb at its closest point. The profile at two altitudes shows evidence for a new gas jet location, possibly between dust jet #50 and #51 identified in [4].Results from the assemblage of these data sets, with implications for the composition and vertical structure of the plume and jets, will be described. Gas being expelled from the “tiger stripe” fissures is largely on a vertical escape trajectory away from Enceladus. Upper limits are set for water vapor near the limb at latitudes well away from the south pole at 3 x 1015 cm-2. Upper limits are set for the amount of ethylene and H2 in the plume, two species of interest to the chemistry of the plume [5]. No hydrogen or oxygen emission features have been observed from Enceladus’ water vapor plume, in contrast to the purported plumes at Europa, probably due to the very different plasma environment at Saturn. Data have now been processed consistently for all occultations with slightly different results for water vapor supply to the Saturn magnetosphere than previously reported. Overall, eruptive activity has been steady to within ~20% from 2005 to 2011.References: [1] Hansen, C. J. et al., Science 311:1422 (2006). Hansen, C. J. et al., Nature 456:477 (2008

  1. Solvent exfoliation of transition metal dichalcogenides: dispersibility of exfoliated nanosheets varies only weakly between compounds.

    PubMed

    Cunningham, Graeme; Lotya, Mustafa; Cucinotta, Clotilde S; Sanvito, Stefano; Bergin, Shane D; Menzel, Robert; Shaffer, Milo S P; Coleman, Jonathan N

    2012-04-24

    We have studied the dispersion and exfoliation of four inorganic layered compounds, WS(2), MoS(2), MoSe(2), and MoTe(2), in a range of organic solvents. The aim was to explore the relationship between the chemical structure of the exfoliated nanosheets and their dispersibility. Sonication of the layered compounds in solvents generally gave few-layer nanosheets with lateral dimensions of a few hundred nanometers. However, the dispersed concentration varied greatly from solvent to solvent. For all four materials, the concentration peaked for solvents with surface energy close to 70 mJ/m(2), implying that all four have surface energy close to this value. Inverse gas chromatography measurements showed MoS(2) and MoSe(2) to have surface energies of ∼75 mJ/m(2), in good agreement with dispersibility measurements. However, this method suggested MoTe(2) to have a considerably larger surface energy (∼120 mJ/m(2)). While surface-energy-based solubility parameters are perhaps more intuitive for two-dimensional materials, Hansen solubility parameters are probably more useful. Our analysis shows the dispersed concentration of all four layered materials to show well-defined peaks when plotted as a function of Hansen's dispersive, polar, and H-bonding solubility parameters. This suggests that we can associate Hansen solubility parameters of δ(D) ∼ 18 MPa(1/2), δ(P) ∼ 8.5 MPa(1/2), and δ(H) ∼ 7 MPa(1/2) with all four types of layered material. Knowledge of these properties allows the estimation of the Flory-Huggins parameter, χ, for each combination of nanosheet and solvent. We found that the dispersed concentration of each material falls exponentially with χ as predicted by solution thermodynamics. This work shows that solution thermodynamics and specifically solubility parameter analysis can be used as a framework to understand the dispersion of two-dimensional materials. Finally, we note that in good solvents, such as cyclohexylpyrrolidone, the dispersions are

  2. More efficient evolutionary strategies for model calibration with watershed model for demonstration

    NASA Astrophysics Data System (ADS)

    Baggett, J. S.; Skahill, B. E.

    2008-12-01

    Evolutionary strategies allow automatic calibration of more complex models than traditional gradient based approaches, but they are more computationally intensive. We present several efficiency enhancements for evolution strategies, many of which are not new, but when combined have been shown to dramatically decrease the number of model runs required for calibration of synthetic problems. To reduce the number of expensive model runs we employ a surrogate objective function for an adaptively determined fraction of the population at each generation (Kern et al., 2006). We demonstrate improvements to the adaptive ranking strategy that increase its efficiency while sacrificing little reliability and further reduce the number of model runs required in densely sampled parts of parameter space. Furthermore, we include a gradient individual in each generation that is usually not selected when the search is in a global phase or when the derivatives are poorly approximated, but when selected near a smooth local minimum can dramatically increase convergence speed (Tahk et al., 2007). Finally, the selection of the gradient individual is used to adapt the size of the population near local minima. We show, by incorporating these enhancements into the Covariance Matrix Adaption Evolution Strategy (CMAES; Hansen, 2006), that their synergetic effect is greater than their individual parts. This hybrid evolutionary strategy exploits smooth structure when it is present but degrades to an ordinary evolutionary strategy, at worst, if smoothness is not present. Calibration of 2D-3D synthetic models with the modified CMAES requires approximately 10%-25% of the model runs of ordinary CMAES. Preliminary demonstration of this hybrid strategy will be shown for watershed model calibration problems. Hansen, N. (2006). The CMA Evolution Strategy: A Comparing Review. In J.A. Lozano, P. Larrañga, I. Inza and E. Bengoetxea (Eds.). Towards a new evolutionary computation. Advances in estimation of

  3. Artificial delta growth

    NASA Astrophysics Data System (ADS)

    Mikeš, Daniel

    2010-05-01

    A deltaic sedimentary system has a point source; sediment is carried over the delta plain by distributary channels away from the point source and deposited at the delta front by distributary mouth bars. The established methods to describe such a sedimentary system are "bedding analysis", "facies analysis", and "basin analysis". We shall call the ambient conditions "input" and the rock record "output". There exist a number of methods to deduce input from output, e.g. "Sequence stratigraphy" (a.o. Vail et al. 1977, Catuneanu et al. 2009), "Shoreline trajectory" (a.o. Helland-Hansen & Martinsen 1996, Helland-Hansen & Hampson 2009) on the one hand and the complex use of established techniques on the other (a.o. Miall & Miall 2001, Miall & Miall 2002). None of these deductive methods seems to be sufficient. I claim that the common errors in all these attempts are the following: (1) a sedimentary system is four-dimensional (3+1) and a lesser dimensional analysis is insufficient; (2) a sedimentary system is complex and any empirical/deductive analysis is non-unique. The proper approach to the problem is therefore the theoretical/inductive analysis. To that end we performed six scenarios of a scaled version of a passive margin delta in a flume tank. The scenarios have identical stepwise tectonic subsidence and semi-cyclic sealevel, but different supply curves, i.e. supply is: constant, highly-frequent, proportional to sealevel, inversely proportional to sealevel, lagging to sealevel, ahead of sealevel. The preliminary results are indicative. Lobe-switching occurs frequently and hence locally sedimentation occurs shortly and hiatuses are substantial; therefore events in 2D (+1) cross-sections don't correlate temporally. The number of sedimentary cycles disequals the number of sealevel cycles. Lobe-switching and stepwise tectonic subsidence cause onlap/transgression. Erosional unconformities are local diachronous events, whereas maximum flooding surfaces are regional

  4. Silylesterification of oxidized multi-wall carbon nanotubes by catalyzed dehydrogenative cross-coupling between carboxylic and hydrosilane functions

    NASA Astrophysics Data System (ADS)

    Seffer, J.-F.; Detriche, S.; Nagy, J. B.; Delhalle, J.; Mekhalif, Z.

    2014-06-01

    Surface modification of oxidized carbon nanotubes (O-CNTs) with silicon based anchoring groups (R-SiR3) is a relatively uncommon approach of the CNTs functionalization. Hydrosilane derivatives constitute an attractive subclass of compounds for silanization reactions on the CNTs surface. In this work, we report on the ZnCl2 catalytically controlled reaction (hydrosilane dehydrogenative cross-coupling, DHCC) of fluorinated hydrosilane probes with the carboxylic functions present on the surface of oxidized multi-wall carbon nanotubes. Carbon nanotubes functionalized with essentially alcohol groups are also used to compare the selectivity of zinc chloride toward carboxylic groups. To assess the efficiency of functionalization, X-ray Photoelectron Spectroscopy is used to determine the qualitative and quantitative composition of the different samples. Solubility tests on the oxidized and silanized MWNTs are also carried out in the framework of the Hansen Solubility Parameters (HSP) theory to apprehend at another scale the effect of DHCC.

  5. Nanocellular thermoplastic foam and process for making the same

    SciTech Connect

    Zhu, Lingbo; Costeux, Stephane; Patankar, Kshitish A.; Moore, Jonathan D.

    2015-09-29

    Prepare a thermoplastic polymer foam having a porosity of 70% or more and at least one of: (i) an average cell size of 200 nanometers or less; and (ii) a nucleation density of at least 1.times.1015 effective nucleation sites per cubic centimeter of foamable polymer composition not including blowing agent using a foamable polymer composition containing a thermoplastic polymer selected from styrenic polymer and (meth)acrylic polymers, a blowing agent comprising at least 20 mole-percent carbon dioxide based on moles of blowing agent and an additive having a Total Hansen Solubility Parameter that differs from that of carbon dioxide by less than 2 and that is present at a concentration of 0.01 to 1.5 weight parts per hundred weight parts thermoplastic polymer.

  6. Increased ocean heat transports and warmer climate

    NASA Technical Reports Server (NTRS)

    Rind, D.; Chandler, M.

    1991-01-01

    The impact of an increased ocean heat transport on climate is investigated in the framework of the GISS GMC model described by Hansen et al. (1983), using two scenarios: one starting from warmer polar temperatures/no sea ice and the other from the current ocean conditions. A 20-percent increase in cross-equatorial heat transport was sufficient to melt all sea ice; it resulted in a climate that was 2 C warmer for the global average, with values some 20-deg warmer at high altitudes and 1-deg warmer near the equator. It is suggested that the hydrological and dynamical changes associated with this different climate regime may be self-sustaining and, as such, would account for the high-latitude warmth of climates in the Mesozoic and Tertiary periods and the decadenal-scale climate fluctuations during the Holocene.

  7. Two-dimensional freezing criteria for crystallizing colloidal monolayers

    SciTech Connect

    Wang Ziren; Han Yilong; Alsayed, Ahmed M.

    2010-04-21

    Video microscopy was employed to explore crystallization of colloidal monolayers composed of diameter-tunable microgel spheres. Two-dimensional (2D) colloidal liquids were frozen homogenously into polycrystalline solids, and four 2D criteria for freezing were experimentally tested in thermal systems for the first time: the Hansen-Verlet freezing rule, the Loewen-Palberg-Simon dynamical freezing criterion, and two other rules based, respectively, on the split shoulder of the radial distribution function and on the distribution of the shape factor of Voronoi polygons. Importantly, these freezing criteria, usually applied in the context of single crystals, were demonstrated to apply to the formation of polycrystalline solids. At the freezing point, we also observed a peak in the fluctuations of the orientational order parameter and a percolation transition associated with caged particles. Speculation about these percolated clusters of caged particles casts light on solidification mechanisms and dynamic heterogeneity in freezing.

  8. Fine Needle Aspiration Cytology in Diagnosis of Pure Neuritic Leprosy

    PubMed Central

    Kumar, Bipin; Pradhan, Anju

    2011-01-01

    Leprosy is a chronic infection affecting mainly the skin and peripheral nerve. Pure neuritic form of this disease manifests by involvement of the nerve in the absence of skin lesions. Therefore, it can sometimes create a diagnostic problem. It often requires a nerve biopsy for diagnosis, which is an invasive procedure and may lead to neural deficit. Fine needle aspiration cytology (FNAC) of an affected nerve can be a valuable and less invasive procedure for the diagnosis of such cases. We report five suspected cases of pure neuritic Hansen's disease involving the common and superficial peroneal, ulnar, and median nerve, who underwent FNAC. Smears revealed nerve fibers infiltrated by chronic inflammatory cells in all cases, presence of epithelioid cells granulomas, and Langhans giant cells in three cases, and acid fast bacilli in two cases. In conclusion, FNAC is a safe, less invasive, and time saving procedure for the diagnosis of pure neuritic leprosy. PMID:21660285

  9. Alternative Bio-Based Solvents for Extraction of Fat and Oils: Solubility Prediction, Global Yield, Extraction Kinetics, Chemical Composition and Cost of Manufacturing

    PubMed Central

    Sicaire, Anne-Gaëlle; Vian, Maryline; Fine, Frédéric; Joffre, Florent; Carré, Patrick; Tostain, Sylvain; Chemat, Farid

    2015-01-01

    The present study was designed to evaluate the performance of alternative bio-based solvents, more especially 2-methyltetrahydrofuran, obtained from crop’s byproducts for the substitution of petroleum solvents such as hexane in the extraction of fat and oils for food (edible oil) and non-food (bio fuel) applications. First a solvent selection as well as an evaluation of the performance was made with Hansen Solubility Parameters and the COnductor-like Screening MOdel for Realistic Solvation (COSMO-RS) simulations. Experiments were performed on rapeseed oil extraction at laboratory and pilot plant scale for the determination of lipid yields, extraction kinetics, diffusion modeling, and complete lipid composition in term of fatty acids and micronutrients (sterols, tocopherols and tocotrienols). Finally, economic and energetic evaluations of the process were conducted to estimate the cost of manufacturing using 2-methyltetrahydrofuran (MeTHF) as alternative solvent compared to hexane as petroleum solvent. PMID:25884332

  10. Cross sections for ionization of tetrahydrofuran by protons at energies between 300 and 3000 keV

    NASA Astrophysics Data System (ADS)

    Wang, Mingjie; Rudek, Benedikt; Bennett, Daniel; de Vera, Pablo; Bug, Marion; Buhr, Ticia; Baek, Woon Yong; Hilgers, Gerhard; Rabus, Hans

    2016-05-01

    Double-differential cross sections for ionization of tetrahydrofuran by protons with energies from 300 to 3000 keV were measured at the Physikalisch-Technische Bundesanstalt ion accelerator facility. The electrons emitted at angles between 15∘ and 150∘ relative to the ion-beam direction were detected with an electrostatic hemispherical electron spectrometer. Single-differential and total ionization cross sections have been derived by integration. The experimental results are compared to the semiempirical Hansen-Kocbach-Stolterfoht model as well as to the recently reported method based on the dielectric formalism. The comparison to the latter showed good agreement with experimental data in a broad range of emission angles and energies of secondary electrons. The scaling property of ionization cross sections for tetrahydrofuran was also investigated. Compared to molecules of different size, the ionization cross sections of tetrahydrofuran were found to scale with the number of valence electrons at large impact parameters.

  11. Spectral measurements of asymmetrically irradiated capsule backlighters

    NASA Astrophysics Data System (ADS)

    Keiter, P. A.; Drake, R. P.

    2016-11-01

    Capsule backlighters provide a quasi-continuum x-ray spectrum over a wide range of photon energies [J. F. Hansen et al., Rev. Sci. Instrum. 79, 013504 (2008)]. Ideally one irradiates the capsule backlighter symmetrically, however, in complex experimental geometries, this is not always possible. In recent experiments we irradiated capsule backlighters asymmetrically and measured the x-ray spectrum from multiple directions. We will present time-integrated spectra over the photon energy range of 2-13 keV and time-resolved spectra over the photon energy range of 2-3 keV. We will compare the spectra from different lines of sight to determine if the laser asymmetry results in an angular dependence in the x-ray emission.

  12. Development of a two-dimensional zonally averaged statistical-dynamical model. II - The role of eddy momentum fluxes in the general circulation and their parameterization

    NASA Technical Reports Server (NTRS)

    Stone, Peter H.; Yao, Mao-Sung

    1987-01-01

    The role of eddy momentum fluxes in the general circulation was investigated using a two-dimensional zonally averaged statistical-dynamical model described by Yao and Stone (1987), which is almost two orders of magnitude faster than the three-dimensional climate model of Hansen et al. (1983). Results show that the vertical structure of the meridional eddy flux has relatively little impact on the general circulation, presumably because the vertical structure is strongly constrained by the thermal wind relation and surface friction. On the other hand, it was found that, in order to simulate accurately the general circulation and its response to climate changes, parameterization of the vertically integrated meridional eddy flux of angular momentum is necessary. A new parameterization of this eddy momentum transport was carried out, which is intended to represent the transport due to large-scale transient eddies arising from baroclinic instability.

  13. Isothermal density derivative of S(k) and the triplet correlation function: an experimental study in liquid Kr

    NASA Astrophysics Data System (ADS)

    Fontana, Raffaella; Magli, Renato

    1993-08-01

    Recent accurate measurements performed on liquid Kr have been used to test some of the models proposed in the literature for the triplet correlation function g 3( r, s). It turns out that neither the superposition approximation suggested by Kirkwood (J.P. Hansen and I.R. McDonald, Theory of simple liquids, Academic Press, London, 1986), nor a modification of it which partially takes into account linear density effects (H. Fredrikze, Ph.D. Thesis, Delft, 1985) are able to satisfactorily reproduce the experimental isothermal derivatives of the structure factor. Also the uniform fluid model (P.A. Egelstaff, D.I. Page and C.R.T. Heard, J. Phys. C, 4 (1971) 1453), gives a poor representation especially at lower densities. It is concluded that, in order to correctly describe triplet correlation effects, a full account of the irreducible contributions to g 3( r, s) is necessary.

  14. Pichia hawaiiensis sp. nov., occurring in decaying bark of Charpentiera trees in the Hawaiian archipelago.

    PubMed

    Phaff, H J; Starmer, W T; Kurtzman, C P

    2000-07-01

    A description is given for Pichia hawaiiensis sp. nov., a nitrate-utilizing member of the genus Pichia E. C. Hansen emend. Kurtzman. Seven strains of the new species were isolated during the years 1972, 1973 and 1978 from rotting bark of the Hawaiian tree genera Charpentiera, Pisonia and Cheirodendron. P. hawaiiensis is heterothallic but appears to occur in nature mainly in the diploid state. Asci are deliquescent and produce up to four hat-shaped spores per ascus. Phylogenetic analysis of the 600 nucleotide D1/D2 domain of the 26S rDNA showed that P. hawaiiensis is most closely related to Pichia populi and Williopsis californica (syn. Hansenula californica). The type strain of P. hawaiiensis, isolated on the island of Hawaii from the rotting bark of Charpentiera sp. containing insect larvae, is strain UCD-FST 72-181T (= ATCC MYA-137T = CBS 8760T = NRRL Y-27270T).

  15. Translating leprosy: the expert and the public in Stanley Stein's anti-stigmatization campaigns, 1931-60.

    PubMed

    John, Heather Varughese

    2013-10-01

    This article examines three campaigns through which patient activist Stanley Stein sought to combat the stigmatized connotations of the word "leprosy." In 1931, soon after starting the first patient newspaper at the U.S. national leprosy hospital at Carville, Stein became convinced of the necessity of finding an alternative to "leprosy." His ensuing campaign to promote the use of the words "Hansen's Disease" to describe the condition from which he and fellow Carville patients suffered became his most passionate and life-long project. In the 1950s, Stein became involved in efforts to change the translation of "leprosy" in the Bible. Finally, in 1960, he waged a campaign to de-stigmatize encyclopedia entries on leprosy. These campaigns illustrate how even elevation of the medical expert and a seeming disdain for the public can function as a protest of medical authority and reveal a presumption that a significant degree of authority actually resides with the public.

  16. Formation of Intense Plasma Outflows from Laboratory Prominences

    NASA Astrophysics Data System (ADS)

    Tripathi, S. K. P.

    2005-10-01

    Solar prominences have been simulated in a laboratory experiment using a four-electrode magnetized plasma source [1]. An ultra-high speed intensified CCD camera records visual images of the laboratory prominence evolution and a magnetic probe array measures internal magnetic fields. Laboratory prominences produced using low pressure argon and krypton form localized outflow from the main structure. These outflows appear immediately after Ar and Kr prominences become unstable and contact surrounding metal structures. Within a few microseconds after this event, the main structure disappears and the outflow becomes extremely intense and elongated. An analytic model based on Hamiltonian formalism predicts the existence of a critical parameter below which ions lose confinement in a force-free magnetic field and subsequently form intense outflows. This escape of ions from force-free magnetic fields has been verified in numerical computations of ion trajectories.[1] J. F. Hansen, S. K. P. Tripathi, and P. M. Bellan, Phys. Plasmas 11(6), 3177 (2004)

  17. When does a conceptual framework become a theory? Reflections from an accidental theorist.

    PubMed

    Cousins, J Bradley

    2013-06-01

    In this short paper I reflect on the application of a program logic modeling approach to visualizing evaluation theory as it relates to practical participatory evaluation (PPE). The work of Hansen, Alkin and associates presented in this volume is well-thought out, carefully done, rigorous, and important. I found that their application of the approach resonated well with my understanding of PPE with a few notable exceptions. Specifically, the essence of the partnership aspect of the approach was underemphasized as was stakeholders' role in augmenting the credibility of evaluation findings and PPEs contribution to conceptual use. I then reminisce about the development and evolution of the participatory evaluation framework that we have been working with for so many years. I raise the point that we think of it as a theoretical framework to bound inquiry, not as an evaluation theory per se, which raises an interesting question: when does a theoretical framework become a theory?

  18. Nordisk ophthalmologisk tidsskrift 1889-1892: the Nordic Journal of Ophthalmology - a forerunner of Acta Ophthalmologica.

    PubMed

    Ehlers, Niels

    2012-06-01

    In the second half of the nineteenth century several ophthalmological journals appeared (Germany, England, France, United States). In the northern countries (Denmark, Finland, Norway, Sweden) an initiative lead to 'Nordisk ophthalmologisk Tidsskrift' published in the scandinavian languages in the years 1889-92. The 'driving force' behind the journal was the first professor in Ophthalmology in Copenhagen, Dr. Edmund Hansen Grut. The purpose with this presentation is to give the background for the rise and fall of the journal which was an attempt to promote Nordic Ophthalmology. The authors turned out, however, to be mainly those involved as editors. The journal never gained broad acceptance and it simply stopped in 1892, without any closing remarks. In spite of its short life the journal should be remembered for the very first publication on the arcuate scotoma, the Bjerrum scotoma from 1889. Although shortlived the initiative was not in vain, as can be read in the preface to the very first volume of Acta ophthalmologica.

  19. A Planetary Ring Around Earth as Source for the Ir-Enrichment at the KT-Boundary

    NASA Astrophysics Data System (ADS)

    Stage, M.; Rasmussen, K. L.

    1992-07-01

    Since the discovery of the Ir enrichment at the Cretaceous- Tertiary boundary a majority of the researchers have claimed a meteorite impact as origin of the event. But up till now the search for an impact crater has not been conclusive, and alternative explanations have been suggested, e.g., a volcanic origin (Hansen 1990). If, however, we maintain that the KT- boundary material is extraterrestrial, the missing crater constitutes a problem. The missing-crater-problem can be solved by postulating the existence of a temporary planetary ring around the Earth. We suggest the following scenario: an incoming asteroid is captured by the Earth inside the Roche limit, and the breakup of the asteroid creates a planetary ring. Atmospheric drag and partially inelastic collisions between particles cause the ring particles to lose energy and slowly accrete onto Earth. Once the asteroid is decomposed, the atmospheric drag on the ring particles will primarily drain the smaller particles from the ring. The figure shows residence times as a function of starting position. Each curve represents one particle size. Thus the needed amount of Ir is brought down to Earth as a gentle rain lasting perhaps thousands of years, without major crater production. Our 3D computer simulations of the ring dynamics show accretion profiles, which are comparable to the Ir profiles at the KT boundary. In our model partially inelastic collisions occur between ring particles (Brahic, 1976, 1977) and the particles experience a slight atmospheric drag (10^-14 atm at 0.75 Earth radii). The particles are injected into randomly oriented orbits near the Earth upper atmosphere, from 0.1 to 0.75 Earth radii. The number and the density profile of the inward spiralling particles are calculated, until the distance from the Earth is small enough to assure that they are lost to the Earth surface within a few hours. The profile reflects the composition of the ring, and thereby the asteroid. In conclusion we suggest that

  20. Characterization of 2-(2-Methoxyethoxy)ethanol Substituted Phosphazene Polymers Using Pervaporation, Solubility Parameters and Sorption Studies

    SciTech Connect

    Orme, Christopher Joseph; Klaehn, John Ray; Harrup, Mason Kurt; Lash, Robert Paul; Stewart, Frederick Forrest

    2005-05-01

    Two linear phosphazene polymers were synthesized with differing amounts of hydrophilic 2-(2-methoxyethoxy)ethanol (MEE) and hydrophobic 4-methoxyphenol (MEOP) substituted on the backbone. These high polymers were cast into membranes and their permeability to water, methanol, ethanol, and 2-propanol was evaluated as a function of temperature. An additional polymer with a low content of MEE was studied for water permeation and was characterized by trace flux. At higher levels of MEE on the backbone, fluxes of all solvents increased. Solubility also was found to increase with increasing MEE content for all solvents except water. Unexpectedly, water was found to be less soluble in the higher MEE polymer, although higher membrane fluxes were observed. Diffusion coefficients showed the following trend: methanol 2-propanol > ethanol water. Finally, the affinity of solvents and polymers was discussed in terms of Hansen solubility parameters.

  1. PAHs in the Great Barrier Reef Lagoon reach potentially toxic levels from coal port activities

    NASA Astrophysics Data System (ADS)

    Burns, Kathryn A.

    2014-05-01

    In view of the controversy over expanding the coastal coal ports bordering the Great Barrier Reef (GBR) Lagoon and the World Heritage Area, I re-evaluated the data published in Burns and Brinkman (2011). I used the US EPA procedures for the determination of Equilibrium Partitioning Sediment Benchmarks (ESBs) for the protection of benthic organisms (Hansen et al., 2003), and the new proposed ANZECC/ARMCANZ (2013) sediment quality guidelines (Simpson et al., 2013) and determined that the coastal sediments offshore from the Hay Point coal terminal and suspended sediments caught in sediment traps inshore and at the offshore coral reefs contained levels of PAHs that approach the estimates for toxicity to benthic and water column organisms. This result is discussed in relation to risks posed to the GBR ecosystem by the port practices and the imminent expansion of the Abbott Point, Hay Point and other coal terminals.

  2. Tibiotarsal fracture repair in a bald eagle (Haliaeetus leucocephalus) using an interlocking nail.

    PubMed

    Hollamby, Simon; Dejardin, Loic M; Sikarskie, James G; Haeger, Jennifer

    2004-03-01

    A 14-yr-old, 5.13-kg bald eagle (Haliaeetus leucocephalus) was hit by a car and presented to the Michigan State University Small Animal Clinic with an open, grade II, transverse, midshaft, Winquist-Hansen type-II-comminuted left tibiotarsal fracture. The fracture was reduced and fixation established with a 4.7-mm-diameter, 112-mm-long, four-hole veterinary intramedullary interlocking nail maintained in position by single 2-mm transcortical screws placed in the main proximal and distal fragments. The bird was weight bearing on the bandaged limb 48 hr postoperatively. Radiographs obtained 4 wk postoperatively revealed bridging callus over three of four cortices. The bird was released after 5 mo of rehabilitation.

  3. Stability of Water/Poly(ethylene oxide)43-b-poly(ε-caprolactone)14/Cyclohexanone Emulsions Involves Water Exchange between the Core and the Bulk.

    PubMed

    Flores, Mario E; Martínez, Francisco; Olea, Andrés F; Shibue, Toshimichi; Sugimura, Natsuhiko; Nishide, Hiroyuki; Moreno-Villoslada, Ignacio

    2015-12-31

    The formation of emulsions upon reverse self-association of the monodisperse amphiphilic block copolymer poly(ethylene oxide)43-b-poly(ε-caprolactone)14 in cyclohexanone is reported. Such emulsions are not formed in toluene, chloroform, or dichloromethane. We demonstrate by magnetic resonance spectroscopy the active role of the solvent on the stabilization of the emulsions. Cyclohexanone shows high affinity for both blocks, as predicted by the Hansen solubility parameters, so that the copolymer chains are fully dissolved as monomeric chains. In addition, the solvent is able to produce hydrogen bonding with water molecules. Water undergoes molecular exchange between water molecules associated with the polymer and water molecules associated with the solvent, dynamics of major importance for the stabilization of the emulsions. Association of polymeric chains forming reverse aggregates is induced by water over a concentration threshold of 5 wt %. Reverse copolymer aggregates show submicron average hydrodynamic diameters, as seen by dynamic light scattering, depending on the polymer and water concentration.

  4. Solvent pre-wetting as an effective start-up method for point-of-use filter

    NASA Astrophysics Data System (ADS)

    Umeda, Toru; Sugiyama, Shinichi; Nakamura, Takashi; Momota, Makoto; Sevegney, Michael; Tsuzuki, Shuichi; Numaguchi, Toru

    2012-03-01

    An effective filter start-up method has been required by device manufacturers, mainly in order to reduce waste volume of lithography process chemicals, which become more expensive as lithography technology advances. Remaining air was monitored during static-pressure-driven filter start-up. As a result, 3500 ml of the resist was needed to eliminate remaining air. For improvement, cyclohexanone pre-wetting was applied prior to the resist introduction. As a result, the resist volume needed for the solvent displacement was 1900 ml, approximately half the volume required for staticpressure- driven start-up. Other solvents were evaluated for the pre-wetting start-up method. Results, in descending order of performance were PGME (best) < PGMEA = IPA < cyclohexanone (worst). Moreover, air displacement performance strongly correlated with Hansen solubility parameter distance between each solvent and nylon 6,6 material.

  5. An experimental charge density of HEPES.

    PubMed

    Sledź, Paweł; Kamiński, Radosław; Chruszcz, Maksymilian; Zimmerman, Matthew D; Minor, Wladek; Woźniak, Krzysztof

    2010-08-01

    We report the experimental charge density of HEPES [4-(2-hydroxyethyl)-1-piperazineethanesulfonic acid], which is a common buffering agent. The structure was refined using the Hansen-Coppens formalism. The ability of the HEPES molecule to form stable intermolecular interactions and intermolecular hydrogen bonds in the crystal structure is discussed in terms of its buffering properties. The protonation mode observed in the crystal structure is different from that expected in solution, suggesting that additional factors must be taken into consideration in order to explain the solution properties of the compound. As ordered HEPES molecules are found in the active sites of proteins in several protein crystal structures, our results will allow for quantitative analysis of the electrostatic potential of the interacting surfaces of those proteins.

  6. Determination of the sediment carrying capacity based on perturbed theory.

    PubMed

    Ni, Zhi-hui; Zeng, Qiang; Li-chun, Wu

    2014-01-01

    According to the previous studies of sediment carrying capacity, a new method of sediment carrying capacity on perturbed theory was proposed. By taking into account the average water depth, average flow velocity, settling velocity, and other influencing factors and introducing the median grain size as one main influencing factor in deriving the new formula, we established a new sediment carrying capacity formula. The coefficients were determined by the principle of dimensional analysis, multiple linear regression method, and the least square method. After that, the new formula was verified through measuring data of natural rivers and flume tests and comparing the verified results calculated by Cao Formula, Zhang Formula, Li Formula, Engelung-Hansen Formula, Ackers-White Formula, and Yang Formula. According to the compared results, it can be seen that the new method is of high accuracy. It could be a useful reference for the determination of sediment carrying capacity.

  7. Experimental study and thermodynamic modeling for determining the effect of non-polar solvent (hexane)/polar solvent (methanol) ratio and moisture content on the lipid extraction efficiency from Chlorella vulgaris.

    PubMed

    Malekzadeh, Mohammad; Abedini Najafabadi, Hamed; Hakim, Maziar; Feilizadeh, Mehrzad; Vossoughi, Manouchehr; Rashtchian, Davood

    2016-02-01

    In this research, organic solvent composed of hexane and methanol was used for lipid extraction from dry and wet biomass of Chlorella vulgaris. The results indicated that lipid and fatty acid extraction yield was decreased by increasing the moisture content of biomass. However, the maximum extraction efficiency was attained by applying equivolume mixture of hexane and methanol for both dry and wet biomass. Thermodynamic modeling was employed to estimate the effect of hexane/methanol ratio and moisture content on fatty acid extraction yield. Hansen solubility parameter was used in adjusting the interaction parameters of the model, which led to decrease the number of tuning parameters from 6 to 2. The results indicated that the model can accurately estimate the fatty acid recovery with average absolute deviation percentage (AAD%) of 13.90% and 15.00% for the two cases of using 6 and 2 adjustable parameters, respectively.

  8. Dispersibility of reduced alkylamine-functionalized graphene oxides in organic solvents.

    PubMed

    Jang, Jinhee; Pham, Viet Hung; Hur, Seung Hyun; Chung, Jin Suk

    2014-06-15

    The alkylamine functionalization of graphene oxide is well known as an efficient approach to prepare reduced functionalized graphene oxide (RFGO) that is highly dispersible in organic solvents. Herein, we systematically investigated the effects of long-chain alkylamine functionalization of graphene oxide on the organic solvent dispersibility and electrical conductivity of RFGO. Three kinds of alkylamines, octylamine, dodecylamine and hexadecylamine, were chosen as functionalization agents. The alkylamine functionalization of graphene oxide was characterized by X-ray photoelectron spectroscopy, Fourier transform infrared spectroscopy, Raman spectroscopy, thermogravimetric analysis and X-ray diffraction. RFGO using octylamine exhibited the best electrical conductivity of greater than 180 S/m. All of the RFGOs had excellent dispersibility, up to 3.0 mg/mL, in organic solvents, with Hansen solubility parameters in the range of 6.3<(δ(p)+δ(h))<13.7.

  9. Assessing the Quality of Solvents and Dispersants for Low-Dimensional Materials Using the Corresponding Distances Method.

    PubMed

    Hardy, A; Bock, H

    2016-11-10

    We demonstrate that the corresponding distances method is an accurate, highly efficient, and simple method to assess the quality of solvents and dispersants for low-dimensional nanomaterials. It provides potential of mean force curves at very high resolution from a single simulation using atomistic models with common simulation software. Applying the corresponding distances method to a pair of (10,10) single-wall carbon nanotubes immersed in bromotrichloromethane, we find that bromotrichloromethane is not a solvent for carbon nanotubes. This assessment is in agreement with experimental results but contradicts predictions from Hansen solubility parameters. We argue that the reason for the false-positive prediction of solubility theory is that it does not capture the structural details of the adsorbed solvent layer, which governs the solvent-mediated forces between the tubes.

  10. Solvent Selection for Pressurized Liquid Extraction of Polymeric Sorbents Used in Air Sampling

    PubMed Central

    Primbs, Toby; Genualdi, Susan; Simonich, Staci

    2014-01-01

    Pressurized liquid extraction (PLE) was evaluated as a method for extracting semivolatile organic compounds (SOCs) from air sampling media; including quartz fiber filter (QFF), polyurethane foam (PUF), and a polystyrene divinyl benzene copolymer (XAD-2). Hansen solubility parameter plots were used to aid in the PLE solvent selection in order to reduce both co-extraction of polyurethane and save time in evaluating solvent compatibility during the initial steps of method development. A PLE solvent composition of 75:25% hexane:acetone was chosen for PUF. The XAD-2 copolymer was not solubilized under the PLE conditions used. The average percent PLE recoveries (and percent relative standard deviations) of 63 SOCs, including polycyclic aromatic hydrocarbons (PAHs), polychlorinated biphenyls (PCBs), and organochlorine, amide, triazine, thiocarbamate, and phosphorothioate pesticides, were 76.7 (6.2), 79.3 (8.1), and 93.4 (2.9) % for the QFF, PUF, and XAD-2, respectively. PMID:18220448

  11. Morphologies of Phenytoin Crystals at Silica Model Surfaces: Vapor Annealing versus Drop Casting.

    PubMed

    Ehmann, Heike M A; Baumgartner, Ramona; Kunert, Birgit; Zimmer, Andreas; Roblegg, Eva; Werzer, Oliver

    2014-06-19

    The controlled preparation of different crystal morphologies with varying preferential orientation with respect to the substrate is of crucial importance in many fields of applications. In this work, the controlled preparation of different phenytoin morphologies and the dependency of the preferential orientation of those crystallites is related with the preparation method (solvent annealing vs drop casting), as well as the physical-chemical interaction with the solvents in use. While solvent annealing induces the formation of particular structures that are partially dewetted, the drop casting technique from various solvent results in the formation of needle-like and elongated structures, with each having a distinct morphology. The morphologies are explained via the Hansen solubility parameters and correlated with the solvent vapor pressures. X-ray diffraction experiments reveal preferential orientations with respect to the solid substrate and indicate the surface-mediated stabilization of an unknown polymorph of phenytoin with an elongated unit cell in the b-axis.

  12. Selecting water-alcohol mixed solvent for synthesis of polydopamine nano-spheres using solubility parameter

    PubMed Central

    Jiang, Xiaoli; Wang, Yinling; Li, Maoguo

    2014-01-01

    The solvent plays an important role in a given chemical reaction. Since most reaction in nature occur in the mixed-solvent systems, a comprehensive principle for solvent optimization was required. By calculating the Hansen solubility parameters (HSP) distance Ra, we designed a model experiment to explore the influence of mixed solvents on the chemical synthesis. The synthesis of polydopamine (PDA) in the water-alcohol system was chosen as model. As predicted, the well-dispersed PDA spheres were obtained in selected solvents with smaller Ra values: methanol/water, ethanol/water and 2-propanol/water. In addition, the mixed solvent with smaller Ravalues gave a higher conversion of dopamine. The strategy for mixed solvent selection is might be useful to choose optimal reaction media for efficient chemical synthesis. PMID:25317902

  13. Redox-responsive gels with tunable hydrophobicity for controlled solubilization and release of organics.

    PubMed

    Akhoury, Abhinav; Bromberg, Lev; Hatton, T Alan

    2011-04-01

    The hydrophobicity of the chemical environment within a redox-responsive polymer gel synthesized by copolymerization of hydroxybutyl methacrylate (HBMA) and vinylferrocene (VF) can be controlled by tuning the oxidation state of the redox-responsive moiety, ferrocene. When ferrocene is in the uncharged reduced state, the gel is hydrophobic and selectively extracts butanol from aqueous solution. Upon oxidation to ferricenium ions, charge is induced at the ferrocene sites making the gel hydrophilic, with a reduced capacity for butanol relative to water. Equilibrium distribution coefficients and separation factors provide quantitative evidence for this changing preference for butanol depending on oxidation state. The selection of the monomer constituting the polymer backbone, HBMA, was based on an initial screening using the Hansen solubility parameters of commercially available monomers. The effect of the various constituents of the gel on the gel's butanol extraction ability has been ascertained experimentally.

  14. Method for efficient recovery of high-purity polycarbonates from electronic waste.

    PubMed

    Weeden, George S; Soepriatna, Nicholas H; Wang, Nien-Hwa Linda

    2015-02-17

    More than one million tons of polycarbonates from waste electrical and electronic equipment are consigned to landfills at an increasing rate of 3-5% per year. Recycling the polymer waste should have a major environmental impact. Pure solvents cannot be used to selectively extract polycarbonates from mixtures of polymers with similar properties. In this study, selective mixed solvents are found using guidelines from Hansen solubility parameters, gradient polymer elution chromatography, and solubility tests. A room-temperature sequential extraction process using two mixed solvents is developed to recover polycarbonates with high yield (>95%) and a similar purity and molecular weight distribution as virgin polycarbonates. The estimated cost of recovery is less than 30% of the cost of producing virgin polycarbonates from petroleum. This method would potentially reduce raw materials from petroleum, use 84% less energy, reduce emission by 1-6 tons of CO2 per ton of polycarbonates, and reduce polymer accumulation in landfills and associated environmental hazards.

  15. Morphologies of Phenytoin Crystals at Silica Model Surfaces: Vapor Annealing versus Drop Casting

    PubMed Central

    2014-01-01

    The controlled preparation of different crystal morphologies with varying preferential orientation with respect to the substrate is of crucial importance in many fields of applications. In this work, the controlled preparation of different phenytoin morphologies and the dependency of the preferential orientation of those crystallites is related with the preparation method (solvent annealing vs drop casting), as well as the physical–chemical interaction with the solvents in use. While solvent annealing induces the formation of particular structures that are partially dewetted, the drop casting technique from various solvent results in the formation of needle-like and elongated structures, with each having a distinct morphology. The morphologies are explained via the Hansen solubility parameters and correlated with the solvent vapor pressures. X-ray diffraction experiments reveal preferential orientations with respect to the solid substrate and indicate the surface-mediated stabilization of an unknown polymorph of phenytoin with an elongated unit cell in the b-axis. PMID:24966892

  16. Wood Extractives Promote Cellulase Activity on Cellulosic Substrates.

    PubMed

    Leskinen, Timo; Salas, Carlos; Kelley, Stephen S; Argyropoulos, Dimitris S

    2015-10-12

    Deposition of hydrophobic wood extractives and representative model compounds, on the surface of cellulose prior to enzymatic hydrolysis was found to either enhance or inhibit the action of cellulase enzymes. The effect of these compounds was correlated with their chemical structure, which may in part explain the differential effects observed between softwood and hardwood extractives. Specifically, the addition of sterol, enhanced enzymatic hydrolysis of microcrystalline cellulose by 54%, whereas the addition of a triglyceride could inhibit the hydrolysis by 49%. The effects of the different extractives' could be explained by considering their Hansen solubility parameters. The amphiphilic and/or hydrophobic character of model extractives was found to be the variable that affected the deposition of extractives on cellulose surfaces and the eventual adsorption of cellulolytic enzymes on it. The observed beneficial effects of extractives are likely related to a reduction in the irreversible binding of the enzymes on the cellulose surface.

  17. Geologic controls of uranium mineralization in the Tallahassee Creek uranium district, Fremont County, Colorado.

    USGS Publications Warehouse

    Dickinson, K.A.

    1981-01-01

    Two important orebodies have been defined by drilling in the Tallahassee Creek uranium district, Fremont County, Colorado, namely the Hansen and the Picnic Tree. Host rocks are respectively the upper Eocene Echo park Alluvium, and the lower Oligocene Tallahassee Creek Conglomerate. Average ore grade is about 0.08% U3O8. The principal source rock is the lower Oligocene Wall Mountain Tuff. Leaching and transportation of the uranium occurred in alkaline oxidizing ground water that developed during alteration of the ash in a semi-arid environment. The uranium was transported in the groundwater and deposited in a reducing environment controlled by carbonaceous material and associated pyrite. Localization of the ore was controlled by groundwater flow conditions and by the distribution of organic matter in the host rock. -from Author

  18. Dragging of stars by a sinking Intermediate Mass Black Hole

    NASA Astrophysics Data System (ADS)

    Berukoff, S.; Hansen, B.

    2004-12-01

    A topic of some recent debate is the existence of the IRS 16 complex near the Galactic center, and specifically, how to explain the presence of young O stars orbiting the central supermassive black hole (SBH). Hansen and Milosjavelic (2003) proposed that a stellar cluster harboring an intermediate-mass black hole could sink via dynamical friction, dragging stars with it and allowing the deposition of its stars into orbits near the SBH. We present the results of N-body simulations of a small cluster being dragged in by such a black hole, providing a mapping between their phase space of the initial cluster members and their final phase space parameters orbiting the SBH. To elucidate peculiarities of some stellar orbits, and to understand separately the cluster dynamics and the cluster-SBH interaction, the results of three-body simulations are also given.

  19. Toward economics as a new complex system

    NASA Astrophysics Data System (ADS)

    Kaizoji, Taisei

    2016-12-01

    The 2015 Nobel Prize in Economic Sciences was awarded to Eugene Fama, Lars Peter Hansen and Robert Shiller for their contributions to the empirical analysis of asset prices. Eugene Fama [J. Finance 25(2), 383 (1970)] is an advocate of the efficient market hypothesis. The efficient market hypothesis assumes that asset price is determined by using all available information and only reacts to new information not incorporated into the fundamentals. Thus, the movement of stock prices is unpredictable. Robert Shiller [ Irrational Exuberance (Princeton Univ. Press, 2015)] has been studying the existence of irrational bubbles, which are defined as the long term deviations of asset price from the fundamentals. This drives us to the unsettled question of how the market actually works. In this paper, I look back at the development of economics and consider the direction in which we should move in order to truly understand the workings of an economic society.

  20. Equation-of-state modeling of mixtures with ionic liquids.

    PubMed

    Tsioptsias, Costas; Tsivintzelis, Ioannis; Panayiotou, Costas

    2010-05-14

    A non-electrolyte equation-of-state model was used to describe the phase behavior of binary systems containing alkyl-methyimidazolium bis(trifluoromethyl-sulfonyl)imide ionic liquids. A methodology is suggested for modeling this phase behavior by using the Non-Random Hydrogen-Bonding (NRHB) model. According to this methodology, the scaling constants of the ionic liquid are calculated using limited available experimental data on liquid densities and Hansen's solubility parameters, while all electrostatic interactions (polar, hydrogen bonding and ionic) are treated as strong specific interactions. Using the aforementioned methodology, the model is applied to describe the vapor-liquid and the liquid-liquid equilibria in mixtures of ionic liquids with various polar or quadrupolar solvents at low and high pressures. In all cases, one temperature-independent binary interaction parameter was used. Accurate correlations were obtained for the majority of the systems, both, for vapor-liquid and liquid-liquid equilibria.

  1. Theoretical description of the mixed-field orientation of asymmetric-top molecules: A time-dependent study

    NASA Astrophysics Data System (ADS)

    Omiste, Juan J.; González-Férez, Rosario

    2016-12-01

    We present a theoretical study of the mixed-field-orientation of asymmetric-top molecules in tilted static electric field and nonresonant linearly polarized laser pulse by solving the time-dependent Schrödinger equation. Within this framework, we compute the mixed-field orientation of a state-selected molecular beam of benzonitrile (C7H5N ) and compare with the experimental observations [J. L. Hansen et al., Phys. Rev. A 83, 023406 (2011), 10.1103/PhysRevA.83.023406] and with our previous time-independent descriptions [J. J. Omiste et al., Phys. Chem. Chem. Phys. 13, 18815 (2011), 10.1039/c1cp21195a]. For an excited rotational state, we investigate the field-dressed dynamics for several field configurations as those used in the mixed-field experiments. The nonadiabatic phenomena and their consequences on the rotational dynamics are analyzed in detail.

  2. Quantitative analysis of molecular orientation in chlorophyll a Langmuir monolayer: a polarized visible reflection spectroscopic study.

    PubMed Central

    Okamura, E; Hasegawa, T; Umemura, J

    1995-01-01

    Polarized visible reflection spectra of a chlorophyll a (Chl.a) Langmuir monolayer have been measured in situ at various surface pressures. By applying Hansen's optics to the three-phase plane-bounded system (air/Chl.a monolayer/water), the negative reflection absorbances observed were reproduced satisfactorily by the theoretical calculation. Molecular orientation of Chl.a in the monolayer was evaluated quantitatively as a function of surface pressure, from the reflection absorbance of p- and s-polarized spectra of the red (Qy) band. It has been proven that Chl.a molecules in the monolayer form aggregates (islands) even in the low surface pressure region and that during the monolayer compression the molecules are gradually reorganized from inhomogeneous islands to ordered structures, with the chromophores oriented on the average vertically to the water surface. Images FIGURE 1 PMID:8519968

  3. Drug development costs when financial risk is measured using the Fama-French three-factor model.

    PubMed

    Vernon, John A; Golec, Joseph H; Dimasi, Joseph A

    2010-08-01

    In a widely cited article, DiMasi, Hansen, and Grabowski (2003) estimate the average pre-tax cost of bringing a new molecular entity to market. Their base case estimate, excluding post-marketing studies, was $802 million (in $US 2000). Strikingly, almost half of this cost (or $399 million) is the cost of capital (COC) used to fund clinical development expenses to the point of FDA marketing approval. The authors used an 11% real COC computed using the capital asset pricing model (CAPM). But the CAPM is a single factor risk model, and multi-factor risk models are the current state of the art in finance. Using the Fama-French three factor model we find that the cost of drug development to be higher than the earlier estimate.

  4. Global Energy Issues and Alternate Fueling

    NASA Technical Reports Server (NTRS)

    Hendricks, Robert C.

    2007-01-01

    This viewgraph presentation describes world energy issues and alternate fueling effects on aircraft design. The contents include: 1) US Uses about 100 Quad/year (1 Q = 10(exp 15) Btu) World Energy Use: about 433 Q/yr; 2) US Renewable Energy about 6%; 3) Nuclear Could Grow: Has Legacy Problems; 4) Energy Sources Primarily NonRenewable Hydrocarbon; 5) Notes; 6) Alternate Fuels Effect Aircraft Design; 7) Conventional-Biomass Issue - Food or Fuel; 8) Alternate fuels must be environmentally benign; 9) World Carbon (CO2) Emissions Problem; 10) Jim Hansen s Global Warming Warnings; 11) Gas Hydrates (Clathrates), Solar & Biomass Locations; 12) Global Energy Sector Response; 13) Alternative Renewables; 14) Stratospheric Sulfur Injection Global Cooling Switch; 15) Potential Global Energy Sector Response; and 16) New Sealing and Fluid Flow Challenges.

  5. Electron capture in carbon dwarf supernovae

    NASA Technical Reports Server (NTRS)

    Mazurek, T. J.; Truran, J. W.; Cameron, A. G. W.

    1974-01-01

    The rates of electron capture on heavier elements under the extreme conditions predicted for dwarf star supernovae have been computed, incorporating modifications that seem to be indicated by present experimental results. An estimate of the maximum possible value of such rates is also given. The distribution of nuclei in nuclear statistical equilibrium has been calculated for the range of expected supernovae conditions, including the effects of the temperature dependence of nuclear partition functions. These nuclide abundance distributions are then used to compute nuclear equilibrium thermodynamic properties. The effects of the electron capture on such equilibrium matter are discussed. In the context of the 'carbon detonation' supernova model, the dwarf central density required to ensure core collapse to a neutron star configuration is found to be slightly higher than that obtained by Bruenn (1972) with the electron capture rates of Hansen (1966).-

  6. Thermodynamic approach to boron nitride nanotube solubility and dispersion

    NASA Astrophysics Data System (ADS)

    Tiano, A. L.; Gibbons, L.; Tsui, M.; Applin, S. I.; Silva, R.; Park, C.; Fay, C. C.

    2016-02-01

    Inadequate dispersion of nanomaterials is a critical issue that significantly limits the potential properties of nanocomposites and when overcome, will enable further enhancement of material properties. The most common methods used to improve dispersion include surface functionalization, surfactants, polymer wrapping, and sonication. Although these approaches have proven effective, they often achieve dispersion by altering the surface or structure of the nanomaterial and ultimately, their intrinsic properties. Co-solvents are commonly utilized in the polymer, paint, and art conservation industries to selectively dissolve materials. These co-solvents are utilized based on thermodynamic interaction parameters and are chosen so that the original materials are not affected. The same concept was applied to enhance the dispersion of boron nitride nanotubes (BNNTs) to facilitate the fabrication of BNNT nanocomposites. Of the solvents tested, dimethylacetamide (DMAc) exhibited the most stable, uniform dispersion of BNNTs, followed by N,N-dimethylformamide (DMF), acetone, and N-methyl-2-pyrrolidone (NMP). Utilizing the known Hansen solubility parameters of these solvents in comparison to the BNNT dispersion state, a region of good solubility was proposed. This solubility region was used to identify co-solvent systems that led to improved BNNT dispersion in poor solvents such as toluene, hexane, and ethanol. Incorporating the data from the co-solvent studies further refined the proposed solubility region. From this region, the Hansen solubility parameters for BNNTs are thought to lie at the midpoint of the solubility sphere: 16.8, 10.7, and 9.0 MPa1/2 for δd, δp, and δh, respectively, with a calculated Hildebrand parameter of 21.8 MPa1/2.Inadequate dispersion of nanomaterials is a critical issue that significantly limits the potential properties of nanocomposites and when overcome, will enable further enhancement of material properties. The most common methods used to

  7. Aplastic articular facets in a dog with intervertebral disk rupture of the 12th to 13th thoracic vertebral space.

    PubMed

    Werner, Thorsten; McNicholas, W Thomas; Kim, Jongmin; Baird, Debra K; Breur, Gert J

    2004-01-01

    A 6-year-old, female spayed Pomeranian was presented with acute hind-limb paraplegia with the presence of deep pain perception and urinary incontinence. Myelography showed a Hansen type I herniation of the12th to 13th thoracic intervertebral space (T(12-13)). Articular facets of the T(12-13) and T(13) to first lumbar vertebra (L(1)) were absent. The spinal cord was decompressed using a bilateral T(12-13) modified lateral hemilaminectomy (pediculectomy). The aplastic sites were associated with minimal instability of the vertebral column, and stabilization of the vertebral column was not required. Familiarity with this condition is important, because articular facet aplasia may cause vertebral instability and may require an adjusted surgical approach or vertebral reduction and fusion following decompression.

  8. Integrated hydrological SVAT model for climate change studies in Denmark

    NASA Astrophysics Data System (ADS)

    Mollerup, M.; Refsgaard, J.; Sonnenborg, T. O.

    2010-12-01

    In a major Danish funded research project (www.hyacints.dk) a coupling is being established between the HIRHAM regional climate model code from Danish Meteorological Institute and the MIKE SHE distributed hydrological model code from DHI. The linkage between those two codes is a soil vegetation atmosphere transfer scheme, which is a module of MIKE SHE. The coupled model will be established for the entire country of Denmark (43,000 km2 land area) where a MIKE SHE based hydrological model already exists (Henriksen et al., 2003, 2008). The present paper presents the MIKE SHE SVAT module and the methodology used for parameterising and calibrating the MIKE SHE SVAT module for use throughout the country. As SVAT models previously typically have been tested for research field sites with comprehensive data on energy fluxes, soil and vegetation data, the major challenge lies in parameterisation of the model when only ordinary data exist. For this purpose annual variations of vegetation characteristics (Leaf Area Index (LAI), Crop height, Root depth and the surface albedo) for different combinations of soil profiles and vegetation types have been simulated by use of the soil plant atmosphere model Daisy (Hansen et al., 1990; Abrahamsen and Hansen, 2000) has been applied. The MIKE SHE SVAT using Daisy generated surface/soil properties model has been calibrated against existing data on groundwater heads and river discharges. Simulation results in form of evapotranspiration and percolation are compared to the existing MIKE SHE model and to observations. To analyse the use of the SVAT model in climate change impact assessments data from the ENSEMBLES project (http://ensembles-eu.metoffice.com/) have been analysed to assess the impacts on reference evapotranspiration (calculated by the Makkink and the Penmann-Monteith equations) as well as on the individual elements in the Penmann-Monteith equation (radiation, wind speed, humidity and temperature). The differences on the

  9. Isomorphism and solid solution as shown by an accurate high-resolution diffraction experiment.

    PubMed

    Poulain, Agnieszka; Kubicki, Maciej; Lecomte, Claude

    2014-12-01

    High-resolution crystal structure determination and spherical and multipolar refinement enabled an organic solid solution of 1-(4'-chlorophenyl)-2-methyl-4-nitro-1H-imidazole-5-carbonitrile and 5-bromo-1-(4'-chlorophenyl)-2-methyl-4-nitro-1H-imidazole to be found, which would not normally be revealed using only standard resolution data (ca 0.8 Å), as the disordered part is only visible at high resolution. Therefore, this new structure would have been reported as just another polymorphic form, even more reasonably as isostructural with other derivatives. To the best of our knowledge this is the first example of organic solid solution modelled via charge density Hansen-Coppens formalism and analysed by means of quantum theory of atoms in molecules (QTAIM) theory.

  10. Thermophysical properties of liquid Ni around the melting temperature from molecular dynamics simulation

    NASA Astrophysics Data System (ADS)

    Rozas, R. E.; Demiraǧ, A. D.; Toledo, P. G.; Horbach, J.

    2016-08-01

    Thermophysical properties of liquid nickel (Ni) around the melting temperature are investigated by means of classical molecular dynamics (MD) simulation, using three different embedded atom method potentials to model the interactions between the Ni atoms. Melting temperature, enthalpy, static structure factor, self-diffusion coefficient, shear viscosity, and thermal diffusivity are compared to recent experimental results. Using ab initio MD simulation, we also determine the static structure factor and the mean-squared displacement at the experimental melting point. For most of the properties, excellent agreement is found between experiment and simulation, provided the comparison relative to the corresponding melting temperature. We discuss the validity of the Hansen-Verlet criterion for the static structure factor as well as the Stokes-Einstein relation between self-diffusion coefficient and shear viscosity. The thermal diffusivity is extracted from the autocorrelation function of a wavenumber-dependent temperature fluctuation variable.

  11. RNAi-mediated gene knockdown and in vivo diuresis assay in adult female Aedes aegypti mosquitoes.

    PubMed

    Drake, Lisa L; Price, David P; Aguirre, Sarah E; Hansen, Immo A

    2012-07-14

    This video protocol demonstrates an effective technique to knockdown a particular gene in an insect and conduct a novel bioassay to measure excretion rate. This method can be used to obtain a better understanding of the process of diuresis in insects and is especially useful in the study of diuresis in blood-feeding arthropods that are able to take up huge amounts of liquid in a single blood meal. This RNAi-mediated gene knockdown combined with an in vivo diuresis assay was developed by the Hansen lab to study the effects of RNAi-mediated knockdown of aquaporin genes on Aedes aegypti mosquito diuresis. The protocol is setup in two parts: the first demonstration illustrates how to construct a simple mosquito injection device and how to prepare and inject dsRNA into the thorax of mosquitoes for RNAi-mediated gene knockdown. The second demonstration illustrates how to determine excretion rates in mosquitoes using an in vivo bioassay.

  12. Spatio-Temporal Variation of Terpenoids in Wild Plants of Pentalinon andrieuxii.

    PubMed

    Hiebert-Giesbrecht, Mickel R; Escalante-Erosa, Fabiola; García-Sosa, Karlina; Dzib, Gabriel R; Calvo-Irabien, Luz M; Peña-Rodríguez, Luis M

    2016-11-01

    Pentalinon andrieuxii (Müll.Arg.) B.F.Hansen & Wunderlin (Apocynaceae) is a vine native to the Yucatan peninsula, where it is widely used in Mayan traditional medicine to treat, among other ailments, the wounds caused by cutaneous leishmaniasis. Among the secondary metabolites isolated from P. andrieuxii are the triterpene betulinic acid and the chemically unusual tri-norsesquiterpene urechitol A; however, to date, there is no existing knowledge about the accumulation dynamics of the ubiquitous betulinic acid or the novel urechitol A in the plant. In this article, we report on the accumulation of both secondary metabolites in wild individuals of P. andrieuxii; our results show that while the content of betulinic acid in plant leaves bears no apparent relation to plant ontogeny, the content of urechitol A in root tissue is clearly related to plant development.

  13. Mathematical model of the seismic electromagnetic signals (SEMS) in non crystalline substances

    SciTech Connect

    Dennis, L. C. C.; Yahya, N.; Daud, H.; Shafie, A.

    2012-09-26

    The mathematical model of seismic electromagnetic waves in non crystalline substances is developed and the solutions are discussed to show the possibility of improving the electromagnetic waves especially the electric field. The shear stress of the medium in fourth order tensor gives the equation of motion. Analytic methods are selected for the solutions written in Hansen vector form. From the simulated SEMS, the frequency of seismic waves has significant effects to the SEMS propagating characteristics. EM waves transform into SEMS or energized seismic waves. Traveling distance increases once the frequency of the seismic waves increases from 100% to 1000%. SEMS with greater seismic frequency will give seismic alike waves but greater energy is embedded by EM waves and hence further distance the waves travel.

  14. Field testing of CP current requirements at depths down to 1300m on the Norwegian continental shelf from 63 to 67 {degree} N

    SciTech Connect

    Fischer, K.P.

    1999-07-01

    On the Norwegian Continental Shelf exploration has started in the area of the shelf between 63 and 67 N for water depths down to 1,500m. A field-testing program has been performed at depths from 100m down to 1,300m, which covered exposures at the blocks Helland Hansen, Moere West, Ormen Lange, Vema/Nyk and Gjallar. Testing has been done to establish the CP current demand for C- steel, thermally sprayed aluminium, stainless steel (6 Mo) and titanium (grade 5). The initial current demand in the zone from 100m down to 200m was found to be especially high ({gt} 0.22 A/m{sup 2}). While at depths from 600m and down to 1,300m depth an initial design current density of 0.22 A/m{sup 2} resulted in a polarization to the protective potential on C-steel within a two-month period.

  15. Simplified clear sky model for direct and diffuse insolation on horizontal surfaces

    SciTech Connect

    Bird, R.E.; Hulstrom, R.L.

    1981-02-01

    A detailed comparison was made between five simple broadband models for clear sky global insolation. Compared models were those of Atwater and Ball, Davies and Hay, Watt, Hoyt, and Lacis and Hansen. A sixth simple model, called the Bird model, has been formulated by using parts of these five models and by comparison with the results from three rigorous radiative transfer codes. All of the simple models provide results that agree within < 10% with the three rigorous codes when the sun is in the zenith position. The Bird and Hoyt models agree within 3% with each other and with the results of the rigorous codes. However, the Bird model is easier to implement and has broader application than the Hoyt model.

  16. Déjà vu: leprosy and immigration discourse in the twenty-first century United States.

    PubMed

    White, Cassandra

    2010-03-01

    Leprosy, or Hansen's disease, continues to be feared and poorly understood in the United States, where knowledge of the disease is limited and prevalence is low. The presence of leprosy among immigrants, however, provides fuel for those with an anti-immigration agenda. In recent years, there have been several examples of popular media distortions of statistics and of information on leprosy's properties and contagiousness. As in previous eras of U.S. history, public fears about leprosy seem to be related to anti-immigration or nativist sentiment, which often mask underlying concerns about the potential economic threat of immigrant populations. In this article, I analyse the role of the U.S. media and other stakeholders who may have an interest in generating public fear associated with leprosy, in presenting and at times manipulating data about the disease to create an association between leprosy and undocumented immigration.

  17. Detection of the greenhouse gas signal from space - A progress report

    NASA Technical Reports Server (NTRS)

    Barnett, T. P.; Haskins, R.; Chahine, M.

    1991-01-01

    The spatial distribution of the expected changes in the atmospheric water vapor content and cloud cover, as predicted by the transient greenhouse gas (GHG) simulation of Hansen et al. (1988), are examined to determine whether the signals would be large enough and unique enough to be useful in a GHG detection study. The nature of the predicted GHG signal was first examined using the transient CO2 run from the GISS ocean/atmosphere general circulation model. Next, the remotely sensed irradiance characteristics data (as the measure of water vapor content) supplied by the HIRS/MSU sensors for the area of the equatorial cold tongue region (the region in which there are no measurement stations). It is shown that HIRS/MSU signals can provide data necessary for detecting GHS signals in atmospheric moisture for regions where ground observations are not possible.

  18. Some New Algorithms for Boundary Value Problems in Smooth Particle Hydrodynamics

    DTIC Science & Technology

    1989-06-06

    LABORATORIES HSS, INC ATTN: A D THORNBROUGH ATTN: D HANSEN ATTN: R BACKSTROM ATTN: D DAHLGREN INSTITUTE FOR DEFENSE ANALYSES ATTN: T P WRIGHT ATTN: E BAUER...UNCLASS I FlED Za ;;:( .,~l Tv C • .l.SS•F’C.l- 7.0111 Au T ~ORI TY l )15"~18UT ON ’ .l.JAILA31L"" OF ’lE~Q;>r N/ A s ince Unclass ified fo r r elease...on) SONE NEW ALGORITHHS FOR BOUND.\\RY VALUE PROBLEHS I N SNOOTH PARTICLE HYDiWDYNANI CS 11 ~~’ISONAL Av " ;..OR(S) Campbe ll, Phil N. t )a rvoe

  19. Some risk factors for the progression of periodontal disease.

    PubMed

    Skaleric, U; Kovac-Kavcic, M

    2000-01-01

    Inflammatory periodontal disease is one of the most common diseases of mankind. Gingival inflammation is widespread, but advanced periodontitis is limited to relatively small subgroups of the population. Gingivitis is initiated by microbial plaque deposits on the dento-gingival interface but progression to periodontitis is modified by several environmental, behavioural, biological and health care variables. This paper reviews the reports dealing with some risk factors for periodontal disease published in recent years and compares the data with findings in a Ljubljana population. It is concluded that male smokers with lower education and low frequency of tooth brushing represent a risk population for progression of periodontal disease. Marital status and body mass need further study to be proved as risk factors for periodontitis. A socioecological model proposed by Hansen et al. (1993) should be used for understanding the interplay of different risk factors for progression of periodontal disease.

  20. Effects of acid diffusibility and affinity to cellulose on strength loss of polycarboxylic acid crosslinked fabrics.

    PubMed

    Ji, Bolin; Zhao, Cunyi; Yan, Kelu; Sun, Gang

    2016-06-25

    1,2,3,4-Butanetetracarboxylic acid (BTCA) imparts good anti-wrinkle property to cotton fabrics and results in significant strength loss due to cross-linking and acid degradation of cellulose simultaneously. However, benzophenone-3,3',4,4'- tetracarboxylic acid (BPTCA), an aromatic acid, crosslinks cellulose effectively but causes less strength loss to the products under similar conditions. The difference in damages to cellulose fibers was analyzed by using diffusibility and corresponding affinity of the acids to cellulose fibers, which were estimated by their molecular sizes and Hansen solubility parameters (HSP). Both experimental results and theoretical speculations revealed consistent agreement, indicating that smaller acid molecules could diffuse into cellulose fiber more rapidly and deeply, resulting in more acid degradation. Besides, the aliphatic acid such as BTCA has higher molecular affinity than BPTCA to cellulose, causing additional more degradation of cellulose. Both factors are potential reasons of the observed more severe tensile strength loss of the BTCA treated cotton fabrics.