Relevant bibliographies by topics / FEx

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  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
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Academic literature on the topic 'FEx'

Author: Grafiati
Published: 11 September 2023

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Journal articles on the topic "FEx"

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De, Rajib Lai, and Heinrich Vahrenkamp. "Synthesen neuer Fe–P-Käfigverbindungen / Syntheses of New Fe–P Cage Compounds." Zeitschrift für Naturforschung B 41, no. 3 (March 1, 1986): 273–82. http://dx.doi.org/10.1515/znb-1986-0302.

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Four reaction types were used with the aim of obtaining new cage compounds of composition Fex(CO)y(PR)z- with R = Me, Ph, Tol: oxidation of the compounds Fe2(CO)6(PHR)2, photolysis thereof, reaction between RPCF and Fe2(CO)82- . and reaction between P-Cl containing iron complexes and Fe(CO)42_. Besides several known products, e.g. Fe3(CO)9(PR)2 or Fe4(CO)11(PR)2, and derivatives of the Fe2(CO)6(PRX)2 butterfly type complexes, the new octabisvalene shaped compounds Fe4(CO)2(PR)4 with R = Me, Ph, Tol were obtained and confirmed by a crystal structure analysis for R = Me, Side products of the oxidative conversions were Fe4(CO)12(P2Me2)(MeP-C2H4-PMe) and Fe4(CO)12(P2Tol2)(PHTol)2 which can be derived from the octabisvalene type. Side products of the irradiative conversions were Fe3(CO)8(PPh)(PHPh)2 and (CO)3Fe(μ-PHPh)2Fe(CO)(C6H8). the structure of the latter being proved crystallographically.
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Jin, Wan-Ting, Min Yang, Shuang-Shuang Zhu, and Zhao-Hui Zhou. "Bond-valence analyses of the crystal structures of FeMo/V cofactors in FeMo/V proteins." Acta Crystallographica Section D Structural Biology 76, no. 5 (April 15, 2020): 428–37. http://dx.doi.org/10.1107/s2059798320003952.

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The bond-valence method has been used for valence calculations of FeMo/V cofactors in FeMo/V proteins using 51 crystallographic data sets of FeMo/V proteins from the Protein Data Bank. The calculations show molybdenum(III) to be present in MoFe7S9C(Cys)(HHis)[R-(H)homocit] (where H4homocit is homocitric acid, HCys is cysteine and HHis is histidine) in FeMo cofactors, while vanadium(III) with a more reduced iron complement is obtained for FeV cofactors. Using an error analysis of the calculated valences, it was found that in FeMo cofactors Fe1, Fe6 and Fe7 can be unambiguously assigned as iron(III), while Fe2, Fe3, Fe4 and Fe5 show different degrees of mixed valences for the individual Fe atoms. For the FeV cofactors in PDB entry 5n6y, Fe4, Fe5 and Fe6 correspond to iron(II), iron(II) and iron(III), respectively, while Fe1, Fe2, Fe3 and Fe7 exhibit strongly mixed valences. Special situations such as CO-bound and selenium-substituted FeMo cofactors and O(N)H-bridged FeV cofactors are also discussed and suggest rearrangement of the electron configuration on the substitution of the bridging S atoms.
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Tausta, S. Lori, Tanya Berbasova, Martin Peverelli, and Scott A. Strobel. "The fluoride transporter FLUORIDE EXPORTER (FEX) is the major mechanism of tolerance to fluoride toxicity in plants1." Plant Physiology 186, no. 2 (March 21, 2021): 1143–58. http://dx.doi.org/10.1093/plphys/kiab131.

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Abstract Fluoride is everywhere in the environment, yet it is toxic to living things. How biological organisms detoxify fluoride has been unknown until recently. Fluoride-specific ion transporters in both prokaryotes (Fluoride channel; Fluc) and fungi (Fluoride Exporter; FEX) efficiently export fluoride to the extracellular environment. FEX homologs have been identified throughout the plant kingdom. Understanding the function of FEX in a multicellular organism will reveal valuable knowledge about reducing toxic effects caused by fluoride. Here, we demonstrate the conserved role of plant FEX (FLUORIDE EXPORTER) in conferring fluoride tolerance. Plant FEX facilitates the efflux of toxic fluoride ions from yeast cells and is required for fluoride tolerance in plants. A CRISPR/Cas9-generated mutation in Arabidopsis thaliana FEX renders the plant vulnerable to low concentrations (100-µM) of fluoride at every stage of development. Pollen is particularly affected, failing to develop even at extremely low levels of fluoride in the growth medium. The action of the FEX membrane transport protein is the major fluoride defense mechanism in plants.
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Tandulwadkar, Suparna S., Snehal J. More, Atul S. Rathore, Ajinkya R. Nikam, Lohidasan Sathiyanarayanan, and Kakasaheb R. Mahadik. "Method Development and Validation for the Simultaneous Determination of Fexofenadine Hydrochloride and Montelukast Sodium in Drug Formulation Using Normal Phase High-Performance Thin-Layer Chromatography." ISRN Analytical Chemistry 2012 (May 17, 2012): 1–7. http://dx.doi.org/10.5402/2012/924185.

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A simple, precise, specific, and accurate high-performance thin-layer chromatographic method has been developed for the simultaneous determination of fexofenadine hydrochloride (FEX) and montelukast sodium (MTKT) in pharmaceutical dosage form. The separation was carried out on Merck HPTLC aluminum plates of silica gel G60 F254, ( cm) with 250 μm thickness using toluene: ethyl acetate: methanol: ammonia (30%) (0.5: 7: 2: 0.5, v/v/v/v) as mobile phase. HPTLC separation of the two drugs followed by densitometric measurement was carried out in the absorbance mode at 220 nm. The drugs were resolved satisfactorily with values of and for FEX and MTKT, respectively. The linear regression analysis data for the calibration plots showed good linear relationship with and 0.9998 for FEX and MTKT, respectively, in the concentration range of 2400–10800 ng spot−1 for FEX and 200–900 ng spot−1 for MTKT. The method was validated for precision, robustness, specificity, and accuracy. The limits of detection and quantitation were 100 and 300 ng spot−1, respectively, for FEX and 50 and 100 ng spot−1, respectively, for MTKT. The proposed developed HPTLC method can be applied for identification and quantitative determination of FEX and MTKT in bulk drug and drug formulation.
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Imran, Mohd, Shah Alam Khan, Mohammed Kanan Alshammari, Ashwaq Muiedh Alqahtani, Turkiah Abdullah Alanazi, Mehnaz Kamal, Talha Jawaid, Mohammed M. Ghoneim, Sultan Alshehri, and Faiyaz Shakeel. "Discovery, Development, Inventions and Patent Review of Fexinidazole: The First All-Oral Therapy for Human African Trypanosomiasis." Pharmaceuticals 15, no. 2 (January 21, 2022): 128. http://dx.doi.org/10.3390/ph15020128.

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Human African trypanosomiasis (HAT or ‘sleeping sickness’) is a neglected tropical disease. If untreated, it is always fatal and leads to death. A few treatments are available for HAT, but most of them require a skilled professional, which increases the financial burden on the patient. Recently, fexinidazole (FEX) has been approved by the European Medicine Agency (EMA) and the United States Food and Drug Administration (USFDA) as the first all-oral therapy for the treatment of stage-1 (hemolymphatic) as well as stage-2 (meningoencephalitic) of HAT. Before the FEX approval, there were separate treatments for stage-1 and stage-2 of HAT. This study reviews the discovery, development timeline, inventions, and patent literature of FEX. It was first approved by EMA and USFDA in 2018 and 2021, respectively. FEX was also added to the World Health Organization’s list of essential drugs in 2019. The patent literature search revealed many types of patents/patent applications (compound, salt, process, method of treatment, drug combinations, and compositions) related to FEX, which have been summarized in this article. The authors foresee a great scope to develop more inventions based on FEX (novel salts, polymorphs, drug conjugates, cyclodextrin complex, etc.) for the treatment of many protozoal diseases (Leishmaniasis and Chagas disease), inflammatory diseases, and other microbial infections. New combinations of FEX with other treatments of HAT may also provide fruitful results. This review might be useful to the scientists working on the HAT and other neglected diseases to develop novel inventions and innovations of therapeutic relevance.
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Schutte, Harm K. "Dr. Sören Fex, MD, PhD." Folia Phoniatrica et Logopaedica 54, no. 3 (2002): 116. http://dx.doi.org/10.1159/000063406.

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Thorsen, Tyler J., Qiang Fu, Rob K. Newsom, David D. Turner, and Jennifer M. Comstock. "Automated Retrieval of Cloud and Aerosol Properties from the ARM Raman Lidar. Part I: Feature Detection." Journal of Atmospheric and Oceanic Technology 32, no. 11 (November 2015): 1977–98. http://dx.doi.org/10.1175/jtech-d-14-00150.1.

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AbstractA feature detection and extinction retrieval (FEX) algorithm for the Atmospheric Radiation Measurement Program’s (ARM) Raman lidar (RL) has been developed. Presented here is Part I of the FEX algorithm: the detection of features including both clouds and aerosols. The approach of FEX is to use multiple quantities— scattering ratios derived using elastic and nitrogen channel signals from two fields of view, the scattering ratio derived using only the elastic channel, and the total volume depolarization ratio—to identify features using range-dependent detection thresholds. FEX is designed to be context sensitive with thresholds determined for each profile by calculating the expected clear-sky signal and noise. The use of multiple quantities provides complementary depictions of cloud and aerosol locations and allows for consistency checks to improve the accuracy of the feature mask. The depolarization ratio is shown to be particularly effective at detecting optically thin features containing nonspherical particles, such as cirrus clouds. Improvements over the existing ARM RL cloud mask are shown. The performance of FEX is validated against a collocated micropulse lidar and observations from the Cloud–Aerosol Lidar and Infrared Pathfinder Satellite Observations (CALIPSO) satellite over the ARM Darwin, Australia, site. While the focus is on a specific lidar system, the FEX framework presented here is suitable for other Raman or high spectral resolution lidars.
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Kamal, Sanarya K., and Ammar S. Abbas. "Textural Properties Characterization for NaX and FeX Zeolites by Nitrogen Adsorption-desorption Technique." Iraqi Journal of Chemical and Petroleum Engineering 23, no. 4 (December 30, 2022): 33–41. http://dx.doi.org/10.31699/ijcpe.2022.4.5.

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The zeolite's textural properties have a significant effect on zeolite's effectiveness in the different industrial processes. This research aimed to study the textual properties of the NaX and FeX zeolites using the nitrogen adsorption-desorption technique at a constant low temperature. According to the International Union of Pure and Applied Chemistry, the adsorption-desorption isotherm showed that the studied materials were mixed kinds I/II isotherms and H3 type hysteresis. The Brunauer-Emmett-Teller isotherm was the best model to describe the nitrogen adsorption-desorption better than the Langmuir and Freundlich isotherms. The obtained adsorption capacity and Brunauer-Emmett-Teller surface area values for NaX were greater than FeX. According to the Kelvin equation, Barrett, Joyner, and Halenda model was used to determine pore size distribution, diameter, and average pore volume for the selected zeolites. The pore size distribution for NaX was wider than FeX zeolites, the pore diameter for NaX was less than FeX, and the average pore volume for FeX was greater than the value of NaX average pore volume. The comparative study was carried out with the previous studies, and the comparison showed that the textual properties of the modified zeolites agreed with other studies.
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Vasu, Vignesh, Joon-Sung Kim, Hyun-Seok Yu, William I. Bannerman, Mark E. Johnson, and Alexandru D. Asandei. "Normal, ICAR and photomediated butadiene-ATRP with iron complexes." Polymer Chemistry 9, no. 18 (2018): 2389–406. http://dx.doi.org/10.1039/c8py00463c.

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Gumieniczek, Anna, Anna Berecka-Rycerz, Rafał Pietraś, Izabela Kozak, Karolina Lejwoda, and Paweł Kozyra. "Comparative Study of Chemical Stability of Two H1Antihistaminic Drugs, Terfenadine and ItsIn VivoMetabolite Fexofenadine, Using LC-UV Methods." Journal of Analytical Methods in Chemistry 2019 (April 2, 2019): 1–10. http://dx.doi.org/10.1155/2019/5790404.

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A comparative study of chemical stability of terfenadine (TER) and itsin vivometabolite fexofenadine (FEX) was performed. Both TER and FEX were subjected to high temperature at different pH and UV/VIS light at different pH and then quantitatively analyzed using new validated LC-UV methods. These methods were used to monitor the degradation processes and to determine the kinetics of degradation for both the compounds. As far as the effects of temperature and pH were concerned, FEX occurred more sensitive to degradation than TER. As far as the effects of UV/VIS light and pH were concerned, the both drugs were similarly sensitive to high doses of light. Using all stress conditions, the processes of degradation of TER and FEX followed the first-order kinetics. The results obtained for these two antihistaminic drugs could be helpful in developing their new derivatives with higher activity and stability at the same time.
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Dissertations / Theses on the topic "FEx"

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SARDINHA, F. C. "O Efeito Magnetocalórico nas Ligas Heusler Ni54[Mn(1-x)Fex]19Ga27." Universidade Federal do Espírito Santo, 2008. http://repositorio.ufes.br/handle/10/4759.

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Made available in DSpace on 2016-08-29T15:35:47Z (GMT). No. of bitstreams: 1 tese_2944_.pdf: 4789530 bytes, checksum: 523ebc25e4140437c1560cdf118c63dc (MD5) Previous issue date: 2008-03-28
Neste trabalho, verificou-se experimentalmente a variação da entropia magnética nas ligas Heusler não-estequiométricas Ni54[Mn(1-x)Fex]19Ga27, substituindo-se parcialmente (até 50%) os átomos de Mn por átomos de Fe. Tal estudo focalizou-se principalmente na região de transformação magneto-estrutural a baixas temperaturas. A análise dos difratogramas de raios-X indica que a substituição parcial de Mn por Fe nessa faixa de concentração, ocasiona uma predominância da fase- L21, porém acompanhada de outras fases espúrias. As medidas de magnetização em função da temperatura realizadas a campos baixos revelam que, em toda a faixa de concentração estudada (0 x 0,5), o sistema apresenta uma transição magnética (Ferromagnético Paramagnético) ao atingir a temperatura de Curie, TC, um pouco acima da temperatura ambiente, quando o material se encontra na fase austenítica. E, assim como muitas outras ligas Heusler, o material sofre uma transição estrutural ao ser resfriado a temperaturas inferiores à temperatura de transição martensítica, TM. À medida que se aumenta a concentração de Fe, a temperatura de Curie, TC, sofre uma pequena variação, aumentando em torno de 5%, enquanto que TM diminui lenta e monotonicamente. A variação da entropia, para um campo de 5T, apresenta um máximo SM = - 9,3 J/kg.K para x = 0,1, a uma temperatura T = 250K e, então, diminui para x 0,3, variando linearmente com o campo aplicado.
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Sardinha, Farley Correia. "O efeito magnetocalórico nas ligas Heusler Ni54[Mn(1-x)Fex]19Ga27." Universidade Federal do Espírito Santo, 2008. http://repositorio.ufes.br/handle/10/6285.

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Made available in DSpace on 2016-12-23T14:20:01Z (GMT). No. of bitstreams: 1 EMC_Heusler- parte 1.pdf: 1976712 bytes, checksum: 54cbe3c62f71ef7121b79c6f4e1efaa0 (MD5) Previous issue date: 2008-03-28
Conselho Nacional de Desenvolvimento Científico e Tecnológico
In this work, magnetic entropy change of nonstoichiometric Ni54[Mn(1-x)Fex]19Ga27 Heusler alloys was experimentally verified by partial substitution (up to 50%) of the Mn atoms by magnetic Fe atoms. Such study was mainly concentrated in the magneto-structural transformation region, at low temperatures. The analysis of X-ray diffraction patterns indicate that the partial substitution of Mn atoms by Fe atoms causes predominance of the L21 -phase, however accompanied by spurious phases. The magnetization measurements as a function of the temperature in the low magnetic field reveals that, in all concentration range (0 x 0.5), the system presents a magnetic transition (Ferromagnetic Paramagnetic) at a temperature, TC, near the room temperature, when the material lay in the austenitic phase. Moreover, as many others Heusler alloys, the material undergoes a martensitic structural transition at low temperatures, TM. As the Fe concentration increases, the Curie temperature, TC, undergoes a little variation, increasing around 5%, while TM decreases slowly and monotonically. The magnetic entropy change, for a field of 5T, presents a maximum SM = - 9,3 J/kg.K, for x = 0.1, at a temperature of 250K, and than decreases for x 0.3, changing linearly with the maximum applied field.
Neste trabalho, verificou-se experimentalmente a variação da entropia magnética nas ligas Heusler não-estequiométricas Ni54[Mn(1-x)Fex]19Ga27, substituindo-se parcialmente (até 50%) os átomos de Mn por átomos de Fe. Tal estudo focalizou-se principalmente na região de transformação magneto-estrutural a baixas temperaturas. A análise dos difratogramas de raios-X indica que a substituição parcial de Mn por Fe nessa faixa de concentração, ocasiona uma predominância da fase- L21, porém acompanhada de outras fases espúrias. As medidas de magnetização em função da temperatura realizadas a campos baixos revelam que, em toda a faixa de concentração estudada (0 x 0,5), o sistema apresenta uma transição magnética (Ferromagnético Paramagnético) ao atingir a temperatura de Curie, TC, um pouco acima da temperatura ambiente, quando o material se encontra na fase austenítica. E, assim como muitas outras ligas Heusler, o material sofre uma transição estrutural ao ser resfriado a temperaturas inferiores à temperatura de transição martensítica, TM. À medida que se aumenta a concentração de Fe, a temperatura de Curie, TC, sofre uma pequena variação, aumentando em torno de 5%, enquanto que TM diminui lenta e monotonicamente. A variação da entropia, para um campo de 5T, apresenta um máximo SM = - 9,3 J/kg.K para x = 0,1, a uma temperatura T = 250K e, então, diminui para x 0,3, variando linearmente com o campo aplicado.
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Kelekar, Rajesh. "Study of potentially half-metallic Co²Cr₁₋x[subscript]Fex[subscript]Al heusler alloys /." May be available electronically:, 2006. http://proquest.umi.com/login?COPT=REJTPTU1MTUmSU5UPTAmVkVSPTI=&clientId=12498.

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Anas, Muhammad. "Étude de la magnétorésistance dans les alliages Fex SiO1-x et des multicouches discontinues FE/SiO." Nancy 1, 2001. http://www.theses.fr/2001NAN10212.

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Des films minces d'alliages Fex(SiO)1-x et des multicouches discontinues Fe/SiO ont été préparés par coévaporation de fer et d'oxyde de silicium. La structure des films a été caractérisée par microscopie électronique, diffraction de rayons X et spectrométrie d'absorption infrarouge. Les propriétés magnétiques ont été décrites à partir des cycles d'hystérésis de l'aimantation en fonction du champ magnétique appliqué et des courbes FC-ZFC. Les propriétés de transport électronique ont été déterminées à partir de mesures de magnétorésistance. Les alliages Fex(SiO)1-x avec 0,40°≤°x°≤°0,50 sont superparamagnétiques et on observe un effet de magnétorésistance tunnel de l'ordre de 2°% vers 100°K. Les multicouches avec une épaisseur de fer comprise entre 5 et 8°Å présentent également un comportement superparamagnétique. La magnétorésistance, mesurée dans les directions parallèle et perpendiculaire aux couches, reste inférieure à 2°%
Thin films of Fex(SiO)1-x alloys and Fe/SiO discontinuous multilayers were prepared by coevaporation of iron and silicon oxyde. The structure of the films was characterized with electron microscopy, X?ray diffraction and infrared absorption spectrometry. The magnetic properties were described from the hysteresis loops of the magnetization versus the applied magnetic field and from FC-ZFC curves. The properties of electronic transport were determined from magnetoresistance measurements. The alloys with 0,30°≤°x°≤°0,50 are superparamagnetic and a tunnel magnetoresistance is observed. Its value is equal to about 2°% near 100°K. For an iron thickness between 5 and 8°Å, the multilayers present a superparamagnetic behavior. The magnetoresistance, measured in the directions parallel and perpendicular to the films, remains less than 2°%
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Bensamka, Faouzi. "Etude par mesures de susceptibilité magnétique et par spectrométrie Mössbauer du comportement verre de spin dans les composés isolants dilués Fex Mg1-x Cl2." Grenoble 2 : ANRT, 1986. http://catalogue.bnf.fr/ark:/12148/cb37595941b.

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Karlsson, Maija. "Finn fem fel : Ett verktyg för återmatning och hantering av fel i SDE's montering." Thesis, Mälardalen University, Department of Innovation, Design and Product Development, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-908.

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Examensarbetets syfte är att utforma rutiner och verktyg för att säkerställa att relevant information om allvarliga och frekventa problem når föregående processer. Den information som föregående processer tar emot ska vara av sådan karaktär att de vet vad de ska fokusera på i sitt förbättringsarbete. Strävan har varit att ta fram ett felrapporteringsverktyg där alla fel som påträffas i produktionen ska kunna gå att rapporteras in. Utifrån den datainsamling som har gjorts via sekundär- och primärdata har den information som ska rapporters in tagits fram. Felrapporteringen ska ske i en Lotus Notes databas, detta för att programmet redan finns inom SDE`s väggar. De fel som hittas och rapporters in i felrapporteringsverktyget riktas var och en mot ett ansvarigt område. Tillexempel om det fattas ett hål på en artikel och det hålet finns med på ritningen riktas felet mot inköp. Varje ansvarigt område ska månadsvis skriva ut och åtgärda sina tre ”fem i botten” scorecard i kategorierna konsekvens, kostnad och frekvens. Fem i botten scorecarden bygger på paretoprincipen, det betyder att scorecarden visar de fem största felen varje månad i de tre olika kategorierna. Den information som loggas in i felrapporteringsverktyget kommer även att vara ett reklamationsunderlag då inköp står som ansvarigt område. Dataanalysen kommer att göras i ett Business Intelligence verktyg som heter QlikView. Detta för att QlikView på ett smidigt sätt tar data från en eller flera databaser och gör det möjligt för användaren att snabbt och enkelt analysera informationen.

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Garçon, Guillaume. "Role potentiel du fer (fe2+, fe3+) dans la toxicite pulmonaire d'une exposition concomitante aux oxydes de fer (wustite, hematite) et au benzo(a)pyrene chez le rat sprague dawley (doctorat : toxicologie)." Lille 2, 2000. http://www.theses.fr/2000LIL2P257.

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Wilder, Marie. "Fet, ful, helt fel...? : Om beröringspunkter mellan skam och kropp." Thesis, Umeå universitet, Psykoterapi, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-42113.

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Denna studie har ägnats åt att studera och fördjupa kunskapen kring skamaffekten i relation till negativa kroppsupplevelser. Det har skett genom en litterarstudie vars utgångspunkt har varit tre frågeställningar. Den första frågeställningen har berört hur skamaffekten kan beskrivas. Som svar på denna frågeställning visar studien att skammen har många markörer, att skammen har sina tidliga kroppsliga uttryck, att skamupplevelsen är en mycket obehaligt upplevelser och att människor på en mängd sätt försöker skydda sig från skamupplevelsen. Till följd av alla skyddsmekanismer kan skamaffekten uppträda i en högst förklädd form och vara svår att identifiera som just skam. Studien visar även att skam som en social emotion påverkar den relationella förmågan på ett högst negativt sätt. Skam bidrar till att individen isolerar sig och till uppkomst av olika former av patologiska tillstånd. Samtidigt belyses att skam på många sätt fyller viktiga funktioner för individen och för individen i samhället. Frågeställning nummer två har gällt vilka källor skam har. Studen visar flera olika skamkällor och olika tankar kring hur skam uppstår. Intrapsykiska källor har belysts liksom relationella och även källor till skam sprungna ur den sociala kontexten. Genus och traumaperspektiv har lyfts fram och även perspektivrörande personlighetsstruktur. Den tredje frågeställningen har handlat om skammens koppling till människans kroppslighet. Här visar studien att utvecklingsperspektiv kan visa på kopplingar mellan skam och kroppslighet. Det faktum att skammen tenderar att verka i det fördolda knyter affekten till icke- verbaliserat upplevande. Sexualiteten och männskans behov av beröring är kroppsnära och även skamnära områden visar studien. Normer i det postmodernistiska samhållet, genus och samhälleliga hierarkier, med koppling tilltill kroppen och skamaffekten, är ytterligare perspektiv som belyses. Diskussionen understryker det kliniska värdet av att ha fördjupande kunskaper om skamaffekten liksom värdet av att det kliniska arbetet med negativa kroppsupplevelser göra det utifrån kunskaper om skammens olika markörer och källor. Behov av ytterligare studier inom områdets påtalas.
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Drissi, Sidi El Hassane. "Oxydation des espèces du fer en milieu aqueux carbonate : préparation et propriétés thermodynamiques de l'hydroxyde carbonate Fe2+-Fe3+ en milieu aqueux (rouille verte 1 carbonatée) et sa formation directe à partir du fer métallique." Nancy 1, 1995. http://www.theses.fr/1995NAN10349.

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Les ions carbonate constituent l'espèce la plus abondante en solution dans les eaux naturelles continentales. Ce travail consiste à déterminer les conditions de préparation de l'hydroxyde Fe2+-Fe3+ carbonate de structure rouille verte I à partir de l'oxydation d'hydroxyde ferreux précipite en mélangeant du sulfate ferreux (mélantérite) et de la soude et en ajoutant immédiatement du carbonate de sodium Na2Co3. Les deux paliers d'oxydation observés correspondent, pour le premier à la formation de la rouille verte I, et pour le second à celle du produit final qui peut être un oxyhydroxyde ferrique ou de la magnétite. Le rapport des concentrations initiales R=init/init détermine le régime de précipitation et d'oxydation ultérieure. La caractérisation et l'étude structurale des produits obtenus se font par spectrométrie Mössbauer et diffraction des rayons X. La formule chimique de la rouille verte I carbonatée Fe2+4Fe3+2(oh)12Co3,2H2O, son potentiel chimique, le diagramme potentiel-pH sont déterminés. Une conséquence directe de ce travail concerne la formation de rouille verte I carbonatée à partir de fer métallique à la suite de l'immersion d'un échantillon d'acier. Grâce à la substitution de Fe2+ par Ni2+ et Mg2+ dans la rouille verte I carbonatée, on peut mettre en exergue l'isomorphisme de cette phase cristalline avec les minéraux naturels (pyroaurite et reevisie) et arrêter le processus d'oxydation à la première étape. Enfin, la rouille verte I carbonatée se forme de façon tout à fait similaire si les ions carbonate sont introduits en solution à partir de Co2 gazeux
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Marcelli, Thierry. "Propagation de feux de forêt : Modélisation et étude expérimentale de la transition d'un feu de surface vers un feu de cime." Corte, 2002. http://www.theses.fr/2002CORT0005.

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Ce travail porte sur la modélisation de la transition feu de surface-feu de cime. Pour cela, nous avons développé un modèle semi-physique de transition. Ce modèle est basé sur le modèle de propagation d'un feu de litière développé à l'Université de Corse ; ce modèle ne prenant en compte les échanges vers une strate supérieure de combustible nous avons décidé d'utiliser une méthode d'amélioration basée sur la réduction de modèle complet, en particulier celui de l'IUSTI de Marseille. Cette réduction a fait apparaître un terme d'échange entre la colonne chaude convective et le combustible de la strate supérieure, et a permis l'amélioration de notre modèle par l'ajout d'un terme supplémentaire représentant ces échanges. Afin d'évaluer ce terme, nous avons mis en place une campagne de mesure à l'échelle du laboratoire. Etant les premiers à effectuer ce genre d'expériences à l'Université de Corse, nous avons dû tout d'abord mettre au point un protocole afin d'accéder aux données caractéristiques du feu : température, vitesse de propagation. Les mesures de température ont été réalisées à l'aide de thermocouples, dans la zone de combustion et de panache. Nous avons développé une méthode originale de compensation numérique de température dans la zone de flamme, car les thermocouples utilisés ne donnent pas une bonne représentation des fluctuations de température. Cette compensation a permis de restituer la dynamique des phénomènes, et ainsi, à l'aide du calcul du temps de transit entre deux capteurs, de calculer la vitesse ascensionnelle des gaz de combustion. Une autre série d'expériences réalisée sur la transition a permis de calculer le terme d'échange afin d'effectuer des simulations de notre modèle. Les résultats obtenus sont encourageants, ils représentent bien les étapes et les tendances de la transition d'un feu de surface vers un feu de cime.
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Books on the topic "FEx"

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Giovanoli, Diego, Flurin Camenisch, Duri Stupan, and Alfred Schneider. Val Fex: Ausblick in ein stilles Tal. Bern: Haupt, 2001.

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Fen fei. Taibei Shi: Yuan liu chu ban shi ye gu fen you xian gong si, 2001.

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Fei fen zhi ai. Xianggang: Tian di tu shu you xian gong si, 2017.

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Fan fei hu die luan fen fen. Tianjin Shi: Bai hua wen yi chu ban she, 2004.

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Shi fei fen bu qing. Taibei Shi: Fei tian wen hua shi ye you xian gong si, 2004.

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Long, Teng, and Luo Luo, eds. Fei fan fen si tuan. Nanchang: Er shi yi shi ji chu ban she, 2011.

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Fei li xing kang fen. 2nd ed. Beijing Shi: Zhong xin chu ban she, 2010.

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Rang qing nian fen fei. Beijing: Beijing shi fan xue yuan chu ban she, 1985.

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Chen lun yu fen fei. Ha'erbin: Heilongjiang ren min chu ban she, 1986.

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Zhongguo dian xing xiao fei jiu fen fa lü fen xi. Beijing: Zhongguo fa zhi chu ban she, 2000.

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Book chapters on the topic "FEx"

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Stepanyuk, V. S., B. L. Grigorenko, A. A. Katsnelson, and A. Szasz. "Investigation of the Stable Structures of Nix Fex, Nix−yPy, Nix−yBy, Fex−yPy, and Fex−yBy (x =13,y<13) Microclusters." In Physics and Chemistry of Finite Systems: From Clusters to Crystals, 471–77. Dordrecht: Springer Netherlands, 1992. http://dx.doi.org/10.1007/978-94-017-2645-0_62.

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Schaad, Andreas, and Dominik Binder. "FEX – A Feature Extractor for Real-Time IDS." In Lecture Notes in Computer Science, 221–37. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-91356-4_12.

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Sale, Patrizio, Giovanni Stellin, Stefano Masiero, Francesco Becchi, and Wiktor Sieklicki. "FEX a Fingers Extending eXoskeleton for Rehabilitation and Regaining Mobility." In Advances in Service and Industrial Robotics, 813–24. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-61276-8_86.

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Chen, Cong, Tianshu Zhang, Richard Donelson, Dewei Chu, Thiam Teck Tan, and Sean Li. "Thermoelectric Properties of Na0.8 Co1-x Fex O2 Ceramic Prepared by Spark Plasma Sintering." In Ceramic Materials for Energy Applications IV, 35–41. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2015. http://dx.doi.org/10.1002/9781119040323.ch4.

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Antia, David D. J. "Water Treatment and Desalination Using the Eco-materials n-Fe0 (ZVI), n-Fe3O4, n-FexOyHz[mH2O], and n-Fex[Cation]nOyHz[Anion]m [rH2O]." In Handbook of Nanomaterials and Nanocomposites for Energy and Environmental Applications, 3159–242. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-36268-3_66.

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Antia, David D. J. "Water Treatment and Desalination Using the Eco-materials n-Fe0 (ZVI), n-Fe3O4, n-FexOyHz[mH2O], and n-Fex[Cation]nOyHz[Anion]m [rH2O]." In Handbook of Nanomaterials and Nanocomposites for Energy and Environmental Applications, 1–85. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-11155-7_66-1.

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Gülçin, İlhami. "Fe3+–Fe2+ Transformation Method: An Important Antioxidant Assay." In Advanced Protocols in Oxidative Stress III, 233–46. New York, NY: Springer New York, 2014. http://dx.doi.org/10.1007/978-1-4939-1441-8_17.

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Jancik, D., and M. Mashlan. "Fast Determination of Fe2+/Fe3+ Ratio in Ilmenite." In Industrial Applications of the Mössbauer Effect, 715–19. Dordrecht: Springer Netherlands, 2002. http://dx.doi.org/10.1007/978-94-010-0299-8_80.

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Brandt, Paul F., David A. Lesch, Philip R. Stafford, Thomas B. Rauchfuss, Joseph W. Kolis, and Lisa C. Roof. "Fe2 (S2 )(CO)6 and Fe3 Te2 (CO)9,10." In Inorganic Syntheses, 112–16. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2007. http://dx.doi.org/10.1002/9780470132623.ch17.

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Höfer, H. E. "Quantification of Fe2+/Fe3+ by Electron Microprobe Analysis — New Developments." In Mössbauer Spectroscopy, 239–48. Dordrecht: Springer Netherlands, 2003. http://dx.doi.org/10.1007/978-94-010-0045-1_22.

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Conference papers on the topic "FEx"

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Oleksenko, Oleksii, Dmitrii Kuvaiskii, Pramod Bhatotia, and Christof Fetzer. "Fex: A Software Systems Evaluator." In 2017 47th Annual IEEE/IFIP International Conference on Dependable Systems and Networks (DSN). IEEE, 2017. http://dx.doi.org/10.1109/dsn.2017.25.

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Zelek, John S. "FEX: A Knowledge-Based System For Planimetric Feature Extraction." In 1988 Technical Symposium on Optics, Electro-Optics, and Sensors, edited by Philip N. Slater. SPIE, 1988. http://dx.doi.org/10.1117/12.945697.

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Muller, Patrick, Krishna Narasimhan, and Mira Mezini. "Fex: Assisted Identification of Domain Features from C Programs." In 2021 IEEE 21st International Working Conference on Source Code Analysis and Manipulation (SCAM). IEEE, 2021. http://dx.doi.org/10.1109/scam52516.2021.00029.

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Cieslak, Jakub. "Debye Temperature of the FeX (X = Cr, V) Sigma-Phase." In INDUSTRIAL APPLICATIONS OF THE MOSSBAUER EFFECT: International Symposium on the Industrial Applications of the Mossbauer Effect. AIP, 2005. http://dx.doi.org/10.1063/1.1923682.

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Copeland, Christopher, Ricardo Metz, and Muhammad Ashraf. "VIBRATIONAL SPECTROSCOPY AND THEORY OF Fex+(CH4)n (x =2,3) (n = 1–3)." In 71st International Symposium on Molecular Spectroscopy. Urbana, Illinois: University of Illinois at Urbana-Champaign, 2016. http://dx.doi.org/10.15278/isms.2016.tj06.

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Inhester, B., G. Stenborg, R. Schwenn, N. Srivastava, and B. Podlipnik. "LASCO FeXIV and FeX observations of the solar coronal rotation during the recent solar activity minimum." In The solar wind nine conference. AIP, 1999. http://dx.doi.org/10.1063/1.58763.

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Teixeira, Eldânae Nogueira, Cláudia M. L. Werner, and Aline P. V. Vasconcelos. "Flexibilização para Representação de Características no Ambiente Odyssey." In Anais Estendidos do Simpósio Brasileiro de Componentes, Arquiteturas e Reutilização de Software. Sociedade Brasileira de Computação, 2008. http://dx.doi.org/10.5753/sbcars_estendido.2008.24360.

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A modelagem de variabilidades, que representa similaridades e diferenças de uma família de sistemas (ou domínios) em abordagens de reutilização de software, pode ser especificada através da modelagem de características. Essa modelagem pode ser representada em diferentes notações, cuja escolha depende da familiaridade da equipe, dentre outros fatores. Este trabalho está inserido no contexto do ambiente Odyssey, uma infra-estrutura de reutilização baseada em modelos de domínio, originalmente estruturado de forma fixa, disponibilizando apenas a sua notação proprietária Odyssey-FEX. O objetivo deste trabalho é flexibilizá-lo, de modo a comportar novas notações de características e a possibilidade de transição entre elas.
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Guhathakurta, Madhulika, Richard R. Fisher, and Keith Strong. "Observations and physical interpretations of coronal rays from white light, soft X-ray, red (FeX) and green (FeXIV) lines analyses." In Proceedings of the eigth international solar wind conference: Solar wind eight. AIP, 1996. http://dx.doi.org/10.1063/1.51372.

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Souza, Phamella Rocha de, Murilo Ribeiro Sanches, Bárbara de Lima Pedroso, Ana Elisa Caldas Gonçalves, and Walter De Biase da Silva Neto. "MORBIMORTALIDADE DE INSUFICIÊNCIA RENAL NOS ÚLTIMOS 10 ANOS: UMA ANÁLISE EPIDEMIOLÓGICA." In I Congresso Brasileiro de Saúde Pública On-line: Uma abordagem Multiprofissional. Revista Multidisciplinar em Saúde, 2021. http://dx.doi.org/10.51161/rems/2888.

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Introdução: A Insuficiência Renal (IR) é a condição em que os rins perdem capacidade de exercer suas funções básicas. Atualmente, é considerada uma das doenças que mais diminuem a qualidade de vida dos doentes, sendo sua taxa de mortalidade alta. É necessária a análise epidemiológica da mortalidade por IR para possibilitar avanços nas condutas terapêuticas e a elaboração de políticas públicas voltadas para o seu manejo. Objetivo: Compreender a epidemiologia da mortalidade por IR, analisando as variáveis idade e sexo. Material e métodos: Estudo transversal que utilizou o banco de dados do Sistema de Internações Hospitalares (SIH SUS). Foram investigados os dados referentes à mortalidade, faixa etária (FE) e sexo entre os anos de 2010 a 2020. Estratificou-se as idades em faixas etárias (FE), sendo FE1: 0-19 anos; FE2: 20-39 anos; FE3: 40-59 anos; FE4: 60-79 anos e FE5: 80 ou mais anos. Resultados: Foram analisados 139.979 casos, sendo que houve 78.988 óbitos (56%) do sexo masculino e 60.991 óbitos (44%) do sexo feminino. A taxa de mortalidade encontrada por sexo foi de 12,47% e 12,59%, do sexo masculino e feminino respectivamente. A maior mortalidade foi encontrada em FE4, com 66.693 óbitos (47,6%). FE5 e FE3 apresentaram mortalidade semelhantes, 32.762 (23,4%) e 31.154 (22,2%) respectivamente. Já FE2 e FE1 apresentaram mortalidades menos expressivas, com 7.455 (5.3%) em FE2 e 1.915 (1,5%) em FE1. A maior taxa de mortalidade foi encontrada em FE5 com o valor de 27,60. Enquanto a menor taxa de mortalidade foi de FE1, com 2,82. Conclusão: A IR possui maior prevalência em homens idosos quando o desfecho é o óbito e uma menor prevalência entre jovens e crianças, indicando a idade avançada com um fator de risco associado à IR. Quanto ao sexo, houve maior prevalência no sexo masculino. O incremento de custos ao sistema de saúde deve ser considerado, tendo em vista o envelhecimento e desenvolvimento de doenças crônicas na população brasileira. A IR representa um desafio para a saúde pública no Brasil, sendo a análise epidemiológica feita essencial para o direcionamento de estratégias preventivas e de promoção da saúde.
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Gamez-Montero, P. Javier, and Esteve Codina. "Contact Stress in a Gerotor Pump." In ASME 2003 International Mechanical Engineering Congress and Exposition. ASMEDC, 2003. http://dx.doi.org/10.1115/imece2003-43233.

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The aim of the first part of this paper is to reach the optimum design parameters of a gear set when it works as part of an internal gear pump type gerotor. The performance of the gear teeth and the whole gear set are evaluated through analytical studies to obtain the maximum contact stress in gear teethe and the volumetric characteristics. Several gear sets have been examined and the results are presented. The aim of the second part of the this paper is to documents a better understanding of the performance of a crankshaft mounted gerotor pump for IC engines lubrication. Modeling, simulation and experimental work have been examined for a specific unit. A preliminary 2D simulation is carried out by using the Finite Element Method (FEX) to calculate the maximum contact stress. At the testing phase, a prototype model of the gear set provides the maximum contact stress on a pair of teeth by using photoelasticity measurement techniques. The results are exposed and discussed and possible alterations are proposed.
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Reports on the topic "FEx"

1

Chand, Duli, Rob Newsom, Tyler Thorsen, Erol Cromwell, Chitra Sivaraman, Connor Flynn, John Shilling, and Jennifer Comstock. Aerosol and Cloud Optical Properties from the ARM Raman Lidars: The Feature Detection and Extinction (FEX) Value-Added Product. Office of Scientific and Technical Information (OSTI), August 2019. http://dx.doi.org/10.2172/1560857.

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McIntyre, L., G. Parsons, and J. Rafferty. Tag Image File Format Fax eXtended (TIFF-FX) - image/tiff-fx MIME Sub-type Registration. RFC Editor, September 2002. http://dx.doi.org/10.17487/rfc3250.

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McIntyre, L., G. Parsons, and J. Rafferty. Tag Image File Format Fax eXtended (TIFF-FX) - image/tiff-fx MIME Sub-type Registration. RFC Editor, February 2005. http://dx.doi.org/10.17487/rfc3950.

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Cornacchia, Massimo. Measuring FEL Radiation Properties at VISA-FEL. Office of Scientific and Technical Information (OSTI), August 2002. http://dx.doi.org/10.2172/800063.

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Aldrich, William F. Fox Conner. Fort Belvoir, VA: Defense Technical Information Center, April 1993. http://dx.doi.org/10.21236/ada264549.

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Clark, Stephen Nowland. Fed-X:. Gaithersburg, MD: National Institute of Standards and Technology, 1990. http://dx.doi.org/10.6028/nist.ir.4371.

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Clark, Stephen Nowland, and Don Libes. Fed-X:. Gaithersburg, MD: National Institute of Standards and Technology, 1992. http://dx.doi.org/10.6028/nist.ir.4822.

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Ito, Takatoshi, and Masahiro Yamada. Did the Reform Fix the London Fix Problem? Cambridge, MA: National Bureau of Economic Research, April 2017. http://dx.doi.org/10.3386/w23327.

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Johnson, Peggy S., Daniel J. Koning, and Stacy S. Timmons. A hydrogeologic investigtion of groundwater-fed springs and wetland at La Cienega, Santa Fe County, New Mexico. New Mexico Bureau of Geology and Mineral Resources, 2015. http://dx.doi.org/10.58799/ofr-569.

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Ackermann, Mark, and Thor Osborn. Innovation Flex Time. Office of Scientific and Technical Information (OSTI), March 2022. http://dx.doi.org/10.2172/1847493.

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