Relevant bibliographies by topics / Conditions during the study

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Academic literature on the topic 'Conditions during the study'

Author: Grafiati
Published: 4 June 2021
Last updated: 1 February 2022

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Journal articles on the topic "Conditions during the study"

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Mohapatra, Dr Sulata. "Study of Pulmonary Function Tests During Pregnancy At Physiological Variable Conditions." Journal of Medical Science And clinical Research 05, no. 05 (May 12, 2017): 21795–800. http://dx.doi.org/10.18535/jmscr/v5i5.93.

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Carlberg, Torbjörn. "Experimental study of morphological stability during different convection conditions." Acta Astronautica 40, no. 2-8 (January 1997): 407–14. http://dx.doi.org/10.1016/s0094-5765(97)00108-2.

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Mitsuya, Teruaki. "Study of temperature and melting conditions during flash fusing." Optical Engineering 30, no. 1 (1991): 111. http://dx.doi.org/10.1117/12.55758.

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Cai, X. ‐M, R. A. S. Hourston, and D. G. Steyn. "A numerical study of meteorological conditions during pacific ‘93." Atmosphere-Ocean 38, no. 3 (September 2000): 457–79. http://dx.doi.org/10.1080/07055900.2000.9649656.

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Sabra, Sherifa. "Influence of Applying Preventive Health Conditions Strategy during Coronavirus Pandemic in KSA." Biotechnology and Bioprocessing 2, no. 1 (February 1, 2021): 01–03. http://dx.doi.org/10.31579/2766-2314/014.

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This research was for "Influence of Applying Preventive Health Conditions Strategy (PHCS) during Coronavirus Pandemic (CVP) in Kingdom of Saudi Arabia (KSA)". The target was through questionnaire to individuals in KSA. That application of PHCS and persons contribution accountable establishments, to cover Coronavirus infection (CVI), caused CVP and control to redact it, numbers to maintain Saudi health (SH). Using "Cross-sectional Study Method", were on Network for survey study in Saudi community (SC), collected data and had analyzed. Remained 99% participants to questionnaire about everyone, remained 89% dedicated to smearing PHCS closely a total. It was 100% reinforced PHCS, that 98% had approving support non-compliance PHCS. As stayed 83% stationary numerous parties from their doings, and was 100% all individuals, braked family visits in anticipation of any CVI. That stared 85% immobile market exit except for about individuals since it was a need to achieve family responsibilities, and others dedicated at home to decrease CVI. Experiential 74% produced the PHCS to have injury in three quarters because of discontinuing the numerous doings. Here 26% originated that a quarter of persons had cases of CVI, where 55% the relations applied the PHCS about partial because of the attendance of people with the similar family. That concluded the results showed the existence of the PHCS importance in the existence and importance of the CVP. The extent to KSA individuals helped to reduce CVI and protect SH. That recommended PHCS position to SH reserve, deliver a fit culture, and reinforce persons for their help.
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Zakirhodjaev, R., and H. Shavkatkhodjaev. "STUDY OF REFRACTION CHANGES DURING PREGNANCY AND AFTER CHILDBIRTH IN PREGNANT WOMEN." UZBEK MEDICAL JOURNAL 4, no. 1 (April 30, 2020): 9–16. http://dx.doi.org/10.26739/2181-0664-2020-4-2.

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Although ocular conditions are commonly encountered in pregnancy, their management in pregnancy and during labor is still debate. Our review synthesizes the existing evidence on pregnancy and labor impact on visual outcome in myopic patients. We aimed to evaluate the changes in ocular physiology during pregnancy, the characteristics of myopia in pregnant population.
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Tan, Yunfei, Xiangyang Wu, Wenge Chen, Donghui Jiang, Guihong Zou, Zhen Fang, Zhangyang Liu, Yang Gao, Zhiyou Chen, and Guangli Kuang. "Study of Fault Conditions During Heat Treatment of Nb3Sn Strand." IEEE Transactions on Applied Superconductivity 26, no. 4 (June 2016): 1–4. http://dx.doi.org/10.1109/tasc.2016.2519892.

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HONSTEAD, JOHN P., DAVID W. DREESEN, ROBERT D. STUBBLEFIELD, and ODETTE L. SHOTWELL. "Aflatoxins in Swine Tissues During Drought Conditions: an Epidemiologic Study." Journal of Food Protection 55, no. 3 (March 1, 1992): 182–86. http://dx.doi.org/10.4315/0362-028x-55.3.182.

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The purpose of this joint Agricultural Research Service/Food Safety and Inspection Service (FSIS) project was to determine the presence of aflatoxins in swine tissues in the United States during a drought year (1988). A worst-case sampling plan for aflatoxin from swine slaughtered in FSIS inspected plants was conducted during the drought. Swine tissues were screened for aflatoxins by high pressure liquid chromatography and confirmed by two-dimensional thin layer chromatography. Results indicate that swine effectively metabolize aflatoxins present in feed. Eight of 160 (5%) liver samples had confirmed aflatoxin, with only 4 of these 8 exceeding 0.1 ppb. Only 1 of 160 liver samples had total aflatoxin B1 and M1 in excess of the milk enforcement level of 0.5 ppb for M1 alone. In severe drought conditions, the presence of aflatoxins in animal feed does not result in a significant frequency or magnitude of tissue residues in swine even in worst-case type biased sampling. Since swine appear to be the most sensitive species insofar as tissue concentration of aflatoxins, it is logical to conclude that residues in other food-producing species would be significantly lower.
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Smedman, A., U. Högström, H. Bergström, A. Rutgersson, K. K. Kahma, and H. Pettersson. "A case study of air-sea interaction during swell conditions." Journal of Geophysical Research: Oceans 104, no. C11 (November 15, 1999): 25833–51. http://dx.doi.org/10.1029/1999jc900213.

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Fryda, L., C. Sobrino, M. Glazer, C. Bertrand, and M. Cieplik. "Study of ash deposition during coal combustion under oxyfuel conditions." Fuel 92, no. 1 (February 2012): 308–17. http://dx.doi.org/10.1016/j.fuel.2011.08.013.

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Dissertations / Theses on the topic "Conditions during the study"

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Román, Cascón Carlos. "Variability of turbulent fluxes (momentum, heat andCO2) during Upwelling conditions. A case study." Thesis, Uppsala universitet, Luft-, vatten och landskapslära, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-303975.

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Measurements of turbulent fluxes (momentum, sensible heat, latent heat and CO2) at two different heights were studied from data of a tower at Ostergarnsholm Island (Baltic Sea) during one week, while calculations using bulk formulations of fluxes were done with measurements in the tower and in two buoys moored at different locations. Different behaviors are found for the different fluxes. Measured latent heat flux shows higher correlation with calculations than measured sensible heat flux. For the CO2 flux, this relation was not found. Also all measured fluxes at the tower agree better with calculations when they are done under unstable conditions, meaning that the tower is better measuring the area where the measurements are taken in the buoys (near the tower). The studied period includes an upwelling and a high horizontal surface heterogeneity was found during most of the periods. It was seen using the comparison between calculated and measured fluxes and also using satellite images of the studied site. The footprint area is the area at some distance upwind from the tower where the surface conditions are influencing the measurements of the flux of some quantity at certain height in the tower, and this footprint area is continuously changing because its highly dependence with the stratification. Since during all the period the stratification was changing from slightly stable to slightly unstable conditions, the surface heterogeneity can also be seen in the variability of measured fluxes at different heights. One important conclusion in the study is that calculations of the fluxes using bulk formulations may not be useful when high variability of different parameters (as sea surface temperature and pCO2w ) is expected, as for example during upwelling situations and near coast, where the phytoplankton can significantly influence the concentration of CO2 at the surface. A wide study is done, including meteorological and oceanographic parameters, fluxes, comparisons, relations with parameters, transfer coefficients, dependences with the stratification and satellite images.
Mätningar av flöden (impuls, värme, vattenånga och CO2) vid två olika höjder studerades med data från en mast på ön Östergarnsholm (i Östersjön) under en vecka, beräkningar av flödena gjordes med mätningar av atmosfäriska parametrar från samma mast samt data från två bojar på två olika platser. Man fann olika beteenden för de beräknade och uppmätta flödena. Direkt (sensibelt) värme visade högre korrelation mellan beräkningar och uppmätta sensibla värmeflöden . För CO2- flödet fann man inte detta samband. För alla flödena överensstämmer mätningarna bättre med beräknade flöden när de är gjorda under instabila förhållanden, vilket betyder att under dessa förhållanden representerar mätningarna i masten bättre området där bojarna är placerade. Den studerade perioden inkluderar en period med upvällning (upwelling) och en hög horisontell variabilitet i ytparametrar under den största delen av denna period. Detta visades genom jämförelser mellan de beräknade och de uppmätta flödena och även genom satellitmätningar. Det område uppvind masten där ytan påverkar flöden uppmätta i masten på en viss nivå kallas ”footprint area”, och denna footprint area förändras kontinuerligt på grund av det stora beroendet av skiktningen i atmosfären. Eftersom skiktningen under hela perioden förändrades från något stabilt till något instabilt, kan ytvariabiliteten även ses i variationen av uppmätta flöden på olika höjder. En viktig slutsats i studien är att beräkningar av flödena som görs med standardformler inte bör användas vid förhållanden med hög horisontell och vertikal variation av olika parameter (som havsytetemperatur och pCO2w), som till exempel under uppvällningssituationer och nära kusten, där phytoplankton markant kan påverka koncentrationen av CO2 vid ytan. Studien inkluderar meteorologiska, oceanografiska parametrar, flöden, samband med parametrar, överförings koefficienter, beroende av stabilitet och satellitbilder.
Flujos turbulentos (momento, calor sensible, calor latente y CO2) en 2 alturas diferentes fueron estudiadas usando medidas de una torre en la Isla de Östergarnsholm (Mar Báltico) durante una semana. Los flujos también fueron calculados usando formulaciones con medidas de la torre y de dos boyas ancladas en diferentes localizaciones. Diferentes características para los distintos flujos fueron encontradas. El flujo de calor latente muestra una relación más alta con los cálculos que el flujo de calor sensible. No se encontró esta relación para el flujo de CO2. También, todos los flujos medidos en la torre coinciden mejor con los flujos calculados cuando estos son hechos bajo condiciones de estratificación inestable, significando que la torre mide mejor el área donde son cogidas las medidas en las boyas (cerca de la torre). El periodo estudiado incluye un afloramiento costero y se encontró una alta heterogeneidad horizontal en la superficie del mar durante la mayoría de los periodos. Esto fue estudiado usando las comparaciones entre flujos calculados y medidos y también usando imágenes de satélite. El footprint area puede ser definido como el área a una distancia desde la torre hacia donde sopla el viento donde las condiciones de la superficie influyen las medidas del flujo de alguna cantidad en la torre, y este footprint area está continuamente cambiando debido a su alta dependencia con la estratificación. Durante todo el periodo la estratificación estuvo cambiando desde ligeramente estable a ligeramente inestable, y por ello la heterogeneidad de la superficie puede ser vista en la variabilidad de los flujos medidos a diferentes alturas. Una conclusión importante en este estudio es que los cálculos de los flujos usando formulaciones podrían no ser útiles cuando se espera una alta variabilidad de los diferentes parámetros (temperatura superficial del mar y pCO2w), como por ejemplo durante situaciones de afloramiento y también cerca de costa, donde el fitoplancton puede influenciar significativamente la concentración de CO2 en la superficie. Se presenta un amplio estudio, incluyendo parámetros meteorológicos y oceanográficos, comparaciones de flujos, relaciones con parámetros, coeficientes de transferencia, dependencias con la estratificación e imágenes de satélite.
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Ho, Clara Wing-chung, and 何劉詠聰. "A study of the concepts of women's "talent" and "virtue" during the early and high Qing periods =." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1987. http://hub.hku.hk/bib/B44569580.

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Fattahi, Sadegh, and Philip Månsson. "Computational and experimental study of fuel leakage through a ventilation valve during various driving conditions." Thesis, Linköpings universitet, Mekanisk värmeteori och strömningslära, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-159194.

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Fuel leakage through a fill limit vent valve (FLVV) inside a fuel tank is an important factor to consider during the design of a new tank. The performance of the carbon canister which absorbs the hydrocarbon can be compromised if fuel manages to escape through the valve, so called Liquid Carry Over (LCO) and thus not fulfilling the fuel emission requirements. As of today this is not thoroughly investigated using experiments nor Computational Fluid Dynamics. The main focus of this study was to develop a method to simulate the behaviour of the FLVV during various driving conditions at an early design stage and if this gives rise to fuel escaping through the FLVV. This method was later to be validated with an experimental set-up and later used to perform some simulations to investigate LCO by varying different parameters such as fuel level and different types of driving. What happens when the canister is purging was also investigated to see if it has a pronounced effect on LCO. Purging is when hydrocarbons, absorbed by the canister, are sent to the engine and giving rise to an under pressure in the tank.The method was developed to run on a cluster utilizing 200 Central Processing Unit Cores where each simulated physical second required an average of 3 hours of simulation time.The flow inside the tank was simulated using a Volume Of Fluid (VOF) multiphase model and the dynamic behaviour of the floater inside the FLVV was simulated using an overset mesh with a Dynamic Fluid Body Interaction.The movement of the simulated dynamic floater was validated with an experimental set-up specifically developed for the overset mesh validation and the motion of the floater was captured at a fairly accurate level.A prototype for an experimental tank was also developed and produced to validate the VOF set-up used for sloshing inside the tank which was utilized on the real tank but due to time limitation the experiments were not performed. The results from the parameter investigation showed that LCO was present in cases with high fuel level inside the tank 95 % and that an aggressive driving gives rise to a higher level of LCO compared to normal driving. Simulations with a fuel level of 85 % and lower showed no evidence of LCO for this particular tank model. The purging of the tank induced a pumping effect giving rise to a higher level of LCO pumped through by the floater.
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Kirby, Mark Samuel. "An experimental and theoretical study of the ice accretion process during artificial and natural icing conditions." Thesis, Massachusetts Institute of Technology, 1986. http://hdl.handle.net/1721.1/17199.

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Thesis (M.S.)--Massachusetts Institute of Technology. Dept. of Aeronautics and Astronautics, 1986.
MICROFICHE COPY AVAILABLE IN ARCHIVES AND AERO.
Bibliography: leaves 128-129.
by Mark Samuel Kirby.
M.S.
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Wilson, A. F. "Electrostatic field conditions arising during the pumping of charged liquids into plastic tanks : An experimental and computational study." Thesis, University of Aberdeen, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.372608.

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Peraza, Ávila Jesús Enrique. "Experimental study of the diesel spray behavior during the jet-wall interaction at high pressure and high temperature conditions." Doctoral thesis, Universitat Politècnica de València, 2020. http://hdl.handle.net/10251/149389.

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[EN] The potential of diesel engines in terms of robustness, efficiency and energy density has made them widely used as power generators and propulsion systems. Specifically, fuel atomization, vaporization and air-fuel mixing, have a fundamental effect on the combustion process, and consequently, a direct impact on pollutant formation, fuel consumption and noise emission. Since the combustion chamber has a limited space respect to the spray penetration, wall impingement is considered to be a common event in direct injection diesel engines, having a relevant influence in the spray evolution and its interaction with both surrounding air and solid walls. This makes of spray-wall interaction an important factor for the combustion process that is still hardly understood. At cold-start conditions, the low in-chamber pressures and temperatures promote the deposition of fuel in the piston wall, which leads to a boost in the formation of unburned hydrocarbons. Additionally, modern design trends such as the increment of rail pressures in injection systems and the progressive reduction of the engine displacement, favor the emergence of spray collision onto the walls. In spite of the evident relevance of the comprehension of this phenomenon and the efforts of engine researchers to reach it, the transient nature of injection process, its small time scales and the complexity of the physical phenomena that take place in the vicinity of the wall, make challenging the direct observation of this spray-wall interaction. Even though computational tools have proven to be priceless in this field of study, the need for reliable experimental data for the development of those predictive models is present. This thesis is aimed to shed light on the fundamental characteristics of spray-wall interaction (SWI) at diesel-like chamber conditions. A flat wall was set at different impingement distances and angles respect to the spray. In this way, two different kinds of experimental investigations on colliding sprays were carried out: A transparent quartz wall was employed into the chamber to, in isolation, analyze the macroscopic characteristics of the spray at both evaporative inert and reactive conditions, which have been observed laterally and through the wall, thanks to the use of a high-pressure and high-temperature vessel with optical accesses. This same test rig was used in the second kind of experiments, where instead of the quartz plate, a stainless steel wall was used to capture the effect of the operating conditions on the heat flux between the wall and the spray during the injection-combustion events and to determine how spray and flame evolution are affected by realistic heat transfer situations. This wall was instrumented to control its initial in-chamber surface temperature and to measure its variation with time by using high-speed thermocouples. Tests at free-jet conditions were also performed in order to provide a solid comparative base for those experiments.
[ES] El potencial de los motores diesel en términos de robustez, eficiencia y la densidad de energía los ha hecho ser ampliamente usados como generadores de energía y sistemas propulsivos. Específicamente, la atomización de combustible, vaporización y mezcla de aire y combustible tienen un efecto fundamental en el proceso de combustión y, en consecuencia, un impacto directo en la formación de emisiones contaminantes, consumo de combustible y generación de ruido. Dado que la cámara de combustión tiene un espacio limitado con respecto la capacidad de penetración del chorro, el impacto de la pared se considera bastante común en motores de inyección directa diésel, que tienen una influencia relevante en la evolución del chorro y su interacción con el aire circundante y las paredes sólidas. Esto hace de interacción chorro-pared, un factor importante para el proceso de combustión que aún es dificilmente comprendido. En condiciones de arranque en frío, las bajas presiones y temperaturas en la cámara promueven la deposición de combustible en la pared del pistón, lo que conduce a un aumento en los niveles de formación de hidrocarburos no quemados. Además, las tendencias modernas de diseño como el incremento de las presiones de rail en los sistemas de inyección y la progresiva reducción en la cilindrada de los motores, favorecen la aparición de colisiones entre chorro y pared. A pesar de la evidente importancia en la comprensión de este fenómeno y los esfuerzos de los investigadores para alcanzarla, la transitoria naturaleza del proceso de inyección, sus pequeñas escalas de temporales y la complejidad de los fenómenos físicos que tienen lugar en las proximidades de la pared, hacen que la observación directa de esta interacción chorro-pared sea un desafío. Aunque las herramientas computacionales han demostrado ser invaluables en este campo de estudio, la necesidad de datos experimentales confiables para el desarrollo de esos modelos predictivos está muy presente. Esta tesis tiene como objetivo arrojar luz sobre las características fundamentales de la interacción chorro-pared (SWI por sus siglas en inglés) en condiciones de cámara similares a las de un motor diesel. Se colocó una pared plana a diferentes distancias de impacto y ángulos con respecto al jet. De esta manera, dos tipos diferentes de investigaciones experimentales sobre chorros en colisión se llevaron a cabo: se empleó una pared de cuarzo transparente en la cámara para, de forma aislada, analizar las características macroscópicas del chorro en condiciones evaporativas inertes y reactivas, que pueden observarse lateralmente y a través de la pared, gracias al uso de una instalación de alta presión y alta temperatura ópticamente accesible. Esta misma instalación se utilizó en el segundo tipo de experimentos en los que se introdujo una pared de acero inoxidable para capturar adicionalmente el efecto de las condiciones de operación en el flujo de calor entre ésta y el chorro durante los eventos de inyección y combustión y para determinar cómo la evolución del chorro y la llama son afectadas por una situación realista de transferencia de calor. Esta pared fue instrumentada para controlar la temperatura inicial de su superficie expuesta a la cámara y medir su variación con el tiempo, utilizando termopares de alta velocidad. Ensayos en condiciones de chorro libre también se realizaron para proporcionar una base comparativa sólida para esos experimentos.
[CA] El potencial dels motors dièsel en termes de robustesa, eficiència i la densitat d'energia els ha fet ser àmpliament usats com a generadors d'energia i sistemes propulsius. Específicament, l'atomització de combustible, vaporització i barreja d'aire i combustible tenen un efecte fonamental en el procés de combustió i, en conseqüència, un impacte directe en la formació d'emissions contaminants, consum de combustible i generació de soroll. Atès que la cambra de combustió té un espai limitat pel que fa la capacitat de penetració de l'raig, l'impacte de la paret es considera bastant comú en motors d'injecció directa dièsel, que tenen una influència rellevant en l'evolució del doll i la seva interacció amb el aire circumdant i les parets sòlides. Això fa d'interacció doll-paret, un factor important per al procés de combustió que encara és difícilment comprès. En condicions d'arrencada en fred, les baixes pressions i temperatures a la cambra promouen la deposició de combustible a la paret del pistó, el que condueix a un augment en els nivells de formació d'hidrocarburs no cremats. A més, les tendències modernes de disseny com l'increment de les pressions de rail en els sistemes d'injecció i la progressiva reducció en la cilindrada dels motors, afavoreixen l'aparició de col·lisions entre el doll i la paret. Tot i l'evident importància en la comprensió d'aquest fenomen i els esforços dels investigadors per aconseguir-la, la transitòria naturalesa de l'procés d'injecció, les seves petites escales de temporals i la complexitat dels fenòmens físics que tenen lloc en les proximitats de la paret , fan que l'observació directa d'aquesta interacció doll-paret siga un desafiament. Tot i que les eines computacionals han demostrat ser invaluables en aquest camp d'estudi, la necessitat de dades experimentals fiables per al desenvolupament d'aquests models predictius està molt present. Aquesta tesi té com a objectiu donar llum sobre les característiques fonamentals de la interacció doll-paret (SWI per les seues sigles en anglès) en condicions de cambra similars a les d'un motor dièsel. Es va col·locar una paret plana a diferents distàncies d'impacte i angles pel que fa al jet. D'aquesta manera, dos tipus diferents d'investigacions experimentals sobre dolls en col·lisió es van dur a terme: es va emprar una paret de quars transparent a la cambra per, de forma aïllada, analitzar les característiques macroscòpiques del doll en condicions evaporació inerts i reactives, que poden observar lateralment i a través de la paret, gràcies a l'ús d'una instal·lació d'alta pressió i alta temperatura òpticament accessible. Aquesta mateixa instal·lació es va utilitzar en el segon tipus d'experiments en els quals es va introduir una paret d'acer inoxidable per capturar addicionalment l'efecte de les condicions d'operació en el flux de calor entre aquesta i el dull durant els esdeveniments d'injecció i combustió i per determinar com l'evolució del doll i la flama són afectades per una situació realista de transferència de calor. Aquesta paret va ser instrumentada per controlar la temperatura inicial de la seua superfície exposada a la càmera i mesurar la seua variació amb el temps, utilitzant termoparells d'alta velocitat. Assajos en condicions de doll lliure també es van realitzar per proporcionar una base comparativa sòlida per a aquests experiments.
Peraza Ávila, JE. (2020). Experimental study of the diesel spray behavior during the jet-wall interaction at high pressure and high temperature conditions [Tesis doctoral no publicada]. Universitat Politècnica de València. https://doi.org/10.4995/Thesis/10251/149389
TESIS
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Hilmersson, Markus, and Erik Malmgren. "A Study to Examine During what Market Conditions it has been Profitable with Home Bias for a Swedish Fund Manager." Thesis, KTH, Matematisk statistik, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-229049.

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This thesis in applied statistics and industrial economics examines the correlation between a number of market conditions on the Swedish and Global market and the yield difference between the Swedish stock market and the Global stock market. The report is based on data from the index MSCI Sweden Net Return, MSCI World Net Return and the Volatility index S&P 500. The market conditions that have been examined are Bull markets, Bear markets, periods of high volatility. We also examined how the appreciation of the SEK in comparison to the USD and the yield of the Swedish stock market correlated with the yield difference between the Swedish Stock Market and the Global stock market. The correlation was examined using multiple linear regression. The results indicated a positive correlation between the yield difference between the Swedish stock market and the Global stock market and the yield of the Swedish stock market, the appreciation of the SEK compared to the USD and Bull markets. We found a negative correlation with Bear markets and no correlation at all with the volatility.   The results are in line with what could be expected and give a stronger statistical ground for the idea that the Swedish stock market has larger fluctuations than the Global stock market during large-scale market fluctuations.
Detta kandidatexamensarbete inom tillämpad matematik och industriell ekonomi syftar till att undersöka hur avkastningsdifferensen mellan den Svenska och Globala aktiemarknaden korrelerar med ett antal olika marknadsförhållanden. Rapporten är baserad på data från MSCI Sweden Net Return och MSCI World Net Return samt Volatilitetsindex S&P500. De marknadsförhållanden som har undersökts är Bull markets, Bear markets, perioder då det råder hög volatilitet på marknaden. Vi undersökte även avkastningsdifferensens korrelation till kronans värdeförändring gentemot den Amerikanska dollarn och korrelationen till den Svenska aktiemarknadens värdeökning. Korrelationen undersöktes genom att utföra en multipel linjär regression. Resultaten visade på en rådande positiv korrelation mellan utvecklingen på den Svenska aktiemarknaden, prisutvecklingen av den Svenska kronan mot Amerikanska dollarn samt under Bull markets. Vi fann även en negativ korrelation med Bear markets och ingen korrelation till volatiliteten.   Resultaten är i linje med vad som kunde förväntas och ger en starkare statistisk grund till att den Svenska aktiemarknaden har större svängningar än den Globala aktiemarknaden vid stora marknadsfluktuationer.
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Le, Chau Ho An. "Cross-border financial linkages and international financial contagion : an empirical study of East Asia during the 2007-2011 global financial crisis." Thesis, University of Birmingham, 2013. http://etheses.bham.ac.uk//id/eprint/4455/.

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Motivated by the global financial market turbulence in 2007-2011 and the gaps from the literature, this thesis presents an econometric assessment of different transmission mechanisms that propagated and amplified shocks from advanced economies to East Asia. The asset price channel is investigated with MS-VAR model and multivariate unconditional correlation tests. The recursive bivariate probit models are applied to test the liquidity shock transmission via the sudden stop in international lending. The second round effects are examined with partial adjustment models and system GMM estimation. The econometric procedure and testing approach bring about novel results from superior estimation techniques and handle several statistical problems such as heteroskedasticity, non-linearity, endogeneity, omitted variables, simultaneous equations and sample selection bias. The main finding of the thesis is that despite relatively sound fundamentals and limited exposure to structured credit products, East Asia could not totally decouple from the global financial crisis. Specifically, the asset price channels propagated volatility spillovers from the US and Europe to East Asian equity, foreign exchange and CDS markets. While international volatility spillovers were mainly caused by fundamental links, international behaviour during the shocks intensified the regional linkages and generated contagion effect. There was also contagion evidence associated with the sudden stop in international lending which facilitated the transmission of liquidity tensions in the interbank markets. Finally, contagion was magnified by the second round effects, defined as the feedback loops from the sudden changes in macro-financial conditions which caused adverse adjustment in bank performance. These findings have useful implications for international investors and policy authorities regarding to portfolio diversification and systematic risk containment.
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Tye, Angela Judith. "Conditional strategies to study gene function during gonadal development in mammals." Thesis, University College London (University of London), 2008. http://discovery.ucl.ac.uk/1445133/.

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Sexual development in mammals involves a complex cascade of genetic events. These begin with a cell fate decision, whether to make Sertoli or follicle cells, that gives rise to the development of a male or female gonad, which is controlled by the testis-determining gene Sry. Following the expression of Sry, genes involved in the male pathway act to reinforce and maintain testis-specific cell fate decisions, as well as to repress the female pathway. Sox9 becomes rapidly upregulated after the onset of Sry expression, and is expressed in Sertoli cells throughout life. From mutation studies, SOX9 is known to be essential for male development in humans and to initiate Sertoli cell differentiation in mice. However, the function of SOX9 after sex determination and the reason for its maintenance in Sertoli cells remains unknown. In order to understand the function of Sox9 in the fetal and adult mouse testis, new tools have been generated to control gene activity in a conditional manner. This thesis mainly describes strategies to control either deletion of misexpression of Sox9. To make the tools useful at different stages, the tamoxifen-inducible Cre/loxP system was employed. This involves the establishment of two elements: a "Cre-driver" and a ' Sox9-responder". Cre-driver transgenes were made under the control of several gonadal-specific regulatory elements, as well as a strong, ubiquitous promoter. Responder mice allow Cre activated conditional misexpression or deletion of Sox9. Analyses on gonad morphologies and gene expression levels were compared between animals that have altered Sox9 expression and those that have not. The results reveal that Sox9 is necessary and sufficient for the expression of Sfl in the Sertoli cells, and suggest that Sox9 is antagonistic to the ovarian- specific gene Foxl2. The newly established Cre-drivers can also be applied in functional studies involving other genes implicated in sexual development.
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Farough, Aida. "An experimental study on characterization of physical properties of ultramafic rocks and controls on evolution of fracture permeability during serpentinization at hydrothermal conditions." Diss., Virginia Tech, 2015. http://hdl.handle.net/10919/76669.

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Serpentinization is a complex set of hydration reactions, where olivine and pyroxene are replaced by serpentine, magnetite, brucite, talc and carbonate minerals. Serpentinization reactions alter chemical, mechanical, magnetic, seismic, and hydraulic properties of the crust. To understand the complicated nature of serpentinization and the linkages between physical and chemical changes during the reactions, I performed flow-through laboratory experiments on cylindrically cored samples of ultramafic rocks. Each core had a well-mated through-going tensile fracture, to investigate evolution of fracture permeability during serpentinization. The samples were tested in a triaxial loading machine at an effective pressure of 30 MPa, and temperature of 260°C, simulating a depth of 2 km under hydrostatic conditions. Fracture permeability decreased by one to two orders of magnitude during the 200 to 340 hour experiments. Electron microprobe and SEM data indicated the formation of needle-shaped crystals of serpentine composition along the walls of the fracture, and chemical analyses of sampled pore fluids were consistent with dissolution of ferro-magnesian minerals. The rate of transformation of olivine to serpentine in a tensile fracture is calculated using the data on evolution of fracture permeability assuming the fracture permeability could be represented by parallel plates. Assuming the dissolution and precipitation reactions occur simultaneously; the rate of transformation at the beginning of the experiments was ~ 10-8-10-9 (mol/m2s) and decreased monotonically by about an order of magnitude towards the end of the experiment. Results show that dissolution and precipitation is the main mechanism contributing to the reduction in fracture aperture. The experimental results suggest that the fracture network in long-lived hydrothermal circulation systems may be sealed rapidly as a result of mineral precipitation, and generation of new permeability resulting from a combination of tectonic and crystallization-induced stresses may be required to maintain fluid circulation. Another set of flow through experiments were performed on intact samples of ultramafic rocks at room temperature and effective pressures of 10, 20 and 30 MPa to estimate the pressure dependency of intact permeability. Porosity and density measurements were also performed with the purpose of characterizing these properties of ultramafic rocks. The pressure dependency of the coefficient of matrix permeability of the ultramafic rock samples fell in the range of 0.05-0.14 MPa-1. Using porosity and permeability measurements, the ratio of interconnected porosity to total porosity was estimated to be small and the permeability of the samples was dominantly controlled by microcracks. Using the density and porosity measurements, the degree of alteration of samples was estimated. Samples with high density and pressure dependent permeability had a smaller degree of alteration than those with lower density and pressure dependency.
Ph. D.
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Books on the topic "Conditions during the study"

1

Native American Fascism during the 1930s and 1940s: A study of its roots, its growth, and its decline. New York: Garland Pub., 1985.

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Bose, Manilal. Social history of Assam: Being a study of the origins of ethnic identity and social tension during the British period, 1905-1947. New Delhi: Concept Pub. Co., 1989.

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Canagarajah, Sudharshan. Employment, labor markets, and poverty in Ghana: A study of changes during economic decline and recovery. Washington, DC: World Bank, Africa Region, Human Development and Technical Family, 1997.

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Mai Weini, a highland village in Eritrea: A study of the people, their livelihood, and land tenure during times of turbulence. Lawrenceville, NJ: Red Sea Press, 1998.

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Song dai she hui zhong de wu xi yan jiu: A study of Chinese shamans during the two-Song dynasties period. Beijing Shi: Guang ming ri bao chu ban she, 2010.

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Sutton, Maureen. 'We didn't know aught': A study of sexuality, superstition and death in women's lives in Lincolnshire during the 1930s, '40s and '50s. Stamford: P. Watkins, 1992.

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Shaun, Tyas, ed. "We didn't know owt": A study of sexuality, superstition and death in women's lives in Lincolnshire during the 1930s, '40s and '50s. Donington, Lincolnshire: Shaun Tyas, 2012.

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An hui "shi er wu" fa zhan re dian qian zhan yan jiu: Prospective Study on the Development Hot Spot of Anhui Province during the "12th Five-Year" Period. Hefei Shi: Anhui ren min chu ban she, 2012.

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Thom, Ellen. A study of knowledge, aspects of attitudes and practices of women on risk factors and danger signs during pregnancy and delivery in Machinga District. [Lilongwe] Malawi: Health Research Unit, Ministry of Health and Population, 1997.

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Fukada, Yoshifumi. L2 Learning During Study Abroad. Singapore: Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-13-7546-0.

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Book chapters on the topic "Conditions during the study"

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Barszcz, Tomasz, Rafał Gawarkiewicz, Adam Jabłoński, Michał Sękal, and Michał Wasilczuk. "Knocking Sounds in the Wind Turbine Gearbox During Slowing Down—Case Study." In Applied Condition Monitoring, 235–44. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-61927-9_22.

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Wernig, A., H. Jans, and H. Zucker. "A Parametric Study of the Neuromuscular Junction During Ontogenesis and Under Different External Conditions." In Topics in the Neurosciences, 413–30. Boston, MA: Springer US, 1986. http://dx.doi.org/10.1007/978-1-4613-2307-5_26.

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Shumilina, Vera, and Irina Yunkina. "ANALYSIS OF THE IMPACT OF THE PANDEMIC ON BUSINESS DEVELOPMENT." In Business security management in modern conditions, 212–19. au: AUS PUBLISHERS, 2021. http://dx.doi.org/10.26526/chapter_60258635de9f86.69865062.

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The article analyzes the impact of COVID-19 coronavirus infection on the development of small and medium-sized businesses. Special attention is paid to the study of the main causes of bankruptcy of enterprises. An assessment of the decline in Russia's GDP during the beginning of the pandemic was made. The necessary measures to reduce the impact of the pandemic on business development are summarized.
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Tsuchiya, Toshio. "Numerical Study of Survival Condition of Subsystems During Cold Collapse." In Numerical Astrophysics, 79–80. Dordrecht: Springer Netherlands, 1999. http://dx.doi.org/10.1007/978-94-011-4780-4_27.

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Boucouvala, Dimitra, Robert Bornstein, Douglas Miller, and Jim Wilkinson. "MM5 Simulation of the Meteorological Conditions During a South Coast ozone study (SCOS’97) Episode." In Air Pollution Modeling and Its Application XIV, 683–90. Boston, MA: Springer US, 2004. http://dx.doi.org/10.1007/0-306-47460-3_69.

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Horvath, Kristian, and Ivica Vilibić. "Atmospheric mesoscale conditions during the Boothbay meteotsunami: a numerical sensitivity study using a high-resolution mesoscale model." In Meteorological Tsunamis: The U.S. East Coast and Other Coastal Regions, 55–74. Cham: Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-12712-5_4.

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Kantharaj, I., M. Sekar, X. Ajay Vasanth, and S. Mohanasundaram. "Comparative Study of Cutting Fluid Application Methods to Improve Machining Conditions During Surface Grinding on AISI 1040 Steel." In Lecture Notes in Mechanical Engineering, 71–79. Singapore: Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-13-1724-8_7.

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Dorosz, Agata, Paula Martínez Cánovas, and Arkadiusz Moskal. "Cascade Impactor Study of Aerosolization Process During Passive Dry Powder Inhaler Performance Under Unsteady Versus Steady Flow Conditions." In Practical Aspects of Chemical Engineering, 47–57. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-39867-5_6.

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Balogun, R. Ayodeji, E. Adesanya Adefisan, Z. Debo Adeyewa, and E. Chilekwu Okogbue. "Thermodynamic Environment During the 2009 Burkina Faso and 2012 Nigeria Flood Disasters: Case Study." In African Handbook of Climate Change Adaptation, 1705–20. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-45106-6_143.

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AbstractCritical or extreme atmospheric conditions which could result in flood disasters are important output for numerical weather forecast. This research applied thermodynamic variables to investigate the environment of two flood scenarios in West Africa as captured by the Tropical Rainfall Measurement Mission (TRMM) satellite. Results from the two case studies of flood events, in (i) Burkina Faso and (ii) Nigeria savannah, investigated in this research work, indicated that the September 1st 2009 flood, which was as a result of a single volumetric rainfall event of 408,070.60 ((mm/h)*km2) with 65% convective region in Burkina Faso, was initiated by interactions between extremely large lower tropospheric wind shear and cold pool dynamics. The case of the Nigeria savannah floods between July and September, 2012, was triggered by both continuous rainfall and release of water from the lagdo dam in Cameroon, which affected most of the communities in the river Benue axis. The continuous rainfalls were found to be as a result of extremely high convergence of moisture in the river Benue axis at different locations and periods. One of such rainfall events, as captured by TRMM satellite during September 29, 2012 in the Nigeria rainforest zone, indicated that the volumetric rainfall is 351,310.9 ((mm/h)*km2) with only 34% convective portion. From these results, it can be deduced that a combination of thermodynamic environmental variables, volume rainfall, and other satellite-derived convective parameters could provide important information for flood forecasting.
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Augustin, Goran. "Miscellaneous Conditions." In Acute Abdomen During Pregnancy, 505–39. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-72995-4_11.

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Conference papers on the topic "Conditions during the study"

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Kostoglou, Kyriaki, Chantel T. Debert, Marc J. Poulin, and Georgios D. Mitsis. "Nonstationary multivariate modeling of cerebral autoregulation during free-breathing and hypercapnic conditions." In 2014 8th Conference of the European Study Group on Cardiovascular Oscillations (ESGCO). IEEE, 2014. http://dx.doi.org/10.1109/esgco.2014.6847585.

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Sah, Shammy Kumar, Krishnan Murugesan, and Elagovan Rajasekar. "Study of peak load condition during indoor climate control for Roorkee weather conditions." In Proceedings of the 25th National and 3rd International ISHMT-ASTFE Heat and Mass Transfer Conference (IHMTC-2019). Connecticut: Begellhouse, 2019. http://dx.doi.org/10.1615/ihmtc-2019.1320.

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Afshari, Sajjad, Riyaz Kharrat, and Mohammad Hossein Ghazanfari. "Asphaltene Precipitation Study During Natural Depletion At Reservoir Conditions." In International Oil and Gas Conference and Exhibition in China. Society of Petroleum Engineers, 2010. http://dx.doi.org/10.2118/130071-ms.

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Leivo, Senja, and Eduardo Briosso. "A case study, Online DGA during varying transformer conditions." In 2020 IEEE Electrical Insulation Conference (EIC). IEEE, 2020. http://dx.doi.org/10.1109/eic47619.2020.9158665.

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Naterer, G., and G. Schneider. "Experimental study of dynamic and thermal conditions during binary dendritic solidification." In 30th Thermophysics Conference. Reston, Virigina: American Institute of Aeronautics and Astronautics, 1995. http://dx.doi.org/10.2514/6.1995-2064.

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Dolgova, Valentina, Elena Kapitanets, Marina Yashina, and Nadezhda Kryzhanovskaya. "Study on conditions of destructive mental state psychocorrection in language students during examinations." In Proceedings of the International Scientific-Practical Conference “Business Cooperation as a Resource of Sustainable Economic Development and Investment Attraction” (ISPCBC 2019). Paris, France: Atlantis Press, 2019. http://dx.doi.org/10.2991/ispcbc-19.2019.6.

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Javorka, Michal, Barbora Czippelova, Lenka Chladekova, Zuzana Turianikova, Zuzana Visnovcova, Zuzana Lazarova, and Ingrid Tonhajzerova. "Cardiovascular control during orthostatic and mental stress: Conditional entropy based analysis." In 2014 8th Conference of the European Study Group on Cardiovascular Oscillations (ESGCO). IEEE, 2014. http://dx.doi.org/10.1109/esgco.2014.6847495.

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Li, Yantao, and Dexin Liu. "Study on the HC Emissions during Cold-Start Conditions of Gasoline Direct Injection Engine." In 2011 International Conference on Intelligent Computation Technology and Automation (ICICTA). IEEE, 2011. http://dx.doi.org/10.1109/icicta.2011.606.

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Bertier, Astrid, Emeline Fresnel, Adrien Kerfourn, Antoine Cuvelier, and Maxime Patout. "Bench study evaluation of ventilator behavior with different humidification conditions during noninvasive home ventilation." In ERS International Congress 2019 abstracts. European Respiratory Society, 2019. http://dx.doi.org/10.1183/13993003.congress-2019.pa3701.

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Mendoza, Jocelyn V., and Eduardo A. Orduna. "Comparative study of digital filtering algorithms for the application of relays during fault conditions." In 2017 IEEE 37th Central America and Panama Convention (CONCAPAN XXXVII). IEEE, 2017. http://dx.doi.org/10.1109/concapan.2017.8278481.

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Reports on the topic "Conditions during the study"

1

Hassan, Yassin. Study of Air Ingress Across the Duct During the Accident Conditions. Office of Scientific and Technical Information (OSTI), May 2013. http://dx.doi.org/10.2172/1097001.

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Hodgin, C. R. Meteorological conditions during the winter validation study at Rocky Flats, Colorado: An overview. Office of Scientific and Technical Information (OSTI), November 1991. http://dx.doi.org/10.2172/5037232.

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Ji, Yi, Bob McCullouch, and Zhi Zhou. Evaluation of Anti-Icing/De-Icing Products Under Controlled Environmental Conditions. Purdue University, 2020. http://dx.doi.org/10.5703/1288284317253.

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Snow and ice removal are important tasks during the winter season and large amounts of anti-icing and de-icing chemicals are used and there is a critical need to review and synthesize information from the literature to compare and contrast anti-icing and de-icing chemicals to understand their environmental impact and support decision making. The effectiveness, costs, and environmental impact of commonly used and alternative anti-icing and de-icing chemicals were reviewed in this study. Application of anti-icing and de-icing chemicals may increase ion concentrations in soils and change nitrogen cycle, soil pH, and trace metal concentrations, affect surface water and groundwater, and increase public health risks. Life cycle assessment was conducted to quantitively evaluate environmental impact of selected anti-icing and de-icing chemicals. A decision support tool on environmental impact was developed to evaluate environmental impact of anti-icing and de-icing chemicals in ten different environmental impact categories. The results showed the environmental life cycle assessment tool developed in this study can be used to compare multiple environment impacts to support decision making for winter operation chemicals.
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Downing, W. Logan, Howell Li, William T. Morgan, Cassandra McKee, and Darcy M. Bullock. Using Probe Data Analytics for Assessing Freeway Speed Reductions during Rain Events. Purdue University, 2021. http://dx.doi.org/10.5703/1288284317350.

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Rain impacts roadways such as wet pavement, standing water, decreased visibility, and wind gusts and can lead to hazardous driving conditions. This study investigates the use of high fidelity Doppler data at 1 km spatial and 2-minute temporal resolution in combination with commercial probe speed data on freeways. Segment-based space-mean speeds were used and drops in speeds during rainfall events of 5.5 mm/hour or greater over a one-month period on a section of four to six-lane interstate were assessed. Speed reductions were evaluated as a time series over a 1-hour window with the rain data. Three interpolation methods for estimating rainfall rates were tested and seven metrics were developed for the analysis. The study found sharp drops in speed of more than 40 mph occurred at estimated rainfall rates of 30 mm/hour or greater, but the drops did not become more severe beyond this threshold. The average time of first detected rainfall to impacting speeds was 17 minutes. The bilinear method detected the greatest number of events during the 1-month period, with the most conservative rate of predicted rainfall. The range of rainfall intensities were estimated between 7.5 to 106 mm/hour for the 39 events. This range was much greater than the heavy rainfall categorization at 16 mm/hour in previous studies reported in the literature. The bilinear interpolation method for Doppler data is recommended because it detected the greatest number of events and had the longest rain duration and lowest estimated maximum rainfall out of three methods tested, suggesting the method balanced awareness of the weather conditions around the roadway with isolated, localized rain intensities.
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Bell, Gary, and Duncan Bryant. Red River Structure physical model study : bulkhead testing. Engineer Research and Development Center (U.S.), June 2021. http://dx.doi.org/10.21079/11681/40970.

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The US Army Corps of Engineers, St. Paul District, and its non-federal sponsors are designing and constructing a flood risk management project that will reduce the risk of flooding in the Fargo-Moorhead metropolitan area. There is a 30-mile long diversion channel around the west side of the city of Fargo, as well as a staging area that will be formed upstream of a 20-mile long dam (referred to as the Southern Embankment) that collectively includes an earthen embankment with three gated structures: the Diversion Inlet Structure, the Wild Rice River Structure, and the Red River Structure (RRS). A physical model has been constructed and analyzed to assess the hydraulic conditions near and at the RRS for verification of the structure’s flow capacity as well as optimization of design features for the structure. This report describes the modeling techniques and instrumentation used in the investigation and details the evaluation of the forces exerted on the proposed bulkheads during emergency operations for the RRS.
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DiGrande, Laura, Christine Bevc, Jessica Williams, Lisa Carley-Baxter, Craig Lewis-Owen, and Suzanne Triplett. Pilot Study on the Experiences of Hurricane Shelter Evacuees. RTI Press, September 2019. http://dx.doi.org/10.3768/rtipress.2019.rr.0035.1909.

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Community members who evacuate to shelters may represent the most socially and economically vulnerable group within a hurricane’s affected geographic area. Disaster research has established associations between socioeconomic conditions and adverse effects, but data are overwhelmingly collected retrospectively on large populations and lack further explication. As Hurricane Florence approached North Carolina in September 2018, RTI International developed a pilot survey for American Red Cross evacuation shelter clients. Two instruments, an interviewer-led paper questionnaire and a short message service (SMS text) questionnaire, were tested. A total of 200 evacuees completed the paper survey, but only 34 participated in the SMS text portion of the study. Data confirmed that the sample represented very marginalized coastline residents: 60 percent were unemployed, 70 percent had no family or friends to stay with during evacuation, 65 percent could not afford to evacuate to another location, 36 percent needed medicine/medical care, and 11 percent were homeless. Although 19 percent of participants had a history of evacuating for prior hurricanes/disasters and 14 percent had previously utilized shelters, we observed few associations between previous experiences and current evacuation resources, behaviors, or opinions about safety. This study demonstrates that, for vulnerable populations exposed to storms of increasing intensity and frequency, traditional survey research methods are best employed to learn about their experiences and needs.
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Nishimura, Masatsugu, Yoshitaka Tezuka, Enrico Picotti, Mattia Bruschetta, Francesco Ambrogi, and Toru Yoshii. Study of Rider Model for Motorcycle Racing Simulation. SAE International, January 2020. http://dx.doi.org/10.4271/2019-32-0572.

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Various rider models have been proposed that provide control inputs for the simulation of motorcycle dynamics. However, those models are mostly used to simulate production motorcycles, so they assume that all motions are in the linear region such as those in a constant radius turn. As such, their performance is insufficient for simulating racing motorcycles that experience quick acceleration and braking. Therefore, this study proposes a new rider model for racing simulation that incorporates Nonlinear Model Predictive Control. In developing this model, it was built on the premise that it can cope with running conditions that lose contact with the front wheels or rear wheels so-called "endo" and "wheelie", which often occur during running with large acceleration or deceleration assuming a race. For the control inputs to the vehicle, we incorporated the lateral shift of the rider's center of gravity in addition to the normally used inputs such as the steering angle, throttle position, and braking force. We compared the performance of the new model with that of the conventional model under constant radius cornering and straight braking, as well as complex braking and acceleration in a single (hairpin) corner that represented a racing run. The results showed that the new rider model outperformed the conventional model, especially in the wider range of running speed usable for a simulation. In addition, we compared the simulation results for complex braking and acceleration in a single hairpin corner produced by the new model with data from an actual race and verified that the new model was able to accurately simulate the run of actual MotoGP riders.
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Forbes, Jeffrey M. Thermosphere Structure Variations during High Solar and Magnetic Activity Conditions. Fort Belvoir, VA: Defense Technical Information Center, September 1985. http://dx.doi.org/10.21236/ada171350.

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Afanasjev, Anatoli. Nuclei at extreme conditions. A relativistic study. Office of Scientific and Technical Information (OSTI), November 2014. http://dx.doi.org/10.2172/1236172.

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Hayden, Peter R. Setting the Conditions for the Rule of Law During Military Interventions. Fort Belvoir, VA: Defense Technical Information Center, May 2008. http://dx.doi.org/10.21236/ada484274.

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