Dissertations / Theses on the topic 'IRJ performance'
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Pang, Tao, and tony_pang@hotmail com. "Studies on Wheel/Rail Contact Impact Forces at Insulated Rail Joints." Central Queensland University. Centre for Railway Engineering, 2008. http://library-resources.cqu.edu.au./thesis/adt-QCQU/public/adt-QCQU20080410.154708.
Full textWang, Hao. "Road Profiler Performance Evaluation and Accuracy Criteria Analysis." Thesis, Virginia Tech, 2006. http://hdl.handle.net/10919/34419.
Full textMaster of Science
Patsias, Kyriakos. "A HIGH PERFORMANCE GIBBS-SAMPLING ALGORITHM FOR ITEM RESPONSE THEORY MODELS." Available to subscribers only, 2009. http://proquest.umi.com/pqdweb?did=1796121011&sid=3&Fmt=2&clientId=1509&RQT=309&VName=PQD.
Full textHouts, Carrie Rena. "The Performance of Local Dependence Indices with Psychological Data." The Ohio State University, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=osu1322364626.
Full textFang, Yi-chin. "Performance evaluation of discrete IR optical system." Thesis, University of Reading, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.270211.
Full textJohansson, Fredrik. "Rosetta Langmuir probe performance." Thesis, Uppsala universitet, Institutionen för fysik och astronomi, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-213146.
Full textPessuto, Kelen. "O 'espelho mágico ' do cinema iraniano = uma análise das performances dos "não" atores nos filmes de arte." [s.n.], 2011. http://repositorio.unicamp.br/jspui/handle/REPOSIP/284435.
Full textDissertação (mestrado) - Universidade Estadual de Campinas, Instituto de Artes
Made available in DSpace on 2018-08-19T05:09:01Z (GMT). No. of bitstreams: 1 Pessuto_Kelen_M.pdf: 3175741 bytes, checksum: 12122eeb3b192b833dfc0faebb26d576 (MD5) Previous issue date: 2011
Resumo: Esta dissertação analisa as performances dos "não" atores no cinema de arte iraniano, a partir das obras Close-up (Nema-ye Nazdik, 1990, Abbas Kiarostami), Salve o cinema (Salam cinema, 1995, Mohsen Makhmalbaf), Tartarugas podem voar (Lakposhtha parvaz mikonand, 2004, Bahman Ghobadi) e O espelho (Ayneh, 1997, Jafar Panahi). Com base na antropologia da performance, busca-se responder às seguintes perguntas: Quem são os "não" atores? Por que são usados esse tipo de ator em vez de atores profissionais? Quais os métodos empregados em sua direção? Qual a relação que se estabelece entre o ator e o personagem? Para tanto, utiliza-se além da bibliografia pertinente a essa disciplina, ao teatro e ao cinema, o método comparativo, com filmes do mesmo diretor, assim como de outras cinematografias. Conclui-se que não há necessidade do ator ter uma técnica préestabelecida, sendo que a direção proposta por esses cineastas requer o mínimo de atuação. O ator-performer vivencia as situações que lhes são impostas e, a partir disso, cria personagens, algumas vezes baseados em sua própria experiência de vida, como em uma grande brincadeira de faz de conta
Abstract: This thesis analyzes the performance of the "non" actors in the Iranian art cinema, in movies Close-up (Nema-ye Nazdik, 1990, Abbas Kiarostami), Salam cinema (1995, Mohsen Makhmalbaf), Turtles can fly (Lakposhtha parvaz mikonand, 2004, Bahman Ghobadi) and The Mirror (Ayneh, 1997, Jafar Panahi). Based on the anthropology of performance, we seek to answer the following questions: Who are these "non" actors? Why they used that kind of actor instead of professional actors? What are the methods employed in its direction? and What is the relationship established between the actor and character? For this, we use the comparative method, with films from these directors, as well movies by other cinematographies. The conclusion reached is that there is no need for the actor to have a pre-established technique, because the direction proposed by these filmmakers requires minimal action. The actor-performer experience situations that are imposed for them and they create characters, sometimes based on their own experience of life, as in a grand game of make-believe
Mestrado
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Mestre em Artes
Vairaitė, Rūta. "Duomenų filtravimo ir atrankos sprendimų analizė." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2008. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2008~D_20080710_114048-38741.
Full textWhen the amount of stored data is growing, it is very important to get them fast and users are expecting to see how database performance is rising. Using database performance tuning, or database performance optimization, it is possible to make a database system run faster. In this paper after analysis of database performance optimization and performance tuning methods was suggested a method which enables to process data from database more quick and to user to get query result faster. To perform the research the MS SQL Server Database Management System was chosen. The experiment was performed in order to evaluate how method works. The experiment results show that compared with views, this method has better query performance.
Strang, Steven J. (Steven James) Carleton University Dissertation Anthropology. "O'Neill's Cavalcade: the nature and functions of Provisional IRA terrorist performances." Ottawa, 1992.
Find full textAgbele, Kehinde Kayode. "Context-awareness for adaptive information retrieval systems." Thesis, University of the Western Cape, 2014. http://hdl.handle.net/11394/3845.
Full textThis research study investigates optimization of IRS to individual information needs in order of relevance. The research addressed development of algorithms that optimize the ranking of documents retrieved from IRS. In this thesis, we present two aspects of context-awareness in IR. Firstly, the design of context of information. The context of a query determines retrieved information relevance. Thus, executing the same query in diverse contexts often leads to diverse result rankings. Secondly, the relevant context aspects should be incorporated in a way that supports the knowledge domain representing users’ interests. In this thesis, the use of evolutionary algorithms is incorporated to improve the effectiveness of IRS. A context-based information retrieval system is developed whose retrieval effectiveness is evaluated using precision and recall metrics. The results demonstrate how to use attributes from user interaction behaviour to improve the IR effectiveness
Elshukri, Fathi A. "An experimental investigation and improvement of insulated rail joints (IRJs) end post performance." Thesis, University of Sheffield, 2016. http://etheses.whiterose.ac.uk/12066/.
Full textBorisas, Marius. "Jauno amžiaus vyrų ir moterų funkcinių judesių atlikimo stereotipo ir fizinio pajėgumo įvertinimas." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2014. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2014~D_20140122_140259-67563.
Full textM. Borisas. Young man and woomen Functional Movement Screen and Physical Performance evaluation, master thesis/ supervisor doc. dr. L. Šiupšinskas; Lithuanian University of health sciences; Academy of medicine, Faculty of nursing, Institute of Sport. – Kaunas, 2013. p. 70. The aim of the study: evaluate young man and women group’s indicators of Functional Movement Screen and Physical Performance and the correlations. Goals of this research: 1. Evaluate and compare young men and women Functional Movements Screen. 2. Evaluate and compare Physical Performance in young age men and women groups. 3. To evaluate and compare the young men's and the women's Functional Movement Screenand physical performance indicators interfaces. The study was conducted Lithuanian University of Health Sciences, Medical Academy of Nursing, Faculty of Sports Institute. The study included 102 subjects (52 men and 50 women). A group of men 52, women 50 persons in the group. Mean age 21.9 ± 2.8 years (± SEM, standard error of the mean estimate). Average body mass index 22.7 ± 1.9 kg/m². Participants performed Functional Movement Screen, Eurofit test batteries. Research carried out by performing functional movement screen assessment tests in the following order: a deep squat, hurdle step, in line lunge, shoulder mobility, active straight leg rise, trunk stability push-up, rotary stability tests. Resting for 10 minutes on the same day of the study subjects performed Eurofit tests: flamingo, plate teping... [to full text]
King, Rachel Throop. "Using MM-IRT-C to Explore the Relationship between Depression and Pre-employment Tests." Bowling Green State University / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1490210265946655.
Full textKlofas, Jeffrey M. "Hedge Funds and Financial Crises: 2007 - 2009 Performance Characteristics." Thesis, Boston College, 2016. http://hdl.handle.net/2345/bc-ir:106755.
Full textWe study historical hedge fund performance characteristics with a particular focus on the 2007 – 2009 Financial Crisis (the “Crisis”). Using the Credit Suisse Hedge Fund Indexes as proxies for broader hedge fund industry performance, we apply a factor model based on common investment strategies to determine if the broad industry or any particular hedge fund strategies have been able to deliver excess returns, or alpha. We find evidence that the broad hedge fund index did deliver statistically significant excess monthly returns of 0.39% (4.67% annualized) over the period January 1995 – January 2016, with seven of ten individual strategy indexes contributing. However, our results indicate that these excess returns were delivered primarily during the pre-Crisis period of January 1995 – November 2007. Over this period, the broad index delivered statistically significant monthly excess returns of 0.49% (5.93% annualized), with six of ten individual strategy indexes contributing. Our results do not indicate, however, that hedge funds delivered statistically significant monthly excess returns over the period December 2007 – June 2009 or over the period December 2007 – December 2012, which takes into account the uniquely drawn out recovery from the Crisis. We find that the broad index delivered statistically significant excess monthly returns of 0.23% (2.74% annualized) during the post-Crisis period, though these returns are less than half of the pre-Crisis period returns and only three individual strategy indexes contributed. We posit that this apparent shift in performance characteristics might be the result of a shift in the risk tolerances of hedge fund investors and managers following the Crisis. We conclude that, while hedge funds might certainly serve legitimate purposes in financial markets, they are not immune to financial crises, especially those as severe as the Crisis
Thesis (BA) — Boston College, 2016
Submitted to: Boston College. College of Arts and Sciences
Discipline: Arts and Sciences Honors Program
Discipline: Economics
Gaubas, Paulius. "Organizacinis teisingumas darbo atlikimo vertinime ir jo sąsajos su nuostatomis darbo atžvilgiu." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2014. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2009~D_20140626_194730-80771.
Full textWhile exploring organizational justice phenomenon, we limited our scope to specific area of work relationship and decision making – performance evaluation. We used past research notion from literature that performance appraisal (PA) fairness is related to PA system effectiveness and various organizational outcomes such as work attitudes. The main part our attention was focused on the relationship of PA process variables and PA fairness. We explored relationship of PA fairness and two work related attitudes – job satisfaction and intention to turnover. We distributed our questionnaire to 117 employed Lithuanian persons, whose performance appraisal is evaluated and discussed with manager at least once a year. 88 percent of subjects were woman, mostly with university degree. In our research we were looking for the answer, which PA process variables (PA system, PA session, non-session) are related to PA fairness. Results indicated, that majority of variables (11 out of 13) were significantly correlated with PA fairness (correlation ranging from 0.33 to 0.76). System complexity and multiple inputs of management in PA items were not correlated with PA fairness. This data is opposite to (Giles et al., 1997) findings for US sample. PA fairness can be predicted by 3 variables, accounting for 77% variance. These variables are session participation, session unpleasantness and performance-rating linkage. Firs two items we prescribed interactional justice emanating from manager, and the... [to full text]
Norušaitienė, Ieva. "Veiklos pamatavimo metodų taikymas Kauno ir Klaipėdos miestų savivaldybėse." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2008. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2007~D_20080201_101235-56007.
Full textEveryone state institution does particular performance, in order it would implement it’s functions. There is possible to separate results in all phases of institution performance, which possible to measure and is possible to account for it. Though is hard to measure several results of institution, but if you want to guarantee the efficiency of institution performance, measurement is unavoidable. Though the solutions of institutions, the results of projects and programmes always were measured and analyzed, but still performance measurement methods are developed rather low. So theme of the study „Performance Measurement Methods Use in Local Authorities of Kaunas and Klaipeda“ is very actually, because performance measurement show us, how organization is working. If we do not measure performance, we can not identify, how organization works, and we can not control it and improve it performance. With a view to examine theme „Performance Measurement Methods in Local Authorities of Kaunas and Klaipeda“ we defined the main idea of the study – to detect the point of performance measurement and to identify performance measurement methods, which are used in concrete institution. In order to realize this idea of the study, it is necessary these goals: • To explore, what is the point of performance measurement. • To detect meaning of benchmarking, in order to improve the quality of performance. • To define, what performance measurement methods are applied in concrete institution. In... [to full text]
Curry, Brendan. "Mic Drop: The Volatility of Employment and Income for Professional Musicians Before and During the COVID-19 Pandemic." Thesis, Boston College, 2021. http://hdl.handle.net/2345/bc-ir:109163.
Full textThis paper finds that musicians have more variable work schedules than comparable gig occupations and they are typically more disadvantaged in finding suitable employment opportunities. They are more likely to be self-employed and face the challenges that come with that status, and typically have less financial freedom. They also often work part-time due to the nature of the profession or take on multiple jobs to financially sustain themselves and their families financially. The pandemic has caused already-low hours for musicians to decrease further, still not fully recovering due to all live events being canceled, without the same ability to work remotely as similar gig occupations. These economic detriments have been accumulating for years as a result of the unstable music industry and the effects have multiplied after the COVID-19 pandemic, leaving musicians searching for a way forward within a broken system
Thesis (BA) — Boston College, 2021
Submitted to: Boston College. College of Arts and Sciences
Discipline: Departmental Honors
Discipline: Economics
Cato, Hampus. "Correlation Between 3000-meter Running Performance, Yo-Yo IR1 & Submaximal Treadmill Jogging Test." Thesis, Högskolan i Halmstad, Bio- och miljösystemforskning (BLESS), 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-31875.
Full textRalph, Gary M. "Characterization of the radiometric performance of an IR scene projector /." Online version of thesis, 1994. http://hdl.handle.net/1850/11973.
Full textDarmon, Céline. "Réactivité visuo-manuelle, contrôle du geste et expertise motrice : étude en IRM fonctionnelle événementielle." Université Joseph Fourier (Grenoble), 2006. http://www.theses.fr/2006GRE10097.
Full textThis study aims to identify the neural network involved in the intentional visuo-manual control and to explore behavioural and functional effects of a long term practice of sports, as fencing. The double step paradigm adapted to event-related fMRI study shows that intentional trajectory corrections conduct to an over-activation of the cerebral network underlying visuo-manual control (including occipital visual areas, parietal areas, frontal motor, premotor and oculomotor areas, thalamus, basal ganglia and the cerebellum). Fencers' visuomanual performances rely more on the associative and executive cerebral areas while control subjects' performances recruit more the visual areas. The visuomanual control relies on neural loop underlying operational modules gradually recruited related to the behavioural and environmental constraints. Sensorimotor expertise related to practice of sport can conduct to modify cerebral functional map
Cheng, Qingmei. "Materials Design toward High Performance Electrodes for Advanced Energy Storage Applications." Thesis, Boston College, 2018. http://hdl.handle.net/2345/bc-ir:108116.
Full textRechargeable batteries, especially lithium ion batteries, have greatly transformed mobile electronic devices nowadays. Due to the ever-depletion of fossil fuel and the need to reduce CO2 emissions, the development of batteries needs to extend the success in small electronic devices to other fields such as electric vehicles and large-scale renewable energy storage. Li-ion batteries, however, even when fully developed, may not meet the requirements for future electric vehicles and grid-scale energy storage due to the inherent limitations related with intercalation chemistry. As such, alternative battery systems should be developed in order to meet these important future applications. This dissertation presents our successes in improving Li-O2 battery performance for electric vehicle application and integrating a redox flow battery into a photoelectrochemical cell for direct solar energy storage application. Li-O2 batteries have attracted much attention in recent years for electric vehicle application since it offers much higher gravimetric energy density than Li-ion ones. However, the development of this technology has been greatly hindered by the poor cycling performance. The key reason is the instability of carbon cathode under operation conditions. Our strategy is to protect the carbon cathode from reactive intermediates by a thin uniform layer grown by atomic layer depostion. The protected electrode significantly minimized parasitic reactions and enhanced cycling performance. Furthermore, the well-defined pore structures in our carbon electrode also enabled the fundamental studies of cathode reactions. Redox flow batteries (RFB), on the other hand, are well-suited for large-scale stationary energy storage in general, and for intermittent, renewable energy storage in particular. The efficient capture, storage and dispatch of renewable solar energy are major challenges to expand solar energy utilization. Solar rechargeable redox flow batteries (SRFBs) offer a highly promising solution by directly converting and storing solar energy in a RFB with the integration of a photoelectrochemical cell. One major challenge in this field is the low cell open-circuit potential, mainly due to the insufficient photovoltages of the photoelectrode systems. By combining two highly efficient photoelectrodes, Ta3N5 and Si (coated with GaN), we show that a high-voltage SRFB could be unassistedly photocharged and discharged with a high solar-to-chemical efficiency
Thesis (PhD) — Boston College, 2018
Submitted to: Boston College. Graduate School of Arts and Sciences
Discipline: Chemistry
Keblytė, Roberta. "Į veiklos audito specialistų veiklą nukreipta kompetencija, jos turinys ir pripažinimas Europos aukščiausiose audito institucijose." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2013. http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2013~D_20130625_180350-89842.
Full textThe goal of master’s thesis is to analyse performance audit specialists competence, its content which is pointed to their activity, appreciation by Europe’s SAI and evaluate Europe’s SAI representatives attitude towards the possibility to certificate the performance audit specialists. In the first part of master’s thesis performance audit conception, its place and significance in the audit system, Europe’s SAI evolution of performance audit and fundamental performance audit features are revealed. In the second part of master’s thesis author unclosed the conception of performance audit specialists, competence and strategic individual competence development methods. In the third part of master’s thesis it is determined the performance audit specialists competence elements of content: personal features, knowledge, skills, background, work experience, audit work experience, auditor’s education. In the fourth part of master’s thesis the author evaluated performance audit specialists elements of competence and compared appreciation of these competence elements by different Europe’s SAI, defined Europe’s SAI attitudes towards the possibility to certificate performance audit specialists.
Norkus, Virgilijus. "Grojimo variniais pučiamaisiais instrumentais specifika ir pagrindiniai principai." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2014. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2014~D_20140603_152927-89961.
Full textThis masters thesis is focused on specifics and main principles of playing brass instruments. Brass instruments are different from other instrument groups mainly because the main thing that is responsible for the generation of sound is not an instrument itself, but the body of the player - coordinated action of different organs of the player. This means that successful playing is inevitably dependant on the condition an preparedness of 'playing apparatus' of the player - facial, tongue, neck muscles, breathing organs, fingers etc. The aim of the thesis is to identify the main groups of body organs needed to successfully play brass, and to find out how they should be trained to prepare universal and professional brass player. In order to reach the aim, a research of brass teaching literature an other theoretical material, was conducted. Research shows that the main parts of 'playing apparatus' are: correct breathing, embouchure, tongue articulation and actions of the hand and fingers of the player. This thesis contains different training exercises. This thesis also concludes that in order to be successful the player must be subjected to daily training and practicing. The thesis also contains examples of such daily training.
Petkov, Ivan. "Essays on Local Determinants of Economic Growth." Thesis, Boston College, 2016. http://hdl.handle.net/2345/bc-ir:106789.
Full textThe fundamental concept unifying this thesis is that outcomes at small geographical units can shed light on key economic questions of interest for both macroeconomics and finance. Some of the questions I explore in my work include whether bank networks facilitate access to financial capital by small businesses in the US, whether lending to small businesses is important for short-term economic growth, and whether different cultural and institutional endowments improve economic outcomes in the long run.\\ Small Business Lending and the Bank-Branch Network: In this chapter, I examine the role of banks in propagating local economic shocks from one area to another through their network of bank branches, by exploiting a newly developed branch-level dataset. Specifically, I examine the change in the geographical distribution of small business loans within each bank network in response to: 1) increases in deposit growth due to presence in areas with new fracking wells; 2) changes in the profitability of real estate loans due to presence in areas experiencing real estate booms. I evaluate how the supply-driven changes in lending following these shocks impact real economic activity. I find that banks export the increase in liquidity from the fracking areas and fund more small business loans at other, more distant branches. Borrowers from banks with a higher exposure to fracking experience faster establishment growth at areas beyond 100 miles from the fracking activity. The results for the real estate booms show that increases in the return of real estate loans contributed to a decrease in small business lending at branches away these booms. Borrowers from banks with high exposure to residential appreciation experienced slower establishment growth even within areas at a significant distance from the real estate booms.\\ Does It Matter Where You Came From? Ancestry Composition and Economic Performance of US Counties, 1850 - 2010: The United States provides a unique laboratory for understanding how the cultural, institutional, and human capital endowments of immigrant groups shape economic outcomes. In this paper, we use census micro-samples to reconstruct the country-of-ancestry composition of the population of US counties from 1850 to 2010. We also develop a county-level measure of GDP per capita over the same period. Using this novel panel data set, we show that the evolution of the country-of-origin composition of a county is significantly associated with changes in county-level GDP. The cultural, institutional, and human capital endowments from the country of origin drive this association. Particularly important are attitudes towards cooperation with others. Using an instrumental variable strategy, we identify a significant effect of changes in the ancestry-weighted endowments on economic development. Finally, our results suggest that while the fractionalization of ancestry groups is positively related to county GDP, fractionalization in attributes such as trust is negatively related to local economic performance. \\ Culture: Persistence and Evolution: This paper presents evidence on the speed of evolution (or lack thereof) of a wide range of values and beliefs of different generations of European immigrants to the US and interprets the evidence in the light of a simple model of socialization and identity choice. The main result is that persistence differs greatly across cultural attitudes. For instance, many family values, political orientation, and most deep personal religious values converge slowly to the prevailing US norm. Others, such as attitudes toward cooperation, children's independence, and sexual matters, converge rather quickly. The results obtained studying higher generation immigrants differ greatly from those found when the analysis is limited to the second generation, as typically done in the literature, and they imply a lesser degree of persistence than previously thought. Finally, we show that persistence is ``culture specific'' in the sense that the country from which one's ancestors came matters for the pattern of generational convergence
Thesis (PhD) — Boston College, 2016
Submitted to: Boston College. Graduate School of Arts and Sciences
Discipline: Economics
Kong, Lei. "Essays in Corporate Finance and Innovation." Thesis, Boston College, 2016. http://hdl.handle.net/2345/bc-ir:106884.
Full textMy dissertation is comprised of three chapters. The first chapter studies the impact of government spending on corporate innovation output. By exploiting the changes in Senate committee chairmanships as a source of exogenous variation in state-level federal government expenditures, I find that firms headquartered in states with increases in government spending significantly reduce their innovation output, as measured both by patent count and patent citations. These reductions are mostly concentrated in industries that need more labor input for innovative activities and firms headquartered in states with lower unemployment rates. I also analyze three possible channels through which an increase in government spending may affect innovation output: resource reallocation by corporations and individuals from innovative to non-innovative activities; partial movement of innovative activities from the corporate to the government sector; and a reduction in inventor productivity due to a labor-leisure trade-off. My evidence provides the strongest support for the resource reallocation channel. In the second chapter, co-authored with Thomas Chemmanur and Karthik Krishnan, we analyze the relationship between the human capital or “management quality” of firms and their long-run performance, using panel data from the BoardEx database on firms' top management characteristics and a management quality index constructed using common factor analysis on individual proxies for various aspects of management quality. We control for the potential endogenous matching between firm and management quality using a plausibly exogenous shock to the supply of new managers as an instrument. Using this instrument, we find a causal relationship between firms' management quality and future operating performance, market valuations, and stock returns. In the third chapter, co-authored with Thomas Chemmanur, Karthik Krishnan, and Qianqian Yu, using panel data on top management characteristics and a management quality factor constructed using common factor analysis on individual management quality proxies, we analyze the relation between the human capital or “quality” of firm management and its innovation inputs and outputs. We control for the endogenous matching between firm and management quality using a plausibly exogenous shock to the supply of new managers as an instrument, thereby finding a causal relationship between management quality and innovation activities. We show that higher management quality firms achieve greater innovation output by hiring more and higher quality inventors
Thesis (PhD) — Boston College, 2016
Submitted to: Boston College. Carroll School of Management
Discipline: Finance
Dulaney, Alana. "The Roles of Visuospatial and Verbal Working Memory in Children's Mathematical Performance." Thesis, Boston College, 2014. http://hdl.handle.net/2345/bc-ir:104071.
Full textThe ability to mentally store and manipulate information, termed working memory (WM), is essential to mathematical performance. Yet, little research has investigated the mechanisms through which WM capacity is related to mathematical performance in children. Furthermore, the extent to which children utilize specific WM resources when executing mathematical tasks is poorly understood. Addressing these gaps, this research investigated the nature of relations between WM and children's mathematical performance. Participants were 56 second and 32 fourth grade students from public and private elementary schools. Students completed tasks measuring their visuospatial-WM and verbal-WM capacities, the strength of their spatial and symbolic representations of numerical magnitude, and arithmetic performance. Arithmetic strategies were also assessed. In a dual-task condition, children's WM resources were experimentally manipulated: children completed mathematical tasks while retaining visuospatial and verbal stimuli in memory. Results showed that the relation between visuospatial-WM capacity and arithmetic accuracy was mediated by children's spatial numeric representations and the frequency of using a decomposition strategy in solving arithmetic problems. Conversely, the relation between verbal-WM and arithmetic accuracy was mediated by the frequency of using retrieval strategies in solving arithmetic problems. Additionally, the extent to which specific WM resources were involved in children's math performance varied by math task and children's skill level. Verbal-WM resources appeared to be minimally involved in children's spatial numerical representations, but highly involved in symbolic numerical representations and arithmetic calculations. On all math tasks, visuospatial-WM resources were involved to a greater extent among highly skilled children than low-skill children. The results suggest that WM capacity might improve spatial numerical representations and lead children to use memory-based arithmetic strategies more frequently, resulting in better arithmetic performance. Regardless of WM capacity, children who heavily use visuospatial-WM resources are more successful in executing mathematical tasks than children who rely on these resources minimally. These findings contribute to our understanding of how WM can facilitate children's mathematical performance. Implications for identifying specific challenges in children's mathematical learning are discussed
Thesis (PhD) — Boston College, 2014
Submitted to: Boston College. Lynch School of Education
Discipline: Counseling, Developmental and Educational Psychology
Sheehan, Margaret K. "Enhanced Performance in Electrochemical Energy Storage and Conversion via Carbon-Integrated Nanostructures." Thesis, Boston College, 2016. http://hdl.handle.net/2345/bc-ir:107261.
Full textElectrochemical energy storage and conversion applications benefit from the integration of nanostructures into the devices, as they have many more active sites per gram which enables excellent mass utilization of the active species. By controlling the surface of fuel cell catalysts, higher activity and efficiency can be achieved as compared to the bulk counterpart, with multiple catalyst facets of varying activity and efficiency. Nanostructured electrochemical capacitors have enhanced electrolyte diffusion over the surface of the electrode, facilitating high rate capability. Nanostructured materials for energy storage and conversion devices, such as electrochemical capacitors and proton exchange membrane fuel cells, can perform even better with the incorporation of carbon. High surface area carbon can enhance the activity of electrochemical capacitors by improving the conductivity of the electrode and/or enhancing the double layer capacitance. Carbon supports for fuel cell catalysts enable proper dispersion of active material without sacrificing conductivity. The work reported in this thesis is aimed toward improving the performance of electrochemical energy storage and conversion devices through novel incorporation of carbon. Carbon was first used to enhance the performance of electrocatalysts. By wrapping fuel cell catalysts in a porous carbon shell, the activity was increased over its bare and CNT-supported counterparts. The carbon shell synthetic method reported here is a good route to the production of a conductive host for Pd electrocatalysts with good contact and in one step with the formation of the Pd nanoparticles. Carbon was also used to enhance the performance of pseudocapacitors, first by incorporating it into the precursor spray solution in the generation of mesoporous metal oxides and then as a metal-organic framework-derived carbon host with dispersed electrochemically active metal oxides. A carbon network was generated from the pyrolysis of pore directing agents during the decomposition of precursor metal nitrates in the generation of mesoporous manganese oxides in a modified spray pyrolysis approach. The addition of Super P to the precursor spray solution further enhanced the conductivity of the material, enabling the formation of high-performing pseudocapacitors. Lastly, nitrogen-doped carbon cubes produced from thermally-treated parent ZIF-8 cubes were tested as electrochemical capacitors and found to have higher specific capacitance than the nitrogen-doped carbon generated from the parent ZIF-8 rhombic dodecahedra. ZIF-67 cubes were then thermally treated to yield cubic nitrogen-doped carbon hosts for the generated cobalt nanoparticles. Once the cobalt particles were oxidized, the cobalt oxide/carbon hybrid structure exhibited the best pseudocapacitive performance of the ZIF-derived carbon materials tested, exhibiting high specific capacitance and good capacitance retention with increased scan rates and prolonged cycling. Each of the materials tested for electrochemical energy storage and conversion saw an enhancement in performance with the addition of carbon. The results reported here illustrate the importance of carbon in electrochemical cells and the importance of continuing research to modify and improve the methods for carbon production and integration
Thesis (PhD) — Boston College, 2016
Submitted to: Boston College. Graduate School of Arts and Sciences
Discipline: Chemistry
Panero, Maria Eugenia. "Rating the Acting Moment: Dissociation, Flow, and Empathy after a Monologue Performance." Thesis, Boston College, 2018. http://hdl.handle.net/2345/bc-ir:107956.
Full textActors make imagined characters in imaginary circumstances come alive, as if they were real. What cognitive processes make it possible for actors to accomplish this feat? The goal of this dissertation was to examine three characteristics that actors may possess and that might make this possible: dissociation, flow, and empathy. Acting students (n = 44) and non-acting students (n = 43) first completed a baseline measure of dissociation, and then performed a monologue that was given to them. This performance was recorded and later rated on dimensions of acting. Participants next completed self-report measures of dissociation, flow, and empathy. It was hypothesized that acting students would score higher than non-acting students on all three measures, and that dissociation of all participants would increase post-performance. I also assessed whether acting experience, dissociation, flow, empathy, and/or the time taken to prepare the monologue for performance predicted performance ratings. The results revealed that acting students scored significantly higher than non-acting students on flow (and some of its subscales) and empathy (and some of its subscales). Although no group differences emerged on pre-performance levels of dissociation, only acting students significantly increased their level of dissociation post-performance. Finally, acting experience was the only significant predictor of performance ratings for both acting and non-acting students. This research demonstrates that, compared to non-acting students, acting students report higher levels of empathy and flow immediately after performing a monologue. Additionally for acting students, levels of dissociation rise after performing the monologue. Empathy and dissociation are likely important tools used by actors to “become” a character, and flow is likely the result of actors’ ability to immerse themselves fully in the performance. Nevertheless, acting experience is the strongest predictor of how a performance will be rated
Thesis (PhD) — Boston College, 2018
Submitted to: Boston College. Graduate School of Arts and Sciences
Discipline: Psychology
Vaitūnaitytė, Malvina. "Fenolinių junginių kokybinės ir kiekybinės sudėties įvairavimo šermukšnių (S. aucuparia l.) lapuose ir žieduose tyrimas." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2014. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2014~D_20140630_134222-34665.
Full textObject and methods: Sorbus aucuparia L. leaves and flowers study. Total amaunt of phenolic compounds in mountain ash leaves and flowers were evaluated using UV spectrophotometry, phenolic acids and flavonoids were identified and evaluated using HPLC. Aim: to identify and evaluate the content of phenolic compounds in rowan leaves and flowers during mountain ash vegetation and during plant materials (leaves and flowers) storage. Objective: to collect and organise the information about the use of Sorbus aucuparia L., S. aucuparia L. leaves and flowers acumulated compounds, phenolic compounds analysis methods and the impact of the use in medical practice; to perform quantitative analysis of S. aucuparia L. leaves and flowers phenolic compounds and to determine the total phenolics content during rowan growing season; to perform qualitative and quantitative analysis of S. aucuparia L. leaves and flowers phenolic acids and flavonoids and to determine the variation of the phenolics content during rowan growing season; to determine phenolic compounds content changes in Sorbus aucuparia L. plant materials (flowers and leaves) during them storage. Conclusions: S. aucuparia L. leaves and flower is a source of biological active substances which can be used in medicinal practice. Phenolic compounds content in S. aucuparia L. leaves and flowers change during vegetation; mainly phenolic compounds in leaves was accumulated in May - June, in flowers - in the beginning of flowering and massive... [to full text]
Avrillon, Simon. "Coordination des muscles ischio-jambiers : de la performance à la blessure." Thesis, Université Paris-Saclay (ComUE), 2019. http://www.theses.fr/2019SACLS081/document.
Full textThe understanding of hamstrings coordination is a trending topic in human movement science because of their potential involvement in both performance and injury. However, current experimental methods based on muscle activation recording or musculoskeletal modeling do not enable the identification of the factors that influencing muscle coordination for each individual. Addressing this issue is fundamental to understand how the central nervous system explores and exploits a set of many feasible coordination to adopt a good enough solution that enables producing a given motor task. This manuscript aims at describing hamstring coordination with in vivo data. The experimental part of this work is based on three studies that explored the coupling between muscle activation and the hamstrings mechanical properties. Also, this work aims at understanding the factors that influence muscle coordination of each individual, the effect of muscle coordination on their performance and their adaptation after a muscle injury.Our results show that hamstrings coordination varies substantially among active and elite athletes. We have shown that hamstrings coordination was not determined by the mechanical properties of each muscle, i.e. the imbalance of activation between hamstrings is not related to the imbalance of force production capacity. In addition, hamstrings coordination appears more or less advantageous in order to perform during a time to exhaustion task. Finally, muscle coordination differs between injured and uninjured legs, even after the completion of rehabilitation. Specifically, the injured muscle contributes in a lower extent to hamstring total torque in comparison with the same muscle of the opposite leg. These differences could have negative consequences in the short term (for performance) and in the long term, which could hypothetically increase the risk of reinjury
Saunders, Gary. "An Infrastructure for Performance Measurement and Comparison of Information Retrieval Solutions." Diss., CLICK HERE for online access, 2008. http://contentdm.lib.byu.edu/ETD/image/etd2604.pdf.
Full textMaoret, Massimo. "Reunited: Exploring the effects of tie reactivation on newcomers' performance in interdependent organizations." Thesis, Boston College, 2013. http://hdl.handle.net/2345/bc-ir:104080.
Full textManagement scholars have rarely analyzed how prior social networks might help or hinder the job performance of new organizational members. However, internal and external job markets are increasingly characterized by high mobility of experienced professionals, who have extensive social networks rooted in their past collaborations and shared work experiences. Organizations rely more frequently on project teams and project-based organizing to perform interdependent tasks, so employees transition more often across project teams - and firms - in their boundary-less careers. These changes call for a better understanding of whether the reactivation of past social ties is likely to help or hinder the job performance of new employees, especially those engaged in highly interdependent tasks. The object of this study is to theorize and empirically test the mechanisms by which the reactivation of a particular social tie - shared work experience - may impact new members' performance. Using a social networks lens to study new members' organizational entries, this study not only contributes to the recent fast-growing literature on the reactivation of social ties, but also to studies on new members' performance, and has considerable relevance for enhancing an organization's performance through the better management of its expert workers' human and social capital
Thesis (PhD) — Boston College, 2013
Submitted to: Boston College. Carroll School of Management
Discipline: Management and Organization
Skučas, Vytautas. "Vežimėlių krepšinio žaidėjų specialiųjų fizinių gebėjimų, aerobinio pajėgumo ir žaidimo rodiklių kaita amžiaus, žaidimo stažo ir negalios aspektais." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2008. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2008~D_20080618_125733-51581.
Full textBecause of discussion among researchers and shortage of research works in respect of special physical abilities, aerobic performance and playing skills of wheelchair basketball players. There are actual and relevant scientific research analyzing these problems in aspects of players age, disability and time playing wheelchair basketball. Aim of the research was to determine and evaluate special physical abilities, the aerobic performance and playing skills of weelchair basketball players according to playing experience, age and disability. Goals of research : 1. To determine and evaluate physical features of weelchair basketball players according to playing experience, age and disability. 2. To determine and evaluate playing skills of weelchair basketball players according to playing experience, age and disability. 3. To determine and evaluate the aerobic performance and of weelchair basketball players according to playing experience, age and disability. By methods of testing and pedagogical observation 42 wheelchair basketball players participating in wheelchair basketball competitions were under research. Participants of the research were divided into different groups according to their age, disability and time playing wheelchair basketball. The following wheelchair basketball players participating in the research according to the International wheelchair basketball classification system were divided: eight 1-1,5 point players, fifteen 2-2,5 points players, 8– 3-3,5... [to full text]
Heesop, Kim. "A study of the influence of choice of record fields on retrieval performance." Thesis, Northumbria University, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.391752.
Full textLigeikis, Linas, and Jonas Jurkus. "UAB "Mažeikių šilumos tinklai" veiklos ir perspektyvų ekonominis vertinimas." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2009. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2009~D_20090909_091642-17626.
Full textMaster thesis analyzes UAB (PLLC) “Mažeikių šilumos tinklai” (further referred to as company) performance efficiency during the period of 2003 – 2007 year, presents an outlook assessment for the 2008 – 2010 period, enabling to make practical decisions in improving financial status of the company (utilization of natural rare gas) as well as ensuring performance stability (including continuous provision of heat energy to consumers) – instillation of cogeneration plants. The Paper presents the values of economic indicators (financial stability, liquidity, business activity, profitability, etc.) for the period of 2003 – 2007 year and the expected indicators for the 2008 – 2010 period. The research hypothesis, formulated by the authors - that the impact of the increasing fuel costs may be compensated by organizational – technical means, enabling to stabilize the increase of expenditure and, concurrently, selling price of heat energy - has been verified. Specific propositions as well as economic calculations are presented. The methodology, that could be used by all companies, producing heat energy, for the economic assessment of their performance efficiency, is presented in the form of a table (on the grounds of MS Excel program), into which a company should enter financial statement data and other information and the program shall deliver the financial ratios and other information concerning performance efficiency of the company. The table is enclosed in the form of a CD medium... [to full text]
Bamat, David. "AComparison of Methods for Estimating State Subgroup Performance on the National Assessment of Educational Progress:." Thesis, Boston College, 2021. http://hdl.handle.net/2345/bc-ir:109082.
Full textThe State NAEP program only reports the mean achievement estimate of a subgroup within a given state if it samples at least 62 students who identify with the subgroup. Since some subgroups of students constitute small proportions of certain states’ general student populations, these low-incidence groups of students are seldom sufficiently sampled to meet this rule-of-62 requirement. As a result, education researchers and policymakers are frequently left without a full understanding of how states are supporting the learning and achievement of different subgroups of students.Using grade 8 mathematics results in 2015, this dissertation addresses the problem by comparing the performance of three different techniques in predicting mean subgroup achievement on NAEP. The methodology involves simulating scenarios in which subgroup samples greater or equal to 62 are treated as not available for calculating mean achievement estimates. These techniques comprise an adaptation of Multivariate Imputation by Chained Equations (MICE), a common form of Small Area Estimation known as the Fay-Herriot model (FH), and a Cross-Survey analysis approach that emphasizes flexibility in model specification, referred to as Flexible Cross-Survey Analysis (FLEX CS) in this study. Data used for the prediction study include public-use state-level estimates of mean subgroup achievement on NAEP, restricted-use student-level achievement data on NAEP, public-use state-level administrative data from Education Week, the Common Core of Data, the U.S. Census Bureau, and public-use district-level achievement data in NAEP-referenced units from the Stanford Education Data Archive. To evaluate the accuracy of the techniques, a weighted measure of Mean Absolute Error and a coverage indicator quantify differences between predicted and target values. To evaluate whether a technique could be recommended for use in practice, accuracy measures for each technique are compared to benchmark values established as markers of successful prediction based on results from a simulation analysis with example NAEP data. Results indicate that both the FH and FLEX CS techniques may be suitable for use in practice and that the FH technique is particularly appealing. However, before definitive recommendations are made, the analyses from this dissertation should be conducted employing math achievement data from other years, as well as data from NAEP Reading
Thesis (PhD) — Boston College, 2021
Submitted to: Boston College. Lynch School of Education
Discipline: Educational Research, Measurement and Evaluation
Hellowell, Mark Stephen. "Fair return for risk? : an examination of structure, competition and profitability in the market for private finance in the National Health Service." Thesis, University of Edinburgh, 2012. http://hdl.handle.net/1842/7895.
Full textFelekoglu, Oktay. "Propagation and performance analysis for a 915 MHz wireless IR image transfer system." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 2005. http://library.nps.navy.mil/uhtbin/hyperion/05Jun%5FFelekoglu.pdf.
Full textThesis Advisor(s): Richard M. Harkins, Gamani Karunasiri. Includes bibliographical references (p. 77-78). Also available online.
Žiūraitė, Jurgita. "Vidinės organizacijos komunikacijos, darbuotojų motyvacijos ir darbo atlikimo ryšys." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2008. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2008~D_20080901_104559-83462.
Full textCommunication is one of successful functioning organization‘s elements. In Lithuania interest in internal organizational communication increases rapidly. Many companies‘ managers comprehended that when communicating effectively, organization can achieve more during a shorter period of time. Current study aimed to determine internal organizational communication, motivation and performance relationships as well as present a model reflecting them (for subjective as well as objective performance indicator). Employees of the same job position in the same organization participated in the research. 122 employees filled in on-line questionnaire which included Communication Satisfaction Questionnaire, Work Preference Inventory to measure intrinsic and extrinsic motivation, Extended Delft Measurement Kit General Performance subscale. Demographic questions as well as the question about the amount of additions to a fixed salary during half a year period were included. After performing data analysis, the study found that satisfaction with personal feedback and media quality differs in groups according to regions to which employees belong according to their working place. The longer study participant has worked in the company; the lower is his/her satisfaction with personal feedback, organizational perspective, communication climate and media quality. The higher is employee’s satisfaction with organizational integration, organizational perspective and media quality, the better he/she tends... [to full text]
Giedraitienė, Aistė. "Pirminės sveikatos priežiūros įstaigų veiklos vertinimo sistemos analizė ir tobulinimas." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2006. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2006~D_20060613_140223-27892.
Full textSchnorr, Carla. "Desempenho de municípios gaúchos: uma análise pré e pós promulgação da lei de responsabilidade fiscal - IRF." Universidade do Vale do Rio dos Sinos, 2012. http://www.repositorio.jesuita.org.br/handle/UNISINOS/3375.
Full textMade available in DSpace on 2015-04-27T18:17:20Z (GMT). No. of bitstreams: 1 desempenho_municipios.pdf: 802165 bytes, checksum: 2ab2ca6f306e55aab2e8f7a82154828b (MD5) Previous issue date: 2012-03-23
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O estudo teve por objetivo identificar o desempenho de municípios gaúchos pré e pós promulgação da LRF. Em decorrência do desregramento da gestão dos recursos públicos municipais, a instituição da LRF teve o intuito de disciplinar as finanças públicas e garantir o equilíbrio fiscal. Trata-se de uma pesquisa descritiva, com abordagem quali-quantitativa, realizada no período entre 1997-1999 e 2008-2010. Para a obtenção dos dados, foi utilizada a técnica de levantamento de dados documental, por meio de relatórios FINBRA publicados no site da STN, nos 429 municípios que compuseram a amostra da pesquisa. Buscou-se nesses documentos dados referentes às métricas estabelecidas pela LRF: despesa com pessoal, dívida consolidada líquida, operações de crédito, serviços da dívida e garantias. Os dados coletados foram submetidos ao tratamento e análise da técnica de diferença de média. Com base na análise pode-se constatar que o desempenho com a vigência da LRF foi favorável quanto à redução da média geral nas variáveis referentes à despesa com pessoal, dívida consolidada líquida e serviços da dívida; e desfavorável nas operações de créditos e concessão de garantias. Relativo ao cumprimento dos limites legais fixados pela legislação, o desempenho foi positivo nas métricas despesa com pessoal, operações de crédito e serviços da dívida, já que o número de municípios em desacordo à LRF reduziu, enquanto que a dívida consolidada líquida e a concessão de garantias apresentaram desempenho negativo, visto que houve aumento no número de municípios que infringiram a lei. Os resultados permitem concluir que o advento da LRF contribuiu para melhorar o desempenho dos municípios gaúchos.
The study had the purpose of identify the performance of gauchos cities before and after LRFs promulgation. Because of the uncontrolled management of municipal public resources, LRFs institution had the intention of disciplining public finances and ensure the fiscal balance. This is a descriptive research, with qualitative and quantitative approach, carried out between 1997-1999 and 2008-2010. To obtain the data, the documentary data collection technique was employed, through FINBRA reports published in the STN website, in the 429 cities that formed the research sample. It was searched in these documents data that take into account the metrics established by LRF: personnel expenditure, consolidated net debt, credit transactions, debt service and guarantees. The collected data was submitted to treatment and analysis of the mean difference technique. Based on the analysis it is possible to determine that the performance with LRF was favorable in the decrease of the variables overall averages from personnel expenditure, consolidated net debt and debt service; and unfavorable in credit transactions and granting guarantees. Relative to the accomplishment of the legal limits fixed by the law, the performance was positive in the personnel expenditure, credit transactions and debt service metrics, since the amount of cities at odds with LRF reduced, while the consolidated net debt and granting guarantees presented a negative performance, considering that there was an increase in the number of cities that broke the law. The results allow one to conclude that the LRFs advent contributed to improve the performance of the gauchos cities.
Zheng, Xiang. "Three Essays in Fintech and Corporate Finance:." Thesis, Boston College, 2021. http://hdl.handle.net/2345/bc-ir:109077.
Full textMy Ph.D. dissertation consists of three essays. The first essay studies the economic consequence of the current patent screening process on firm performance using a machine-learning approach. Using USPTO patent application data, I apply a machine-learning algorithm to analyze how the current patent examination process in the U.S. can be improved in terms of granting higher quality patents. I make use of the quasi-random assignment of patent applications to examiners to show that screening decisions aided by a machine learning algorithm lead to a 15.5% gain in patent generality. To analyze the economic consequences of current patent screening on both public and private firms, I construct an ex-ante measure of past false acceptance rate for each examiner by exploiting the disagreement in patent screening decisions between the algorithm and current patent examiner. I first show that patents granted by examiners with higher false acceptance rates have lower announcement returns around patent grant news. Moreover, these patents are more likely to expire early. Next, I find that public firms whose patents are granted by such examiners are more likely to get sued in patent litigation cases. Consequently, these firms cut R&D investments and have worse operating performance. Lastly, I find that private firms whose patents are granted by such examiners are less likely to exit successfully by an IPO or an M&A. Overall, this study suggests that the social and economic cost of an inefficient patent screening system is large and can be mitigated with the help of a machine learning algorithm. The second essay studies how investor attention affects various aspects of SEOs. Models of seasoned equity offerings (SEOs) such as Myers and Majluf (1984) assume that all investors in the economy pay immediate attention to SEO announcements and the pricing of SEOs. In this paper, we analyze, theoretically and empirically, the implications of only a fraction of investors in the equity market paying immediate attention to SEO announcements. We first show theoretically that, in the above setting, the announcement effect of an SEO will be positively related to the fraction of investors paying attention to the announcement and that there will be a post-announcement stock-return drift that is negatively related to investor attention. In the second part of the paper, we test the above predictions using the media coverage of firms announcing SEOs as our main proxy for investor attention, and find evidence consistent with the above predictions. In the third part of the paper, we develop and test various hypotheses relating investor attention paid to an issuing firm to various SEO characteristics. We empirically show that institutional investor participation in SEOs, the post-SEO equity market valuation of firms, SEO underpricing, and SEO valuation are all positively related to investor attention. Lastly, we also use the number of SEC EDGAR file downloads as an alternative proxy for investor attention, and our findings are robust to this alternative investor attention measure. The results of our identification tests show that the above results are causal. The third essay studies how the location of a lead underwriter in its network of investment banks affects various aspects of seasoned equity offerings (SEOs). We hypothesize that investment banking networks perform an important economic role in the SEO underwriting process for SEOs, namely, that of information dissemination, where the lead underwriter uses its investment banking network to disseminate information about the SEO firm to institutional investors. Consistent with the above information dissemination role, we show that firms whose SEOs are underwritten by more central lead underwriters are associated with a smaller extent of information asymmetry in the equity market. We then develop testable hypotheses based on the information dissemination role of underwriter networks for the relationship between SEO underwriter centrality and various SEO characteristics, which we test in our empirical analysis. Consistent with the above hypotheses, we find that more central lead SEO underwriters are associated with less negative SEO announcement effects; smaller SEO offer price revisions; smaller SEO discounts and underpricing; higher immediate post-SEO equity valuations for issuing firms; and greater post-SEO long-run stock returns for issuing firms. We also find that SEOs with more central lead underwriters are associated with greater institutional investor participation. Our instrumental variable (IV) analysis using the industry-average bargaining power of underwriters relative to issuers as the instrument shows that the above results are causal. Consistent with greater value creation by more central lead underwriters, we find that more central lead underwriters receive greater compensation
Thesis (PhD) — Boston College, 2021
Submitted to: Boston College. Carroll School of Management
Discipline: Finance
Kareiva, Mantas. "Skaičiavimų, panaudojant duomenų kubus, organizavimas ir tyrimas." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2008. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2008~D_20080710_142632-53803.
Full textData cube pre computing is time and computer resources consuming task. In spite of this it needs to be done in order to construct an OLAP cube to take advantage of fast querying in data sets enormous in its sizes. Telecommunication industries collect huge amount of data about events in its networks. Every data portion holds a lot of information (i.e. service type, originator, receiver, time for start, duration, data volume, calling direction, cost, network interface address, etc.). In mobile telecommunication industries it is common to award each customer / subscriber by some prize (money, cell phone, discount to services and so on) in return of 24 month obligation to use one’s services. So, every 24 months subscriber gains ability to choose another telecommunication network. In order to maintain stable amount of subscribers’ service provider must offer something in return. In order to do that correctly, without financial loses, one must know exact usage statistics of each subscriber. This paper covers couple tips to arrange data in data warehouses (data marts) in order to achieve greater data cube pre processing speed. One of these methods covers partial data aggregation to highest degree, still sufficient to answer specific queries. Another method shows the ability to synthesize data cube dimensions in order to lower data volumes, that data cube pre calculation could take less time.
Goksin, Celalettin. "Evaluation of tactical decision aid programs for prediction of field performance of IR sensors." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 2000. http://handle.dtic.mil/100.2/ADA383398.
Full text"September 2000." Thesis advisor(s): Cooper, Alfred W.; Goroch, Andreas K. Includes bibliographical references (p. 145-148). Also available online.
Adomaitytė, Alma. "Veiklos vertinimo sistema Lietuvos viešojo administravimo institucijose ir įstaigose." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2011. http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2011~D_20110705_133322-37764.
Full textPersonnel performance appraisal is a substantial area of both public administration and private organization management. It encourages an organization and human resources of organization to improve its activity, enhance productivity and provide a feedback for personnel. This work contains of further problematic questions: what are advantages and disadvantages of academic performance appraisal system and practical implementation of Lithuanian public administration? What is the impact of human factor for the improvement of public administration staff performance appraisal system? The object of research is a performance appraisal off staff in institutions and agencies of Lithuanian public administration. In this work appraisal of activity is analysed as a process by which individual employee activity, but not entirety of organization activity is assessed. The purpose of research – to analyse the existing activity performance appraisal system of Lithuanian public administration in institutions and agencies, to identify this system coincidence to academic models of performance appraisal and highlight the relation between academic basis of activity assessment and practical adaptation and improvement perspectives. For this purpose the main tasks are set: 1. To analyse and summarize academic models of performance appraisal, to highlight the main components of performance appraisal system. 2. To analyse the legislation that regulates personnel performance appraisal in institutions... [to full text]
Dumurgier, Julien. "Conséquences et déterminants du déclin moteur chez le sujet âgé : analyses transversales et longitudinales dans la cohorte des 3 Cités." Phd thesis, Université Paris Sud - Paris XI, 2011. http://tel.archives-ouvertes.fr/tel-00635892.
Full textMažeikaitė, Ingrida. "Fenolinių rūgščių ir fenilpropanoidų nustatymas propolyje." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2008. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2008~D_20080616_100330-71888.
Full textThe phenolic acids and phenylpropanoids have an important biological activity and are therapeutic agents of crude drugs. Development of validated analysis techniques of these phytotherapeutic agents (fingerprinting and assay procedures) is an important practice for efficacy, safety and quality control of herbal drug preparations. 18 samples of propolis were collected from different districts of Lithuania. The aim of the present work was to study chemical composition of collected samples and estimate analytical capabilities of the evaluation of selected phenolic acids and phenylpropanoids: caffeic acid, chlorogenic acid, cinnamic acid, coumaric acid, ferulic acid, gallic acid, protocatechuic (3,4-dihydroxybenzoic) acid, rosmarinic acid, vanillic acid and vanillin. Optimization and validation procedures of rapid and simple method of reversed phase high performance liquid chromatography were carried out. The mobile phase of the optimized chromatographic method consisted of methanol and 0.5 per cent acetic acid solvent in water. Under the optimal separation conditions (described in Methods), analysis was done in 27 min, with the retention times 4.04 min (gallic acid), 6.93 min (protocatechuic acid), 11.30 min (chlorogenic acid), 12.26 min (vanillic acid), 12.93 min (caffeic acid), 13.80 min (vanillin), 16.97 min (coumaric acid), 17.95 min (ferulic acid), 22.29 min (rosmarinic acid) and 26.30 min (cinnamic acid). The limits of detection and the limits of quantitation were between... [to full text]
Ayoub, Anas. "Sources laser ultrarapides performantes dans le moyen IR et le Tz." Thesis, Normandie, 2020. http://www.theses.fr/2020NORMR044.
Full textThe atome probe tomography is an instrument for analyzing matter in three dimensions with atomic resolution. This instrument relies on the effect of an electric field generated at the end of a sample cut into the shape of a nanoscale needle to evaporate the surface atoms which are collected by a two-dimensional detector. The measurement of the time of flight of the ions whose evaporation is triggered by an electrical or optical pulse makes it possible to measure the chemical composition in addition to the 3D localization of the atoms. In current atome probes, atomic evaporation is triggered by a high-speed laser emitting in the UV. However, the interaction of UV light with matter induces thermal heating which limits the mass resolution of the instrument and prevents its use for the analysis of fragile materials such as biocompatible components. This thesis work aims to study solutions to promote rapid evaporation while inhibiting unwanted thermal effects of the laser in atome probe. Our approach consists in exploiting ultrashort pulses in the mid-infrared or THz domain due to their high ponderomotive energy associated with low photon energy. This manuscript reports on the development of a bench for the generation and characterization of intense THz pulses. Coupling these radiations with a negatively polarized metallic nanotip has made it possible to characterize the near field induced at the surface of the nanotip, which is strongly modified by the antenna effect. The second part reports on the development of an ultra-fast laser source tunable in the mid-infrared around 3 mm using fluoride glass fibers
Tamošiūnaitė, Nida. "Skirtingo meistriškumo krepšininkų savosios vertės jausmo ir sociometrinio statuso sąsaja." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2005. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2005~D_20050520_142643-30280.
Full textUhl, Elizabeth. ""Work Hard and Be Kind”: How a Sports Team’s Shared Values Promote Social Movement Engagement." Thesis, Boston College, 2021. http://hdl.handle.net/2345/bc-ir:109149.
Full textCoinciding with the upsurgence of the Black Lives Matter Movement in the Summer of 2020, collegiate and professional sports teams have exhibited increased involvement in social issues. Existing research primarily analyzes the platform and visibility that athletes have to promote social agendas, but there is a gap in knowledge regarding how a sports team forms a collective identity around a social movement. This study seeks to fill this gap in research by utilizing qualitative surveying and interviewing to examine how Boston College athletes engage in the Black Lives Matter Movement. Processes of grounded theory and inductive analysis are used to understand how the Boston College Women’s Rowing Team values contribute to the team’s shared mental model to fulfill the conditions of social movement emergence and further promote team value adoption and team success. Evaluation of student-athletes across different Boston College teams through this study also offers insights to the controversy over sports teams engaging in social issues
Thesis (BA) — Boston College, 2021
Submitted to: Boston College. College of Arts and Sciences
Discipline: Departmental Honors
Discipline: Sociology