Dissertations / Theses on the topic 'SEO Off Page'

The goal of this thesis is to analyze methods and techniques applying to Search Engine Optimization (SEO). The thesis combines theoretical knowledge extracted from scientific sources and from author's experiences. Search Engine Optimization methods are divided into two major chapters according to sphere of their activity. On Page Factors -- factors occuring on web pages and Off Page Factors -- factors affecting web pages but occuring out of web pages. There is a case study at the end of this thesis. Acquired knowledge are used there. The case study is based on real-world project and includes detailed results and economical indicators.

Search engine optimization (SEO) is the way to improve the visibility of a website on thesearch engine result page (SERP). If the website is not on the first three result, then it will bemissing most of the traffic that could be generated. This report will go into detail on how towork with SEO and how to get a website to rank high. Both On-page, how to work with codeand content, and Off-page, how to get more links, methods will be discussed, with a higherfocus on On-page.This paper strives to find what methods and techniques to use with the results gathered fromscientific databases, interviews and three websites with different levels of SEOimplementation. How to structure the code, where and how to use keywords, domain name,links and much more will be discussed in this paper.

Purpose – The purpose of this thesis is contributing to the research on the efficacy of backlinks originating from Web 2.0 blogs by designing a costless method for creating controllable backlinks to a website, solely with Web 2.0 blogs as a source of backlinks. The objective is to find out if such links can provide an effect on a website’s positions in the Google SERPs in 2020 and to hopefully contribute with a controllable link strategy that is available for any SEO practitioner regardless of their economic circumstances. The thesis provides answers to the two research questions: 1. What positions in the SERPs can an already existing website claim as a result of creating and implementing a link strategy that utilizes Web 2.0 blogs? 2. In context of implementing a link strategy, what practices must be considered for it to remain unpunished by Google in 2020? Method – The choice of research method, due to the nature of the project is Design Science Research (DSR), in which the designed artefact is observationally evaluated by conducting a field study. The artefact consists of four unique Web 2.0 blogs that each sent a backlink to the target website through qualitative blog posts following Google’s guidelines. Quantitative data was collected using SERPWatcher by Mangools, which tracked 29 keywords for 52 days, and was qualitatively analysed. Conclusions – There is a distinct relation between the improvement in keyword positions and the implementation of the artefact, leaving us with the conclusion that it is reasonable to believe that Web 2.0 blog backlinks can affect a website’s positions in the SERPs in the modern Google Search. More research experimenting with Web 2.0 blogs as the origin of backlinks must be conducted in order to truly affirm or deny this claim, as an evaluation on solely one website is insufficient. It can be concluded that the target website was not punished by Google after implementation. While their search algorithm may be complex and intelligent, it was not intelligent enough to punish our intentions of manipulating another website’s keyword positions via a link scheme. Passing through as legitimate may have been due to following E-A-T practices and acting natural, but this is mere speculation without comparisons with similar strategies that disregard these practices. Limitations – Rigorous testing and evaluation of the designed artefact and its components is very important when conducting research that employs DSR as a method. Due to time constraints, the lack of data points in form of websites the artefact has been tested on, as well as the absence of iterative design, partially denies the validity of the artefact since it does not meet the criteria of being rigorously tested. The data collected would be more impactful if keyword data were gathered many days before executing the artefact, as a pre-implementation period larger than 7 days would act as a reference point when evaluating the effect. It would also be ideal to track the effects post-implementation for a longer time period due to the slow nature of SEO. Keywords – SEO, search engine optimization, off-page optimization, Google Search, Web 2.0, backlinks.

This thesis is focused on thorough description of Competitive Intelligence term and its fol-lows usage for webpages audit. The practical part of this thesis is primarily created for the Bisnode company. However, it can be used everyone who wants to perform on-line webpages analysis of their competitors. In thesis are also used professional tools of Majestic company and SEOPowerSuite company. I got these for limited time after my e-mail corre-spondence with company´s support team. At the beginning of practical section the Bisnode company is introduced to readers, so that they might become familiar with it. After that, the analysis was performed and divided into 4 thematic areas based on Bisnode´s wish. I ana-lyzed strengths and weaknesses of monitored sites in each of this section so that the company can learn not only from their mistakes but also from mistakes of its rivals. I tried to analyze Competitive Intelligence term in detail in the theoretical part of thesis. In addition, this term is viewed from multiple angles (its history, reflection of its Czech trans-lation, ethic associated with the CI term or description CI as process). So, this thesis can be also a beneficial for readers that know this term but want get deeper knowledges.

The aim of this study is to examine whether search engine marketing may influence consumers’ brand awareness in terms of brand recall and brand recognition. The theoretical background derives from the definition and rationale of brand awareness. The study is further based on a theoretical outline of search engine marketing and its components. Furthermore, the Hierarchy of Effects Model is used in order to describe the steps a company may influence consumers in their purchase process. In order to capture consumers’ reasoning and behaviour in the search engine context, a two-way study approach was conducted. Firstly, by letting ten participants conduct a log related to their search engine behaviour, spanning for a period of ten days. Secondly, by conducting semi-structured interviews, using their logs as a base for further discussions. Results from this study show that search engine marketing can have an effect on consumers’ brand awareness by creating initial awareness or by building upon existing awareness. Secondly, in the context of unknown brands, the results show that it had a particular strong effect on brand recognition among the participants. Thirdly, it appeared that SEM can work as a gateway for brands and an enabler for building a brand attitude amongst its potential customers. Lastly, the website experience is a crucial step for brands in order to positively influence consumers in their purchase process.

Na teoria quântica é usual se referir a probabilidade de encontrar uma partícula entre as posições x e x + dx no instante t, embora a teoria não forneça quando ocorre a detecção. Nos primórdios da teoria, Pauli apresentou um argumento refutando a ideia de introduzir um operador que descreva a probabilidade do instante em que ocorre a detecção. Mais tarde, Page e Wootters, motivados pelo fato de não se observar autoestados de superposição de energia, apresentaram um formalismo quântico não-relativista num espaço estendido em que espaço e tempo desempenham papéis equivalentes, sendo consistente com as indagações feitas por Pauli. Isso leva a uma descrição dada pela probabilidade condicional de encontrar uma partícula entre x e x + dx em relação ao tempo [t, t + dt] dado por outra partícula, chamada de partícula relógio. Essa dissertação consiste de uma revisão da proposta de Page e Wootters para abordar o problema do tempo na mecânica quântica bem como de uma análise detalhada desta utilizando de ferramentas recentes introduzidas na área de informação quântica para o tratamento de simetrias em física.<br>In quantum theory it is usual one refers to the probability of finding a particle between the positions x and x + dx at time t, although the theory does not provide when detection occurs. In the primordies of the theory, Pauli presented an argument refuting the idea of introducing an operator describing the probability of the instant in which the detection occurs. Later, Page and Wootters, motivated by the fact that one is not able to observe energy eigenstates superposition, presented a non-relativistic quantum formalism in an extended space in which space and time play equivalent roles, being consistent with Pauli´s inquiries. This leads to a description given by the conditional probability of finding a particle between x and x + dx in respect to the time [t, t + dt] given by another particle, called the clock particle. This dissertation consists in a review of the Page and Wootters proposal to address the time problem in quantum mechanics as well as a detailed analysis of this using recent tools introduced in the area of quantum information for the treatment of symmetries in physics.

The two related putative cytochrome c oxidase (COX) assembly factors HCC1 and HCC2 from Arabidopsis thaliana are Homologs of the yeast Copper Chaperones Sco1p and Sco2p. The hcc1 null mutation was previously shown to be embryo lethal while the disruption of the HCC2 gene function had no obvious effect on plant development, but increased the expression of stress-responsive genes. Both HCC1 and HCC2 contain a thioredoxin domain, but only HCC1 carries a Cu-binding motif also found in Sco1p and Sco2p. In order to investigate the physiological implications suggested by this difference, various hcc1 and hcc2 mutants were generated and analyzed. The lethality of the hcc1 knockout mutation was rescued by complementation with the HCC1 gene under the control of the embryo-specific promoter ABSCISIC ACID INSENSITIVE 3. However, the complemented seedlings did not grow into mature plants, underscoring the general importance of HCC1 for plant growth. The HCC2 homolog was shown to localize to mitochondria like HCC1, yet the function of HCC2 is evidently different, because two hcc2 knockout lines developed normally and exhibited only mild growth suppression compared with the wild type (WT). However, hcc2 knockouts were more sensitive to UV-B treatment than the WT. Complementation of the hcc2 knockout with HCC2 rescued the UV-B-sensitive phenotype. In agreement with this, exposure of wild-type plants to UV-B led to an increase of HCC2 transcripts. In order to corroborate a function of HCC1 and HCC2 in COX biogenesis, COX activity of hcc1 and hcc2 mutants was compared. While the loss of HCC2 function had no significant effect on COX activity, the disruption of one HCC1 gene copy was enough to suppress respiration by more than half compared with the WT. Therefore, we conclude that HCC1 is essential for COX function, most likely by delivering Cu to the catalytic center. HCC2, on the other hand, seems to be involved directly or indirectly in UV-B-stress responses.

Animal personality is found in a wide range of taxa, yet our knowledge of what maintains consistent among-individual variation in behaviour is still incomplete. Many personality traits are associated with fitness, leading to the expectation that, under selection, genetic (and among-individual) variation will be eroded over time. Several adaptive models have been developed in order to explain this maintenance of variation. These include state-dependence, state-behaviour feedback loops, life-history and behavioural coadaptation and the Pace of Life syndrome. These models represent good starting points for thinking about what drives and maintains among-individual variation in behaviour, and while empirical support for these models is mixed, one thing they do have in common is the assumption of a significant genetic basis underpinning personality traits. Significant heritability is required for an evolutionary response to selection and for among-individual variation to be adaptive. The univariate estimates of heritability for personality traits that are growing in the literature, while useful, are likely insufficient to predict how personality traits will respond to selection. This thesis uses the Trinidadian guppy, Poecilia reticulata, and other species to explore patterns of among-individual and genetic variation in personality traits, advocating the benefits of using multivariate perspectives throughout. Firstly, the among-individual covariance structure between measures of boldness, growth and metabolic rate are estimated in a test of the Pace of Life syndrome. Secondly, an appraisal of the relative strength of maternal and genetic effects on offspring personality and how it changes over ontogeny. Next, a comprehensive treatment of sexual dimorphism in behaviour and size followed by analysis of genotype-by-sex interactions using both univariate and multivariate methods. Finally, a comparative analysis of personality in 7 species of small fish, identifying the main axis of among-individual variation from a single assay in each and quantifying the phylogenetic signal.

My work is focused on web site’s optimization for search engines, optimization tricks and consequent sale strategy, including marketing and manager’s knowledge of economic branch such as competition, propagation and market’s presentation.

À peine arrivé au pouvoir, Bonaparte propose au pape Pie VII de rétablir le culte catholique en France, ce qui sera formalisé par le concordat de 1801. En échange, il exige, entre autres, que tous les évêques alors reconnus par Rome soient destitués et remplacés par d’autres, nommés par lui. Pie VII est placé dans l’embarras. Il ne sait pas s’il a le droit de révoquer d’autorité des évêques. Il prend le parti de leur demander de démissionner, mais près de la moitié d’entre eux refuse. Le maintien sur leurs sièges de ces évêques empêcherait la conclusion du Concordat, que Pie VII estime être un grand bien pour l’Église. C’est en vue de ce bien qu’il finit par considérer qu’il possède l’autorité pour révoquer les évêques non-démissionnaires. Cette thèse se propose d’établir l’histoire de cette décision, à partir, entre autres, de l’exploitation d’archives inédites, dont les plus importantes sont publiées dans leur intégralité. Elle chercher à expliquer comment le Saint-Siège parvient, à la faveur de la Restauration, à la faire accepter à l’ensemble de l’épiscopat. Il en détaille les enjeux, tant pour l’époque que pour la postérité. En définitive, ce texte soutient la thèse que, même si Pie VII a pris une décision sans précédent, cette dernière était conforme à la tradition canonique. Elle est, en outre, aujourd’hui encore, riche d’enseignement, tant au niveau théologique que canonique et même pratique. Elle pourrait même, sous certains aspects, être une source d’inspiration du Saint-Siège dans ses relations avec certains pays<br>As soon as he came to power, Bonaparte proposed to Pope Pius VII to re-establish Catholic worship in France, which was formalised by the Concordat of 1801. In exchange, he demanded, among other things, that all the bishops then recognised by Rome be removed from office and replaced by others appointed by him. Pius VII was in a quandary. He did not know whether he had the right to dismiss bishops. He decided to ask them to resign, but nearly half of them refused. The retention of these bishops in their seats would prevent the conclusion of the Concordat, which Pius VII considered a great good for the Church. It was with this good in mind that he came to believe that he had the authority to dismiss the non-resigning bishops. This work aims at establishing the history of this decision. Among other things, we used a lot of unpublished archives, the most important of which are published here in their entirety. The thesis seeks to explain how the Holy See succeeded, under the Restoration, in getting the entire episcopate to accept his decision. It details the issues at stake, by that time and after. Ultimately, this text supports the thesis that, even if Pius VII took an unprecedented decision, he acted in conformity with the whole canonical tradition. This decision can, moreover, still give theological, canonical and even practical lessons today. In some respects, it could even be a source of inspiration for the Holy See in its relations with certain countries

Entre 1860 et 1870, plus de 10 000 volontaires catholiques ont défendu par les armes le pouvoir temporel du Pape Pie IX. Venus d’une trentaine de pays, tous ont répondu à l’appel du Souverain Pontife, menacé dans son intégrité par les troupes du roi de Sardaigne Victor-Emmanuel II, désireux de réaliser l’unité italienne. Parmi eux, 3 000 Français se sont engagés pour six mois ou pour dix ans. Environ 150 sont officiers, aumôniers ou médecins.Ce sont eux, ces cadres du régiment, que nous allons étudier. Qui sont-ils ? D’où viennent-ils ? Quelles ont pu être leurs motivations ? Nous étudierons le parcours de ces derniers défenseurs en date des États Pontificaux, non seulement en amont, depuis leur enfance et à travers leurs origines familiales, en cherchant notamment à savoir ce que faisaient leurs parents, mais aussi en abordant ce qu’ils sont devenus après la fin de l’existence officielle du régiment. Leur histoire, leurs engagements, ainsi que ceux de leurs descendants, ne s’arrêtent en effet pas ainsi mais courent sur toute une vie, s’écrivant entre le XIXe et le XXe siècle.Ce qu’ils ont été, ce qu’ils ont fait, ce qu’ils sont devenus et le souvenir qu’ils ont laissé s’inscrit dans un itinéraire personnel beaucoup plus large et doit nous permettre de dégager le sens qu’ils ont voulu donner à leur vie<br>Between 1860 and 1870, more than 10 0000 catholic volunteers have taken up arms to defend the temporal power of Pope Pie IX in his struggle against the troops of the king of Sardinia Victor Emmanuel II who wanted to unify Italy. 3 000 French men, including about 150 officers, army chaptains and doctors, enlisted for six months or for ten years. We will focus on these particular men. Who are they? Where do they come from ? What motives actuated them ? We will not only study their life, their childhood, the social position of their family, their parents jobs, but also what has become of them after the official end of their regiment. Their story, their engagements as well as those of their descendants last a whole life long between the19 th and 20 th century. The men they were, what they did, the men they became and the memory they left must be examined from a more general point of view so that we can find out what guided them throughout their life

No âmbito do Mestrado em Marketing Digital da Universidade Europeia, desenvolvi o presente Relatório de Projeto, de modo a consolidar os conhecimentos adquiridos durante o Mestrado e estágio na SmartLinks, onde tive a possibilidade de aplicar os saberes académicos adquiridos de forma prática e imersiva. Este relatório divide-se, em primeiro lugar, numa Introdução onde se explora e se detalha o trabalho no seu todo; seguidamente uma Revisão Literária abordando os conceitos essenciais necessários para um melhor entendimento sobre a temática – SEO; a Caracterização da agência e o seu funcionamento, como também a descrição das minhas funções dentro do departamento de SEO; uma proposta Metodológica com especial ênfase nos métodos de recolha de dados e na sua respetiva análise; as Intervenções e respetivos resultados; a Discussão dos resultados e por fim, a Conclusão com as minhas considerações finais. Deste modo, este trabalho apresenta os argumentos de como o SEO – Otimização para motores de busca - é tão importante no momento de posicionamento de determinadas páginas no Google e como é possível atingir os resultados desejados e superar a concorrência.<br>The following work is based on a Project Report that solidifies the knowledge obtained both during my master’s degree and my internship at SmartLinks, offering me the opportunity to apply all the academic skills acquired in a more practical and profound way. This report consists on: an Introduction which aims to present the analysis made throughout the remaining paper; a Literature Review which approaches valuable concepts and research works regarding the main topic – SEO; an Agency Characterization where I explain both how the firm operates its business as well as my functions on the SEO department; a Methodology Proposal focusing on the methods selected, on the data collection and on the analysis of the results; the Interventions and Results of the experiment; a results Discussion; and lastly a Conclusion with some final remarks. Finally, this work provides arguments on why SEO – Search Engine Optimization – is fundamental when ranking certain pages on Google, and therefore, how one can achieve its desired outcomes and have a better competitive position.

Como acto final do Mestrado em Marketing na Escola de Negócios Católica do Porto, este projeto foi realizado na ad-tech da empresa JustPremium para responder à pergunta: "Como pode o SEO melhorar o ranking de um website no SERP?". As estratégias implementadas pelas empresas para competir no mundo digital de hoje devem começar com uma análise abrangente do comportamento do seu consumidor. Especificamente, um website deve ser construído tendo em mente os potenciais clientes, pois é o equivalente a um cartão de visita para uma empresa no mundo digital. Manter o website actualizado e tentar melhorar o seu desempenho nos motores de busca é da maior importância para as empresas. O objetivo deste estudo foi analisar o processo de SEO da JustPremium, bem como o desempenho do seu website. Isto foi feito com o propósito de ajudar a empresa a identificar possíveis estratégias para aumentar o tráfego orgânico qualificado para o seu website e, em última análise, conseguir uma melhor classificação nas páginas de resultados de pesquisa do Google. Considerando que a empresa em análise é uma empresa em expansão com um dos maiores mercados de media do mundo, o volume de visitantes não foi muito elevado, mas bem qualificado. Tendo em conta a direcção que a empresa tinha tomado antes deste projeto, os seus objetivos coincidiram com os deste estudo, ou seja, aumentar o conhecimento da marca, dos produtos oferecidos e aumentar os contactos com potenciais novos clientes através do site. Para a realização deste estudo, um estudo de caso foi considerado como a metodologia de investigação mais adequada. No estudo de caso, foi analisado o website da empresa e, em particular, a experiência do utilizador durante a navegação, bem como os aspectos técnicos que a caracterizam. A análise mostrou que eram necessárias melhorias no SEO on-page, uma vez que o conteúdo de algumas das páginas precisava de ser optimizado para melhorar a classificação do website no Google. Além disso, o SEO off-page foi também identificado como uma área a ser melhorada, uma vez que não estava a ser feito quase viii nenhum esforço para desenvolver a autoridade do domínio JustPremium e a sua prova social na web.<br>As the final act of the Master’s degree in Marketing at the Católica Porto Business School, this project was conducted at the ad-tech company JustPremium to answer the question: “How can SEO improve the ranking of a website on the SERP?”. The strategies implemented by companies to compete in today’s digital world should start with a comprehensive analysis of their consumer’s behavior. Specifically, a website should be built with the potential customers in mind, as it is the equivalent of a business card for a company in the digital world. Keeping the website up-to-date and trying to improve its performance on search engines is of uttermost importance for businesses. The objective of this study was to analyze the SEO process of JustPremium, as well the performance of its website. This was done with the goal of helping the company identify possible strategies for increasing qualified organic traffic to its website, and, ultimately, achieve a better ranking on Google’s search result pages. Considering that the company under analysis is scale-up company with one of the largest rich media marketplaces in the world, the volume of visitors was not very high, but well qualified. Taking into account the direction that the company had taken before this project, its objectives were coincident with those of this study; that is, to increase the awareness of the brand, of the products offered and to increase contacts with potential new customers through the website. To accomplish the purpose of this research, a case study was considered the most appropriate research methodology. The case study involved the analysis of the company’s website, and, in particular, of the user experience during navigation, as well as the technical aspects that characterize it. The analysis showed that improvements in on-page SEO were necessary, since the content of some of the pages needed to be optimized to improve the website ranking on Google. Moreover, off-page SEO was also identified as an area for x improvement, since almost no efforts were being done to develop JustPremium’s domain authority and social proof on the web.

This thesis is focussed on detailed processing of the optimization of web pages for web search engines (SEO). It describes the functionality of full text search engines considering the order of search results. The thesis also presents the most often myths and problems from the field of optimization which are supplemented by the right procedures according to the currently used methods and processes. Further on, the thesis is supplemented by the general outline of the process of optimization which is furthermore used and explained in detail in a practical case study. There is also mentioned the point on the issue of scoring the rate of return in optimiza-tion.

Hoje em dia, estima-se que a maior parte do tráfego da Internet é devido aos motores de busca, sendo que é crucial aparecer nos primeiros resultados dos motores de pesquisa. Tendo em conta esta informação, todas as marcas com presença online investem em estratégias de marketing para obter o maior número de visitas possível ao seu site. Há várias formas de trazer tráfego para o site de uma marca, sendo que as maiores diferenças nos vários tipos de tráfego são se este é pago ou não (este estudo foca-se no último tipo de tráfego). O presente relatório de estágio, integrado no Mestrado de Marketing da Universidade Católica Portuguesa, teve como principal objetivo analisar o conceito de tráfego orgânico (ou não pago), e compreender como este pode ser melhorado através do Search Engine Optimization (SEO), contribuindo, assim, para otimizar a performance do site. Para a realização deste estudo, foi selecionada uma metodologia de estudo de caso, envolvendo o estudo de uma marca reconhecida, que é cliente da empresa onde foi realizado o estágio curricular, Performics. A marca escolhida para este estudo foi a Iglo, uma marca do setor alimentar referente aos congelados, com bastante notoriedade em Portugal. Para o desenvolvimento deste estudo, foi realizada uma análise exaustiva aos dados do site relativos a 2018. Posteriormente, foi elaborada uma comparação entre o ano de análise e o ano anterior. Ao mesmo tempo, foi analisado o método habitualmente adotado pela equipa da Performics, assim como o método que foi adaptado à conta da Iglo. Tendo em conta todas as evidências apresentadas ao longo do relatório, a investigação concluiu que o SEO teve um impacto muito positivo na performance do site da marca, contribuindo para influenciar favoravelmente a interação dos consumidores com a Iglo através do seu site.<br>Nowadays, most of the Internet traffic comes from search engines, therefore, it is crucial that the brand website appears in the first results of the search engines. Having this in mind, every brand that has a website is investing in marketing strategies to attract the highest number of visits possible to their website. There are several ways to attract consumers to the website, and the big difference among them is they are related with paid traffic or not (in this study we will focus on the latter). This internship report had as main objective to analyze the concept of organic traffic (or non-paid traffic) and to understand how SEO can improve this type of traffic, and, consequently, the performance of the website. We selected a case study strategy for this study, and analyzed a well-known brand in Portugal, which is a relevant client of the company where the internship was developed. The brand chosen was Iglo, a brand from the food and frozen sector, with high brand awareness in Portugal and across Europe. In this study we analyzed data linked with Iglo’s website performance during the year of 2018, and compared this data with the data from the previous year. Besides, we analyzed the working methodology that Performics usually applies in terms of SEO, as well as the methodology specifically applied to Iglo account. The analysis of the results, allowed us to conclude that SEO had a significant positive impact on the performance of Iglo’s website, and favorably influenced the interaction of consumers with the brand’s website.

Umieszczenie grafu w książce jest definiowane przez kolejność jego wierzchołków na grzbiecie książki i przyporządkowanie jego krawędzi stronom książki tak, aby na żadnej stronie krawędzie nie przecinały się. Umieszczenie zbioru częściowo uporządkowanego (posetu) P w książce polega na umieszczeniu jego digrafu pokrycia (diagramu Hassego), z elementami zbioru P na grzbiecie tworzącymi rozszerzenie liniowe zbioru P. Problemem jest umieszczenie posetu P na możliwie najmniejszej liczbie stron. Problem liczby stron dla posetów wydaje się być znacznie trudniejszy niż dla grafów. Na dwóch stronach można umieścić graf planarny, który jest podgrafem hamiltonowskiego grafu planarnego, natomiast nie jest znana charakteryzacja posetów dających się umieści na dwóch stronach. Ponadto, każdy graf planarny można umieścić na co najwyżej czterech stronach, natomiast przypuszcza się, ze w przypadku posetów planarnych liczba stron nie jest ograniczona. Wyniki w pracy dotyczą tych dwóch problemów. W Rozdziale 4 zamieszczono algorytm do umieszczania posetów drzewiastych na jednej stronie, który tworzy ramy dla algorytmów umieszczania posetów o rozbudowanej strukturze drzewiastej. W Rozdziale 5 rozważa się klasę posetów planarnych, w których każdy blok jest cyklem. Mimo swej prostoty, dwie strony nie wystarczają do ich umieszczenia. Każdy taki poset może być umieszczony na trzech stronach i trzy strony czasem są niezbędne. Najobszerniejsza cześć pracy stanowią Rozdziały 6 i 7, poświęcone posetom N-wolnym, pojawiającym się w wielu obszarach badan nad posetami. Rozważania w tych Rozdziałach bazują na podejściu teorio-grafowym, w którym digraf pokrycia posetu N-wolnego jest interpretowany jako digraf łukowy. Podano wzór na liczbę stron dla posetów N-wolnych o strukturze drzewiastej, oszacowano liczbę stron dla dowolnego posetu N-wolnego i przedstawiono algorytm umieszczania w książce dowolnych posetów, bazujący na przekształceniu posetu do posetu N-wolnego. W Rozdziale 7 są rozważane posety planarne. Podano lokalne warunki konieczne na to, aby N-wolny poset był planarny, skąd wywnioskowano, ze N-wolne posety planarne o strukturze drzewiastej można umieścić na dwóch stronach. Ta cześć pracy zawiera najważniejszy wynik pracy, ze N-wolny poset planarny, reprezentowany przez swój do góry płaski digraf pokrycia, można umieścić na dwóch stronach. Jako dowód tego twierdzenia przedstawiono algorytm o złożoności wielomianowej i udowodniono jego poprawność. Rozważania dotyczące posetów są prowadzone w języku (di)grafów z nimi związanych oraz z wykorzystaniem technik dowodzenia i konstrukcji algorytmicznych pochodzących z teorii grafów. Niektóre wyniki były prezentowane na kilku konferencjach [39], [41], [42]. MCS 2010: 05C10, 5C62, 05C76, 05C85, 06Axx, 06A06, 06A07, 68Q25 ACM CCS: 6.2.1, 6.2.2 Słowa kluczowe: zbiór częściowo uporządkowany (poset), digraf, zbiór i digraf N-wolny, zbiór i digraf planarny, drzewo, umieszczanie posetów w książce<br>In this Thesis we deal with the book embedding problem for partially ordered sets (posets). A book embedding of a graph G consists of two assignments: the vertices of G to the spine of a book in some order and the edges of G to the pages of the book so that the edges on the same page do not intersect. In a book embedding of a poset (P; ), the covering digraph (the Hasse diagram) of P is embedded with the elements of P on the spine as a linear extension of P. The objective is to minimize the number of pages used. The page number problem for posets seems to be more challenging and difficult than for graphs. It is known that the page number equals 2 for planar graphs which are subgraphs of Hamiltonian planar graphs, but no characterization of 2-page posets is known. Moreover, each planar graph can be embedded in 4 pages and it is conjectured that the page number for planar posets is unbounded. We focus in the Thesis on these two problems. In Section 4, an algorithm for 1-page embedding of tree-posets is presented which in the next sections is extended to run for several tree-structured posets. In Section 5, one such family of planar posets – tree-combinations of cycles – is introduced. Despite the simplicity of such posets, it is shown that in general they need 3 pages. In Sections 6 and 7, which are the main parts of the Thesis, the page number problem is considered in the family of N-free posets. Such posets have been recently investigated in the connection with various problems on graphs, digraphs, and posets. Our approach is based on the interpretation of covering digraphs of N-free posets as line digraphs. The page number is determined exactly for tree-structured N-free posets and some bounds are provided for arbitrary N-free posets. Moreover a book embedding algorithm is presented for arbitrary posets which is based on transformation of posets to N-free posets. In Section 7, our attention is focused on planar posets. Necessary conditions for an N-free poset to be planar are formulated and as a consequence we show that the page number of tree-structured N-free planar posets equals 2. Then we present the main result of the Thesis which states that any N-free planar poset given as its upward plane representation (drawing) can be embedded into 2 pages. The proof of this result is fully constructive – we provide a polynomial time algorithm for such embeddings. The investigations in this Thesis are carried on in the language and terms of graphs and digraphs related to posets and we use proof and algorithmic techniques from graph theory. Some of the results were presented at combinatorial meetings [39], [41], [42]. MCS 2010: 05C10, 5C62, 05C76, 05C85, 06Axx, 06A06, 06A07, 68Q25 ACM CCS: 6.2.1, 6.2.2 Key words: partially ordered set (poset), digraph, N-free digraph and poset, planar digraph and poset, tree, page number of graphs, digraphs, and posets