This thesis aims to identify the possible origins of the peoples who immigrated into the archaeological sites of Guajilar and Lagartero, located in the upper Grijalva River Basin region in southern Chiapas, Mexico, during the Late Classic period (AD 650-900). First, I present the Late Classic burial data from both sites according to four basic descriptive criteria: burial location, grave type, burial type, and grave goods. Then, I conduct a comparative analysis of the burial practices found at these two sites based on these criteria so that patterns in burial practices can be identified. Following the comparative analysis between Guajilar and Lagartero, I then compare their burial practices to those from two sites in the southern Maya Lowlands (Altar de Sacrificios and Seibal) and those found at various sites in the Guatemala Highlands (which border the upper Grijalva River Basin region to the north and east, respectively). The analysis reveals greater similarities in burial practices with sites in the Guatemala Highlands than with those in the southern Maya Lowlands. This suggests that peoples from the Guatemala Highlands were more likely to have immigrated into Guajilar and Lagartero during the Late Classic period.

The aim of the diploma thesis was to monitor the influence of grass in feed on fatty acid content in eggs. The experiment was carried out on Lohmann Brown Classic hybrids at the age of 12 weeks. Layers were divided into five groups. The feed was enriched by a 5% drop of Trifolium pretense, Trifolium repens, Medicago sativa and Lolium perenne. The control group were fed in a diet containing color-promoting additives. The fattening took three months. Egg samples were collected at the end of the month. Feedin and the power was run ad libitum. The effect of the addition of dried plants was significantly (P < 0,05) to the color of the yolk. A statistically significant (P < 0,05) incerease in palmitic acid in eggs was recorded during the experiment in eggs produced by laying hens which were in diet containing addition of Trifolium pretense and Medicago sativa. A demonstrable increase (P < 0,05) was also observed in laying hens which were fed with a mixture enriched with Trifolium pretense in percent α-linolenic acid content.

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The afterlife is an important concept in many societies whether they are contemporary or ancient. Egypt and Oaxaca, Mexico are just two of the many cultures that took the time to find ways to ensure a successful transition into the afterlife. Each culture in the world has their own unique way of ensuring this transition. Tomb art is the common element that links the unique cultures of New Kingdom Egypt and Classic Period Oaxaca, Mexico. Each culture's tomb art has its own way of guiding the deceased into the world beyond this one. There are other common elements of the art, such as the idea of appeasement, that link the two civilizations that are thousands of miles apart as well as thousands of years apart. These commonalities can give researchers more insight on what is most important to gain access to the afterlife.

This study aims to investigate both teachers’ and students’ attitudes toward classic literature in English language classrooms. The importance of the canon in education is also examined in the study. The research was conducted in a Swedish upper secondary school and included a sample of 30 students who were studying the advanced English 6 and 7 courses and two English teachers. The research methods consisted of an online questionnaire with the students and interviews with the teachers. The data suggests that while teachers generally have positive opinions of classic literature, some students have neutral or even negative attitudes. Both teachers and students acknowledge that many students do not find classic literature interesting because they do not perceive its relevance to their lives, not because of the language, as is commonly thought. However, students and teachers agree that students think classic literature is valuable to learn about because of historical and cultural reasons.  Finally, the study discusses the need for teachers to recognize that students have different attitudes and interests, and not all of them may see the relevance of classic literature in today's classrooms.

The Late Classic Period at Kaminaljuyú is one of the most poorly understood periods of occupation, possibly because the artifacts and architecture lack the ornate decoration found in earlier periods. One of the largest and best preserved areas of the site is located in the Parque Arqueológico de Kaminaljuyú in Zone 7 of Guatemala City. A major focal point of architecture atKaminaljuyú is the Acropolis, which has been the focus of various excavations, particularly the work of Gustavo Espinoza from 1958 to 1962. Despite this research, much of the important documentation and artifacts recovered from these excavations have been lost. In 2003, Brigham Young University and colleagues from the Universidad Del Valle in Guatemala City conducted excavations near the Acropolis and Palangana in order to collect additional artifacts and create a chronology of the structures found at the park. The team also focused on studying architecture and remapping the area, hoping to recover information vital to interpreting the construction and function of the buildings found there, with a particular focus on the relationship between the occupants of Kaminaljuyú and the people living at Teotihuacán. Using ceramics collected from the Brigham Young University/ Universidad Del Valle excavations, this thesis will focus on the Late Classic period of Kaminaljuyú in order to determine the function of the Acropolis during this period. A discussion of the status of the ancient inhabitants of the Acropolis will also be included. This thesis will provide the reader with a description of Late Classic ceramics and building phases. These findings will be explained in terms of the function of the Acropolis and the status of its residents during that period. The ultimate goal of this work is to illustrate that the Acropolis was used as a residential zone during the Late Classic Period. I will also argue that the people who lived near the Acropolis probably achieved an elevated status compared to residents of other parts of Kaminaljuyú, but lacked many of the luxury goods commonly associated with elites in Mesoamerica.

Human cultures have used classic psychedelics for healing purposes for millennia, emphasizing their subjective effects. In the 21st century, research has been revived to investigate the therapeutic effects of these substances. These substances show promising results in the treatment of various mental-related disorders such as depression, post-traumatic stress disorder, and others, necessitating ethical considerations and guidelines for researchers, psychotherapists, and policymakers. The subjective effects of the psychedelic experience that these substances evoke, such as the feeling of oneness and interconnectedness, infallibility, the sense of reduced one's self-importance, the encounter with the "ultimate" reality or with God, radically distinguish them from typical psychiatric medications such as selective serotonin reuptake inhibitors (SSRIs). In their essay "Ethics and Ego Dissolution: the Case of Psilocybin", William R. Smith and Dominic Sisti argue that the special properties of psychedelics entail certain novel risks that warrant "enhanced" informed consent that is "one that is more comprehensive than what may be typical for other psychiatric medications". They emphasize the unique effects of these substances, including 1) the potential for significant personality changes, 2) the short duration of treatment, and 3) the potential for profound and transformative experiences. They highlight the importance of explicitly addressing these potential changes as part of the informed consent process to ensure patient understanding, autonomy, and well-being. This current paper substantially complements Smith and Sisti's work by discussing in more detail the differences between psychedelics and typical psychiatric medications with respect to informed consent. I first support their arguments and then further argue that there are three other critical reasons why psychedelics should not be treated like other psychiatric medications that should be considered when discussing the enhancement of informed consent and disclosure. 1) potential changes in ethical values, 2) set and setting, and 3) suggestibility. To clarify my argument, I propose a distinction between changes in worldview and ethical values induced by the psychedelic experience and emphasize their differential impact on individuals undergoing psychedelic therapy. I introduce the term "ethical limbo", characterized as a state of uncertainty or ambiguity regarding the ethical implications or consequences of a particular action, decision, or situation due to conflicting ethical values, to highlight a potential risk of the psychedelic experience that should be considered in informed consent. Finally, I address potential objections to my arguments before concluding the paper and addressing some limitations of the research.

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