Teachers' instructional decisions are important for students' mathematics learning as they determine the learning opportunities for all students. This study examines teachers' decisions about the activities and tasks they choose for students' mathematics learning, the ordering and connecting of mathematics topics, and the mathematics within curricula not to cover. These decisions are referred to as curricular decisions. I also identify teachers' mathematical schemes, referred to as mathematical meanings, in relation to geometric reflections and orientation of figures and examine teachers' reasoning with their mathematical meanings as they make these curricular decisions. Additionally, based on the results of this study I identify several productive and unproductive mathematical meanings in relation to geometric reflections and orientation of figures. Describing productive mathematical meanings as providing coherence to student mathematical understanding and preparing students for future mathematics learning (Thompson, 2016). These findings can be used to better understand why teachers make the curricular decisions they do as well as help teachers identify whether or not their mathematical meanings are productive in an effort to foster productive mathematical meanings for students.

Objective: The purpose of this study is to determine if a librarybased personal digital assistant (PDA) service is a significant factor in the clinical use of PDAs at an academic medical center. Methods: Health sciences students, faculty, staff, and residents at an academic medical center were the participants. The library has serviced several thousand PDAs. This population was used as the basis for the study group. The study design is a cross-sectional study using survey methodology. The analysis was done based on age, college affiliation, and gender, and answered questions such as frequency of PDA use, usefulness of library’s PDA service, and usefulness of programs the library installed on users’ PDAs. Results: One hundred and eight people responded. Seventy-five percent of the respondents would still be PDA users, even if the library did not assist or promote the service. Almost 90% were daily PDA users. Seventy-five percent stated that they would not feel confident that they could install the software without the library’s help. Conclusions: The survey results reenforced the library’s feeling that the service fills a crucial need in the community it serves. The survey also provided information on the databases it buys, which gives the library information for future collection development.

It is well-known that Kafka had a great fascination with the possibilities and transience of the physical body, as evidenced in his various literary works. Using the theory of "the uncanny", The essay interprets and investigates how and what Kafka writes about others' bodies, as well as his own. It turns out that women's appearances are observed and commented on by Kafka to a greater extent than men. Primarily, these descriptions take on grotesque and absurd characteristics, sometimes with an element of fascination. Regarding Kafka's own body, it primarily evokes a sense of disgust in what the author sees. Linked to the essay's theory of "the uncanny”, it becomes evident throughout (clearly, in) his observations that Kafka experiences a feeling of the aforementioned "uncanny". As a conclusion to the essay, the potential of diaries used in an educational context (the classroom) is highlighted, as well as how students can benefit from reading and working with diaries to acquire skills and abilities. / <p>Slutgiltigt godkännandedatum: 2023-05-31</p>

Bakgrund: Närmare hälften av de som drabbas av cancer i Sverige är kvinnor, och vissa av dessa kvinnor är mödrar som fått diagnosen obotlig cancer. När en patient drabbats av obotlig cancer blir den palliativa vården central. De fyra hörnstenarna tillsammans med den personcentrerade modellen de 6 S:n blir grunden i hur vården kan utformas. Syfte: Examensarbetets syfte var att belysa mödrars upplevelse av att leva med obotlig cancer. Metod: En kvalitativ metod där datainsamlingen bestod av sju bloggar. En analys av narrativer användes enligt Dahlborgs modell. Resultat: Resultatet utgjordes av tre huvudkategorier; Känslan av maktlöshet, Livets oundvikliga förändring och, Leva i nuet, tillsammans med sex underkategorier. Konklusion: Obotlig cancer medförde både fysiskt och psykiskt lidande för mödrarna där de upplevde begränsningar i sin roll som mamma. Detta medförde att de existentiella tankarna och känslorna blev oundvikliga och svårhanterliga. Samtidigt visade resultatet att mödrarna fick livskraft genom förmågan att leva i nuet och reflektera kring vad som var viktigt och värdefullt för dem. Sjuksköterskor behöver vidareutveckla sin kompetens kring den personcentrerade palliativa vården för att kunna vårda och bemöta denna patientgrupp på bästa möjliga sätt. / Background: Almost half of those affected by cancer in Sweden are women, and some of these women are mothers who have been diagnosed with incurable cancer. When a patient suffers from incurable cancer, palliative care becomes central. The four cornerstones, together with the person-centered model of the 6 S's, will form the basis of how care will be designed. Aim: The purpose of the thesis was to shed light on mothers' experience of living with incurable cancer. Method: A qualitative method where the data collection consisted of seven blogs. An analysis of narratives was used according to Dahlborg's model. Findings: The results were identified by three main categories; The feeling of powerlessness, Life's inevitable change and Living in the moment, along with six subcategories. Conclusion: Incurable cancer caused both physical and psychological suffering for the mothers and they experienced limitations in their role as mothers. This meant that the existential thoughts and feelings became unavoidable and difficult to handle. At the same time, the results showed that the mothers gained vitality through the ability to live in the present and reflect on what was important and valuable to them. Nurses need to further develop their competence in person-centred palliative care in order to care for and respond to this patient group in the best possible way.

In the field of supersonic jet noise, measurements of full-scale afterburning jet engines are infrequent and provide unique opportunities to better understand jet noise phenomena. This thesis represents a phenomenological jet noise analysis using far-field noise data collected from a T-7A-installed GE F404-103 turbofan engine. One issue with the far-field acoustic data from the T-7A was the effects of ground reflections present in the spectra generated from the measured waveforms. A previously developed ground reflection model was implemented into the data to account for this interference. This work represents the first time this model has been implemented in data collected from a full-scale aircraft. Spectra and spatiospectral maps are used to show that, while imperfect, this model represents a step in the right direction for accounting for ground reflections. From the ground reflection-corrected data, sound power values were calculated at varying engine powers. These values were compared against mechanical power values calculated using provided engine parameters at the corresponding engine conditions. It is shown that the observed increase in sound power with mechanical power at supersonic engine conditions follows classical jet noise theory, while the increase between transonic engine conditions is much greater than predicted by classical jet noise theory. This divergence is currently unexplained. Finally, far-field noise directivity measured from the T-7A is connected back to both physics-based and empirically derived definitions of the convective Mach number, a dimensionless parameter used to describe the velocities of coherent structures in the turbulent mixing layer of a jet. For supersonic jets, where Mach wave radiation is the dominant noise source, the convective Mach number should be useful for predicting peak directivity angles. The evaluated definitions show that the convective Mach number associated with Kelvin-Helmholtz instability waves best predicts the peak directivity of the T-7A.

No description available.

This degree project, “Ripples,” explores the dynamic interplay of reflections in urban environments, focusing on how natural elements like puddles can transform the spatial experience and perception within these settings. Situated within the field of spatial design, this project emphasizes the potential of reflective surfaces to enrich urban spaces, making them more engaging and adaptable to environmental changes. The importance of “Ripples” lies in its ability to enhance urban livability and ecological awareness by integrating artfully designed reflective elements into everyday spaces. This approach addresses contemporary challenges such as increased rainfall and climate change, demonstrating how design can play a crucial role in urban sustainability and resilience. The project was conducted through a series of experiments and installations in diverse settings, including the Telefonplan tunnel and a controlled exhibition space at Konstfack. Using phenomenological methods alongside practical tools such as walking analyses and sensory observations, the project explored the effects of reflections caused by different materials and lighting conditions. Artistic interpretations through watercolour painting were also employed to conceptualize reflections abstractly, further enriching the study. Conclusions from “Ripples” suggest that thoughtful design interventions can significantly alter public engagement and enhance spatial perception, making everyday environments not only more aesthetically pleasing but also more responsive to human emotions and environmental factors. The project’s implications extend into future design practices, advocating for the integration of reflective surfaces in urban planning to foster environments that are not only functional but also inspirational, paving the way for a reflective future in urban design.

No description available.

Cette thèse s'inscrit dans la lignée des travaux sur la prédiction du champ électromagnétique réfléchi par les bâtiments en milieu urbain. Nous avons développé une méthode de prédiction basée sur la Surface Équivalente Radar (SER) pour le traitement spécifique des bâtiments situés en zone lointaine. Contrairement aux méthodes classiques de lancer et le tracé de rayons où les réflexions sont traitées rayons par rayons, notre approche utilise la SER global d'un ensemble de bâtiments pour décrire la réflectivité des scènes. Le champ électrique est ensuite reconstruit au point de réception à partir de cette SER. La méthode de calcul est analytique et essentiellement basée sur la combinaison de l'optique géométrique (OG) et du calcul de l'intégrale de Kirchhoff-Huygens. Les interactions multiples de l'onde entre les bâtiments sont également prises en compte dans le modèle proposé. Les résultats obtenus en termes de précision de prédiction dans les directions spéculaires et non-spéculaires sont très satisfaisants. Les temps de calcul n'excédent pas 5 secondes pour les scénarios les plus complexes simulés ; ils permettent ainsi de réduire les temps de calcul et de surmonter les contraintes en place mémoire lors de l'étude d'une scène urbaine. Dans une seconde étude, l'influence des irrégularités des façades sur le champ électromagnétique diffracté a été évaluée. Nous utilisons la méthode des moments (MoM) bidimensionnelles (2D) pour résoudre de façon rigoureuse le problème de diffraction lié à trois types de façades : façade plane, façade corruguée et façade avec des balcons. A partir de la distribution du champ diffracté en zone proche et des diagrammes de rayonnement des façades en zone lointaine, nous décrivons les différents mécanismes de diffraction qui s'y produisent et les directions de réflexion prépondérantes sont données pour chacune des façades. Les travaux présentés dans cette thèse s'inscrivent dans le cadre du projet ANR OP2H (Outil de Prédiction par navigation Hiérarchique et Homogénéisation de matériaux) / The motivation of this dissertation is to propose an efficient approach for the prediction of the electromagnetic field scattered from a set of buildings in urban area. Unlike the ray tracing and ray lanching methods where the reflection mechanics are treated building by building, the proposed approach uses the radar cross section (RCS) as a global quantity to describe the reflection by a set of buildings and to predict the scattered field at the receiver position. An analytical expression is obtained to model building scattering using the vector form of Kirchhoff-Huygens integral and the geometrical optics (GO) method, and the multiple reflections between building facades are taken into account. The model is applied on various buildings configurations and accurate results are obtained in the predominant scattering directions with simulation times inferior to five seconds for the most complex scenarios. Since our approach is compatible to the classical methods based on ray techniques or the radiation of surface currents, it can be useful to accelerate the existing softwares. The second part of this thesis is devoted to the study of the influence of building facade irregularities such as balconies. As the complexity of these facades is incompatible with the use of asymptotic methods, the rigorous method of moments (MoM) has been chosen to determine the scattered field from these façades. The field distribution in the near zone of the facades as well as the radiation patterns in the far zone have been considered. It appears that single and second order reflections are the main scattering mechanisms for these facades. We also show that from a certain distance from the facade, the corrugated facade can be used as a simplified equivalent model for the facade with balconies. This thesis is supported by the French ANR project OP2H

0 autor apresenta o desenvolvimento da Administração, pontuando as contribuições mais importantes das teorias administrativas que compõem a Teoria Geral da Administração. Tece considerações a respeito do trabalho administrativo do enfermeiro, indicando que suas ações ainda são pautadas segundo princípios da Administração Científica, da Escola Clássica e da Teoria da Burocracia. Buscando conhecer se a produção científica tem acompanhado a evolução da administração, esta investigação teve como objetivos verificar a utilização e a identificação das teorias administrativas que fundamentaram a produção em enfermagem nesta temática. Trata-se de unia pesquisa bibliográfica exploratória focada num periódico brasileiro de enfermagem. Os resultados indicaram que de um total de 681 artigos publicados no periódico mencionado, 8,66% concentram-se na temática em análise. Conclui-se que a Teoria Comportamental seguida de referenciais da Liderança Situacional são as mais utilizadas pelos autores e que, dentre as teorias administrativas identificadas nos artigos estudados, a Teoria Comportamental e a Teoria de Sistemas foram as mais freqüentes. / The author prescrits the development of Administration, pointing out the most important contributions made by the adm.,nistrative theories that mdke up General Administration Theory. Reflections are made on nurses' administrative work, indicating that their actions are still guided by principles of Scientific Administration, the Classical School and the Theory of Bureaucracy. With a view to discovering whether scientific prodwtion has accompanied the evolution in the field of administration, this research aimed to verify the tise and identification of administrative theories that grounded nursing production on this therne. This exploratory and bibliographic research focuses on a Brazilian nursing periodical. The results indicated that 8.66% of the 681 articles published in this periodical concentrated on the therne area under analysis. lt is concluded that the theory authors use most is Behaviorial Theory, followed by Situational Leadership reference frameworks. Among the administrative theories identified in the articles that were studied, Behavioral and Systems Theory were most frequent.