Ms. Praed. 24 - De civitate dei

Vorbesitzer: Dominikanerkloster Frankfurt am Main

Ms. Praed. 68 - Expositio in primum librum Canonis Avicennae

Vorbesitzer: Georg von Breidenbach; Dominikanerkloster Frankfurt am Main

Sächsisch Confect

Bibliograph. Nachweis: VD 17 12:672138N? od. 23: 266278Y?, Paas P-1434, Harms IV,179 (andere Ausg.). - Spottgedicht auf Tilly's Niederlage bei Leipzig, Sept. 1631

Fragm. germ. IV 15 - Abrechnungen für 'die Hantwercklewt die zu dem Marstall arbeyten'

Vorbesitzer: Gustav Freytag

Ms. lat. qu. 7 (Ausst. 39) - Divinarum institutionum libri VII

Vorbesitzer: Johann Maximilian Zum Jungen

AN EVALUATION OF THE CONSISTENCY OF IMRT PATIENT-SPECIFIC QA TECHNIQUES

To ensure the integrity of an intensity modulated radiation therapy (IMRT) treatment, each plan must be validated through a measurement-based quality assurance (QA) procedure, known as patient specific IMRT QA. Many methods of measurement and analysis have evolved for this QA. There is not a standard among clinical institutions, and many devices and action levels are used. Since the acceptance criteria determines if the dosimetric tools’ output passes the patient plan, it is important to see how these parameters influence the performance of the QA device. While analyzing the results of IMRT QA, it is important to understand the variability in the measurements. Due to the different form factors of the many QA methods, this reproducibility can be device dependent. These questions of patient-specific IMRT QA reproducibility and performance were investigated across five dosimeter systems: a helical diode array, radiographic film, ion chamber, diode array (AP field-by-field, AP composite, and rotational composite), and an in-house designed multiple ion chamber phantom. The reproducibility was gauged for each device by comparing the coefficients of variation (CV) across six patient plans. The performance of each device was determined by comparing each one’s ability to accurately label a plan as acceptable or unacceptable compared to a gold standard. All methods demonstrated a CV of less than 4%. Film proved to have the highest variability in QA measurement, likely due to the high level of user involvement in the readout and analysis. This is further shown by how the setup contributed more variation than the readout and analysis for all of the methods, except film. When evaluated for ability to correctly label acceptable and unacceptable plans, two distinct performance groups emerged with the helical diode array, AP composite diode array, film, and ion chamber in the better group; and the rotational composite and AP field-by-field diode array in the poorer group. Additionally, optimal threshold cutoffs were determined for each of the dosimetry systems. These findings, combined with practical considerations for factors such as labor and cost, can aid a clinic in its choice of an effective and safe patient-specific IMRT QA implementation.

Horizontal profiles of longwave and shortwave radiation components over sea ice near Barrow, Alaska during the 2011 melt

An integrated instrument package for measuring and understanding the surface radiation budget of sea ice is presented, along with results from its first deployment. The setup simultaneously measures broadband fluxes of upwelling and downwelling terrestrial and solar radiation (four components separately), spectral fluxes of incident and reflected solar radiation, and supporting data such as air temperature and humidity, surface temperature, and location (GPS), in addition to photographing the sky and observed surface during each measurement. The instruments are mounted on a small sled, allowing measurements of the radiation budget to be made at many locations in the study area to see the effect of small-scale surface processes on the large-scale radiation budget. Such observations have many applications, from calibration and validation of remote sensing products to improving our understanding of surface processes that affect atmosphere-snow-ice interactions and drive feedbacks, ultimately leading to the potential to improve climate modelling of ice-covered regions of the ocean. The photographs, spectral data, and other observations allow for improved analysis of the broadband data. An example of this is shown by using the observations made during a partly cloudy day, which show erratic variations due to passing clouds, and creating a careful estimate of what the radiation budget along the observed line would have been under uniform sky conditions, clear or overcast. Other data from the setup's first deployment, in June 2011 on fast ice near Point Barrow, Alaska, are also shown; these illustrate the rapid changes of the radiation budget during a cold period that led to refreezing and new snow well into the melt season.

Corporeidade indígena sob o ângulo da praxeologia

Neste estudo procumaos discutir a cororeidade indígena sob vários ângulos, incluindo a visão da praxiologia motriz. Sabemos que poucos estudos têm sido feitos sobre o corpo do indígena brasileiro e que estes muitas vezes nada propõem de novo, já que não conseguem ultrapassar certos limites, impostos pela sua própria condição de herdeiro de um pensamento que se propõe ser universalista. Alguns estudos sugerem novos elementos conceituais a serem desenvolvidos nas pesquisas de campo com populações indígenas, objetivando entender como o corpo aparece representado nas configurações ideológicas veiculadas por essas populações, sua relação com a pessoa e com as forças, espíritos e almas que povoam este e os outros "mundos" acessíveis à experiência. Logo, seu estudo tem como tarefa desvendar um corpo diferente do corpo do homem moderno, herança que se vem construindo desde a Grécia Antiga. Podemos concluir que o corpo é inegavelmente o locus em torno do qual gira a vida das sociedades indígenas brasileiras conforme comprovam estudos de inúmeros antropólogos sendo por isso considerado que para compreender adequadamente a organização social e a cosmologia de uma destas sociedades, é necessário levar-se em consideração a noção de pessoa e o lugar que o corpo humano ocupa na vida das mesmas, na visão que elas fazem de si próprias. Portanto, estudar estas sociedades é procurar nelas compreendê-las.