Use of the Long Duration Exposure Facility's thermal measurement system for the verification of thermal models

The Long Duration Exposure Facility (LDEF) postflight thermal model predicted temperatures were matched to flight temperature data recorded by the Thermal Measurement System (THERM), LDEF experiment P0003. Flight temperatures, recorded at intervals of approximately 112 minutes for the first 390 days of LDEF's 2105 day mission were compared with predictions using the thermal mathematical model (TMM). This model was unverified prior to flight. The postflight analysis has reduced the thermal model uncertainty at the temperature sensor locations from +/- 40 F to +/- 18 F. The improved temperature predictions will be used by the LDEF's principal investigators to calculate improved flight temperatures experienced by 57 experiments located on 86 trays of the facility

Long duration exposure facility solar illumination data package

A post flight solar illumination data package was created by the LDEF thermal analysis data group in support of the LDEF science office data group. The data presented was prepared with the Thermal Radiation Analysis System (TRASYS) program. Ground tracking data was used to calculate daily orbital beta angles for the calculation of resultant fluxes. This data package will be useful in calculation of solar illumination fluent for a variety of beta angle orbital conditions encountered during the LDEF mission

INTERSYS implementation and improvement system level of satisfaction in the management and control application process for foreign students USAT

Esta investigación diseña un sistema web denominado INTERSYS, con la metodología ágil de desarrollo Scrum, para medir el nivel de satisfacción de los estudiantes extranjeros en el proceso de aplicación para realizar un intercambio en la USAT. La investigación es cuantitativa pre experimental con diseño de pre y pos prueba con un solo grupo. Se aplicó un cuestionario inicial tanto a estudiantes de intercambio como al personal de la oficina de relaciones internacionales para determinar la percepción que tienen sobre el proceso actual de aplicación. Luego estimuló a la población de estudio mediante el uso de INTERSYS, finalmente se aplicó un cuestionario final que permitió medir el nivel de satisfacción utilizando el sistema desarrollado. Se pudo determinar que la totalidad de la población bajo estudio prefiere INTERSYS frente al procedimiento actual. El personal de relaciones internacionales concuerda en que INTERYS acelera los procesos de recibir los formatos de postulación, gestionar la aceptación y la matrícula de los estudiantes

On Readout of Vibrational Qubits Using Quantum Beats

Readout of the final states of qubits is a crucial step towards implementing quantum computation in experiment. Although not scalable to large numbers of qubits per molecule, computational studies show that molecular vibrations could provide a significant (factor 2–5 in the literature) increase in the number of qubits compared to two-level systems. In this theoretical work, we explore the process of readout from vibrational qubits in thiophosgene molecule, SCCl2, using quantum beat oscillations. The quantum beats are measured by first exciting the superposition of the qubit-encoding vibrational states to the electronically excited readout state with variable time-delay pulses. The resulting oscillation of population of the readout state is then detected as a function of time delay. In principle, fitting the quantum beat signal by an analytical expression should allow extracting the values of probability amplitudes and the relative phases of the vibrational qubit states. However, we found that if this procedure is implemented using the standard analytic expression for quantum beats, a non-negligible phase error is obtained. We discuss the origin and properties of this phase error, and propose a new analytical expression to correct the phase error. The corrected expression fits the quantum beat signal very accurately, which may permit reading out the final state of vibrational qubits in experiments by combining the analytic fitting expression with numerical modelling of the readout process. The new expression is also useful as a simple model for fitting any quantum beat experiments where more accurate phase information is desired

FAIRness and Usability for Open-access Omics Data Systems

Omics data sharing is crucial to the biological research community, and the last decade or two has seen a huge rise in collaborative analysis systems, databases, and knowledge bases for omics and other systems biology data. We assessed the FAIRness of NASAs GeneLab Data Systems (GLDS) along with four similar kinds of systems in the research omics data domain, using 14 FAIRness metrics. The range of overall FAIRness scores was 6-12 (out of 14), average 10.1, and standard deviation 2.4. The range of Pass ratings for the metrics was 29-79%, Partial Pass 0-21%, and Fail 7-50%. The systems we evaluated performed the best in the areas of data findability and accessibility, and worst in the area of data interoperability. Reusability of metadata, in particular, was frequently not well supported. We relate our experiences implementing semantic integration of omics data from some of the assessed systems for federated querying and retrieval functions, given their shortcomings in data interoperability. Finally, we propose two new principles that Big Data system developers, in particular, should consider for maximizing data accessibility

When Feeling Mixed Can Be Meaningful: The Relation Between Mixed Emotions and Eudaimonic Well-Being

Whilst positive emotions benefit well-being, the role of other more complex emotional experiences for well-being is less well understood. This research therefore investigated the relationship between mixed emotions and eudaimonic well-being. A cross-sectional study (Study 1; N = 429) first demonstrated (using structural equation modelling) that mixed emotions are related to the presence of goal conflict. Importantly, it was also found that mixed emotions are positively related to eudaimonic well-being, and that one potential mechanism linking mixed emotions and eudaimonic well-being is via the search for meaning in life. Study 2 (N = 52) implemented a quasi-experiment regarding a naturally occurring meaningful life event (i.e., graduation day) and again demonstrated that mixed emotions are associated with a greater level of eudaimonic well-being. Implications of these findings include the importance of mixed emotions in the search for meaning in life, and the role of mixed emotions in goal conflict resolution