A comparison of surface sensible and latent heat fluxes from aircraft and surface measurements in FIFE 1987

Surface fluxes of sensible and latent heat over a tall-grass prairie in central Kansas, as measured by 22 surface stations during FIFE 1987, are compared with values gained indirectly by linear extrapolation of aircraft-measured flux profiles to the surface. The results of 33 such comparisons covering the period 26 June to 13 October 1987 indicate that the sensible heat flux profiles were generally more linear with less scatter in the measurements at each level than were the latent heat flux profiles, the profile extrapolations of sensible heat flux in general underestimate the surface averages by about 30 percent, with slightly better agreement during periods of small flux, and the profile extrapolations of latent heat flux in general underestimate the surface averages by about 15 percent, with overestimates during periods of small fluxes (dry conditions) and overestimates during periods of large fluxes (moist conditions). Possible origins of the differences between the two sets of measurements are discussed, as directions for further research

An airborne study of microwave surface sensing and boundary layer heat and moisture fluxes for Project FIFE

This is the third semiannual status report describing the University of Wyoming participation in project FIFE, under NASA Grant NAG 5-913. The reader is referred to the first and second semiannual status reports for this grant for descriptions of University of Wyoming participation in the field operations of 1987. This report is concerned with continuing analysis of field data. Most of the instrument calibration effort has concentrated on interpretation and use of the high-rate water vapor measurements with the University of Wyoming Lyman-alpha device. In addition, fluxes of water vapor have been corrected for sensible heat flux, and all the high-rate (10 Hz for the Wyoming King Air) data have been filtered before the flux calculations. For each flight the Lyman-alpha data (10 Hz) are calibrated against the Cambridge dew-point hygrometer (1 Hz), by using data from the take-off sounding. The reasoning here is that the takeoff sounding (held to 500 fpm rate-of-climb specifically for the calibration) covers the widest range of humidity conditions of any sequence of the flight. For each takeoff sounding, then, the Lyman-alpha data, averaged to 1 Hz, are matched to the dewpoint data with a second-order least-squares fit. The resulting quadratic equation is then used in all subsequent analyses to convert the Lyman-alpha voltages to vapor desities for that specific flight. An alternative method is to use the range of fluctuation for the same two devices from horizontal passes to establish the calibration function. However, since the Lyman-alpha data are used only in the flux calculations, i.e., only the fluctuation and not the absolute values are used, this method is thought unnecessary

Recent Cases

Antitrust Law--Clayton Act--Statistics of Market Concentration and Increased Market Share are Insufficient to Show Violation of Section 7 When Other Factors Mandate a Conclusion that Competition will not be Substantially Lessened by the Contested Acquisition -- Preservation of a large number of marginal competitors does not necessarily result in the optimum level of competition, and size per se is not illegal\u27 and should not be equated with anticompetitive effect. Seemingly, the competitive objectives of antimerger law have been infused with a theory characterized by socio-political feelings of hostility towards large, integrated corporations contrasted with friendliness toward small, independent business units . The Court has in the recent past attempted to preserve these social and political values by applying the simplest available criteria in antimerger cases-statistics demonstrating a decreasing number of competitors and an increasing market share in the hands of a few. In the instant opinion, however, the Court has returned its emphasis to a method of analysis characterized by an examination of the relevant economic factors and a consideration of statistical data of market structure, a seemingly desirable result since it represents a realization that only through a wide-ranging economic inquiry can the Court realistically assess and regulate economic and market behavior for the benefit of the public. ========================= Criminal Procedure--Federal Habeas Corpus -- A Writ of Habeas Corpus May Be Issued in Advance of Trial to Prevent Double Jeopardy When a Juvenile Has Been Previously Adjudicated a Delinquent Petitioner was adjudicated a delinquent and committed to a juvenile institution by a state juvenile court after his arrest on a charge of rape and subsequently was indicted by a grand jury for the same offense. The state criminal court dismissed the indictment on the ground that it subjected petitioner to double jeopardy, but the appellate level reversed, holding that the juvenile court judge should have waived jurisdiction and certified the case to criminal court pursuant to state statutes. The State Supreme Court affirmed the appellate decision and ordered the indictment reinstated. Alleging that his prosecution under the indictment would violate the double jeopardy clause of the fifth amendment and transgress fundamental fairness concepts of the fourteenth amendment, petitioner sought a writ of habeas corpus to terminate his physical custody, which had been prolonged because of the indictment. Rejecting the State\u27s arguments that petitioner had not exhausted state remedies and that jeopardy did not attach in juvenile adjudications, the United States District Court for the Middle District of Florida declared further prosecution unconstitutional and granted a writ of habeas corpus compelling petitioner\u27s release., On appeal to the United States Court of Appeals for the Fifth Circuit, held, affirmed

The Effects of Rotation and River Discharge on Net Mixing in Small-Mouth Kelvin Plumes

Small-mouth Kelvin number plumes, or plumes with a source width smaller than the deformation radius, are characterized by near-field plume regions of rapid lateral expansion and strong vertical mixing. Net plume mixing, or the dilution of a plume by ocean water between the estuary mouth and the far-field plume, is examined using idealized numerical experiments with the Regional Ocean Modeling System (ROMS). The density anomaly of plume water entering the far field is determined from isohaline analysis of the modeled salinity field. The experiments indicate that when estuarine discharge increases, net plume mixing decreases in a rotating environment but increases in a nonrotating environment. Scaling analysis supports that this opposite trend in behavior is related to rotation turning the plume, limiting the lateral expansion and suppressing shear mixing. The results of this study explain different trends in net plume mixing reported in previous studies and compare favorably to observations of the Fraser River plume

Teaching and Learning Los Angeles through Engagement with UCLA Library Special Collections

This article presents a case study of how library services and special collections, in particular, can be integrated into undergraduate education by engaging strategically with a high-impact area of the curriculum and concentrating on courses related thematically to collection strengths. The goals of such engagement include enhancing student academic success and increasing the visibility and use of library services and collections. During the academic year 2012-2013, the UCLA Library\u27s Teaching and Learning Services and Library Special Collections partnered with the Division of Undergraduate Education\u27s Freshman Cluster Program to experiment with embedding librarians into instructional teams in order to improve students\u27 research skills. In “Los Angeles: The Cluster,” a year-long, interdisciplinary course focused on the history, architecture, and culture of Los Angeles, librarians collaborated with faculty and graduate student teaching assistants to incorporate primary sources, especially rare and unique cultural heritage materials, into the undergraduate curriculum. In this article, Kelly Miller provides an overview of the library’s partnership with the Freshman Cluster Program, and Robert Montoya describes his experience as an embedded librarian in the LA Cluster

Inspiration for the Future: The Role of Inspiratory Muscle Training in Cystic Fibrosis.

Cystic fibrosis (CF) is an inherited, multi-system, life-limiting disease characterized by a progressive decline in lung function, which accounts for the majority of CF-related morbidity and mortality. Inspiratory muscle training (IMT) has been proposed as a rehabilitative strategy to treat respiratory impairments associated with CF. However, despite evidence of therapeutic benefits in healthy and other clinical populations, the routine application of IMT in CF can neither be supported nor refuted due to the paucity of methodologically rigorous research. Specifically, the interpretation of available studies regarding the efficacy of IMT in CF is hampered by methodological threats to internal and external validity. As such, it is important to highlight the inherent risk of bias that differences in patient characteristics, IMT protocols, and outcome measurements present when synthesizing this literature prior to making final clinical judgments. Future studies are required to identify the characteristics of individuals who may respond to IMT and determine whether the controlled application of IMT can elicit meaningful improvements in physiological and patient-centered clinical outcomes. Given the equivocal evidence regarding its efficacy, IMT should be utilized on a case-by-case basis with sound clinical reasoning, rather than simply dismissed, until a rigorous evidence-based consensus has been reached

Partner choice, relationship satisfaction, and oral contraception: the congruency hypothesis

Hormonal fluctuation across the menstrual cycle explains temporal variation in women’s judgment of the attractiveness of members of the opposite sex. Use of hormonal contraceptives could therefore influence both initial partner choice and, if contraceptive use subsequently changes, intrapair dynamics. Associations between hormonal contraceptive use and relationship satisfaction may thus be best understood by considering whether current use is congruent with use when relationships formed, rather than by considering current use alone. In the study reported here, we tested this congruency hypothesis in a survey of 365 couples. Controlling for potential confounds (including relationship duration, age, parenthood, and income), we found that congruency in current and previous hormonal contraceptive use, but not current use alone, predicted women’s sexual satisfaction with their partners. Congruency was not associated with women’s nonsexual satisfaction or with the satisfaction of their male partners. Our results provide empirical support for the congruency hypothesis and suggest that women’s sexual satisfaction is influenced by changes in partner preference associated with change in hormonal contraceptive use