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1

Sense and clinical sensibility.  

PubMed

I call attention to the metapsychology of sense, and the role sense plays-phenomenologically and symbolically-in the life of the clinician and the group. Each group member asserts influence in taking a role as the perceiver and the perceived, the senser and the sensed. We reach for sense, for without sense reference, we cannot grasp or even talk about psychic reality. It serves as sign and symbol, as metaphor, analogy, illustration, and model. Sense fixes experience yet may fixate experience and interfere with developing abstract thoughts. Clinical vignettes illustrate how the leader may utilize his or her particular clinical sensibility to reach the group and focus attention, to link sense to psychic qualities: to the personality of the members, the group culture and process, and the live clinical interaction. PMID:24004010

Billow, Richard M

2013-10-01

2

ALMIDÓN MODIFICADO DE YUCA COMO SUSTITUTO ECONÓMICO DEL AGENTE SOLIDIFICANTE PARA MEDIOS DE CULTIVO DE TEJIDOS VEGETALES  

Microsoft Academic Search

SUMMARY Plant tissue culture methodologies were developed five dec- ades ago. However, expensive reagents and faulty technology transfer have prevented farmers in developing countries to ben- efit from these techniques. In Venezuela, cassava (Manihot esculenta Crantz) is a neglected crop harvested by poor farmers in marginal areas. Several constraints plot against large scale cassava cultivation, but the most important ones

Gustavo Romay; Juan Matehus; Armando Gerstl; Rodrigo Rueda; María A. Santana

2006-01-01

3

SOBRE LA FRACTURA DEL TEJIDO ÓSEO  

Microsoft Academic Search

Resumen. En este trabajo se presentan dos modelos para la predicción de fracturas óseas debidas respectivamente a sobrecargas no fisiológicas y a cargas fisiológicas actuantes sobre un tejido degradado. En lo que se refiere al primero, se plantea un criterio de fractura desde un punto de vista de Mecánica de Medios Continuos, es decir, macroscópico, pero incluyendo la dependencia de

M Doblaré; J. M García-Aznar; M. J. Gómez-Benito

4

Epistemic Sensibility: Third Dimension of Virtue Epistemology  

ERIC Educational Resources Information Center

The author tries to argue how epistemic sensibility as virtue sensibility can complement virtue epistemology. Many philosophers interrelated virtue reliabilism (e.g., Brogaard, 2006) and virtue responsibilism (e.g., Code, 1987) to virtue epistemology as two dimensions with many diverging and a few converging characters. The possible new dimension…

Belbase, Shashidhar

2012-01-01

5

Direct computation of the sensible heat flux.  

USGS Publications Warehouse

An algorithm to determine the sensible heat flux from simple field measurements (wind speed, air and ground temperatures) has been developed. It provides a direct solution, in parametric form, which can be displayed graphically or tabularly. -from Author

Watson, K.

1980-01-01

6

Urban Signatures: Sensible Heat Flux (WMS)  

NSDL National Science Digital Library

Big cities influence the environment around them. For example, urban areas are typically warmer than their surroundings. Cities are strikingly visible in computer models that simulate the Earths land surface. This visualization shows sensible heat flux predicted by the Land Information System (LIS) for a day in June 2001. (Sensible heat flux refers to transfer of heat from the earths surface to the air above; for further explanation see http:--www.uwsp.edu-geo-faculty-ritter-geog101-textbook-energy-energy_balance.html). Sensible heat flux is higher in the cities--that is, they transfer more heat to the atmosphere--because the surface there is warmer than in the surroundings. Only part of the global computation is shown, focusing on the highly urbanized northeast corridor in the United States, including the cities of Boston, New York, Philadelphia, Baltimore, and Washington.

Delabeaujardiere, Jeff

2005-05-27

7

How do children develop their aesthetic sensibility?  

Microsoft Academic Search

Purpose – The objective of this research is to understand how children develop their aesthetic sensibility. This question will be examined using modern art pictures and logos. Design\\/methodology\\/approach – The study refers to a qualitative method based on interviews with children aged 7 to 12. A total of 24 children were questioned. In order to reinforce the corpus, the authors

Pascale Ezan; Joëlle Lagier

2009-01-01

8

Computational systems, responsibility, and moral sensibility  

Microsoft Academic Search

We can identify three areas of interaction between our understanding of computer systems and moral and spiritual issues: (a) the moral and technical issues involved in empowering computer systems in contexts with significant impact, direct or indirect, on human well-being; (b) the scientific\\/technical questions in the way of introducing an explicit moral sensibility into computer systems; (c) the theological insights

Henry S Thompson

1999-01-01

9

Observations on human tactile directional sensibility.  

PubMed

1. The ability to tell the direction of a motion across the skin deserve attention for being an easily observed function which provides a sensitive test for disturbances of the peripheral and central nervous systems. The mode of operation, on the other hand, of this tactile directional sensibility is still uncertain. 2. The dependence of directional sensibility on the contact load and distance of movement of a blunt metal tip, has now been determined for the skin of the forearm of normal subjects with the two-alternative forced-choice method. The testing was done under two conditions: elbow bent or straight. Straightening of the arm always reduced the accuracy of the directional sensibility. It also caused measurable changes of cutaneous mechanical properties, which presumably decreased the reliability of afferent information about lateral distension. 3. The average accuracy of the directional sensibility was found to be correlated linearly to the logarithm of the contact load, and straightening of the arm decreased the accuracy for each load by corresponding amounts. Similar relationships were found between the accuracy and the distance of movement. 4. Straightening of the arm did not cause any significant average reduction of the contact threshold for point stimulation of the same receptive field. A consistently lowered contact sensitivity, however, was observed for some of the subjects, which may have contributed to the reduction of the directional sensibility in these cases. 5. Correct directional estimations of the movement of the metal tip were obtained for a distance which was a fifth of the shortest distance for a corresponding estimation of the movement of a frictionless stimulus. The findings thus indicated that the friction between a moving object and the underlying skin, which can be mediated via stretch-sensitive cutaneous receptors, is critical for the determination of its direction of motion. 6. The present observations and previous observations by various authors are suggested to indicate that typical tactile directional sensibility depends on parallel processing of direction-selective data, and spatial data expressed as a function of time. PMID:8229817

Olausson, H; Norrsell, U

1993-05-01

10

Observations on human tactile directional sensibility.  

PubMed Central

1. The ability to tell the direction of a motion across the skin deserve attention for being an easily observed function which provides a sensitive test for disturbances of the peripheral and central nervous systems. The mode of operation, on the other hand, of this tactile directional sensibility is still uncertain. 2. The dependence of directional sensibility on the contact load and distance of movement of a blunt metal tip, has now been determined for the skin of the forearm of normal subjects with the two-alternative forced-choice method. The testing was done under two conditions: elbow bent or straight. Straightening of the arm always reduced the accuracy of the directional sensibility. It also caused measurable changes of cutaneous mechanical properties, which presumably decreased the reliability of afferent information about lateral distension. 3. The average accuracy of the directional sensibility was found to be correlated linearly to the logarithm of the contact load, and straightening of the arm decreased the accuracy for each load by corresponding amounts. Similar relationships were found between the accuracy and the distance of movement. 4. Straightening of the arm did not cause any significant average reduction of the contact threshold for point stimulation of the same receptive field. A consistently lowered contact sensitivity, however, was observed for some of the subjects, which may have contributed to the reduction of the directional sensibility in these cases. 5. Correct directional estimations of the movement of the metal tip were obtained for a distance which was a fifth of the shortest distance for a corresponding estimation of the movement of a frictionless stimulus. The findings thus indicated that the friction between a moving object and the underlying skin, which can be mediated via stretch-sensitive cutaneous receptors, is critical for the determination of its direction of motion. 6. The present observations and previous observations by various authors are suggested to indicate that typical tactile directional sensibility depends on parallel processing of direction-selective data, and spatial data expressed as a function of time. Images Fig. 1

Olausson, H; Norrsell, U

1993-01-01

11

TOXICIDAD DE ACEITES, ESENCIAS Y EXTRACTOS VEGETALES EN LARVAS DE MOSQUITO CULEX QUINQUEFASCIATUS SAY (DIPTERA: CULICIDAE)  

Microsoft Academic Search

Se evaluaron 51 especies de plantas del estado de Oaxaca, México; 39 como extractos acuosos al 5 y 15% y 21 al 25%, y como extractos acetónicos tres especies con cinco dosis (0.1, 0.01, 0.001, 0.0001 y 0.00001%). Además de ocho aceites vegetales a tres dosis (0.1, 0.01 y 0.001%) y 11 esencias vegetales comerciales con cuatro dosis (0.1, 0.01,

Rafael PÉREZ-PACHECO; Cesáreo RODRÍGUEZ HERNÁNDEZ; Joel LARA-REYNA; Roberto MONTES BELMONT; Gustavo RAMÍREZ VALVERDE

12

Human Sensibility Ergonomics Approach to Vehicle Simulator Based on Dynamics  

Microsoft Academic Search

Simulators have been used to evaluate drivers' reactions to various transportation products. Most research, however, has concentrated on their technical performance. This paper considers driver's motion perception on a vehicle simulator through the analysis of human sensibility ergonomics. A sensibility ergonomic method is proposed in order to improve the reliability of vehicle simulators. A simulator in a passenger vehicle consists

Kwon Son; Kyung-Hyun Choi; Ji-Sup Yoon

2004-01-01

13

Sensible and Latent Heat Losses from Occupants of Survival Shelters.  

National Technical Information Service (NTIS)

Six figures have been prepared showing the sensible and latent heat exchange rates from clothed and nude individuals at various environmental conditions and at three metabolic rates. Data are also included by which the heat exchange rates for the 'standar...

C. M. Humphreys A. Henschel D. H. K. Lee

1966-01-01

14

Human Sensibility Ergonomics Approach to Vehicle Simulator Based on Dynamics  

NASA Astrophysics Data System (ADS)

Simulators have been used to evaluate drivers' reactions to various transportation products. Most research, however, has concentrated on their technical performance. This paper considers driver's motion perception on a vehicle simulator through the analysis of human sensibility ergonomics. A sensibility ergonomic method is proposed in order to improve the reliability of vehicle simulators. A simulator in a passenger vehicle consists of three main modules such as vehicle dynamics, virtual environment, and motion representation modules. To evaluate drivers' feedback, human perceptions are categorized into a set verbal expressions collected and investigated to find the most appropriate ones for translation and angular accelerations of the simulator. The cut-off frequency of the washout filter in the representation module is selected as one sensibility factor. Sensibility experiments were carried out to find a correlation between the expressions and the cut-off frequency of the filter. This study suggests a methodology to obtain an ergonomic database that can be applied to the sensibility evaluation of dynamic simulators.

Son, Kwon; Choi, Kyung-Hyun; Yoon, Ji-Sup

15

Sensible heat receiver for solar dynamic space power system  

NASA Technical Reports Server (NTRS)

A sensible heat receiver considered in this study uses a vapor grown carbon fiber-carbon (VGCF/C) composite as the thermal storage media and was designed for a 7 kW Brayton engine. The proposed heat receiver stores the required energy to power the system during eclipse in the VGCF/C composite. The heat receiver thermal analysis was conducted through the Systems Improved Numerical Differencing Analyzer and Fluid Integrator (SINDA) software package. The sensible heat receiver compares well with other latent and advanced sensible heat receivers analyzed in other studies while avoiding the problems associated with latent heat storage salts and liquid metal heat pipes. The concept also satisfies the design requirements for a 7 kW Brayton engine system. The weight and size of the system can be optimized by changes in geometry and technology advances for this new material.

Perez-Davis, Marla E.; Gaier, James R.; Petrefski, Chris

1991-01-01

16

Sensible heat receiver for solar dynamic space power system  

NASA Technical Reports Server (NTRS)

A sensible heat receiver is considered which uses a vapor grown carbon fiber-carbon (VGCF/C) composite as the thermal storage medium and which was designed for a 7-kW Brayton engine. This heat receiver stores the required energy to power the system during eclipse in the VGCF/C composite. The heat receiver thermal analysis was conducted through the Systems Improved Numerical Differencing Analyzer and Fluid Integrator (SINDA) software package. The sensible heat receiver compares well with other latent and advanced sensible heat receivers analyzed in other studies, while avoiding the problems associated with latent heat storage salts and liquid metal heat pipes. The concept also satisfies the design requirements for a 7-kW Brayton engine system. The weight and size of the system can be optimized by changes in geometry and technology advances for this new material.

Perez-Davis, Marla E.; Gaier, James R.; Petrefski, Chris

1991-01-01

17

Heat-transfer coefficients in agitated vessels. Sensible heat models  

Microsoft Academic Search

Transient models for sensible heat were developed to assess the thermal performance of agitated vessels with coils and jackets. Performance is quantified with the computation of heat-transfer coefficients by introducing vessel heating and cooling data into model equations. Of the two model categories studied, differential and macroscopic, the latter is preferred due to mathematical simplicity and lower sensitivity to experimental

Enio Kumpinsky

1995-01-01

18

Bringing an Ethnographic Sensibility to Service-Learning Assessment  

ERIC Educational Resources Information Center

This paper explores the methodological implications of applying an ethnographic sensibility to evaluation in service-learning. It describes the evolution of such a method over the past 10 years within the Citizen Scholars Program at the University of Massachusetts, and outlines what we have learned from employing this method, as well as the…

Polin, Deborah Keisch; Keene, Arthur S.

2010-01-01

19

What Develops in Moral Development? A Model of Moral Sensibility  

ERIC Educational Resources Information Center

The field of moral psychology would benefit from an integrative model of what develops in moral development, contextualized within the larger scope of social science research. Moral sensibility is proposed as the best concept to embody stated aims, but the content of this concept must be more finely articulated and conceptualized as a dynamic…

Sherblom, Stephen A.

2012-01-01

20

Gauss-Laguerre modes: a ``sensible'' basis for laser dynamics  

Microsoft Academic Search

Modal decomposition of a system of partial differential equations is a useful analytical and numerical tool. In particular, it is often desirable to describe complex spatio-temporal behaviours by restricting the analysis to the interaction of few suitably chosen modes. We show how the Gauss-Laguerre modes have this property for many laser states, and are thus a ``sensible'' basis onto which

Giampaolo D'Alessandro; Gian-Luca Oppo

1992-01-01

21

Surface sensible heat flux upscaling: examples from Alpilles in France  

NASA Astrophysics Data System (ADS)

Surface sensible heat flux upscaling is performed with an aggregation model with input of airborne optical and thermal remote sensing observations, high-resolution satellite observations, radiosounding observations and Arpège met-model data. Firstly the aggregation model results are compared to sensible heat flux field observations in various crops during the growing season in 1997 at the Alpilles site in Southern France; secondly the results are given at a kilometric scale. The upscaling is from 20 m to 1000 m resolution. The values upscaled are the surface sensible heat flux and the roughnesses for momentum and temperature, , and , respectively. All values are so-called effective values taking explicit account of non-linearity in the turbulent response function for every roughness step change between patches in the landscape as a function of wind direction and atmospheric stability. The local roughness for momentum (z0m) is assigned to each land cover type, whereas the local roughness for temperature (zot) is calculated iteratively from the momentum roughness and leaf area index (LAI) depend upon land cover type. The ratio between the upscaled roughness values are no longer proportional. The ratio is compared and discussed (in view of the kB-1). Finally the kilometric momentum roughness and NDVI values are intercompared. The aggregation model is a two-dimensional atmospheric flow model in the horizontal domain and the flow equations are linearized and solved with Fast Fourier Transform. The model is computationally fast, yet provide a sound link between surface fluxes of momentum and sensible heat from point observations to larger scales.

Hasager, C. B.; Olioso, A.; Jensen, N. O.

22

Evaluation of breast sensibility using dermatomal somatosensory evoked potentials.  

PubMed

This study was undertaken to prospectively evaluate breast sensibility before and after reduction mammaplasty with a new, objective, and quantitative neurophysiologic method based on the anatomic knowledge of breast innervation and the congruent areas of dermatomal maps. An innovative application of dermatomal somatosensory evoked potentials was used to study the breast regions of 42 healthy women, bilaterally. The areas stimulated in each breast were the superior quadrant, the nipple-areola complex and the medial and lateral quadrants, and the inferior quadrant; these areas correspond to T3, T4, and T5 dermatomes, respectively, following the accepted concepts of segmentary innervation of the skin. The two groups of 21 patients each were formed according to breast size: group I comprised small-breasted, unoperated controls (brassiere cup size A or B); group II comprised macromastia patients (brassiere cup size C or greater) who presented to a general plastic surgery department for breast reduction surgery. First the authors established the normal range of latency and amplitude in the dermatomal somatosensory evoked potentials for the five areas stimulated in patients with small breasts and compared these parameters with those obtained from patients with macromastia. Then, after the macromastia patients underwent reduction mammaplasty using the McKissock technique, the authors compared the postoperative sensory values with their own preoperative values and with those from the small-breasted group. Using dermatomal somatosensory evoked potentials, they found that small breasts were statistically more sensitive than large breasts, which concurs with studies in the literature that use other methods to evaluate breast sensibility. They also found that after breast reduction, the macromastia patients presented statistically significant improvement in breast sensibility in relation to their own preoperative latency and amplitude values, with no statistical difference in amplitude with respect to the small-breasted group; this finding suggests that after breast reduction, sensibility similar to that of the small-breasted group can be considered a possibility. Furthermore, in comparisons of each of the five areas stimulated, there was no significant difference in values within the small-breasted group or within the macromastia group before or after surgery; this supports a possible overlap between adjacent dermatomes. This innovative application of dermatomal somatosensory evoked potentials is an objective, quantitative, and noninvasive method that has allowed the authors to evaluate breast sensibility and to compare postsurgical sensory outcomes. PMID:15253186

DelVecchyo, Carlos; Caloca, Jaime; Caloca, Jaime; Gómez-Jauregui, Jesica

2004-06-01

23

Sensible Quantum Mechanics:. are Probabilities Only in the Mind?  

NASA Astrophysics Data System (ADS)

Quantum mechanics may be formulated as Sensible Quantum Mechanics (SQM) so that it contains nothing probabilistic except conscious perceptions. Sets of these perceptions can be deterministically realized with measures given by expectation values of positive-operator-valued awareness operators. Ratios of the measures for these sets of perceptions can be interpreted as frequency-type probabilities for many actually existing sets. These probabilities generally cannot be given by the ordinary quantum “probabilities” for a single set of alternatives. Probabilism, or ascribing probabilities to unconscious aspects of the world, may be seen to be an aesthemamorphic myth.

Page, Don N.

24

Estimation of sensible heat flux from remotely sensed canopy temperatures  

NASA Technical Reports Server (NTRS)

Temperatures of tallgrass priarie vegetation were measured with infrared thermometers (IRT) at different view zenith and azimuth angles. The optimum IRT view zenith angle for estimating sensible heat fluxes (H) was determined by comparing H estimated with eddy correlation and/or Bowen ratio techniques to H calculated by a method suggested by Hatfield et al. (1984). For wind speeds of 5 m/s or greater, H estimated with surface temperatures measured at a 0 deg or 20 deg view zenith angle gave the best agreement, but for wind speeds of less than 4 m/s the best estimate of H was made with surface temperatures measured at a 40 deg or 60 deg view zenith angle.

Vining, R. C.; Blad, B. L.

1992-01-01

25

Estimation of sensible heat flux from remotely sensed canopy temperatures  

NASA Astrophysics Data System (ADS)

Temperatures of tallgrass prairie vegetation were measured with infrared thermometers (IRT) at different view zenith and azimuth angles. The optimum IRT view zenith angle for estimating sensible heat fluxes (H) was determined by comparing H estimated with eddy correlation and/or Bowen ratio techniques to H calculated by a method suggested by Hatfield et al. (1984). For wind speeds of 5 m s-1 or greater, H estimated with surface temperatures measured at a 0° or 20° view zenith angle gave the best agreement, but for wind speeds of less than 4 m s-1 the best estimate of H was made with surface temperatures measured at a 40° or 60° view zenith angle.

Vining, R. C.; Blad, B. L.

1992-11-01

26

Novel sensible thermal storage material from natural minerals  

NASA Astrophysics Data System (ADS)

Novel sensible thermal storage materials (TSM) were first synthesized via thermally treating the green compact obtained using clay, kaolin tailings, and hematite as major raw materials. The samples were characterized using differential scanning calorimetry and thermogravimetric, X-ray diffraction, thermal conductivities, petrography analysis, Fourier transformation infrared spectroscopy, and scanning electron microscopy. The thermal conductivity of the green compact reached 1.11-1.64 W m-1 K-1 after thermally treated at 200-1,000 °C. The clay component was proven to have a predominant effect on the thermal conductivity of the green compact. Kaolin tailings could act as a "modulator" for adjusting the thermal conductivity from 1.42 to 1.92 W m-1 K-1. Affecting mechanism of microstructural change of main components during sintering on thermal conductivity of TSM was prominently investigated. TSM could provide a potential candidate for thermal energy storage systems of concentrated solar power.

Li, Chuanchang; Ouyang, Jing; Yang, Huaming

2013-10-01

27

Sensible and latent heating of the atmosphere as inferred from DST-6 data  

NASA Technical Reports Server (NTRS)

The average distribution of convective latent heating, boundary layer sensible heat flux, and vertical velocity are determined for the winter 1976 DST period from GLAS model diagnostics. Key features are the regions of intense latent heating over Brazil, Central Africa, and Indonesia; and the regions of strong sensible heating due to air mass modification over the North Atlantic and North Pacific Oceans.

Herman, G. F.; Schubert, S. D.; Johnson, W. T.

1979-01-01

28

Reforming the Politics of Sensibility: George Orwell, Kurt Vonnegut, Tim Dorsey, & the Narrative of Social Inaction  

Microsoft Academic Search

Reforming the Politics of Sensibility: George Orwell, Kurt Vonnegut, Tim Dorsey & the Narrative of Social Inaction maintains that key narrative modes in Twentieth Century political fiction are indebted to earlier manifestations in Eighteenth and Nineteenth Century modes of sensibility in British fiction, and are likewise confronted by the socio-historical politics of these modes. These novels, stretching across time and

Emily Joan Dowd

2006-01-01

29

Artistic Sensibility in the Studio and Gallery Model: Revisiting Process and Product  

ERIC Educational Resources Information Center

This paper examines the cultivation of artistic sensibility and its impact on the art therapy process and product in a community mental health center. Artistic sensibility embodies the sense of self as an artist through the integration of artistic and aesthetic attributes of self and other. The formation of a gallery to exhibit patient art was…

Thompson, Geoffrey

2009-01-01

30

Development of composite latent/sensible heat storage media  

NASA Astrophysics Data System (ADS)

Results of an on-going program to develop a composite latent-sensible thermal energy storage medium, trade marked CompPhase, are presented. The target application area was periodic kiln energy recovery. The concept is that of a composite salt/ceramic material processed such that the medium maintains its shape and mechanical integrity through the salt melting temperature. As such, the media can be fabricated into a variety of shapes suitable for packed beds, fluidized beds, or direct contact heat exchangers. The properties of ten carbonate salt or eutectic mixtures of carbonate salts were reviewed to select the most appropriate candidates for development. Three salts and two ceramic materials were evaluated in laboratory tests to select the final material, a composite of sodium-barium eutectic/magnesium oxide, for development. Two methods of processing the constituent powders for fabrication into storage pellets were developed, and one method was applied to pellet fabrication by commercial processing equipment. Two different preliminary cost estimates bracketed the expected cost of commercially fabricating storage pellets. Also, two modifications to the material processing method were suggested to reduce costs. Thermal cycling was conducted on laboratory produced experimental pellets and on prototype pellets fabricated by commercial processes. Detailed laboratory tests to determine composite mechanical and thermal properties were conducted. It is concluded that further laboratory, field, and economic studies are required before the concept of composite storage media can be considered fully developed for commercialization.

Petri, R.; Ong, E. T.; Kardas, A.

1990-12-01

31

Sensible and latent heat flux estimates in Antarctica  

NASA Technical Reports Server (NTRS)

The assumption has been made that the net annual contribution of water by the processes of deposition and sublimation to the Antarctic Ice Sheet is zero. The U.S. Antarctic Program started installing reliable automatic weather stations on the Antarctic Continent in 1980. The initial units were equipped to measure wind speed, wind direction, air pressure, and air temperature. During the 1983-1984 field season in Antarctica, three units were installed that measured a vertical air temperature difference between the nominal heights of 0.5 m and 3.0 m and relative humidity at a nominal height of 3 m. The measurements of the vertical air temperature difference and the relative humidity are the minimum required to estimate the sensible and latent heat fluxes to the air, while not exceeding the available energy requirements for the weather stations. The estimates of the net annual sublimation and deposition on the Ross Ice Shelf amount to 20 to 80 percent of the annual accumulation. We conclude that the assumption that annual sublimation and deposition are zero is not valid under Antarctic conditions.

Stearns, Charles R.; Weidner, George A.

1993-01-01

32

Advances in Sensible Heat Balance Characterization of Soil Water Evaporation  

NASA Astrophysics Data System (ADS)

Soil water evaporation intimately couples the hydrological cycle with the land-surface energy balance, making it an important driver for a wide range of terrestrial processes. To date, few methods have been available characterize soil water evaporation in detail, which has, in turn, limited capability to predict soil water evaporation processes in local and large scale models. Recent work has developed a measurement-based soil sensible heat balance (SHB) approach, capable of quantifying evaporation time and depth dynamics at a vertical scale of millimeters, near the soil surface. The SHB approach does not require detailed characterization or estimation of soil hydraulic properties, which has been a limitation in previous work. Rather it utilizes detailed measurements of the soil temperature profile and soil thermal properties from heat-pulse sensors in order to derive evaporation front dynamics. Laboratory experiments indicate that the SHB approach is precise to within <10% of independent mass balance measurements. Field tests indicate that the SHB is well correlated to lysimeter and Bowen ratio measurement approaches for bare surface conditions. Using SHB, laboratory and field experiments have characterized migration of the soil water evaporation front during multi-day drying events, and linked the shift between potential evaporation and falling rate evaporation to changes in soil surface albedo and soil moisture.

Heitman, J.; Xiao, X.; Deol, P. K.; Horton, R.; Ren, T.

2013-05-01

33

Regional differences in surface sensible and latent heat fluxes in China  

NASA Astrophysics Data System (ADS)

This study documents the variability of surface sensible and latent heat fluxes in five regions of China (Northwest China, the Tibetan Plateau, Northeast China, North China, and Southeast China) using the ERA-40 reanalysis for the years 1960-2000. The surface sensible and latent heat flux variations are remarkably different in Northwest and Southeast China. The seasonal variation of the surface sensible heat fluxes is largest in Northwest China and smallest in Southeast China. In contrast, the seasonal variation in latent heat flux is largest in Southeast China and smallest in Northwest China. The interdecadal variation of surface sensible and surface latent heat fluxes strongly depends on both the region and season. The trends in surface sensible and latent heat fluxes in all four seasons are mainly caused by variations in both the land-air temperature difference and in the specific humidity. There is also a limited contribution of wind speed in some regions, depending on the season.

Zhou, Lian-Tong; Huang, Ronghui

2014-05-01

34

Human, tactile, directional sensibility and its peripheral origins.  

PubMed

Tactile directional sensibility is probably functionally important and deserves attention as it is known to be sensitive to many different disturbances of the somatosensory system. Therefore, the ability of healthy adults to determine the direction of motion of a light tactile stimulus travelling proximally or distally along a straight line on depilated, hairy skin of the forearm was examined with two-alternative, forced-choice technique. The aim was to investigate the relative importance of different types of afferent information which may be used for this purpose. A test was started with the moving stimulus covering a distance of no less than 2.5 mm, which was subsequently increased until the subject could report the direction of motion reliably. Afterwards, the distance was decreased until the subject could no longer do so. Three different stimulation conditions were used and for a point stimulator touching the skin it was found that the necessary distance decreased to 2.5 mm after a moderate increase of the vertical contact load. No such decrease was found when a frictionless air-stream point stimulator was used instead. The distances which had to be covered by the point stimulator touching the skin increased to values which were comparable to those obtained with the air-stream stimulator after the lateral extensibility of the skin had been diminished. This was achieved by attaching a surgical sticky plaster around the stimulated skin area. The present findings consequently indicated that optimal, tactile, directional sensitivity depends on peripheral afferent messages which signal the direction of lateral stretching of the skin. PMID:1575049

Norrsell, U; Olausson, H

1992-02-01

35

Sensible energy policy does not include a variable import fee  

SciTech Connect

Energy analysis has become unfashionable. The millions of dollars and professional hours devoted to fashioning solutions to the US energy problems in the late 1970s have disappeared with little trce. With world oil selling below $20 per barrel, there is little or no interest in alternatives to petroleum, or even in R and D on alternatives. Current apathy suggests that the USA is capable of only two modes of operation: Throw money at perceived crises, knowing it is being spent foolishly, or ignore any problem that ceases to be a perceived crises. Energy policy seems to be thought of these days as bailing out the oil billionaires and the Texas banks and savings and loan situations. When mature, consenting adults spend years trying to bring something about, one should allow them to enjoy the fruits of their labor - as long as it is within the law. Thus, the author assumes that Singer's proposal is not to be justified on the grounds of pulling these chestnuts out of the fire. Rather, Singer puts it forth on the grounds that it will contribute to sensible energy policy. Unfortunately, the variable import fee (VIF) is seriously flawed and the supporting arguments are contradictory or unsupported. In order to evaluate a proposal such as Singer's VIF, one has to be clear on the objectives and time frame. Others and the author agree that at any date, there is a supply curve for domestic petroleum that rises with price. There are stripping well secondary and tertiary recovery all waiting, and drillers willing to bring in new wells; the higher the price, the more oil will flow from these sources.

Lave, L.B. (Carnegie-Mellon Univ., Schenley Park, Pittsburgh, PA (US))

1988-01-01

36

Second Law Optimization of a Sensible Heat Thermal Energy Storage System with a Distributed Storage Element.  

National Technical Information Service (NTIS)

This numerical study defined the behavior of a sensible heat thermal energy storage system whose physical design and operation had been optimized to minimize the production of thermodynamic irreversibilities. It included the effects of transient conductio...

M. J. Taylor

1986-01-01

37

Relationship between loss of pedal sensibility, balance, and falls in patients with peripheral neuropathy.  

PubMed

: The purpose of this study was to describe the relationship between balance and foot sensibility in a population of patients with impaired lower extremity sensation. The hypothesis was that increasing impairment of sensation correlates with impaired balance. To date, no report has investigated the relationship between loss of balance with the degree of sensibility in the foot in a population with neuropathy. Ten control subjects and 35 patients with sensory abnormalities and balance problems related to a neuropathy were evaluated. The MatScan Measurement System was used to measure their ability to stand still, maintaining their balance with their eyes open and then with their eyes shut. The degree to which the person moves while attempting to stand still is defined as "sway," which was recorded for normal and neuropathy patients. Sensibility of the foot was measured with the Pressure-Specified Sensory Device, which is noninvasive and nonpainful. The 1- and 2-point static touch thresholds are measured for the pulp of the big toe, medial heel, and the dorsum of the foot. Loss of 2- or 1-point sensation was recorded as sensibility score and compared with controls. Statistical analysis of data and their comparisons for the 2 groups was completed. There were 55% females in control and 64% in neuropathy patients, whereas average age was 50 and 62 years, respectively. Neuropathy was the result of diabetes in 64.5%, hypothyroidism in 19.3%, their combination in 13%, and of unknown etiology in the remaining 19% of patients. Controls had significantly lower mean sway than neuropathy patients (22.9 +/- 9% vs. 189.5 +/- 180%, P = 0.006). Likewise, sensibility score for normal and neuropathy patients was also significantly different (31.4 +/- 9% vs. 232.8 +/- 59%, P <0.0001). When compared with the controls, 99% upper limit of confidence, sensibility in the neuropathy group at the hallux pulp was abnormal at a level consistent with axonal loss in 52% and was completely absent in the remaining 48%. Similarly, at the heel, sensibility was normal in 6.5%, abnormal at a level consistent with axonal loss in 71%, and absent in the remaining 22.5%. The correlation coefficient between sway and sensibility score was 0.36. The results of this investigation for the first time document the intuitive relationship between increasing loss of foot sensibility and increasing loss of balance. These measurements can now be used prospectively to evaluate whether restoration of sensation to patients with neuropathy, through peripheral nerve decompression, can improve balance and reduce falls/fractures in this patient population. PMID:15166971

Ducic, Ivica; Short, Kelly W; Dellon, A Lee

2004-06-01

38

Differences in atmospheric convection caused by waste energy rejected in the forms of sensible and latent heats  

NASA Astrophysics Data System (ADS)

The relative ability of continuous sensible and latent heat perturbations to initiate atmospheric convection is studied using numerical simulation. In three experiments a given amount of energy is rejected as (a) all sensible heat, (b) all latent heat, and (c) half sensible and half latent heat. With equal heat flux density, sensible heat is much more likely to initiate convective circulations and anomalous cloudiness than latent heat. These findings indicate that to the extent that the potential for cloud initiation is a factor in the choice, wet cooling towers are preferable to dry ones for the rejection of large quantities of heat.

Koenig, L. Randall; Murray, Francis W.; Tag, Paul M.

39

A Bayesian approach to estimate sensible and latent heat over vegetation  

Microsoft Academic Search

Sensible and latent heat fluxes are often calculated from bulk transfer equations combined with the energy balance. For spatial estimates of these fluxes, a combination of remotely sensed and standard meteorological data from weather stations on the ground is used. The success of this approach depends on the accuracy of the input data and on the accuracy of two variables

C. van der Tol; S. van der Tol; A. Verhoef; B. Su; J. Timmermans; C. Houldcroft; A. Gieske

2009-01-01

40

SEBAL-based sensible and latent heat fluxes in the irrigated Gediz Basin, Turkey  

Microsoft Academic Search

Surface Energy Balance Algorithm for Land (SEBAL) is a relatively new parameterization of surface heat fluxes based on spectral satellite measurements. SEBAL requires spatially distributed, visible, near-infrared and thermal infrared data, which can be taken from Landsat Thematic Mapper. The SEBAL parameterization is an iterative and feedback-based numerical procedure that deduces the radiation, heat and evaporation fluxes. The sensible and

W. G. M Bastiaanssen

2000-01-01

41

Discussion on calculation methods of sensible heat flux during GAME/Tibet in 1998  

NASA Astrophysics Data System (ADS)

Based on previous research on sensible heat flux, we investigate it from different aspects using GAME/Tibet data measured during 6 June-13 September, 1998. This work consists of the derivation of the surface heat flux equation, analysis on counter-gradient heat transference, comparison between two different methods to compute the sensible heat flux, and investigation on the calculation scheme of sensible heat flux in the Simple Biosphere model 2 (SiB2) with relevant simulation. By improving two previous formulations, an integrated formulation for calculating surface heat flux is given. Secondly, using the measured data, the counter-gradient heat flux is clarified, leading to the fact that buoyancy plays an important role in the sensible heat transfer process. It is concluded that (1) energy imbalance is a common phenomenon resulting from the use of the traditional closure scheme on the heterogeneous underlying surface because the measured ensemble heat fluxes by eddy correlation contain the effect of nonlocal parcel movements; and (2) nonlocal parcel movement deserves more attention in any future heat flux study.

Gao, Z. Q.; Bian, L. G.; Wang, J. X.; Lu, L. G.

2003-05-01

42

Carbon dioxide, water vapor and sensible heat fluxes over a tallgrass prairie  

Microsoft Academic Search

Fluxes of CO2, water vapor and sensible heat were measured in a grassland ecosystem near Manhattan, Kansas, employing the eddy correlation technique. The vegetation at this site is dominated by big bluestem ( Andropogon gerardii), switchgrass ( Panicum virgatum), and indiangrass ( Sorghastrum nutans). Diurnal patterns of the energy budget components and CO2 fluxes are evaluated on a few selected

Shashi B. Verma; Joon Kim; Robert J. Clement

1989-01-01

43

Carbon dioxide, water vapor and sensible heat fluxes over a tallgrass prairie  

Microsoft Academic Search

Fluxes of CO2, water vapor and sensible heat were measured in a grassland ecosystem near Manhattan, Kansas, employing the eddy correlation technique. The vegetation at this site is dominated by big bluestem (Andropogon gerardii), switchgrass (Panicum virgatum), and indiangrass (Sorghastrum nutans). Diurnal patterns of the energy budget components and CO2 fluxes are evaluated on a few selected days. Influence of

Shashi B. Verma; Joon Kim; Robert J. Clement

1989-01-01

44

Phonics, Spelling, and Word Study: A Sensible Approach. The Bill Harp Professional Teachers Library Series.  

ERIC Educational Resources Information Center

This concise book shares several sensible, logical, and meaningful approaches that guide young children to use the written coding system to read, spell, and make meaning of the English language coding system. The book demonstrates that phonics, spelling, and word study are essential parts of literacy learning. After an introduction, chapters are:…

Glazer, Susan Mandel

45

The partitioning between latent and sensible heat flux at FLUXNET sites  

NASA Astrophysics Data System (ADS)

The partitioning between ecosystem latent (LE) and sensible (H) heat fluxes is critical for understanding the hydrological cycle, predicting boundary layer development, weather and climate. The FLUXNET network provides a unique opportunity to investigate the partitioning of latent and sensible heat fluxes at the surface over a broad range of vegetation types and climates. This paper focuses on two aspects of surface flux partitioning at more than 20 sites worldwide. The first focus is on the relative partitioning between latent and sensible heat fluxes, or the Bowen ratio, during the warm season. We investigate the Bowen ratio across vegetation types and climates, and suggest controlling climatological and ecological factors. The surface resistance, which is related to the ability of the vegetation to supply available water and is one factor controlling the Bowen ratio, was generally lower at the agricultural and deciduous forest sites compared to coniferous forests. The ratio of the atmospheric humidity deficit to the net radiation (proportional to the climatological resistance), a second important factor controlling the Bowen ratio, was generally lower at sites near large bodies of water or over tundra vegetation, and was greater at more continental sites. The second focus of the study is on the diurnal trends of latent and sensible heat fluxes. We quantify the diurnal pattern of turbulent energy fluxes using the `diurnal centroid', which is an indicator of whether the fluxes peak in the morning or afternoon. The diurnal centroid provides useful signatures of important physiological and climatological factors that control surface fluxes. These factors include stomatal closure, advection, atmospheric stability and vegetation height. Sites with tall vegetation and/or high wind speeds in continental regions with limited affects of advection, a stable and dry atmosphere and weak stomatal sensitivity to atmospheric humidity deficits or water potential tend to have late diurnal peaks in latent heat flux relative to sensible heat flux. Alternatively, sites with short vegetation, prominent advection from maritime sources, a weakly stable and moist atmosphere and a strong stomatal sensitivity to humidity deficit or water potential will have earlier peaks in latent heat flux relative to sensible heat flux.

Wilson, K. B.

2001-12-01

46

Sensible Success  

NASA Technical Reports Server (NTRS)

Commercial remote sensing uses satellite imagery to provide valuable information about the planet's features. By capturing light reflected from the Earth's surface with cameras or sensor systems, usually mounted on an orbiting satellite, data is obtained for business enterprises with an interest in land feature distribution. Remote sensing is practical when applied to large-area coverage, such as agricultural monitoring, regional mapping, environmental assessment, and infrastructure planning. For example, cellular service providers use satellite imagery to select the most ideal location for a communication tower. Crowsey Incorporated has the ability to use remote sensing capabilities to conduct spatial geographic visualizations and other remote-sensing services. Presently, the company has found a demand for these services in the area of litigation support. By using spatial information and analyses, Crowsey helps litigators understand and visualize complex issues and then to communicate a clear argument, with complete indisputable evidence. Crowsey Incorporated is a proud partner in NASA's Mississippi Space Commerce Initiative, with research offices at the John C. Stennis Space Center.

2001-01-01

47

A Three Component Model to Estimate Sensible Heat Flux Over Sparse Shrubs in Nevada  

USGS Publications Warehouse

It is now recognized that accurate partitioning of available energy into sensible and latent heat flux is crucial to understanding surface-atmosphere interactions. This issue is more complicated in arid and semi-arid regions where the relative contribution to surface fluxes from the soil and vegetation may vary significantly throughout the day and throughout the season. The objective of this paper is to present a three-component model to estimate sensible heat flux over heterogeneous surfaces. The surface was represented with two adjacent compartments. The first compartment is made up of two components, shrubs and shaded soil; the second compartment consists of bare, unshaded soil. Data collected at two different sites in Nevada during the summers of 1991 and 1992 were used to evaluate model performance. The results show that the present model is sufficiently general to yield satisfactory results for both sites.

Chehbouni, A.; Nichols, W. D.; Njoku, E. G.; Qi, J.; Kerr, Y. H.; Cabot, F.

1997-01-01

48

Spatial cues serving the tactile directional sensibility of the human forearm.  

PubMed

1. Tactile directional sensibility is considered to rely on the parallel processing of direction-contingent sensory data that depend on skin stretching caused by friction, and spatial cues that vary with time. A temperature-controlled airstream stimulus that prevented the activation of stretch receptors was used to investigate directional sensibility for the skin of the forearm. 2. The dependence on contact load and distance of movement was determined for normal subjects with a two-alternative forced-choice method. Testing was performed under two conditions, elbow bent or straight. Bracing the skin by straightening the arm did not alter the accuracy of the directional sensibility, in contrast to previous findings with stimuli that caused friction. 3. The accuracy of directional sensibility was correlated linearly to the logarithm of the distance of movement of the air jet. No correlation was found between accuracy and contact load, unlike findings with stimuli that cause friction. 4. Measurements were made with different subjects to determine the threshold distance at constant load. On average, subjects were able to distinguish direction with movements of < or = 8 mm. This acuity is sharper than has been reported with static stimuli. There was no correlation between subjects' threshold distances for judging direction and spatial acuity measured with absolute point localization. 5. The ability to distinguish direction was poor for the airstream stimulus compared with stimuli causing frictional contact with hairy skin. Nevertheless, the present findings are consistent with the suggestion that cutaneous spatial acuity is better for dynamic than for static stimuli. PMID:7965863

Norrsell, U; Olausson, H

1994-08-01

49

Über quantitative Unterschiede in der Wirkung der Lokalanästhetika auf sensible und motorische Nerven  

Microsoft Academic Search

Zusammenfassung 1.Es wird die Wirkung einer größeren Anzahl von Lokalanästhetika auf das «sensible Nervenpräparat» und das Nerv-Muskelpräparat untersucht. Kokain, Tropakokain, Tutokain, Psikain, Novokain, Eukain, Alypin, zwei neue Präparate, Präparat C 147 und 1112, ferner Stovain und Kaliumsulfat.2.In 12- und 24stündigen Versuchen, also bei Ausschaltung der Zeit als Versuchsfaktor, wird im allgemeinen der Reflex am sensiblen Nervenpräparat durch geringere Konzentrationen unterdrückt,

H. Boeminghaus; M. Kochmann

1929-01-01

50

Nueva opción de tratamiento para mujeres jóvenes con cáncer de seno sensible a las hormonas  

Cancer.gov

Un fármaco usado para el tratamiento del cáncer de seno (mama), conocido como exemestano, es más eficaz que tamoxifeno, un fármaco preventivo de uso común para el cáncer de seno, en la prevención de la recidiva del cáncer de seno en mujeres jóvenes que también reciben tratamiento posoperativo para suprimir el funcionamiento ovárico. Los resultados de este estudio se presentaron en mujeres que tenían un tipo de cáncer de seno en estadio inicial sensible al tratamiento hormonal.

51

Nearly steady convection and the boundary-layer budgets of water vapor and sensible heat  

NASA Astrophysics Data System (ADS)

The budgets of water vapor and sensible heat in the convective atmospheric boundary (mixed) layer are analyzed by means of a simple slab approach adapted to steady large-scale advective conditions with radiation and cloud activity. The entrainment flux for sensible heat is assumed to be a linear function of the surface flux. The flux of water vapor at the top of the mixed layer is parameterized by extending the first-order Betts-Deardorff approach, i.e., by adopting linear changes for both the specific humidity and the flux across the mixed layer and across the inversion layer of finite thickness. In this way the dissimilarity of sensible heat and water vapor transport in the mixed layer can be taken into account. The experimental data were obtained from the Air Mass Transformation Experiment (AMTEX). The entrainment constant for sensible heat at the top of the mixed layer was found to have values similar to those observed in other weakly convective situations, i.e., around 0.4 to 0.6. This appears to indicate that the effect of mechanical turbulence was not negligible; however, the inclusion of this effect in the formulation did not improve the correlation. In contrast to the first-order approach, the zero-order approach, i. e., the jump equation commonly used for the flux of a scalar at the inversion, (ovw'c' ) h = we ?c (where w e is the entrainment velocity and ? c the concentration jump across the inversion), was found to be invalid and incapable of describing the data.

Brutsaert, Wilfried

1987-05-01

52

Cervicocephalic kinesthetic sensibility and postural balance in patients with nontraumatic chronic neck pain - a pilot study  

PubMed Central

Background Although cervical pain is widespread, most victims are only mildly and occasionally affected. A minority, however, suffer chronic pain and/or functional impairments. Although there is abundant literature regarding nontraumatic neck pain, little focuses on diagnostic criteria. During the last decade, research on neck pain has been designed to evaluate underlying pathophysiological mechanisms, without noteworthy success. Independent researchers have investigated postural balance and cervicocephalic kinesthetic sensibility among patients with chronic neck pain, and have (in most cases) concluded the source of the problem is a reduced ability in the neck's proprioceptive system. Here, we investigated cervicocephalic kinesthetic sensibility and postural balance among patients with nontraumatic chronic neck pain. Methods Ours was a two-group, observational pilot study of patients with complaints of continuous neck pain during the 3 months prior to recruitment. Thirteen patients with chronic neck pain of nontraumatic origin were recruited from an institutional outpatient clinic. Sixteen healthy persons were recruited as a control group. Cervicocephalic kinesthetic sensibility was assessed by exploring head repositioning accuracy and postural balance was measured with computerized static posturography. Results Parameters of cervicocephalic kinesthetic sensibility were not reduced. However, in one of six test movements (flexion), global repositioning errors were significantly larger in the experimental group than in the control group (p < .05). Measurements did not demonstrate any general impaired postural balance, and varied substantially among participants in both groups. Conclusion In patients with nontraumatic chronic neck pain, we found statistically significant global repositioning errors in only one of six test movements. In this cohort, we found no evidence of impaired postural balance. Head repositioning accuracy and computerized static posturography are imperfect measures of functional proprioceptive impairments. Validity of (and procedures for using) these instruments demand further investigation. Trial registration Current Controlled Trials ISRCTN96873990

Palmgren, Per J; Andreasson, Daniel; Eriksson, Magnus; Hagglund, Andreas

2009-01-01

53

Sensible heat flux - Radiometric surface temperature relationship for eight semiarid areas  

NASA Technical Reports Server (NTRS)

Measurements of sensible heat flux, radiometric surface temperature, air temperature, and wind speed made at eight semiarid rangeland sites were used to investigate the sensible heat flux-aerodynamic resistance relationship. The individual sites covered a wide range of vegetation (0.1-4 m tall) and cover (3%-95% bare soil) conditions. Mean values of k/B, a quantity related to the resistance of heat versus momentum transfer at the surface, for the individual sites varied between 3.5 and 12.5. A preliminary test of the utility of an excess resistance based on the mean value of k/B showed that the difference between the mean estimated and measured sensible heat fluxes varied +/- 60 W/sq m for the eight semiarid sites. For the eight sites the values of k/B were plotted against the roughness Reynolds number. The plot showed considerable scatter with values ranging between and beyond the theoretical curves for bluff rough and permeable rough surfaces.

Stewart, J. B.; Kustas, W. P.; Humes, K. S.; Nichols, W. D.; Moran, M. S.; De Bruin, H. A. R.

1994-01-01

54

Sensibility and taste alterations after impacted lower third molar extractions. A prospective cohort study  

PubMed Central

Objectives: To determine the incidence, severity and duration of lingual tactile and gustatory function impairments after lower third molar removal. Study Design: Prospective cohort study with intra-subject measures of 16 patients undergoing lower third molar extractions. Sensibility and gustatory functions were evaluated in each subject preoperatively, one week and one month after the extraction, using Semmes-Weinstein monofilaments and 5 different concentrations of NaCl, respectively. Additionally, all patients filled a questionnaire to assess subjective perceptions. Results: Although patients did not perceive any sensibility impairments, a statistically significant decrease was detected when Semmes-Weinstein monofilaments. This alteration was present at one week after the surgical procedure and fully recovered one month after the extraction. There were no variations regarding the gustatory function. Conclusions: Lower third molar removal under local anesthesia may cause light lingual sensibility impairment. Most of these alterations remain undetected to patients. These lingual nerve injuries are present one week after the extraction and recover one month after surgery. The taste seems to remain unaffected after these procedures. Key words:Lingual nerve, third molar, nerve injury, paresthesia, surgical extraction

Ridaura-Ruiz, Lourdes; Valmaseda-Castellon, Eduard; Berini-Aytes, Leonardo; Gay-Escoda, Cosme

2012-01-01

55

Elastic Analysis of Anisotropic BEAMS Sensitive to Transverse Shear Analyse Elastique des Poutres Anisotropes Sensibles au Cisaillement Transversal.  

National Technical Information Service (NTIS)

The stresses, strains, and displacements in homogeneous orthotropic beams, sensible to transverse shear and subjected to transverse loads were analyzed using the problem of short beam bending test as an example. The approach involved splitting the origina...

C. Phang

1979-01-01

56

Improved sensible and latent heat flux estimation of community land model by using ensemble Kalman filter assimilation  

NASA Astrophysics Data System (ADS)

Accurate estimation of variability of the surface heat fluxes is very important in the hydrological, meteorological, and agricultural applications. Community land model (CLM) may be used to continuously predict the temporal and spatial sensible and latent heat flux, however, its output is contaminated by uncertainties of the model's parameters, model structure and forcing data. The aim of this paper is to improve the sensible and latent heat flux prediction of CLM by using data assimilation schemes with Ensemble Kalman Filter (EnKF) algorithm. The data assimilation results are compared against eddy-covariance observations collected at three sites (Arou, Guantan and Yingke) in the northwest of China including grassland, forestland, and cropland cover types. The CLM usually overestimates the sensible heat flux while underestimates the latent heat flux at the three observation sites. The comparison results indicate that data assimilation method improves the estimation of surface sensible and latent heat fluxes from the model, with clear reduction in the resulting uncertainty of estimated fluxes. The average reductions in the RMSE and MAE values of all sites are 40.62 and 25.83 W/m2 while the average decline of MAE values were 33.80 and 26.92 W/m2 for sensible and latent heat fluxes, respectively, while the most significant reductions in the RMSE values are 67.70 and 30.40 W/m2 for sensible and latent heat flux with EnKF algorithm, respectively. Although this study clearly implies that the assimilation of sensible and latent heat fluxes EnKF algorithm has the potential to improve the surface heat fluxes predictions of CLM, further research is required to make definitive conclusions when assimilation of sensible and latent heat fluxes derived from real remote sensing data into CLM. Furthermore, the good approximation of the model and measurement errors and the assimilation multi-source data simultaneously into the CLM may produce better results.

Liu, Chaoshun; Shu, Shijie; Gao, Wei

2013-09-01

57

Evaluation of the profile and the resistance method for estimation of surface fluxes of momentum, sensible and latent heat  

NASA Astrophysics Data System (ADS)

Hourly lysimetric and micrometeorological data taken over a grass surface at the Meteorological Research Unit, Cardington U.K. have been analysed. A temperature difference and measurements of wind speed at only one height, combined with an independently estimated effective roughness length allowed sensible heat and momentum fluxes determination by the profile method on an hourly basis. The estimates are compared with direct measurements of sensible heat and friction velocity obtained by the eddy correlation method. The sensible and latent heat fluxes are also modelled by the resistance method. Equations based on the Monin—Obukhov similarity theory are used to account for stability effects through various forms of parameterization Aerodynamic and surface resistances, necessary for the Penman—Monteith equation are calculated from routinely measured meteorological data. The profile method for estimation of sensible heat flux and friction velocity is found to work excellently on the discussed daytime experimental data which correspond mainly to near neutral or slightly unstable conditions. Surface latent and sensible heat fluxes can also be described very well by the resistance method. A slightly better estimate of the sensible heat flux is achieved when stability corrections are taken into account. On the contrary Penman-Monteith equation for estimating latent heat flux is insensitive to adjustments for atmospheric stability. The comparison of the various methods leads to the establishment of empirical relationships which correlate various quantities such as soil heat flux, resistances, evapotranspiration etc. to routinely measured meteorological data.

Jacovides, C.; Kerkides, P.; Papaioannou, G.; Smith, F. B.

1992-06-01

58

Chemical translation: the case of Robert Boyle's experiments on sensible qualities.  

PubMed

The purpose of this work is to translate some of Robert Boyle's chemical experiments into the terms of modern chemistry. Most of the reactions involve sensible qualities, since there are on it considerable helpful tracking descriptions like heating, hissing, colour changing, etc. For a long time in the history of science, this procedure was seen as an exercise in anachronism which should be avoided at all costs. Recently many scholars have demonstrated that chemical translation can assist with historical work instead of causing confusion, and it may be very useful as a tool for the history of chemistry and for reproducing past chemical experiments. PMID:21688697

Cecon, Kleber

2011-04-01

59

Carbon dioxide, water vapor and sensible heat fluxes over a tallgrass prairie  

NASA Astrophysics Data System (ADS)

Fluxes of CO2, water vapor and sensible heat were measured in a grassland ecosystem near Manhattan, Kansas, employing the eddy correlation technique. The vegetation at this site is dominated by big bluestem ( Andropogon gerardii), switchgrass ( Panicum virgatum), and indiangrass ( Sorghastrum nutans). Diurnal patterns of the energy budget components and CO2 fluxes are evaluated on a few selected days. Influence of high atmospheric evaporative demand and low availability of soil water are examined on (a) energy partitioning, and (b) the magnitudes and patterns of atmospheric carbon dioxide exchange.

Verma, Shashi B.; Kim, Joon; Clement, Robert J.

1989-01-01

60

Seasonal variations of latent and sensible heat fluxes in complex terrain  

NASA Astrophysics Data System (ADS)

Flight altitudes of gliders in early spring indicate that the sensible heat flux into the operationally predicted convective boundary layer has to be increased at the expense of the latent heat flux when vegetation is inactive. In late autumn, winter, and early spring transpiration does not contribute to the latent heat flux and allows for increased sensible heat flux in the surface energy budget. The seasonal variation of the latent heat flux has been parameterized with the climatological daily average temperature: a threshold for the daily average temperature is required for the vegetation to be active. In the complex terrain of the Alps the temperature range from 10 deg C (threshold for active vegetation) down to 2 deg C (threshold for the snow line) for the daily mean temperature covers a significant fraction of the surface. The elevation range corresponding to this temperature range shows a marked seasonal variation. A harmonic seasonal modulation of the daily average temperature was adjusted to climatological station data. Additionally, the vertical decrease of both the annual mean temperature and the seasonal amplitude of the daily mean temperature is relevant in the Alps. Both vertical gradients were again obtained from climatological station data. The threshold parameterization of the transpiration with the climatological daily mean temperature greatly affects the seasonal variation of the predicted depth of the convective boundary layer, as reduced latent heat flux allows for increased sensible heat flux. The effect on the depth of the predicted convection is most pronounced in elevated complex terrain like the Alps. Glider flight trajectories published daily in online soaring contests are used routinely for the verification of operational convection forecasts. With such GPS based flight data regional predictions of the convective updrafts and of the depth of the convective boundary layer can both be verified with great temporal and spatial resolution, throughout the seasons, and almost in real-time. Such glider flight data have been used to develop and verify the described climatological parameterization of transpiration which significantly affects the seasonal variation of the latent and sensible heat fluxes and thus the depth of convection.

Liechti, O.; Thehos, R.

2010-09-01

61

Water vapour and sensible heat fluxes over forest: a multi-year study  

NASA Astrophysics Data System (ADS)

The interannual variability in water vapour and sensible heat fluxes over beech forest in Denmark is analysed. A time-series from seven years (half hourly values) are investigated in regard to extremes and the interannual variability at daily and monthly time-scales. The fluxes are measured by the eddy correlation technique from a tall mast in the center of the forest. The experimental site is part of the CARBO-EUROFLUX network and observations include precipitation, soil water, CO2, temperature, humidity, solar radiation and plant parameters. In the current study focus is on the water balance. A comparison between the water balance components, CO2 and environmental parameters is undertaken. The results are part of EO-FLUX-BUDGET project (http://www.geogr.ku.dk/projects/eoflux/) aiming for spatial and temporal predictions of the water vapour, sensible heat and CO2 balance over the island Zealand (7.200 km2) in Denmark based on satellite Earth Observation data at high resolution. The validation part is based on the in-situ heat and water vapour flux observations presented here.

Hasager, C. B.; Pilegaard, K.; Jensen, N. O.

2003-04-01

62

Using Scintillometry to Estimate Sensible Heat Fluxes over Water: First Insights  

NASA Astrophysics Data System (ADS)

An extra large aperture scintillometer (XLAS) was used over several months across the Thau Lagoon (South of France) to retrieve one-wavelength scintillation and, thence, sensible heat flux. We present the experiment with the XLAS, an eddy-covariance station and meteorological stations measuring on or near the Thau Lagoon. Changes implemented to adapt the scintillometry processing schemes to the above water conditions are presented together with a full error budget, including sensitivity tests to the relevant parameters of the scintillometer processing scheme. The XLAS error budget amounts to 16% (systematic part) ±50% (random part). Sensible heat fluxes obtained using the XLAS under unstable atmospheric conditions are then compared to eddy-covariance estimates used as a reference. The scintillometry technique proved to perform satisfactorily in such a watery environment. Some discrepancies observed between the XLAS and eddy-covariance measurements were investigated according to the lagoon fraction of the source area, to discriminate whether they were related to deviations from the Monin-Obukhov similarity theory or to different atmospheric conditions at the respective instrument locations. Local atmospheric conditions agreed well with the Monin-Obukhov similarity theory, especially measurements with source areas largely composed of the lagoon surface. Retaining only the measurements with almost only the lagoon surface in the source area improved the agreement between the XLAS and eddy-covariance measurements. The remaining discrepancies are interpreted as being due to significant location differences between the two instruments, resulting in different atmospheric conditions, and to size differences in the source areas.

Bouin, M. N.; Legain, D.; Traullé, O.; Belamari, S.; Caniaux, G.; Fiandrino, A.; Lagarde, F.; Barrié, J.; Moulin, E.; Bouhours, G.

2012-06-01

63

Estimation of catchment averaged sensible heat fluxes using a Large Aperture Scintillometer  

NASA Astrophysics Data System (ADS)

Evapotranspiration rates at the catchment scale are very difficult to quantify. One possible manner to continuously observe this variable could be the estimation of sensible heat fluxes (H) across large distances (in the order of kilometers) using a Large Aperture Scintillometer (LAS), and inverting these observations into evapotranspiration rates, under the assumption that the LAS observations are representative for the entire catchment. The objective of this presentation is to assess whether measured sensible heat fluxes from a LAS over a long distance (9.5 km) can be assumed to be valid for a 102.3 km2 heterogeneous catchment. Therefore, a fully process-based water and energy balance model with a spatial resolution of 50 m has been thoroughly calibrated and validated for the Bellebeek catchment in Belgium. A footprint analysis has been performed. It has been found that good estimates of the temporally variable surface roughness parameters are needed in order for the LAS to provide adequate measurements. The modeled H within the footprint has been found to be very similar to the scintillometer observations, and the catchment averaged H. When the scintillometer path is reduced to 1 km, the validity of this statement depends on the location of the scintillometer path.

Samain, Bruno; Ferket, Bram; Defloor, Willem; Pauwels, Valentijn R. N.

2010-05-01

64

Surface-sensible and latent heat fluxes over the Tibetan Plateau from ground measurements, reanalysis, and satellite data  

NASA Astrophysics Data System (ADS)

Estimations from meteorological stations over the Tibetan Plateau (TP) indicate that since the 1980s the surface-sensible heat flux has been decreasing continuously, and modeling studies suggest that such changes are likely linked to the weakening of the East Asian Monsoon through exciting Rossby wave trains. However, the spatial and temporal variations in the surface-sensible and latent heat fluxes over the entire TP remain unknown. This study aims to characterize the spatial and seasonal variability of the surface-sensible and latent heat fluxes at 0.5° over the TP from 1984 to 2007 by synthesizing multiple data sources including ground measurements, reanalysis products, and remote-sensing products. The root mean square errors (RMSEs) from cross validation are 14.3 Wm-2 and 10.3 Wm-2 for the monthly fused sensible and latent heat fluxes, respectively. The fused sensible and latent heat-flux anomalies are consistent with those estimated from meteorological stations, and the uncertainties of the fused data are also discussed. The associations among the fused sensible and latent heat fluxes and the related surface anomalies such as mean temperature, temperature range, snow cover, and normalized difference vegetation index (NDVI) in addition to atmospheric anomalies such as cloud cover and water vapor show seasonal dependence, suggest that the land-biosphere-atmosphere interactions over the TP could display nonuniform feedbacks to the climate changes. It would be interesting to disentangle the drivers and responses of the surface-sensible and latent heat-flux anomalies over the TP in future research from evidences of modeling results.

Shi, Q.; Liang, S.

2014-06-01

65

Eddy covariance measurements of sensible and latent heat flux over snow in complex alpine terrain  

NASA Astrophysics Data System (ADS)

An eddy covariance system for measuring vertical fluxes of sensible / latent heat and momentum over snow was set up in summer 2011 at the Weissfluhjoch field site close to Davos in the Swiss Alps at 2450 m a.s.l. The field site itself is located on a flat part of a south-east facing slope which is imbedded in complex alpine terrain with nearby mountain ridges overtopping the study plot by ~ 100 - 200 m on the three remaining sides. The final objectives of the eddy covariance measurements are twofold. Firstly, to investigate the air-surface exchange of sensible / latent heat and relate it to the local boundary layer structure given the fact that diverse footprints will play a role depending on wind and stability and secondly, to estimate the turbulent flux contributions to the snow pack energy budget, which ultimately drive the snow metamorphism (Stoessel et al. 2010). Here we present the eddy covariance data collected within 5 months of the winter season 2010/2011 in a primarily methodological framework. The eddy covariance measurements are analysed as to the implications of different data quality assurance and processing methods on sensible / latent heat flux estimates. In particular, the effects are investigated of (i) mean wind speed, turbulence intensity and well developed turbulence, (ii) stationarity and averaging intervals, and (iii) despiking, detrending and spectral correction algorithms. The methodological study is motivated by the fact that most investigations of this type have been performed for grasslands or forested landscapes in homogeneous terrain at low altitude sites in moderate or warm climates rather than for snow covered surfaces at complex alpine sites. However, due to considerable differences in ambient conditions between these types of sites, it appears advisable to pursue a critical analysis of the effect of different data quality assurance and processing methods on flux estimates and to establish specific rules for such sites (e.g. Reba et al. 2009). Beyond the methodological study, first results are presented which show that a few characteristic boundary layer developments cover most of the situations at the site and relate to typical scenarios of snow surface energy and mass exchange such as surface hoar formation, sublimation or intensive melt.

Lehning, M.; Gromke, C.

2011-12-01

66

Integration of Heat-Pulse and Sensible Heat Balance Methods to Estimate Evaporation From Bare Soils  

NASA Astrophysics Data System (ADS)

A critical component of the water cycle at local, regional and global scales is evaporation from soil. Because it is very difficult to measure soil evaporation and soil moisture in the field, with the exception of using a lysimeter for local measurements, numerous model based estimation methods have been proposed. Numerical approaches that attempt to estimate evaporation rates within the top several centimeters of soil often rely of empirical and semi-empirical methods. Another less well known method to determine evaporation relies on heat pulse sensors to measure soil temperature and thermal properties. This approach does not rely on knowledge of soil hydraulic properties, effectively removing the need of several common empirical methods to define the soil surface boundary condition. The objective of this study was to integrate both the heat-pulse and sensible heat balance methods into a non-isothermal multiphase flow model in order to define the boundary conditions at the land/atmosphere interface. This model was tested using precision experimental data collected under laboratory conditions and compared to more traditional numerical modeling approaches. Experimental data was generated in a two-dimensional soil tank containing an array of sensors that allowed soil temperature, soil moisture content, and relative humidity to be collected continuously and autonomously. The soil tank was placed within a wind tunnel test facility to insure that atmospheric conditions were carefully controlled and monitored throughout the duration of the experiment. Numerical results of the model using the heat pulse and sensible heat balance methods were compared to those generated using different, more traditional modeling approaches. Results demonstrate the applicability of incorporating the heat-pulse and sensible heat balance methods in numerical approaches. Further validation was provided through a comparison of the numerical results and independently determined experimental results. This numerical approach shows great ability to accurately predict soil-water evaporation rates at fine spatial and temporal scales. Results of this study will be used in future research for larger, more complex atmospheric conditions and soil heterogeneities.

Trautz, A.; Smits, K. M.; Schulte, P.; Cihan, A.; Illangasekare, T. H.

2012-12-01

67

Doppler lidar measurements of boundary layer winds and sensible heat flux  

NASA Astrophysics Data System (ADS)

During the Convective and Orographically induced Precipitation Study the Salford Universities' Facility for Atmospheric Measurement 1.5 micron scanning Doppler lidar was deployed at Achern, Bavaria, Germany from 13th June to 16th August 2007. Vertical velocity profiles through the boundary layer were measured every 3 minutes with vertical profiles of horizontal wind velocity being derived from performing azimuth scans approximately every 30 minutes. During Intense Observation Periods radiosondes were launched from the site. In this paper, a case of convective development on 15th July 2007 is investigated. Estimates of eddy dissipation rate are made from the vertically pointing lidar data and used as one input to the velocity temperature co-variance equation to estimate sensible heat flux. The assumptions made in this analysis are tested as far as possible.

Davis, J. C.; Davies, F.; Collier, C. G.; Pearson, G. N.

2008-05-01

68

Eddy fluxes of CO2, water vapor, and sensible heat over a deciduous forest  

NASA Astrophysics Data System (ADS)

Fluxes of CO2, latent heat and sensible heat were measured above a fully-leafed deciduous forest in eastern Tennessee with the eddy correlation technique. These are among the first reported observations over such a surface. The influences of solar radiation, vapor pressure deficit and the aerodynamic and canopy resistances on these mass and energy exchanges are examined. Following a concept introduced by McNaughton and Jarvis (1983), examination of our data suggest that the water vapor exchange of a deciduous forest is not as strongly coupled with net radiation as is that of agricultural crops. The degree of decoupling is smaller than in the case of a coniferous forest. This difference may be attributable in part to the greater aerodynamic resistance to water vapor transfer in a deciduous forest. It appears that the concept of decoupling may be extended to the CO2 exchange of a deciduous forest as well.

Verma, Shashi B.; Baldocchi, Dennis D.; Anderson, Dean E.; Matt, Detlef R.; Clement, Robert J.

1986-07-01

69

Preliminary Evaluation of Sensible Heat Flux Measurements From a Large Aperture Scintillometer Using Lysimetric Data  

NASA Astrophysics Data System (ADS)

The path integrating capabilities of scintillometers over several kilometers make it a potential tool that can bridge the gap between primary point based observations (lysimeters, Bowen ratio, or eddy covariance) and the demand for large-scale spatially averaged surface fluxes. Further, the spatial scale of sensible heat flux data collected from a scintillometer is comparable to the spatial resolution of satellite images. Therefore, scintillometer data may be useful for validating evapotranspiration maps based on satellite data. Numerous studies have evaluated the measurement accuracy of scintillometers using eddy covariance systems; however, the latter has energy balance closure problems up to 30%. The main objective of this study is to test the Large Aperture Scintillometer (LAS) using lysimetric data. The LAS monitors the sensible heat flux (H) and water vapor flux (LE) is calculated as a residual of the surface energy balance equation by monitoring net radiation (Rn) and soil heat flux (G) (LE=Rn+G-H). A Large Aperture Scintillometer (LAS) was deployed across two lysimeter fields planted with grain sorghum under dryland management conditions. The orientation of LAS was selected to have the path of the LAS perpendicular to the predominant wind direction and to avoid direct sun light on the lenses. The refractive index of air was monitored during the 2007 cropping season at 15-min. intervals, synchronized with weather station and lysimeter measurements. In addition, a net radiometer and three soil heat flux plates were installed near both the receiver and transmitter of the scintillometer as well as on two large monolithic lysimeters. Predicted water vapor fluxes from the scintillometer-net radiometer-heat flux plate setup were compared with lysimeter data. Preliminary results (three months of data) indicate that the LAS is a promising tool for deriving water vapor fluxes. However, further evaluation is needed under a variety of crop/weather conditions to fully assess its capability to accurately estimate spatially distributed water vapor fluxes.

Gowda, P. H.; Howell, T. A.; Scanlon, B. R.; Copeland, K. S.; Bush, K.

2007-12-01

70

The Influence of the Sensible Heat of Rain and Subsurface Heat Transport on the Energy Balance at the Land Surface  

NASA Astrophysics Data System (ADS)

In land many surface models, which account for the energy balance at the land surface, subsurface heat transport is an important component that reciprocally influences ground, sensible and latent heat fluxes, and net radiation. The applied subsurface heat transport parameterizations are commonly simplified for computational efficiency. A major simplification is the disregard of the sensible heat of rain and convective subsurface heat flow, i.e. the transport of heat through moisture redistribution, which basically decouples heat transport from moisture transport at the land surface and in the subsurface. In the presented analysis, the influence of sensible heat of rain and convection on the energy balance is studied using a coupled model that integrates a subsurface moisture and energy transport model with a land surface model. It is shown that all components of the land surface energy balance depend on the sensible heat of rain. The strength of the dependence is related to the rain rate, and the temperature difference between the rain water and the soil surface. The rain water temperature is a parameter rarely measured in the field that introduces uncertainty in the calculations and is approximated using the either the air or wet bulb temperatures in different simulations. In addition it is shown that the lower boundary condition for closing the problem of subsurface heat transport has strong implications on the energy balance under dynamic equilibrium conditions. Comparison with measured data from the Meteostation Haarweg, Wageningen, The Netherlands, shows good agreement and suggests the usefulness of the proposed approach.

Kollet, S.; Cvijanovic, I.; Schüttemeyer, D.; Maxwell, R. M.; Moene, A. F.; Bayer, P.

2009-04-01

71

Wasted Potential: The Role of Higher Education Institutions in Supporting Safe, Sensible and Social Drinking among Students  

ERIC Educational Resources Information Center

Setting: The United Kingdom (UK) government has acknowledged that there is a problem with excess alcohol consumption, in particular amongst young people. Higher education is an important health promotion setting in which to explore not only how sensible drinking patterns can be facilitated and embedded in students' current lifestyles but also…

Orme, Judy; Coghill, Nikki

2014-01-01

72

Persistent unstable atmospheric boundary layer enhances sensible and latent heat loss in a tropical great lake: Lake Tanganyika  

NASA Astrophysics Data System (ADS)

Energy fluxes across the surface of lakes regulate heat storage and affect the water balance. Sensible and latent heat fluxes are affected by atmospheric stability, especially for large lakes. We examined the effect of atmospheric stability on the heat fluxes on seasonal time scales at Lake Tanganyika, East Africa, by estimating hourly sensible and latent heat fluxes and net radiation using thermistor chains and meteorological stations. The atmosphere was almost always unstable, in contrast to the atmosphere above North American Great Lakes which is unstable in winter and stable in summer. Persistent atmospheric instability resulted in a 13% and 18% increase in the annual mean heat loss by latent and sensible heat fluxes, respectively, relative to conditions of neutral stability. The persistent unstable atmosphere is caused by a higher water surface temperature compared with air temperature, which we argue is the case in general in (sub)tropical lakes. Low humidity further enhanced the frequency of unstable conditions and enhanced the exchange of heat and vapor from the lake to the atmosphere. The estimated heat fluxes were sensitive to the temporal scale of data inputs and to the local values of parameters such as air density. To our knowledge this is the first paper that demonstrates and quantifies the effect of atmospheric stability on latent and sensible heat fluxes from a lake on an annual basis, using data collected from the lake surface.

Verburg, Piet; Antenucci, Jason P.

2010-06-01

73

Effects of cold fronts on MODIS-derived sensible and latent heat fluxes in Itumbiara reservoir (Central Brazil)  

NASA Astrophysics Data System (ADS)

In this work we investigate the cold front passage effects on sensible and latent heat flux in a tropical hydroelectric reservoir. The study area, Itumbiara reservoir (Goiás State/Brazil) at the beginning of the austral winter, is characterized by the presence of a weak thermal stratification and the passage of several cold fronts from higher latitudes of South America. Sensible and latent heat fluxes were estimated considering the atmospheric boundary layer stability. In situ and MODIS water surface temperature data were used to adjust the coefficients for momentum and heat exchanges between water and atmosphere and spatialize the sensible and latent heat fluxes. The results showed that during a cold front event the sensible heat flux can be up to five times greater than the flux observed before. The latent heat flux tends to decrease during the cold front but increase again after the passage. The highest values of heat loss were observed at littoral zone and some Reservoir's embayment. The heat loss intensification can be separated in two moments: first, during the cold front passage, when the wind speed increases and the air temperature decreases; second, after the cold front passage, with air humidity decreasing. This can be considered a key process to understanding the heat loss in the Itumbiara reservoir.

Curtarelli, Marcelo; Alcântara, Enner; Rennó, Camilo; Stech, José

2013-11-01

74

EXPERIMENTS AND MODELLING OF CALCIUM SULPHATE PRECIPITATION UNDER SENSIBLE HEATING CONDITIONS: INITIAL FOULING AND BULK PRECIPITATION RATE STUDIES  

Microsoft Academic Search

Crystallization of calcium sulphate, an inverse solubility salt, on a heated surface under sensible heating conditions has been studied. A temperature measurement technique was employed to detect initial fouling rates. Fouling experiments were carried out to determine how process variables such as surface temperature and velocity affect the initial fouling rates of calcium sulphate scaling. Experimental results show that, at

F. Fahiminia; A. P. Watkinson; N. Epstein

2008-01-01

75

Latissimus dorsi breast reconstruction. Long term results and return of sensibility.  

PubMed

The long-term results of 44 patients who underwent breast reconstruction after mastectomy with latissimus dorsi musculocutaneous flaps with endoprostheses were studied. Good symmetry without a brassiere was achieved in 15 patients, slight asymmetry in 24 and poor symmetry in five (11%). Symmetry when a brassiere was worn was acceptable in all but one of the patients (43/44). A third of the patients (n = 13) had developed unacceptable (grade III or IV) capsular contraction, but 39 (89%) of the patients studied were satisfied with the long-term reconstruction. Cutaneous sensibility, measured by von Frey's test, had returned to 28 (64%) of the cutaneous skin islands, to their medial parts in particular. The flaps in patients who had received concentrated radiation or who had large prostheses remained numb. Sensation was normal in the scars of the donor areas in all but three patients. Latissimus dorsi breast reconstruction with an endoprosthesis is safe and simple. It gives a subjectively satisfactory result in nine out of 10 patients and is therefore a valuable method of reconstruction after mastectomy. PMID:8351493

Peltoniemi, H; Asko-Seljavaara, S; Härmä, M; Sundell, B

1993-01-01

76

Assessment of muscle flap sensibility by evoked potentials in the rat.  

PubMed

This study investigated whether the sensory-to-motor reinervation of the muscle flap provides a better sensory recovery of an overlying skin graft. Fifty-four animals were studied in three groups of 18 rats each: group I (control): 1 cm of the gastrocnemius muscle motor nerve was excised and no repair was performed; group II (motor-to-motor repair): the motor nerve of the gastrocnemius flap was transected and repaired; group III (sensory-to-motor repair): the motor nerve of the gastrocnemius muscle and sural nerve were transected and their distal and proximal ends, respectively, were repaired. At follow-up periods of 6, 12, and 24 weeks, evaluation of hair growth, muscle atrophy, and sensory evoked potentials was performed. Somatosensory evoked potentials (SSEP) at 6 weeks in the sensory-to-motor repair (group III) revealed a significant (P < 0. 05) increase (104.4% +/- 22.9) in the relative response of peak-to-peak potentials when compared with group I (46.6% +/- 19) and group II (51.8% +/- 14.0). Muscle flap stimulation was most prominent at 6 weeks in sensory-to-motor reinvervated flaps (group III 133.1% +/- 25.4; group I 84.9% +/- 20.2). In this study, sensory-to-motor nerve repair significantly improved the sensibility of skin flaps at 6 weeks. Denervated flaps presented with 3 months of sensory recovery delay. PMID:10702742

Siemionow, M; Latifoglu, O; Demirkan, F; Siemionow, W; Lister, G

2000-01-01

77

Sensible and latent heat loss from the body surface of Holstein cows in a tropical environment  

NASA Astrophysics Data System (ADS)

The general principles of the mechanisms of heat transfer are well known, but knowledge of the transition between evaporative and non-evaporative heat loss by Holstein cows in field conditions must be improved, especially for low-latitude environments. With this aim 15 Holstein cows managed in open pasture were observed in a tropical region. The latent heat loss from the body surface of the animals was measured by means of a ventilated capsule, while convective heat transfer was estimated by the theory of convection from a horizontal cylinder and by the long-wave radiation exchange based on the Stefan-Boltzmann law. When the air temperature was between 10 and 36°C the sensible heat transfer varied from 160 to -30 W m-2, while the latent heat loss by cutaneous evaporation increased from 30 to 350 W m-2. Heat loss by cutaneous evaporation accounted for 20-30% of the total heat loss when air temperatures ranged from 10 to 20°C. At air temperatures >30°C cutaneous evaporation becomes the main avenue of heat loss, accounting for approximately 85% of the total heat loss, while the rest is lost by respiratory evaporation.

Maia, A. S. C.; Dasilva, R. G.; Battiston Loureiro, C. M.

2005-09-01

78

The Influence of Aircraft Speed Variations on Sensible Heat-Flux Measurements by Different Airborne Systems  

NASA Astrophysics Data System (ADS)

Crawford et al. (Boundary-Layer Meteorol 66:237-245, 1993) showed that the time average is inappropriate for airborne eddy-covariance flux calculations. The aircraft's ground speed through a turbulent field is not constant. One reason can be a correlation with vertical air motion, so that some types of structures are sampled more densely than others. To avoid this, the time-sampled data are adjusted for the varying ground speed so that the modified estimates are equivalent to spatially-sampled data. A comparison of sensible heat-flux calculations using temporal and spatial averaging methods is presented and discussed. Data of the airborne measurement systems , Helipod and Dornier 128-6 are used for the analysis. These systems vary in size, weight and aerodynamic characteristics, since the is a small unmanned aerial vehicle (UAV), the Helipod a helicopter-borne turbulence probe and the Dornier 128-6 a manned research aircraft. The systematic bias anticipated in covariance computations due to speed variations was neither found when averaging over Dornier, Helipod nor UAV flight legs. However, the random differences between spatial and temporal averaging fluxes were found to be up to 30 % on the individual flight legs.

Martin, Sabrina; Bange, Jens

2014-01-01

79

Assessing Inter-Sensor Variability and Sensible Heat Flux Derivation Accuracy for a Large Aperture Scintillometer  

PubMed Central

The accuracy in determining sensible heat flux (H) of three Kipp and Zonen large aperture scintillometers (LAS) was evaluated with reference to an eddy covariance (EC) system over relatively flat and uniform grassland near Timpas (CO, USA). Other tests have revealed inherent variability between Kipp and Zonen LAS units and bias to overestimate H. Average H fluxes were compared between LAS units and between LAS and EC. Despite good correlation, inter-LAS biases in H were found between 6% and 13% in terms of the linear regression slope. Physical misalignment was observed to result in increased scatter and bias between H solutions of a well-aligned and poorly-aligned LAS unit. Comparison of LAS and EC H showed little bias for one LAS unit, while the other two units overestimated EC H by more than 10%. A detector alignment issue may have caused the inter-LAS variability, supported by the observation in this study of differing power requirements between LAS units. It is possible that the LAS physical misalignment may have caused edge-of-beam signal noise as well as vulnerability to signal noise from wind-induced vibrations, both having an impact on the solution of H. In addition, there were some uncertainties in the solutions of H from the LAS and EC instruments, including lack of energy balance closure with the EC unit. However, the results obtained do not show clear evidence of inherent bias for the Kipp and Zonen LAS to overestimate H as found in other studies.

Rambikur, Evan H.; Chavez, Jose L.

2014-01-01

80

Controls on sensible heat and latent energy fluxes from a short-hydroperiod Florida Everglades marsh  

NASA Astrophysics Data System (ADS)

SummaryLittle is known of energy balance in low latitude wetlands where there is a year-round growing season and a climate best defined by wet and dry seasons. The Florida Everglades is a highly managed and extensive subtropical wetland that exerts a substantial influence on the hydrology and climate of the south Florida region. However, the effects of seasonality and active water management on energy balance in the Everglades ecosystem are poorly understood. An eddy covariance and micrometeorological tower was established in a short-hydroperiod Everglades marsh to examine the dominant environmental controls on sensible heat ( H) and latent energy ( LE) fluxes, as well as the effects of seasonality on these parameters. Seasonality differentially affected H and LE fluxes in this marsh, such that H was principally dominant in the dry season and LE was strongly dominant in the wet season. The Bowen ratio was high for much of the dry season (1.5-2.4), but relatively low (<0.7) in the wet season. Net radiation strongly influenced H and LE fluxes across nearly all seasons and years ( Radj2=0.48-0.79). However, the 2009 dry season LE data were not consistent with this relationship ( Radj2=0.08) because of low seasonal variation in LE following a prolonged end to the previous wet season. In addition to net radiation, H and LE fluxes were significantly related to soil volumetric water content (VWC), water depth, air temperature, and occasionally vapor pressure deficit. Given that VWC and water depth were determined in part by water management decisions, it is clear that human actions have the ability to influence the mode of energy dissipation from this ecosystem. Impending modifications to water management under the Comprehensive Everglades Restoration Plan may shift the dominant turbulent flux from this ecosystem further toward LE, and this change will likely affect local hydrology and climate.

Schedlbauer, Jessica L.; Oberbauer, Steven F.; Starr, Gregory; Jimenez, Kristine L.

2011-12-01

81

Using sonic anemometer temperature to measure sensible heat flux in strong winds  

NASA Astrophysics Data System (ADS)

Sonic anemometers simultaneously measure the turbulent fluctuations of vertical wind (w') and sonic temperature (Ts'), and are commonly used to measure sensible heat flux (H). Our study examines 30-min heat fluxes measured with a Campbell Scientific CSAT3 sonic anemometer above a subalpine forest. We compared H calculated with Ts to H calculated with a co-located thermocouple and found that, for horizontal wind speed (U) less than 8 m s-1, the agreement was around ±30 W m-2. However, for U ? 8 m s-1, the CSAT H had a generally positive deviation from H calculated with the thermocouple, reaching a maximum difference of ?250 W m-2 at U ? 18 m s-1. With version 4 of the CSAT firmware, we found significant underestimation of the speed of sound and thus Ts in high winds (due to a delayed detection of the sonic pulse), which resulted in the large CSAT heat flux errors. Although this Ts error is qualitatively similar to the well-known fundamental correction for the crosswind component, it is quantitatively different and directly related to the firmware estimation of the pulse arrival time. For a CSAT running version 3 of the firmware, there does not appear to be a significant underestimation of Ts; however, a Ts error similar to that of version 4 may occur if the CSAT is sufficiently out of calibration. An empirical correction to the CSAT heat flux that is consistent with our conceptual understanding of the Ts error is presented. Within a broader context, the surface energy balance is used to evaluate the heat flux measurements, and the usefulness of side-by-side instrument comparisons is discussed.

Burns, S. P.; Horst, T. W.; Jacobsen, L.; Blanken, P. D.; Monson, R. K.

2012-09-01

82

Lower-extremity sensibility testing in patients with herniated lumbar intervertebral discs.  

PubMed

The significance of sensory changes determined by pinprick and light touch in individuals with a herniated lumbar disc has been questioned. Discrepancies may be related to the subjectiveness of the test, failure to use dermatome-specific testing sites, overlap of areas that are innervated by different nerve roots, anatomical variations, or lack of sensitivity of the testing technique. For this study, we assessed the results of sensory examinations of twenty-five patients with documented herniation of a lumbar disc. The examinations were done using Semmes-Weinstein monofilaments, vibrometry, pinprick, and light touch in the autonomous skin areas supplied by the fourth and fifth lumbar and first sacral-nerve roots. Right-left differences in Semmes-Weinstein pressure thresholds of more than fifteen milligrams per square millimeter enabled us to localize disc lesions to a specific root in 100 per cent of patients and differences in vibratory thresholds of more than 3.5 micrometers, to localize the correct level in 88 per cent. Lesser differences in thresholds did not help to identify the involved root. The mean sensory threshold on the side of the disc lesion was found to be significantly greater than that on the opposite side by both vibrometry and pressure aesthesiometry (p less than 0.005). These findings were not duplicated using light touch or pinprick testing. Even with the most sophisticated sensibility-testing techniques, correct identification of the nerve root that was compressed by a herniated lumbar disc was accurate in only 50 per cent of patients. PMID:2997232

Weise, M D; Garfin, S R; Gelberman, R H; Katz, M M; Thorne, R P

1985-10-01

83

The organization of taste sensibilities in hamster chorda tympani nerve fibers  

PubMed Central

Electrophysiological measurements of nerve impulse frequencies were used to explore the organization of taste sensibilities in single fibers of the hamster chorda tympani nerve. Moderately intense taste solutions that are either very similar or easily discriminated were applied to the anterior lingual surface. 40 response profiles or 13 stimulus activation patterns were considered variables and examined with multivariate statistical techniques. Three kinds of response profiles were seen in fibers that varied in their overall sensitivity to taste solutions. One profile (S) showed selectivity for sweeteners, a second (N) showed selectivity for sodium salts, and a third (H) showed sensitivity to salts, acids, and other compounds. Hierarchical cluster analysis indicated that profiles fell into discrete classes. Responses to many pairs of effective stimuli were covariant across profiles within a class, but some acidic stimuli had more idiosyncratic effects. Factor analysis of profiles identified two common factors, accounting for 77% of the variance. A unipolar factor was identified with the N profile, and a bipolar factor was identified with the S profile and its opposite, the H profile. Three stimulus activation patterns were elicited by taste solutions that varied in intensity of effect. Hierarchical cluster analysis indicated that the patterns fell into discrete classes. Factor analysis of patterns identified three common unipolar factors accounting for 82% of the variance. Eight stimuli (MgSO4, NH4Cl, KCl, citric acid, acetic acid, urea, quinine HCl, HCl) selectively activated fibers with H profiles, three stimuli (fructose, Na saccharin, sucrose) selectively activated fibers with S profiles, and two stimuli (NaNO3, NaCl) activated fibers with N profiles more strongly than fibers with H profiles. Stimuli that evoke different patterns taste distinct to hamsters. Stimuli that evoke the same pattern taste more similar. It was concluded that the hundreds of peripheral taste neurons that innervate the anterior tongue play one of three functional roles, providing information about one of three features that are shared by different chemical solutions.

Frank, ME; Bieber, SL; Smith, DV

1988-01-01

84

Energy partitioning between latent and sensible heat flux during the warm season at FLUXNET sites  

NASA Astrophysics Data System (ADS)

The warm season (mid-June through late August) partitioning between sensible (H) and latent (LE) heat flux, or the Bowen ratio (? = H/LE), was investigated at 27 sites over 66 site years within the international network of eddy covariance sites (FLUXNET). Variability in ? across ecosystems and climates was analyzed by quantifying general climatic and surface characteristics that control flux partitioning. The climatic control on ? was quantified using the climatological resistance (Ri), which is proportional to the ratio of vapor pressure deficit (difference between saturation vapor pressure and atmospheric vapor pressure) to net radiation (large values of Ri decrease ?). The control of flux partitioning by the vegetation and underlying surface was quantified by computing the surface resistance to water vapor transport (Rc, with large values tending to increase ?). There was a considerable range in flux partitioning characteristics (Rc, Ri and ?) among sites, but it was possible to define some general differences between vegetation types and climates. Deciduous forest sites and the agricultural site had the lowest values of Rc and ? (0.25-0.50). Coniferous forests typically had a larger Rc and higher ? (typically between 0.50 and 1.00 but also much larger). However, there was notable variability in Rc and Ri between coniferous site years, most notably differences between oceanic and continental climates and sites with a distinct dry summer season (Mediterranean climate). Sites with Mediterranean climates generally had the highest net radiation, Rc, Ri, and ?. There was considerable variability in ? between grassland site years, primarily the result of interannual differences in soil water content and Rc.

Wilson, Kell B.; Baldocchi, Dennis D.; Aubinet, Marc; Berbigier, Paul; Bernhofer, Christian; Dolman, Han; Falge, Eva; Field, Chris; Goldstein, Allen; Granier, Andre; Grelle, Achim; Halldor, Thorgeirsson; Hollinger, Dave; Katul, Gabriel; Law, B. E.; Lindroth, Anders; Meyers, Tilden; Moncrieff, John; Monson, Russ; Oechel, Walter; Tenhunen, John; Valentini, Riccardo; Verma, Shashi; Vesala, Timo; Wofsy, Steve

2002-12-01

85

On the use of radiative surface temperature to estimate sensible heat flux over sparse shrubs in Nevada  

NASA Technical Reports Server (NTRS)

The accurate partitioning of available energy into sensible and latent heat flux is crucial to the understanding of surface atmosphere interactions. This issue is more complicated in arid and semi arid regions where the relative contribution to surface fluxes from the soil and vegetation may vary significantly throughout the day and throughout the season. A three component model to estimate sensible heat flux over heterogeneous surfaces is presented. The surface was represented with two adjacent compartments. The first compartment is made up of two components, shrubs and shaded soil, the second of open 'illuminated' soil. Data collected at two different sites in Nevada (U.S.) during the Summers of 1991 and 1992 were used to evaluate model performance. The results show that the present model is sufficiently general to yield satisfactory results for both sites.

Chehbouni, A.; Nichols, W. D.; Qi, J.; Njoku, E. G.; Kerr, Y. H.; Cabot, F.

1994-01-01

86

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

NASA Technical Reports Server (NTRS)

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.

Kelly, Robert D.; Smith, Eric A.; Macpherson, J. Ian

1990-01-01

87

A Study of the Vertical Transport of Momentum, Sensible Heat, and Water Vapor over Vegetation-Covered Surfaces in the Tropics Um Estudo DOS Transportes Verticais de Momentum, Calor Sensivele Vapor d'Agua Sobre Superficie Vegetada Nos Tropicos.  

National Technical Information Service (NTIS)

The energy balance changes with aerodynamic characteristics of the surface for four successive crop stage are presented. Parameterizations are used to calculate the sensible and water vapor fluxes. The results of the momentum, sensible heat and water vapo...

R. G. B. Andre

1981-01-01

88

Limits of deterministic predictability in limited area models due to sensible dependence on initial conditions  

NASA Astrophysics Data System (ADS)

In the late 50ies and the 60ies the limit of predictability of weather has been shown to be 5 to 14 days by theoretical and numerical studies as consequence of sensible dependence on initial conditions. The simulation of an ensemble is the standard approach to address this uncertainty. Climatological means over time scales of 30 years are regarded as 'certain' under constant climate forcing conditions. A systematic analysis of predictability limits on different space and time scales in the earth system is still missing. It is relevant in particular for time scales between the time scales of weather and climate and helps avoiding misinterpretation of the results and/or to find an optimal configuration for the ensemble. In terms of statistics, the predictability of weather can be associated with the predictability of 6h and 100 km mean values. In mid latitudes it reaches a saturation value at the time scale of baroclinic instability Ti of 3-5 days. In the case of a purely stochastic process, this uncertainty is decreasing with N- where N is the number of instability time periods. One of the open questions is, which field variables exhibit a purely stochastic behavior and where. The application of Earth System Models is computationally demanding. Chaotic behavior may occur in some regions at certain conditions affecting the analysis. A huge number of degrees of freedom makes very long simulation times necessary. The application of limited area modeling opens the opportunity to analyse the behavior in different regions independently und thus to investigate the stochastic properties in different climates. Three different regions Europe, Africa and Central America have been simulated twice (reference and disturbance run) at standard grid resolution of 18 to 25 km using the community model COSMO-CLM. In Europe a purely stochastic behavior was found for the momentum, pressure and precipitation. A strong memory effect was found for soil moisture and temperature and a weak memory effect for the atmospheric temperature. The analysis of the simulation for Africa and Meso-America is ongoing. Predictability limits for different thresholds and variables can be calculated in terms of the ensemble size needed to keep the uncertainty below the threshold. Such maps will be presented and the differences between the variables and regions will be discussed.

Will, Andreas

2014-05-01

89

Turbulent Fluxes of Sensible Heat Measured by Research UAV 'M2AV Carolo'  

NASA Astrophysics Data System (ADS)

Research aircraft equipped for turbulence measurements in the atmospheric boundary layer (ABL) are suitable platforms to measure area-representative mean values and statistical moments of second order - like variance, spectral distribution and turbulent fluxes - in situ i.e. without the use of any theoretical assumptions. Since manned research aircraft are expensive the use of small unmanned aerial vehicle (UAV) or mini aerial vehicles (MAV) is attractive. Such research UAV are able to measure vertical profiles of the lower troposphere, for instance. The next, more challenging league is the measurement of the turbulent fluctuations of the wind vector and simultaneously at least one scalar quantity in order to calculate turbulent fluxes using eddy covariance. To do this, fast and accurate sensors are required, with small weight, small dimensions and small power consumption, in order to be operated on a small research UAV. Beside absolute and relative measurement accuracy, the response time of the sensors has to be short (in the order of several 10 Hz) to resolve turbulent eddies also in stable stratification (i.e. sub-metre range). Since light, small and fast sensors for air humidity and trace gases are not available currently, the first step is to measure the vertical flux of sensible heat H. Beside a slow (about 1 Hz) water vapour sensor, the automatically operating meteorological mini aerial vehicles (M2AV) are equipped with two temperature sensors and a wind measurement unit. One of the temperature sensors is slow but offers a high absolute accuracy, while the fast sensor (up to 100 Hz) has a high relative accuracy but is unstable in time. The two signals are blended using a complementary filter. The wind vector can be calculated using the inertial velocity (aircraft speed relative to the earth) and the true airspeed (aircraft speed relative to the airflow). The true airspeed of M2AV is computed from five-hole-probe pressure measurements whereas the aircraft inertial velocity, position, and attitude is calculated by combining data from a global positioning system (GPS) and an inertial navigation system (INS). Both the temperature and the wind units were calibrated in several wind tunnels and in-flight, using specially designed flight patterns, also in comparison with a 99-m tower of the German Meteorological Service (DWD). Measured time series are analysed in several ways. Fourier-based power spectra allow the identification of any harmonic distortion of the signal. Any deviation from Kolmogorov's law - to identify how far the inertia subrange of turbulence was resolved - is better identified using structure functions. The presentation will also show first results, in terms of turbulent heat fluxes, from LITFASS-2009 campaign.

Martin, S.; Bange, J.

2009-09-01

90

Advances in estimating the climate sensibility of a large lake using scenario simulations  

NASA Astrophysics Data System (ADS)

The vertical mixing behaviour of large deep lakes as e.g. Lake Constance is reflecting the long-term meteorological conditions and therefore is likely to be sensible to climate change. Today, Lake Constance does not mix completely every year, but only once in 2-3 years, which leads to the typical saw-tooth pattern in the deep water temperature. Whether complete mixing does occur is not only depending on the meteorological conditions in the respective winter period, but also on the thermal conditions in the lake and hence on the meteorological conditions in the preceding years. The lake's response to climate change thus depends on the temperature increase itself as well as on its gradient and on the inter-annual variability of the meteorological variables. Last year we showed first steps towards a model system to evaluate possible effects of climate change on Lake Constance: The Vector-Autoregressive Weathergenerator VG produces time series of meteorological data, which are used as boundary conditions for the 3D hydrodynamic lake model ELCOM (Centre of Water Research, University of Western Australia). As VG gives the opportunity to change mean and variability of selected variables, "What if?" - scenarios for process understanding can be performed. The time scales of variability turned out to be a critical point in the artificial time series for modelling the hydrodynamics of Lake Constance, as the big water body integrates over time and thus the hydrodynamics overlook the variability of air temperature on short time scales. Therefore, VG was developed further, especially with respect to the time scales of variability. While for heat input, the time scale of several days to weeks seems to be more important, wind and, when biology is modelled, short-wave radiation should be given at a sub-daily timestep. Besides producing user-defined scenario time-series, VG can also be used to stochastical downscale output of global climate model IPCC scenarios for lake modelling. The poster " Simulating the effect of meteorological variability on a lake ecosystem" by Marieke Anna Frassl in this session "Lakes and Inland Seas" shows lake model runs focusing on water quality and ecosystem behavior under different climate change scenarios. For further information on VG see "Stochastic Downscaling for Hydrodynamic and Ecological Modeling of Lakes" by Dirk Schlabing in Session "Hydroclimatic stochastics" (HS7.5 / NP8.3).

Eder, M. M.; Schlabing, D.; Frassl, M. A.; Rinke, K.; Bárdossy, A.

2012-04-01

91

Reconciling Latent and Sensible Energy Fluxes with Footprints in a Heterogeneous Landscape at an Urban-suburban Tower near Baltimore, Maryland  

NASA Astrophysics Data System (ADS)

Measurements of eddy-fluxes in an urban-suburban landscape may create technical difficulties as latent and sensible energy fluxes in the tower’s footprint are non-uniform. In an earlier study, we have found that the average vegetation cover surrounding the Cub Hill tower was 64 %; ranging from 46 to 77 % among 8 wind directions. We measured latent and sensible energy fluxes using a closed-path eddy-covariance system in the Cub Hill tower near Baltimore, Maryland. Half-hourly values of latent and sensible energy fluxes were stratified according to 24 15-degree bins of wind direction in each of the 16-day compositing periods for Normalized Difference Vegetation Index (NDVI) during 3 years of study (2004 to 2006). We used the daytime latent and sensible energy fluxes in the multivariate regression analyses to model fluxes of water vapor or evapotranspiration (ET) and sensible heat (H) as functions of micrometeorological variables (net radiation, temperature, relative humidity, wind speed, and soil moisture), NDVI, and land cover. Empirical models are developed at 16-day intervals for each of the 24 bins of wind direction to establish the relationships between energy fluxes (i.e., latent and sensible) and footprints (i.e., micrometeorology, NDVI, and land cover) around the Cub Hill tower.

Saliendra, N. Z.; Hom, J. L.; Pouyat, R. V.; Nowak, D.; Heisler, G. M.; Petterson, M.; Yesilonis, I.; Crawford, B.; Grimmond, S.

2009-12-01

92

The farming system sensibility of the Normandy in connection with the Climatic Change (2000-2100)  

NASA Astrophysics Data System (ADS)

The French agricultural economy is closely connected with weather-climatic conditions. For example, dryness caused by the heat-wave of 2003 seriously affected the vegetation leading to a significant slowdown of photosynthetic activity. This resulted in logical decrease of agricultural production, in particular for arable lands and fodders. The Global warming that has begun at the end of the 19th century and seems to continue and even intensify during the 21st century (GIEC, 2007) arises a question of farming system sensibility when faced with Climate Change in the future. In France, recent studies (Cloppet and al, 2009) have conducted to the probable climate features spatialization on the national territory according to different scenarios. Whatever the scenario considered, it seems that the present Norman climate type is going to disappear by the end of century to be supplanted by a type of weather influenced by raising evapotranspiration, minimal and maximum temperatures as well as a raising speed of wind and solar radiation. Globally, this could emphasize agriculture soil dryness negative impact on large cereal land and pastures production (Butault, 2009, Ruget & Brisson, 2007). However, this climatic evolution could bring some production gain when the available water content of soils allows preventing or strongly limiting the hydrous stress emergence. For the current period and horizon 2100, according to the scenario A1B of the GIEC, the evaluation and the mapping with fine spatial resolution of this pedo-climatic indicator present a capital stake to appreciate the sensitivity of the agriculture of the Normandy in connection with the climatic evolution announced for the end of the 21st century. This exploratory work has been undertaken for the departmental territory of Calvados (5500 km²). For that purpose, it has been necessary beforehand to work out a precise mapping of soils on the basis of 7514 soil boreholes. The treatment of the soil database has allowed to design a map of the available water content of soils for the 1:25,000 scale. Thereafter, the modelling and the mapping of the local evapotranspiration conditions as well as the departmental mapping of rainfalls have permitted to elaborate a calculation algorithm of hydrological balance with fine spatial resolution. The estimate and the cartographic representation of the soil dryness (hydrous deficit) for the current period and 2100 according to the scenario A1B have been obtained then by requests of the pedo-climatic database. For the current period, as far as Calvados is concerned, the results show that, the dryness of the agricultural soils of low intensity concerns a little more than 1100 km², which means one the third of the agricultural area (3500 km²). The soil dryness of strong intensity appears very circumscribed since it extends only on 182 km² (approximately 5% of agricultural area). For 2100, the results are particularly alarming. They testify to a spectacular increase in the agricultural area touched by soil dryness with a strong intensity. These would represent nearly 2500 km², which represents 70% of the agricultural area. If this kind of scenario was to be confirmed, it is all the agricultural economy of Normandy which would be deeply affected.

Le Gouée, Patrick; Cantat, Olivier; Bensaïd, Abdelkrim; Savouret, Edwige

2010-05-01

93

Some safe and sensible shortcuts for efficiently upscaled updates of existing elevation models.  

NASA Astrophysics Data System (ADS)

The Danish national elevation model, DK-DEM, was introduced in 2009 and is based on LiDAR data collected in the time frame 2005-2007. Hence, DK-DEM is aging, and it is time to consider how to integrate new data with the current model in a way that improves the representation of new landscape features, while still preserving the overall (very high) quality of the model. In LiDAR terms, 2005 is equivalent to some time between the palaeolithic and the neolithic. So evidently, when (and if) an update project is launched, we may expect some notable improvements due to the technical and scientific developments from the last half decade. To estimate the magnitude of these potential improvements, and to devise efficient and effective ways of integrating the new and old data, we currently carry out a number of case studies based on comparisons between the current terrain model (with a ground sample distance, GSD, of 1.6 m), and a number of new high resolution point clouds (10-70 points/m2). Not knowing anything about the terms of a potential update project, we consider multiple scenarios ranging from business as usual: A new model with the same GSD, but improved precision, to aggressive upscaling: A new model with 4 times better GSD, i.e. a 16-fold increase in the amount of data. Especially in the latter case speeding up the gridding process is important. Luckily recent results from one of our case studies reveal that for very high resolution data in smooth terrain (which is the common case in Denmark), using local mean (LM) as grid value estimator is only negligibly worse than using the theoretically "best" estimator, i.e. ordinary kriging (OK) with rigorous modelling of the semivariogram. The bias in a leave one out cross validation differs on the micrometer level, while the RMSE differs on the 0.1 mm level. This is fortunate, since a LM estimator can be implemented in plain stream mode, letting the points from the unstructured point cloud (i.e. no TIN generation) stream through the processor, individually contributing to the nearest grid posts in a memory mapped grid file. Algorithmically this is very efficient, but it would be even more efficient if we did not have to handle so much data. Another of our recent case studies focuses on this. The basic idea is to ignore data that does not tell us anything new. We do this by looking at anomalies between the current height model and the new point cloud, then computing a correction grid for the current model. Points with insignificant anomalies are simply removed from the point cloud, and the correction grid is computed using the remaining point anomalies only. Hence, we only compute updates in areas of significant change, speeding up the process, and giving us new insight of the precision of the current model which in turn results in improved metadata for both the current and the new model. Currently we focus on simple approaches for creating a smooth update process for integration of heterogeneous data sets. On the other hand, as years go by and multiple generations of data become available, more advanced approaches will probably become necessary (e.g. a multi campaign bundle adjustment, improving the oldest data using cross-over adjustment with newer campaigns). But to prepare for such approaches, it is important already now to organize and evaluate the ancillary (GPS, INS) and engineering level data for the current data sets. This is essential if future generations of DEM users should be able to benefit from future conceptions of "some safe and sensible shortcuts for efficiently upscaled updates of existing elevation models".

Knudsen, Thomas; Aasbjerg Nielsen, Allan

2013-04-01

94

Airborne flux measurements of CO{sub 2}, sensible, and latent heat over the Hudson Bay lowland  

SciTech Connect

This article describes the results of aerial surveys conducted in 1990 over the Hudson Bay Lowland as part of the Northern Wetlands Study by the National Research Council of Ottawa, Canada. Two aerial runs of approximately 100 kilometers in length were completed from James Bay to the Kinosheo Lake area. Atmospheric research aircraft was used to measure the spatial and temporal variations in carbon dioxide, water, and sensible heat fluxes over the wetlands areas. The data collected as part of this study and interpretation of the results are presented in this paper. 27 refs., 10 figs., 4 tabs.

Desjardins, R.L.; Hayhoe, H.N. [Centre for Land and Biological Resources Research, Ottawa (Canada)] [Centre for Land and Biological Resources Research, Ottawa (Canada); MacPherson, J.I. [Institute for Aerospace Research, Ottawa (Canada)] [Institute for Aerospace Research, Ottawa (Canada); Schuepp, P.H. [McGill Univ., Quebec (Canada)] [McGill Univ., Quebec (Canada)

1994-01-20

95

A two-concentric-loop iterative method in estimation of displacement height and roughness length for momentum and sensible heat  

NASA Astrophysics Data System (ADS)

A two-concentric-loop iterative (TCLI) method is proposed to estimate the displacement height and roughness length for momentum and sensible heat by using the measurements of wind speed and air temperature at two heights, sensible heat flux above the crop canopy, and the surface temperature of the canopy. This method is deduced theoretically from existing formulae and equations. The main advantage of this method is that data measured not only under near neutral conditions, but also under unstable and slightly stable conditions can be used to calculate the scaling parameters. Based on the data measured above an Acacia Saligna agroforestry system, the displacement height ( d 0) calculated by the TCLI method and by a conventional method are compared. Under strict neutral conditions, the two methods give almost the same results. Under unstable conditions, d 0 values calculated by the conventional method are systematically lower than those calculated by the TCLI method, with the latter exhibiting only slightly lower values than those seen under strictly neutral conditions. Computation of the average values of the scaling parameters for the agroforestry system showed that the displacement height and roughness length for momentum are 68% and 9.4% of the average height of the tree canopy, respectively, which are similar to percentages found in the literature. The calculated roughness length for sensible heat is 6.4% of the average height of the tree canopy, a little higher than the percentages documented in the literature. When wind direction was aligned within 5 ° of the row direction of the trees, the average displacement height calculated was about 0.6 m lower than when the wind blew across the row direction. This difference was statistically significant at the 0.0005 probability level. This implies that when the wind blows parallel to the row direction, the logarithmic profile of wind speed is shifted lower to the ground, so that, at a given height, the wind speeds are faster than when the wind blows perpendicular to the row direction.

Zhao, Wenguang; Qualls, Russell J.; Berliner, Pedro R.

2008-11-01

96

Calibration of a Land Surface Model for the Simulation of Sensible and Latent Heat Fluxes Using Three Different Methods  

NASA Astrophysics Data System (ADS)

In this paper, we compare three different procedures to calibrate land surface models. The procedures are illustrated using the Integrated Biosphere Simulator (IBIS) and a dataset collected at the Flona Tapajos km 83 Amazonian tropical rainforest site, located near Santarem, state of Para, Brazil. The three procedures are: (a) a single criterion procedure (minimization of RMSE H/LE); (b) a two criteria procedure (minimization of RMSEH + RMSELE); (c) a two-step, six-criteria procedure (our proposal). The two-step procedure first filters only the non-biased estimates and then minimizes a four parameter function. The two-step procedure guarantees a consistent non-biased estimation for the evaluated output variables, sensible heat flux (H) and latent heat flux (LE), and seems to be more robust than the other two methods, for the skill functions evaluated.

Imbuzeiro, H. M.; Costa, M. H.; Rocha, H.

2007-05-01

97

Field programmable gate array processing for an improved low-light-level imaging system with higher detection sensibility.  

PubMed

The method which employs the frame accumulation and shaped function is effective in low-light-level imaging. However, it has drawbacks of lower imaging speed and complex operation. To optimize the method, we provide the design of an improved low-light-level imaging system with higher detection sensibility. The design is developed specifically for a faster imaging speed based on field programmable gate arrays. It features the use of least-square algorithm and a saw-tooth wave varied light applied to the image sensor. By manipulation of the video signal in synchronous dynamic random access memory, a low-light-level image which was previously undetectable can be estimated. The design simplifies the imaging process and doubles the imaging speed, and makes the system adapted to long range imaging. PMID:24880380

Tang, Hongying; Yu, Zhengtao

2014-05-01

98

Field programmable gate array processing for an improved low-light-level imaging system with higher detection sensibility  

NASA Astrophysics Data System (ADS)

The method which employs the frame accumulation and shaped function is effective in low-light-level imaging. However, it has drawbacks of lower imaging speed and complex operation. To optimize the method, we provide the design of an improved low-light-level imaging system with higher detection sensibility. The design is developed specifically for a faster imaging speed based on field programmable gate arrays. It features the use of least-square algorithm and a saw-tooth wave varied light applied to the image sensor. By manipulation of the video signal in synchronous dynamic random access memory, a low-light-level image which was previously undetectable can be estimated. The design simplifies the imaging process and doubles the imaging speed, and makes the system adapted to long range imaging.

Tang, Hongying; Yu, Zhengtao

2014-05-01

99

Belonging and "Achieving" in the Free Market of Education: A Study on Students' Sensibilities in an Aotearoa/New Zealand School.  

ERIC Educational Resources Information Center

School reform in New Zealand in the 1990s greatly affected funding strategies and school social dynamics. This paper investigates the effects of per-pupil funding and the track system on the sensibilities of students in one New Zealand secondary school. Per-pupil funding and the track system are used in an effort to attract parents (consumers) and…

Doerr, Neriko Musha

100

A Comparative Study of Free Information Retrievals and a Suggested Sensible Approach to the Internet by Adopting a Specific Search Topic “Apoptosis”  

Microsoft Academic Search

A comparative study of information retrieval from the Internet was pursued by adopting a specific search topic “apoptosis.” The search engines and databases used were those without a service charge. The search process was examined from a sensible perspective. One hundred and forty-five records were retrieved from Lycos and 490 from Open Text. Those two were fairly comprehensive search tools.

Eiichi Akaho; Dan Tinianow

1996-01-01

101

Global patterns of land-atmosphere fluxes of carbon dioxide, latent heat, and sensible heat derived from eddy covariance, satellite, and meteorological observations  

Microsoft Academic Search

We upscaled FLUXNET observations of carbon dioxide, water, and energy fluxes to the global scale using the machine learning technique, model tree ensembles (MTE). We trained MTE to predict site-level gross primary productivity (GPP), terrestrial ecosystem respiration (TER), net ecosystem exchange (NEE), latent energy (LE), and sensible heat (H) based on remote sensing indices, climate and meteorological data, and information

Martin Jung; Markus Reichstein; Hank A. Margolis; Alessandro Cescatti; Andrew D. Richardson; M. Altaf Arain; Almut Arneth; Christian Bernhofer; Damien Bonal; Jiquan Chen; Damiano Gianelle; Nadine Gobron; Gerald Kiely; Werner Kutsch; Gitta Lasslop; Beverly E. Law; Anders Lindroth; Lutz Merbold; Leonardo Montagnani; Eddy J. Moors; Dario Papale; Matteo Sottocornola; Francesco Vaccari; Christopher Williams

2011-01-01

102

Estimating sensible heat exchange between screen-covered canopies and the atmosphere using the surface renewal technique  

NASA Astrophysics Data System (ADS)

Screenhouses and screen-covers are widely used in arid and semi-arid agriculture to protect crops from direct solar radiation and high wind speed, and to increase water use efficiency. However, accurate estimation of crop water use under screens is still a challenge. The most reliable method that directly measures evapotranspiration, the Eddy Covariance (EC), is both expensive and complex in data collection and processing. This renders it unfeasible for day to day use by farmers. A simpler alternative is the Surface Renewal (SR) technique which utilizes high frequency temperature readings of low-cost fine-wire thermocouples, to estimate the sensible heat flux. Assuming energy conservation and employing relatively cheap complementary measurements, the evapotranspiration can be estimated. The SR technique uses a structure function mathematical analysis that filters out noise and involves a time lag parameter to provide amplitude and time period of a ramp-like temperature signal. This behavior arises from the detachment of air parcels that have been heated or cooled near the surface and sequentially renewed by air parcels from above. While the SR technique is relatively simple to employ, it requires calibration against direct measurements. The aim of this research is to investigate the applicability of the SR technique in two different types of commonly used screenhouses in Israel. Two field campaigns were carried out: In the first campaign we studied a banana plantation grown in a shading screenhouse located in the coastal plain of northern Israel. The second campaign was located in the Jordan Valley region of eastern Israel, where a pepper plantation cultivated in an insect-proof screenhouse, with a much denser screen, was examined. In the two campaigns, SR sensible heat flux estimates were calibrated against simultaneous eddy covariance measurements. To optimize the SR operation, in each campaign fine-wire (50-76 ?m) exposed T-type thermocouples were placed at several heights. Thermocouple output was continuously recorded at 10 Hz and data analysis was performed at 10, 5, 2 and 1 Hz to examine the validity of low frequency data acquisition. Results for daytime hours revealed temperature ramp amplitudes of up to 2ºC, with ramp periods spanning from several to tens of seconds. Best linear regressions between EC and SR sensible heat fluxes during validation were obtained for the thermocouples located above the screen, 0.1 m above the shading screen and 0.45 m above the insect-proof screen. The coefficients of determination were generally higher for the shading than the insect-proof screenhouses. This was due to the effect of the insect-proof screen which induces a higher resistance to airflow than the more porous shading screen that covers the banana plantation. At both campaigns, results were better for unstable than for stable boundary layers. At unstable conditions and above the canopy, low frequency data analysis produced reasonable results, such that 2 Hz analysis performed as good as 10 Hz. Parameters like turbulence intensity, two-point correlation and quadrant analysis illustrate the effect of the two different screenhouses on turbulence characteristics of the flow.

Mekhmandarov, Yonatan; Achiman, Ori; Pirkner, Moran; Tanny, Josef

2014-05-01

103

Estimating sensible heat exchange between screen-covered canopies and the atmosphere using the surface renewal technique  

NASA Astrophysics Data System (ADS)

Screenhouses and screen-covers are widely used in arid and semi-arid agriculture to protect crops from direct solar radiation and high wind speed, and to increase water use efficiency. However, accurate estimation of crop water use under screens is still a challenge. The most reliable method that directly measures evapotranspiration, the Eddy Covariance (EC), is both expensive and complex in data collection and processing. This renders it unfeasible for day to day use by farmers. A simpler alternative is the Surface Renewal (SR) technique which utilizes high frequency temperature readings of low-cost fine-wire thermocouples, to estimate the sensible heat flux. Assuming energy conservation and employing relatively cheap complementary measurements, the evapotranspiration can be estimated. The SR technique uses a structure function mathematical analysis that filters out noise and involves a time lag parameter to provide amplitude and time period of a ramp-like temperature signal. This behavior arises from the detachment of air parcels that have been heated or cooled near the surface and sequentially renewed by air parcels from above. While the SR technique is relatively simple to employ, it requires calibration against direct measurements. The aim of this research is to investigate the applicability of the SR technique in screenhouses in two different climatic regions in Israel. Two field campaigns were carried out: In the first campaign we studied a banana plantation grown in a shading screenhouse in the coastal plane of northern Israel. In the second campaign a pepper plantation cultivated in an insect-proof screenhouse in the Jordan Valley region of eastern Israel was examined. In the two campaigns, SR sensible heat flux estimates were calibrated against simultaneous eddy covariance measurements. To optimize the SR operation, in each campaign fine-wire (50 - 78 ?m) exposed T-type thermocouples were placed at several heights. Thermocouple output was continuously recorded at 10 Hz and data analysis was performed at 10, 5, 2 and 1 Hz to examine the validity of low frequency data acquisition. Results for daytime hours revealed temperature ramp amplitudes of up to 2°C. Best linear regressions between EC and SR sensible heat fluxes during validation were obtained for the thermocouples located adjacent to the screen, for both banana and pepper screenhouses. The coefficients of determination were generally higher for the banana than the pepper screenhouses. This was due to the effect of the insect-proof screen which induces a higher resistance to airflow than the light shading screen that covers the banana plantation. At both campaigns, results were better for unstable than for stable boundary layers. At stable conditions, and at unstable conditions above the canopy, low frequency data analysis produced reasonable results, such that 2 Hz analysis performed as good as 10 Hz. Parameters like turbulence intensity, two-point correlation and quadrant analysis illustrate the effect of the two different screenhouses on turbulence characteristics of the flow.

Tanny, J.; Mekhmandarov, Y.; Achiman, O.; Pirkner, M.

2013-12-01

104

In-situ Modelisation of a Greenhouse Climate Including Sensible Heat, Water Vapour and CO2 Balances  

NASA Astrophysics Data System (ADS)

While thermal structures such as greenhouses are complex to model under transient conditions because of coupled heat and mass (H2O and CO2) exchanges between their different parts, systems theory allows a simple analysis of the input/output behaviour of the model. In particular, parameters of the reduced dynamic models can be derived from in-situ measurements on these systems. This paper describes an application of the systems approach to a greenhouse climate model which incorporates CO2 balance, crop transpiration and photosynthesis and the effects of heating, CO2 enrichment, natural ventilation and evaporative cooling. In a first stage, system parameters such as the equivalent thermal mass, the wind dependent coefficient of natural ventilation and the various heat exchange coefficients were identified in situ from sequences of input-output data concerning the heat and water vapour balance, recorded over the crop production period from December to July. Good agreement between measured and computed values of air temperature, air humidity was observed. In a second stage, we have considered simultaneously the sensible heat, water vapour and CO2 exchanges and tested the model against experimental data measured using a commercial greenhouse climate control computer. The identified values of the physical and physiological parameters are close the theoretical values and the accuracy of temperature, humidity and CO2 content is rather good.

Draoui, B.; Bounaama, F.; Boulard, T.; Bibi-Triki, N.

2013-04-01

105

Biosensors: sense and sensibility.  

PubMed

This review is based on the Theophilus Redwood Medal and Award lectures, delivered to Royal Society of Chemistry meetings in the UK and Ireland in 2012, and presents a personal overview of the field of biosensors. The biosensors industry is now worth billions of United States dollars, the topic attracts the attention of national initiatives across the world and tens of thousands of papers have been published in the area. This plethora of information is condensed into a concise account of the key achievements to date. The reasons for success are examined, some of the more exciting emerging technologies are highlighted and the author speculates on the importance of biosensors as a ubiquitous technology of the future for health and the maintenance of wellbeing. PMID:23420144

Turner, Anthony P F

2013-04-21

106

Eddy covariance measurements of carbon dioxide, latent and sensible energy fluxes above a meadow on a mountain slope  

PubMed Central

Carbon dioxide, latent and sensible energy fluxes were measured by means of the eddy covariance method above a mountain meadow situated on a steep slope in the Stubai Valley/Austria, based on the hypothesis that, due to the low canopy height, measurements can be made in the shallow equilibrium layer where the wind field exhibits characteristics akin to level terrain. In order to test the validity of this hypothesis and to identify effects of complex terrain in the turbulence measurements, data were subjected to a rigorous testing procedure using a series of quality control measures established for surface layer flows. The resulting high-quality data set comprised 36 % of the original observations, the substantial reduction being mainly due to a change in surface roughness and associated fetch limitations in the wind sector dominating during nighttime and transition periods. The validity of the high-quality data set was further assessed by two independent tests: i) a comparison with the net ecosystem carbon dioxide exchange measured by means of ecosystem chambers and ii) the ability of the eddy covariance measurements to close the energy balance. The net ecosystem CO2 exchange measured by the eddy covariance method agreed reasonably with ecosystem chamber measurements. The assessment of the energy balance closure showed that there was no significant difference in the correspondence between the meadow on the slope and another one situated on flat ground at the bottom of the Stubai Valley, available energy being underestimated by 28 and 29 %, respectively. We thus conclude that, appropriate quality control provided, the eddy covariance measurements made above a mountain meadow on a steep slope are of similar quality as compared to flat terrain.

Hammerle, Albin; Haslwanter, Alois; Schmitt, Michael; Bahn, Michael; Tappeiner, Ulrike; Cernusca, Alexander; Wohlfahrt, Georg

2014-01-01

107

Uncertainty analysis for satellite derived sensible heat fluxes and scintillometer measurements over Savannah environment and comparison to mesoscale meteorological simulation results  

Microsoft Academic Search

Three methods for estimating instantaneous sensible heat flux (H) over Savannah environment in West Africa were compared: first, satellite derived estimations using the Surface Energy Balance Algorithm for Land (SEBAL) method [Bastiaanssen, W.G.M., Menenti, M., Feddes, R.A., Holtslag, A.A.M., 1998a. A remote sensing energy balance algorithm for land, SEBAL: 1. Formulation. J. Hydrol. 212–213, 198–212]; secondly, measurements at two test

A. Marx; H. Kunstmann; D. Schüttemeyer; A. F. Moene

2008-01-01

108

Do not change the numbers--clarify the message. The government review of the Sensible Drinking message: a Medical Council on Alcoholism view.  

PubMed

This is an edited version of the evidence from The Medical Council on Alcoholism (MCA) on 'Sensible Drinking', which is based on the collective views of the Education and Public Health Committee and of The MCA Regional Advisers in medical schools throughout the UK. The contributors are not only university teachers, but also clinicians and health service providers in touch with patients and the public. On one aspect there is total unanimity. On no account should the 21/14 units per week figures for men and women, respectively, be changed: the evidence indicates that this could only lead to increased harm. There seems to be some scope for restatement of the significance of the benchmark such as that 'below 21/14 units per week is a sensible level, and that, at twice this level, there is an appreciable increase in risk of harm which continues to increase as consumption rises'. Drink-free days are recommended, but the need to suggest an additional curb on intake on any given occasion is also emphasized, since heavy consumption of this sort is that which is particularly associated with behavioural and psychosocial problems, notably in the young. Driving is an obvious example where any drinking could be dangerous. A simple statement such as 'avoid intoxication and do not exceed 6/4 units in a day, while maintaining the weekly guidelines as at present and bearing in mind the circumstances' is proposed. PMID:8554638

1995-09-01

109

Sensible Semantics of Imperfect Information  

NASA Astrophysics Data System (ADS)

In [1] Cameron and Hodges proved, by means of a combinatorial argument, that no compositional semantics for a logic of Imperfect Information such as Independence Friendly Logic [2] or Dependence Logic ([3]) may use sets of tuples of elements as meanings of formulas.

Galliani, Pietro

110

Validating Patterns in Large Scale Sensible and Latent Heat Flux Estimates from a Remote Sensing-based Model and Aircraft-based Flux Measurements  

NASA Astrophysics Data System (ADS)

A remote sensing field experiment conducted in the Southern Great Plains in 1997 (SGP97) in central Oklahoma, had aircraft-based flux observations as well as remotely sensed data collected over one of the main study sites in central Oklahoma. This agricultural region contains primarily grassland/pasture and winter wheat, which was recently harvested leaving a significant number of fields either as wheat stubble or plowed bare soil. Multi-spectral data obtained by aircraft provided high resolution (30 m) spatially-distributed vegetation cover and surface temperature information over an area approximately 10 km north-south by 30 km east-west. The spatial variations in these surface states strongly affect the partitioning of surface fluxes between sensible and latent heat. These data, together with coarser resolution (5 km) satellite data, are used in a remote sensing-based energy balance modeling system that disaggregates flux estimates to the 30 m resolution. From the aircraft-based measurements collected along the 15 km transect, "segmented" flux values over 1 km sampling intervals were computed, which were then sub-sampled using a 250 m moving window using a new scheme for estimating time-space dependence of aircraft surface fluxes. From these two estimates of the large scale heat flux patterns, a comparison is made for exploring consistency in flux distributions. This type of comparison involves estimation of the flux-footprint or source area for the aircraft flux observations in order to weight the upwind model pixels within the aircraft sensor footprint. Highest correlation between aircraft and modeled estimated heat and water vapor fluxes were obtained using different flux-footprint estimates with the source-area for heat estimated to be much closer to the aircraft flight line than for water vapor. Factors that may be contributing to these results are discussed.

Kustas, W. P.; Anderson, M. C.

2005-05-01

111

Active Tactile Sensibility of Single-Tooth Implants versus Natural Dentition: A Split-Mouth Double-Blind Randomized Clinical Trial.  

PubMed

BACKGROUND: Unlike passive sensitivity of implants/teeth that is assessed more, only three controversial studies have compared active tactile sensibility (ATS) of implants and teeth. PURPOSE: We aimed to explore the difference between the ATS of teeth and single-tooth implants. METHODS: The ATS of single-tooth implants and contralateral teeth was measured in 25 patients after they bit on gold and placebo foils 0- to 70-?m thick, each for five times, in a random order blinded to patients and assessor, carried out at two sessions. Based on the experimental range of 0??m (mock trials) to 70??m, the sigmoid shape of psychometric curve was estimated to locate the 50% values as the ATS thresholds for each tooth or implant. ATS Data were analyzed using paired and unpaired t-tests and multiple linear regression (??=?0.05, ????0.1). Also, equivalence testing approach was used to assess semi-objectively the clinical significance. RESULTS: Average ATS values for teeth and implants were 21.4?±?6.55??m and 30.0?±?7.55??m, respectively (p?=?.0001 [paired t-test]). None of the geometric characteristics of implants nor duration of implant in function were correlated with the ATS (p?>?.4 [regression]). Age was positively associated with the ATS of both implants and teeth (p???.019 [regression]). Tooth ATS (but not implant ATS) was significantly higher in males compared with females (p?=?.050 [unpaired t-test]), which contributed to a generalizable tooth-implant difference higher than 8-?m clinical equivalence margin in females. The ATS was not significantly different between arches or between anterior/posterior regions (p?>?.6). CONCLUSION: There was a slight but statistically significant difference between implant and tooth tactile sensitivities. PMID:23490397

Kazemi, Mahmoud; Geramipanah, Farideh; Negahdari, Ramin; Rakhshan, Vahid

2013-03-14

112

Global patterns of land-atmosphere fluxes of carbon dioxide, latent heat, and sensible heat derived from eddy covariance, satellite, and meteorological observations  

NASA Astrophysics Data System (ADS)

We upscaled FLUXNET observations of carbon dioxide, water, and energy fluxes to the global scale using the machine learning technique, model tree ensembles (MTE). We trained MTE to predict site-level gross primary productivity (GPP), terrestrial ecosystem respiration (TER), net ecosystem exchange (NEE), latent energy (LE), and sensible heat (H) based on remote sensing indices, climate and meteorological data, and information on land use. We applied the trained MTEs to generate global flux fields at a 0.5° × 0.5° spatial resolution and a monthly temporal resolution from 1982 to 2008. Cross-validation analyses revealed good performance of MTE in predicting among-site flux variability with modeling efficiencies (MEf) between 0.64 and 0.84, except for NEE (MEf = 0.32). Performance was also good for predicting seasonal patterns (MEf between 0.84 and 0.89, except for NEE (0.64)). By comparison, predictions of monthly anomalies were not as strong (MEf between 0.29 and 0.52). Improved accounting of disturbance and lagged environmental effects, along with improved characterization of errors in the training data set, would contribute most to further reducing uncertainties. Our global estimates of LE (158 ± 7 J × 1018 yr-1), H (164 ± 15 J × 1018 yr-1), and GPP (119 ± 6 Pg C yr-1) were similar to independent estimates. Our global TER estimate (96 ± 6 Pg C yr-1) was likely underestimated by 5-10%. Hot spot regions of interannual variability in carbon fluxes occurred in semiarid to semihumid regions and were controlled by moisture supply. Overall, GPP was more important to interannual variability in NEE than TER. Our empirically derived fluxes may be used for calibration and evaluation of land surface process models and for exploratory and diagnostic assessments of the biosphere.

Jung, Martin; Reichstein, Markus; Margolis, Hank A.; Cescatti, Alessandro; Richardson, Andrew D.; Arain, M. Altaf; Arneth, Almut; Bernhofer, Christian; Bonal, Damien; Chen, Jiquan; Gianelle, Damiano; Gobron, Nadine; Kiely, Gerald; Kutsch, Werner; Lasslop, Gitta; Law, Beverly E.; Lindroth, Anders; Merbold, Lutz; Montagnani, Leonardo; Moors, Eddy J.; Papale, Dario; Sottocornola, Matteo; Vaccari, Francesco; Williams, Christopher

2011-09-01

113

Time-lagged impact of spring sensible heat over the Tibetan Plateau on the summer rainfall anomaly in East China: case studies using the WRF model  

NASA Astrophysics Data System (ADS)

This study explores the time-lagged impact of the spring sensible heat (SH) source over the Tibetan Plateau (TP) on the summer rainfall anomaly in East China using the Weather Research and Forecasting model. Numerical experiments for 2003 indicate that a spring SH anomaly over the TP can maintain its impact until summer and lead to a strong atmospheric heat source, characterized both by the enhanced SH over the western TP and enhanced latent heat of condensation to the east. Wave activity diagnosis reveals that the enhanced TP heating forces a Rossby wave train over the downstream regions. A cyclonic response over the northeast TP brings about a low-level northerly anomaly over northern China, while an anticyclonic response over the western Pacific enhances the subtropical high and the low-level southerly on its western flank. As a result, cold and dry airflow from mid-high latitudes, and warm and wet airflow from tropical oceans converge around the Huaihe River basin. In addition, warm advection originating from the TP induces vigorous ascending motion over the convergence belt. Under these favorable circulation conditions the eastward-propagating vortexes initiated over the TP intensify the torrential rainfall processes over the Huaihe River basin. In contrast, additional experiments considering the year 2001 with weak spring SH over the TP and an overall southward retreat of the summer rainfall belt in East China further demonstrate the role of spring SH over the TP in regulating the interannual variability of EASM in terms of wave activity and synoptic disturbances.

Wang, Ziqian; Duan, Anmin; Wu, Guoxiong

2014-06-01

114

Time-lagged impact of spring sensible heat over the Tibetan Plateau on the summer rainfall anomaly in East China: case studies using the WRF model  

NASA Astrophysics Data System (ADS)

This study explores the time-lagged impact of the spring sensible heat (SH) source over the Tibetan Plateau (TP) on the summer rainfall anomaly in East China using the Weather Research and Forecasting model. Numerical experiments for 2003 indicate that a spring SH anomaly over the TP can maintain its impact until summer and lead to a strong atmospheric heat source, characterized both by the enhanced SH over the western TP and enhanced latent heat of condensation to the east. Wave activity diagnosis reveals that the enhanced TP heating forces a Rossby wave train over the downstream regions. A cyclonic response over the northeast TP brings about a low-level northerly anomaly over northern China, while an anticyclonic response over the western Pacific enhances the subtropical high and the low-level southerly on its western flank. As a result, cold and dry airflow from mid-high latitudes, and warm and wet airflow from tropical oceans converge around the Huaihe River basin. In addition, warm advection originating from the TP induces vigorous ascending motion over the convergence belt. Under these favorable circulation conditions the eastward-propagating vortexes initiated over the TP intensify the torrential rainfall processes over the Huaihe River basin. In contrast, additional experiments considering the year 2001 with weak spring SH over the TP and an overall southward retreat of the summer rainfall belt in East China further demonstrate the role of spring SH over the TP in regulating the interannual variability of EASM in terms of wave activity and synoptic disturbances.

Wang, Ziqian; Duan, Anmin; Wu, Guoxiong

2013-05-01

115

Early exposure to caffeine affects gene expression of adenosine receptors, DARPP-32 and BDNF without affecting sensibility and morphology of developing zebrafish (Danio rerio).  

PubMed

Adenosine receptors are the most important biochemical targets of caffeine, a common trimethylxanthine found in food and beverages. Adenosine plays modulatory action during the development through adenosine receptors and their intracellular pathways activation. In this study, we aimed to evaluate if caffeine gave to zebrafish in the very first steps of development is able to affect its direct targets, through the adenosine receptors mRNA expression evaluation, and latter indirect targets, through evaluation of the pattern of dopamine and cAMP-regulated phosphoprotein and brain-derived neurotrophic factor (BDNF) mRNA expression. Here, we demonstrate that zebrafish express adenosine receptor subtypes (A1, A2A1, A2A2 and A2B) since 24h post-fertilization (hpf) and that caffeine exposure is able to affect the expression of these receptors. Caffeine exposure from 1 hpf is able to increase A1 expression at 72-96 hpf and A2A1 expression at 72 hpf. No alterations occurred in A2A2 and A2B expression after caffeine treatment. DARPP-32, a phosphoprotein involved in adenosine intracellular pathway is also expressed since 24 hpf and early exposure to caffeine increased DARPP-32 expression at 168 hpf. We also evaluate the expression of BDNF as one of the targets of adenosine intracellular pathway activation. BDNF was also expressed since 24 hpf and caffeine treatment increased its expression at 48 and 72 hpf. No morphological alterations induced by caffeine treatment were registered by the check of general body features and total body length. Assessment of tactile sensibility also demonstrated no alterations by caffeine treatment. Altogether, these results suggest that caffeine is able to affect expression of its cellular targets since early phases of development in zebrafish without affect visible features. The up-regulation of direct and indirect targets of caffeine presents as a compensatory mechanism of maintenance of adenosinergic modulation during the developmental phase. PMID:21914471

Capiotti, Katiucia Marques; Menezes, Fabiano Peres; Nazario, Luiza Reali; Pohlmann, Julhana Bianchini; de Oliveira, Giovanna M T; Fazenda, Lidiane; Bogo, Maurício Reis; Bonan, Carla Denise; Da Silva, Rosane Souza

2011-01-01

116

Observations of the scale-dependent turbulence and evaluation of the flux-gradient relationship for sensible heat for a closed Douglas-Fir canopy in very weak wind conditions  

NASA Astrophysics Data System (ADS)

Observations of the scale-dependent turbulent fluxes and variances above, within and beneath a tall closed Douglas-Fir canopy in very weak winds are examined. The daytime subcanopy vertical velocity spectra exhibit a double-peak structure with peaks at time scales of 0.8 s and 51.2 s. A double-peak structure is also observed in the daytime subcanopy heat flux cospectra. The daytime momentum flux cospectra inside the canopy and in the subcanopy are characterized by a relatively large cross-wind component, likely due to the extremely light and variable winds, such that the definition of a mean wind direction, and subsequent partitioning of the momentum flux into along- and cross-wind components, has little physical meaning. Positive values of both momentum flux components in the subcanopy contribute to upward transfer of momentum, consistent with the observed mean wind speed profile. In the canopy at night at the smallest resolved scales, we find relatively large momentum fluxes (compared to at larger scales), and increasing vertical velocity variance with decreasing time scale, consistent with very small eddies likely generated by wake shedding from the canopy elements that transport momentum but not heat. We find unusually large values of the velocity aspect ratio within the canopy, consistent with enhanced suppression of the horizontal wind components compared to the vertical by the canopy. The flux-gradient approach for sensible heat flux is found to be valid for the subcanopy and above-canopy layers when considered separately; however, single source approaches that ignore the canopy fail because they make the heat flux appear to be counter-gradient when in fact it is aligned with the local temperature gradient in both the subcanopy and above-canopy layers. Modeled sensible heat fluxes above dark warm closed canopies are likely underestimated using typical values of the Stanton number.

Vickers, D.; Thomas, C.

2014-05-01

117

Determination of the Sensibility Factors for TLD-100 Powder on the Energy of X-Ray of 50, 250 kVp; 192Ir, 137Cs and 60Co  

SciTech Connect

TLD-100 powder is calibrated in terms of absorbed dose to water Dw, using the protocols AAPM TG61, AAPM TG43 and IAEA-TRS 398, for the energy of RX 50, 250 kVp, 137Cs and 60Co respectively. The calibration curves, TLD Response R versus Dw, are fitted by weighted least square by a quadratic polynomials; which are validated with the lack of fit and the Anderson-Darling normality test. The slope of these curves corresponds to the sensibility factor: Fs R/DW, [Fs] = nC Gy-1. The expanded uncertainties U's for these factors are obtained from the ANOVA tables. Later, the Fs' values are interpolated using the effective energy hvefec for the 192Ir. The SSDL sent a set of capsules with powder TLD-100 for two Hospitals. These irradiated them a nominal dose of Dw = 2 Gy. The results determined at SSDL are: for the Hospital A the Dw is overestimated in order to 4.8% and the Hospital B underestimates it in the range from -1.4% to -17.5%.

Loaiza, Sandra P. [Fac. de Medicina, Universidad Autonoma del Estado de Mexico (Mexico); Alvarez, Jose T. [SSDL, Departamento de Metrologia ININ, Salazar, Estado de Mexico 15245 (Mexico)

2006-09-08

118

Les secteurs sensibles de l'industrie  

Microsoft Academic Search

[spa] Los sectores vulnerables de la industria - A partir de una clasificación pormenorizada de 600 productos industriales, las actividades industriales fueron clasificadas según sus respectivos comportamientos potenciales en el mercado, estimados a partir de su evolución entre 1970 y 1977. Se retuvo tres tipos de mercado, o sea : favorable, mediano y desfavorable. Al parecer, puede desprenderse de este

Michel Hannoun; Jean-Claude Dutailly

1980-01-01

119

[Resurfacing of the humeral head : sensible indications].  

PubMed

Cup resurfacing of the humeral head is one of the possible prosthetic solutions for severe destruction of the glenohumeral joint. Because neurological complications are not uncommon after total shoulder arthroplasty using surface replacement, these cups are indicated when hemiarthroplasty is possible. The advantages of humeral head resurfacing are bone preservation and the technically easy exchange if revision is necessary; therefore, young patients are candidates for this type of endoprosthesis. At present humeral head resurfacing is indicated for osteoarthritic destruction of Walch types A1 and C, for rheumatic destruction with deficient cuff in younger patients, cuff arthropathy in younger patients with Seebauer types 1A and 1B, humeral head necrosis with normal glenoid and necrotic bone in less than one third of the humeral head and dislocation arthropathy in younger patients. PMID:23695191

Fink, B; Niemeier, A; Rüther, W

2013-07-01

120

A Sensible Approach to Wireless Networking.  

ERIC Educational Resources Information Center

Discusses radio frequency (R.F.) wireless technology, including industry standards, range (coverage) and throughput (data rate), wireless compared to wired networks, and considerations before embarking on a large-scale wireless project. (EV)

Ahmed, S. Faruq

2002-01-01

121

Leaves of Citrus aurantifolia exhibit a different sensibility to solar UV-B radiation according to development stage in relation to photosynthetic pigments and UV-B absorbing compounds production.  

PubMed

Plants of Citrus aurantifolia grown in a greenhouse without solar UV radiation (UVR) were transferred outdoors to evaluate the effect of solar UV-B radiation (UVBR, 280-315 nm) in prior-developed leaves, constituted by apical bud and those fully expanded before being taken outdoors, and post-developed leaves, formed by those expanded outdoors. Results demonstrated that over a 40 d outdoor period leaf chlorophyll content and distribution pattern were different with and without solar UVBR. Chlorophyll a, chlorophyll b and total chlorophyll contents in both treatments were higher in prior-developed leaves than in post-developed ones. However, highest values were observed in prior-developed leaves under solar UVBR, whereas in post-developed leaves an opposite trend was observed. Carotenoids content in prior-developed leaves was higher with solar UVBR, whereas in post-developed leaves there were no significant differences in both with and without solar UVBR. In addition, prior-developed leaves under solar UVBR accumulated flavonoids, but not anthocyanins. Growth parameters (e.g. DW, DW/FW ratio, LMA, plant height, length and width of foliar lamina) did not show significant differences between plants grown with and without solar UVBR. Thus, our results demonstrated that C. aurantifolia leaves exhibited a different sensibility to solar UVBR according to development stage in relation to photosynthetic pigments and UV-B absorbing compounds production. In addition, the solar UVBR was not necessary as inductor of photosynthetic protection mechanisms in a short-time growth period. On the other hand, our results also demonstrated that solar UVBR acted as an effective feeding deterrent against citrus leafminer. PMID:18272387

Ibañez, Silvina; Rosa, Mariana; Hilal, Mirna; González, Juan A; Prado, Fernando E

2008-03-28

122

Los Pigmentos Vegetales y la Fotosíntesis  

NSDL National Science Digital Library

En esta lección se examinarán las dos principales clases de pigmentos fotosintéticos: las clorofilas y los carotenoides. Se analizarán sus estructuras bioquímicas y su biosíntesis, y se explicará además la organización de estos pigmentos en los sistemas fotosintéticos, que son complejos proteicos que colectan y convierten la energía luminosa en energía química.

123

The invasion of non-native grasses into California grasslands has caused a shift in energy partitioning between latent and sensible heat flux, reduced albedo and higher surface temperatures  

NASA Astrophysics Data System (ADS)

In California, native grasses have been largely displaced across millions of acres of grassland habitat by the invasion of non-native grasses from Mediterranean Europe. Although seemingly subtle, this shift in grass species composition has altered the water and energy cycles in these ecosystems due to a shift in life cycle strategy. Native California grasses are perennial and long-lived. To survive California's long summer drought, they possess deep roots to harvest moisture along the full depth of the soil profile. Aboveground, most California perennial grasses are bunchy and dense, covering the ground and restricting soil evaporation. Their growing season extends over most of the year, thus maintaining an unbroken interaction along the soil-plant-atmosphere continuum, and enabling the plants to draw water from deep soil layers well into the dry summer. In contrast, the now-dominant non-native grasses are annuals. They grow from seed each year when Autumn rains begin, and die with the onset of summer drought. Aboveground, non-native annuals are sparse relative to native perennials, and possess a shallow root system with the large majority of root biomass above 20 cm depth. To determine the impact of this land cover shift on ecosystem water and energy cycles, we measured the components of the surface energy balance at a grassland site in northern coastal California where remnant perennial grasses are found growing alongside regions that have undergone non-native invasion. Specifically, in locations dominated by each grass type, we measured net radiation and ground and canopy heat flux through the surface renewal method. We also measured midday PAR albedo to determine the impact of grassland invasion on energy capture. In three years of measurements, corresponding to average, wet and dry years, we found that energy partitioning during the growing season is similar between grass types. However, once non-native annual grasses senesce in mid to late spring, the ratio of latent to sensible heat flux is higher where native perennial grasses are found, particularly in wet years. Annual sums of total evaporation are likewise higher in native-dominated regions, and soil moisture is lower relative to non-natives in the deep soil. We also found that PAR albedo is lower in native grasslands compared to non-natives during significant portions of the year, and corresponding to the hotter months. In all, our findings indicate that the non-native annual grasses which now dominate California grasslands, promote conditions that support higher surface temperatures relative to native perennial grasses.

Koteen, L. E.; Harte, J.; Baldocchi, D. D.

2012-12-01

124

Developing Pathic Sensibilities: A Critical Priority for Teacher Education Programmes  

ERIC Educational Resources Information Center

This paper reports on a hermeneutic phenomenological research inquiry which explored "lived experiences" of the teacher-student relationship in teacher education. An essential understanding from this research is that teachers and students experience their relationship as a play that is uncertain and lived beyond the rules of engagement. Teachers…

Giles, David

2010-01-01

125

Dr. Spock on Parenting: Sensible, Reassuring Advice for Contemporary Parents.  

ERIC Educational Resources Information Center

Compiling essays authored by Benjamin Spock and published in magazines, this book addresses the changing traditional family structure and the challenges faced by contemporary parents. The chapters are: (1) "Anxieties in Our Lives," discussing stressors, decisions regarding work, and late parenting; (2) "Being a Father Today," examining aspects of…

Spock, Benjamin

126

Asbestos in Korean Buildings, Safety Concerns, and Sensible Risk Assessment  

Microsoft Academic Search

In spite of concerns by some, chrysotile or white asbestos continues to be used throughout much of the world although several countries have questioned its safety and a number of them have decided to ban its use for any purpose. The reason is largely because the commercial exploitation over a century ago was carried through with little regard for health

Jeong Tai Kim; John A. Hoskins

2010-01-01

127

Healthful and Sensible School Maintenance (with Related Video)  

ERIC Educational Resources Information Center

The school year is back in full swing for millions of students across the nation trying to remember the names of their new teachers, what time lunch is served, and how to navigate the hallways and stairwells to get from one classroom to the next. Meanwhile, those responsible for keeping those education facilities clean, safe and well-maintained…

Kennedy, Mike

2012-01-01

128

Energy and the environment: A sensible, no regrets'' proposal  

Microsoft Academic Search

America, it seems, uses too much energy. Thus, the government prepares to issue a new round of federal energy efficiency standards for all manner of household appliances. The Sierra Club insists that the federal government increase Corporate Average Fuel Economy (CAFE) standards for automobiles and trucks. Other groups push electric cars. The Clinton Administration, for its part, wants the federal

Adler

2009-01-01

129

The Education of Story Lovers: Do Computers Undermine Narrative Sensibility?  

ERIC Educational Resources Information Center

This article argues that computers, at least in their common or prevalent uses, constitute an important undermining influence on people's ability to tell, enjoy listening to, view, and read good stories. We discuss the centrality of narrative in defining our humanity and in educating our children, and justify the emphasis on "good" stories,…

Gordon, David; Alexander, Gad

2005-01-01

130

Proprioceptive sensibility in women with normal and osteoarthritic knee joints  

Microsoft Academic Search

The objective of this study was to quantify the effect of degenerative joint change on the proprioceptive acuity of women with osteoarthritis (OA) of the knee. Middle-aged women with OA of the knee, age-matched healthy women, and younger healthy women were studied. Tests examined the ability of subjects to correctly reproduce knee angles in weightbearing and non-weightbearing situations. The knee

R. Marks; H. A. Quinney; J. Wessel

1993-01-01

131

Sensibility: A New Focus in Sami Health Care Education  

ERIC Educational Resources Information Center

Colonialism has had significant bodily impacts on Indigenous peoples through medicine. Excluded from the German race, Sami have been burdened by mainstream prejudices which perpetuate myths about Sami having poor genetic material and, as a consequence, having an inferior culture and language. This offensive burden and subsequent humiliation has…

Nymo, Randi

2007-01-01

132

Bodily sensibility: vocabularies of the discredited male body  

Microsoft Academic Search

Warning: this article contains strong language.This paper explores how men might interpret and respond to a masculine bodily aesthetic in the wake of the putative obesity epidemic that reportedly affects most men in Western nations. This aesthetic, legitimated through discourses of health and risk management, is also shaped by popular representations of lean, toned and hard male bodies and their

Lee F. Monaghan; Michael Hardey

2009-01-01

133

Centralized Assessment in Graduate Medical Education: Cents and Sensibilities  

Microsoft Academic Search

Rationale The start of residency represents an ''educational handoff.'' Accreditation and credentialing organizations have called for better assessments of learner and patient outcomes and improved patient safety and quality of care. Intervention We describe the development of centralized assessments of baseline, core residency competencies at 2 institutions, and summarize principles and lessons learned for other institutions interested in developing similar

Dianne Wagner; Monica L. Lypson

2009-01-01

134

Toward a sensible EMF policy: One utility's approach  

SciTech Connect

Over the past three years, the Los Angeles Department of Water and Power (LADWP) has developed an open, proactive approach to address the electromagnetic fields (EMF) issue. Many things gave impetus to this approach: the public's increasing concern about possible health effects associated with EMF; litigation and other difficulties utilities experience when attempting to construct electric facilities; and media coverage fueling public concern about the issue. For LADWP, management of this issue involves a communications and a policy development effort, both of them significant. As an integral part of managing this issue, LADWP has taken steps to reduce fields associated with new projects on a case-by-case basis where economically justified, and supported EMF research, including support for a national EMF research program. Also, LADWP continues its full support for and participation in the Electric Power Research Institute's (EPRI) EMF research program. In the discussion here, references to EPRI reports, bulletins, and technical papers have intentionally been excluded, since their inclusion would overwhelm the footnotes to this paper. Finally, LADWP has purposefully sought additional guidance from other individuals and public policy agencies, many of whose works are cited here.

Palk, B.V. (Los Angeles Dept. of Water and Power, CA (USA))

1991-04-01

135

Correlación de Propiedades de Aceites Vegetales y Sebo Vacuno Usando Aproximantes de Padé  

Microsoft Academic Search

Padé approximants have been used to correlate some properties needed in the modeling and design of shell and tube heat exchangers used in the production of vegetables oils, beef tallow and biodiesel. Padé approximants are rational functions that have the capacity of representing complex functions with a reduce number of parameters. The properties considered were density, specific heat, viscosity and

Mónica P. Guerrero; Luis A. Toselli; José O. Valderrama

2008-01-01

136

Fibras Vegetales y su Produccion en America (Vegetable Fibers and Their Production in America).  

National Technical Information Service (NTIS)

The book lists 45 fibrous plants that are useful for commercial fiber production. Cotton and linen are excluded since they are well-known and in popular use. Fibers are classified by their structure and location in the plant: hard fibers with a rigid text...

L. H. Dewey

1964-01-01

137

Les Fibres Vegetales et Leurs Utilisations (Vegetable Fibers and Their Uses).  

National Technical Information Service (NTIS)

The paper summarizes the processing and use of vegetable fibers with special emphasis on the development of this industry in the small-scale industrial sector in various countries. Covered are several subjects relative to vegetable fibers from the process...

1966-01-01

138

Banco de huesos y tejidos FundaciÛn Cosme y DamiÆn  

Microsoft Academic Search

This is a presentation of Cosmo and Damian Foundation's, Bone and Tissue Bank, emphasizing the philosophical principles of its existence. Also mentioning both the international and local regulations that control its operation. The complexity of the processes is explained as well as a biological summary of the behavior of the grafts and tissues and some applications in otorhinolaringology and in

Luis Eduardo Fandiæo Franky; Lourdes De Larrauri

139

VEGETALES TRANSGÉNICOS: MITOS Y REALIDADES DESDE UNA PERSPECTIVA TÉCNICA TRANSGENIC PLANTS: MYTHS AND REALITIES FROM A TECHNICAL POINT OF VIEW  

Microsoft Academic Search

SUMMARY In the present review the technical aspects about a genetically modified plants and their construction (with the different used tech- niques) from transformation to regeneration of the plant, are dis- cussed. It is also discussed, from a critical and technical point of view, some of the myths frequently associated with the risks and be- nefits about the use of

Francisco José Fernández Perrino

2006-01-01

140

Return of sensibility and final outcome of breast reconstructions using free transverse rectus abdominis musculocutaneous flaps.  

PubMed

Thirty-nine patients who had had free transverse rectus abdominis musculocutaneous (TRAM) flaps were studied and interviewed 5 months to 2.3 years after the procedure. The main reason why the patients had wanted the reconstruction in the first place was difficulty with the external prosthesis. Thirty three of 39 would have had the operation again; three were hesitant, and three had regrets for reasons other than that the breast was not satisfactory. All patients considered that the symmetry of the breasts was good or satisfactory with bras; without bras, one patient thought that the symmetry was poor, and the physician thought that the symmetry was poor in nine patients. Two-point discrimination turned out to be too delicate for studying the sensitivity of the breast. When pressure sensitivity was studied with von Frey monofilaments, the threshold values were significantly lower on the lateral and medial side and under the reconstructed breast than on the opposite side. In 22 patients the lateral part, and in 23 the medial part, of the reconstructed breast was insensate. There was good or satisfactory pressure sensitivity on the lateral side in nine patients and on the medial side in eight. The return of sensitivity to the autogenous breast reconstruction was variable among the patients studied, but it did not affect their satisfaction with the reconstruction. PMID:7597387

Lapatto, O; Asko-Seljavaara, S; Tukiainen, E; Suominen, E

1995-03-01

141

Conceptual Analytical Production of High Power Fuel and High Fiber Protein through Sensible Source.  

National Technical Information Service (NTIS)

The agricultural material (corn, wheat, barley, oat, rye and molasses) was subjected to fermentation to produce high fiber protein (HFP). The product could be suitable for human consumption. Plus the liquid protein by-product could be used for animal feed...

M. Arshad

1990-01-01

142

Late results of bulbar trigeminal tractotomy. Some remarks on recovery of sensibility.  

PubMed

Re-examination of eight patients in whom bulbar trigeminal tractotomy had been performed 13 to 15 years previously showed that four had no complaints, and the other four had only very slight complaints about pain. In two patients a Spiller-Frazier operation had been performed after tractotomy, in two patients exairesis of the infraorbital or supraorbital nerve had been done. As bulbar trigeminal tractotomy is a major operation and the risk of recurrence is substantial, the indications for this type of operation have to remain very restricted. Theories to explain the recovery of sensation are discussed. It is possible that regeneration of transected fibres is responsible for the loss of analgesia. PMID:5571314

Moffie, D

1971-06-01

143

The peripheral morphological basis of tactile sensibility in the beak of geese  

Microsoft Academic Search

The distribution, form variability and organization of two types of encapsulated mechanoreceptors, the Grandry and the Herbst corpuscles, were studied in the beak of geese. (1) In the beak skin Grandry corpuscles were found 20 to 150 µ below the epidermis in the domestic goose (Anser anser) and 1 to 80 µ deep in the white-fronted goose (Anser albifrons). The

K.-M. Gottschaldt; Susanne Lausmann

1974-01-01

144

Methamphetamine use is heightening risks among gay youth. 'Club drugs' dull safe-sex sensibilities.  

PubMed

HIV clinicians and prevention programs largely have been overlooking a potent link between HIV infection and a recent epidemic of methamphetamine use across the nation. Commonly called 'club drugs,' these stimulants have become a ubiquitous part of gay nightclub and party circuit settings, leading men to engage in 'barebacking' and other risky sexual behaviors. PMID:12400463

2002-10-01

145

Sex and Sensibility: A Parent's Guide to Talking Sense about Sex.  

ERIC Educational Resources Information Center

Children who grow up in an atmosphere of openness about sexuality grow up more slowly and more responsibly. This book offers parents a new framework for talking honestly about sex and sexuality with their children. The first part of the book examines new ways of thinking and talking, while the second part addresses concrete ways of raising…

Roffman, Deborah M.

146

CLASH! Superheroic yet Sensible Strategies for Teaching the New Literacies Despite the Status Quo  

ERIC Educational Resources Information Center

This book offers ideas that secondary teachers, university content faculty, and teacher educators can use to challenge traditional literacy practices and demonstrate creative, innovative ways of incorporating new literacies into the classroom, all within a strong theoretical framework. Teachers are trying to catch up to the new challenges of the…

Vavra, Sandra, Ed.; Spencer, Sharon L., Ed.

2011-01-01

147

Para uma Percepcao de Leitura enquanto Sensibilidade (For a Perception of Reading as Sensibility).  

ERIC Educational Resources Information Center

Seeks to amplify the various discourses that have been articulated concerning reading as a builder of senses, contrasting it to reading as the decodifier of messages. States that reading requires a non-explicit, unspoken, unexpected immersion, demonstrating a renewed reading of the world. (BT)

Lara, Renata Marcelle

2000-01-01

148

The physiological basis of tactile sensibility in the beak of geese  

Microsoft Academic Search

The discharges in single afferent fibres of the ophthalmic nerve innervating the upper beak in two kinds of geese (Anser anser andAnser albifrons) were studied during manual and controlled mechanical stimulation. Three types of unit were recorded.1)Rapidly adapting units deriving from Grandry corpuscles had receptive fields of up to 12 mm in diameter which overlapped or enclosed each other in

K.-M. Gottschaldt

1974-01-01

149

Commentary: Sense and sensibility: the role of specialists in health care reform.  

PubMed

How to redesign the incentives structure in the United States to reward effective coordinated care rather than production volume is a staggering public health policy challenge. In the mind of the public, there is a fine distinction between health care rationing and rational health care. Specialists have a vital but underappreciated role in reining in health care costs, but specific incentives to elicit behavior change with positive social outcomes remain ambiguous. It is imperative, therefore, that redesigning the incentives structure is thoughtfully considered, modeled, and tested prior to implementation, lest an inferior-quality model is inadvertently adopted and costs are only marginally contained. Quality metrics need to be universal and reflect real patient outcomes instead of the degree of investment by the institution in the reporting tools. Still, specialists should take immediate action to implement safe and efficient procedures and to assess their long-term impact on patients' quality of life. Scientific evaluations should guide both the assessment of the appropriateness and the safe delivery of care. Investment in high-quality data architecture and the science of health delivery implementation is an imperative if health care reform is to achieve its goals. Coordination and collaboration between specialists and primary care physicians is essential to this enterprise. Specialists can champion these efforts as they pertain to their areas of expertise by considering their care episodes in the context of the patient as a whole, working closely with generalists, and returning to the mindset of the specialist as a family doctor. PMID:22373614

Schwann, Nanette M; Nester, Brian A; McLoughlin, Thomas M

2012-03-01

150

Measurements of sensible and latent heat flux in the western equatorial Pacific Ocean  

NASA Astrophysics Data System (ADS)

Micrometeorological measurements, including direct eddy-correlation measurements of heat and moisture fluxes, have been made from shipboard under light-wind conditions in the western equatorial Pacific warm pool. Air-sea temperature differences were typically 1.5°-2°C, that is, 1°-1.5°C larger than long-term averages from merchant ship data. A sea surface “cool skin” of about 0.3°C was observed. Bulk transfer coefficients for both fluxes agree well with the predictions of Liu et al. (1979) in the convective wind speed regime below 4 m s-1. Between 4 and 6 m s-1 values of the neutral exchange coefficients were CEN - 0.89 × 10-3 CHN = 1.03 × 10-3 CDN = 1.16 × 10-3. At zero mean wind speed, latent heat flux is maintained at about 25 W m-2 by convective exchange. Inertial dissipation estimates of the latent heat flux are about 20% lower than the directly measured eddy-correlation values below 4 m s-1.

Bradley, E. F.; Coppin, P. A.; Godfrey, J. S.

151

Integrating Technology on Campus: Human Sensibilities and Technical Possibilities. New Direction for Community Colleges, Number 101.  

ERIC Educational Resources Information Center

The 11 essays in this volume discuss integrating technology into the community college campus, review implementation strategies, and describe the possibilities of institutional transformation. The following articles are provided: (1) "Technology as a Catalyst for Reinventing an Institution" (Kathryn J. Neff); (2) "Navigating the Organizational…

Anandam, Kamala, Ed.

1998-01-01

152

A sensible technique to detect mollicutes impurities in human cells cultured in GMP condition.  

PubMed

In therapeutic trials the use of manipulated cell cultures for clinical applications is often required. Mollicutes microorganism contamination of tissue cultures is a major problem because it can determine various and severe alterations in cellular function. Thus methods able to detect and trace cell cultures with Mollicutes contamination are needed in the monitoring of cells grown under good manufacturing practice conditions, and cell lines in continuous culture must be tested at regular intervals. We here describe a multiplex quantitative polymerase chain reaction assay able to detect contaminant Mollicutes species in a single-tube reaction through analysis of 16S-23S rRNA intergenic spacer regions and Tuf and P1 cytoadhesin genes. The method shows a sensitivity, specificity, and robustness comparable with the culture and the indicator cell culture as required by the European Pharmacopoeia guidelines and was validated following International Conference on Harmonization guidelines and Food and Drug Administration requirements. PMID:24740225

Ugolotti, Elisabetta; Vanni, Irene

2014-01-01

153

Doing resilience with "half a brain:" navigating moral sensibilities 35 years after hemispherectomy.  

PubMed

This paper investigates experiences of resilience in the context of individuals suffering from disability as a result of severe intractable seizure disorder and consequent hemispherectomy, a surgical procedure in which part or all of either the left or right cerebral hemisphere is removed. Two adults who underwent childhood hemispherectomies-one left and one right-are the focus of this study. Previous research has extensively detailed the clinical outcomes of this neurological procedure, yet the actual day-to-day experiences of individuals living post-hemispherectomy remains unexplored. Utilizing open-ended, qualitative, and narrative techniques from a phenomenology of performativity perspective, the authors question how each individual's experiences of daily living are invariably acts of resilience, involving several different strategies that are somewhat unique to each. Rather than working as an adjective or noun signifying certain environmental or individual attributes, this paper proposes that "resilience" is best conceptualized as the individualized intentional actions which disabled, distraught, or at risk individuals perform in contextually relevant and idiosyncratic ways as they navigate health and well-being within their local social and moral worlds. PMID:23192493

Hatala, Andrew R; Waldram, James B; Crossley, Margaret

2013-03-01

154

Scanning electron microscopy of antennal sensible of Anoplistes halodendri halodendri and Anoplistes halodendri ephippium (Coleoptera: Cerambycidae).  

PubMed

Anoplistes halodendri halodendri (Pallas, 1776) and Anoplistes halodendri ephippium (Stevens and Dalman, 1817) are two subspecies of the longicorn beetle A. halodendri (Coleoptera, Cerambycidae). In the recent years, these subspecies have been spreading rapidly in Hippophae rhamnoides and Hedysarum scoparium shrubberies in the Chinese provinces of Shanxi and Kingie, causing mass mortality of these shrubberies species and consequently leading to great damage to local ecological environment construction as well as high economic, ecological, and societal losses. To control their hazards effectively, here, we study and compare the types, densities, and distribution of antennal sensilla of A. h. halodendri and A. h. ephippium using scanning electron microscopy. Eight sensilla types were observed on the antennae of these two subspecies, including placoid sensilla (Ps), chaetica sensilla (ch) (types I-III), sensilla basiconica (b) (types I and II), sensilla gemmiformium (G), and auricillica sensilla (au). Ps predominated on the antennae of both A. h. halodendri and A. h. ephippium, followed by b and ch, and G and au. There were differences between the subspecies in the distribution and density of the different sensilla types, with ch I being found exclusively on the antennae of A. h. ephippium and b I and au on the antennae of A. h. halodendri only. With the exception of Ps, the densities of ch II, ch III, b II, and G on the antennae of A. h. halodendri were much higher than on the antennae of A. h. ephippium. These results provide sufficient evidence to clarify the receptive mechanisms used by these two subspecies of longicorn beetles and their responses to volatile semiochemicals released by their host plants as well as discuss their differences with respect to host and habitat selection. PMID:21898665

Liu, Xin-Hai; Luo, You-Qing; Cao, Chuan-Jian; Zong, Shi-Xiang

2012-03-01

155

Developing a Framework for Sensible Regulation: Lessons from OSHA's Proposed Ergonomics Rule  

Microsoft Academic Search

Injuries caused by workplace activities that involve repetitive motion, known as musculoskeletal disorders (MSDs), increasingly concern workers, employers, and regulators because of their frequency and high treatment costs. The Occupational Safety and Health Administration (OSHA) recently proposed a national rule designed to reduce the workplace risk of MSDs. OSHA estimates there were about 626,000 MSDs in 1997, representing about one-third

Robert W. Hahn; Petrea R. Moyle

2000-01-01

156

Increased skin blood flow and enhanced sensible heat loss in humans after nicotinic acid ingestion  

Microsoft Academic Search

1.1. A series of studies was conducted to characterize thermal and cardiovascular responses to nicotinic acid (NA) ingestion (5 mg·kg?1) in healthy subjects: (a) at rest, seated (Ta = 30°C, RH = 23%) at 0800 h and again between 1800 and 2100 h; (b) at rest and during seated exercise (Ta = 29°C, RH = 30%); and (c) during upright

Lou A. Stephenson; Margaret A. Kolka

1995-01-01

157

A field study of the effects of inhomogeneities of surface sensible and latent heat fluxes  

SciTech Connect

In recent years, the problem of characterizing turbulent fluxes of heat, momentum, and moisture over inhomogeneous surfaces has received increasing attention. This issue is relevant to the performance of general circulation models (GCMs), in which a single grid element can encompass a variety of surface and topographical features. Although considerable progress has been made in describing the energy balance at a surface partially covered by vegetation, less is known about how to treat adjacent regions of sharply contrasting surface characteristics. One difficulty is the scarcity of suitable data sets with which to study the problem, particularly on scales of tens to hundreds of kilometers.

Doran, J.C. [Pacific Northwest Lab., Richland, WA (United States); Barnes, F.J. [Los Alamos National Lab., NM (United States); Coulter, R.L. [Argonne National Lab., IL (United States); Crawford, T.L. [Oak Ridge Gaseous Diffusion Plant, TN (United States)

1992-01-01

158

Voice over Internet protocol for the orthodontic practice: a sensible switch from plain old telephone service.  

PubMed

Voice over Internet protocol (VoIP) is a revolutionary new technology that is causing a stir in the telecommunications industry and threatening the existence of traditional telephone service providers. Based on a simple method of converting analog audio signals into digital data before being transmitted over the Internet, VoIP has gained immense popularity among consumers. The technology is now regarded as an alternative to traditional telephone service for the orthodontic office. When the economics are considered, it is cost-effective, especially for a busy orthodontic practice where the call volumes both in and out are always high. VoIP has the potential to reduce costs, break the barriers between local vs long-distance calling, and make life easier for the office staff. However, deploying VoIP requires a cautious and thought-out process. Users should fully understand the risks and benefits before switching from the public switched telephone network. VoIP customers and service providers are vulnerable to many of the same impersonation-based attacks by those who attempt toll fraud, and identity and information theft. In this article, VoIP is introduced to orthodontic practitioners, who might be unfamiliar with this technology. Internet protocol based private branch exchange systems that are currently marketed as open-source technologies are also reviewed. Additionally, VoIP is compared with the traditional public switched telephone network technology and evaluated for its potential applications in an orthodontic office for both increased efficiency and cost savings. PMID:18331949

Mupparapu, Muralidhar

2008-03-01

159

Problem Solving: A Sensible Approach to Children's Science and Social Studies Learning--and beyond  

ERIC Educational Resources Information Center

West outlines the scientific method as a proven problem-solving method for young children across the curriculum and in all areas of life and learning. She emphasizes that doing, thinking, and talking with peers when problem solving are as important as writing conclusions. The article walks readers through a second grade class's experiment in…

West, Martha

2007-01-01

160

"Fluorescent glycogen" formation with sensibility for in vivo and in vitro detection.  

PubMed

There are presently many methods of detecting complex carbohydrates, and particularly glycogen. However most of them require radioisotopes or destruction of the tissue and hydrolysis of glycogen to glucose. Here we present a new method based on the incorporation of 2-NBDG (2-{N-[7-nitrobenz-2-oxa-1, 3-diazol 4-yl] amino}-2-deoxyglucose), a D-glucose fluorescent derivative, into glycogen. Two kinds of approaches were carried out by using Clone 9 rat hepatocytes as a cellular model; (1) Incubation of cell lysates with 2-NBDG, carbohydrate precipitation in filters and measurement of fluorescence in a microplate reader (2) Incubation of living hepatocytes with 2-NBDG and recording of fluorescence images by confocal microscopy. 2-NBDG labeled glycogen in both approaches. We confirmed this fact by comparison to the labeling obtained with a specific monoclonal anti-glycogen antibody. Also drugs that trigger glycogen synthesis or degradation induced an increase or decrease of fluorescence, respectively. This is a simple but efficient method of detecting glycogen with 2-NBDG. It could be used to record changes in glycogen stores in living cells and cell-free systems and opens the prospect of understanding the role of this important energy reserve under various physiological and pathophysiological conditions. PMID:17973187

Louzao, M Carmen; Espiña, Begoña; Vieytes, Mercedes R; Vega, Felix V; Rubiolo, Juan A; Baba, Otto; Terashima, Tatsuo; Botana, Luis M

2008-08-01

161

Sense or Sensibility?: How Commitment Mediates the Role of Self-Service Technology on Loyalty  

NASA Astrophysics Data System (ADS)

It has been well documented that employing self-service technology (SST) results in considerable cost savings but few studies have examined its impact on consumers’ behavior. We apply a well-recognized model from the field of services marketing in an SST context. We examine how the established relationships between satisfaction, affective and calculative commitments, and loyalty are affected when the service is provided through a technology interface as opposed to service personnel. We then present two alternative perspectives on the role of SST. The first is based on the predominant assumption that SST is a moderator of the relationship between customer loyalty and its drivers, while the other rests on the assumption that SST is just another context and that its role in affecting customer loyalty is mediated by drivers of loyalty. A cross-sectional study conducted in the banking industry shows that SST does not change everything. The classical model of how customers evaluate services and the predictors of loyalty are replicated in the SST setting. Interestingly, SST does not have a direct influence on loyalty by itself but its effects are mediated by commitment. However, it is the affective commitment that is more important in forming loyalty toward the service provider.

Singh, Sangeeta; Olsen, Line Lervik

162

The role of coherent flow structures in the sensible heat fluxes of an Alaskan boreal forest  

NASA Astrophysics Data System (ADS)

Accelerations in the flow over forests generate coherent structures which locally enhance updrafts and downdrafts, forcing rapid exchanges of energy and matter. Here, observations of the turbulent flow are made in a highly heterogeneous black spruce boreal forest in Fairbanks, Alaska at ~2.6 h (12 m) and ~0.6 h (3 m), where h is the mean canopy height of 4.7 m. Wavelet analysis is used to detect coherent structures. The sonic temperature and wind data cover 864 half-hour periods spanning winter, spring, and summer. When mean global statistics of structures are analyzed at the two levels independently, results are similar to other studies. Specifically, an average of eight structures occurs per period, their mean duration is 85 s, and their mean heat flux contribution is 48%. However, this analysis suggests that 31% of the structures detected at 2.6 h, and 13% at 0.6 h, may be influenced by wave-like flow organization. Remarkably, less than 25% of the structures detected occur synchronously in the subcanopy and above canopy levels, which speaks robustly to the lack of flow interaction within only nine vertical meters of the forest.

Starkenburg, Derek; Fochesatto, Gilberto J.; Prakash, Anupma; Cristóbal, Jordi; Gens, Rudiger; Kane, Douglas L.

2013-08-01

163

Sensibility analysis of the Western Mediterranean Transition inferred by four companion simulations  

NASA Astrophysics Data System (ADS)

The Western Mediterranean Transition (WMT) is a strong event occurring during the winter 2004-2005 in the Western Mediterranean resulting in the formation of a large amount of Western Mediterranean Deep Water (WMDW). The newly formed WMDW then invaded the whole Western Mediterranean in a relatively short period of time. Our modeling study compares four companion eddy-resolving simulations obtained by running the NEMO code in regional Mediterranean configurations differing only by the horizontal or the vertical resolution grid. The first configuration MED12v50, considered as our reference, is well described in Beuvier et al. (2012) and refers to a 1/12° ORCA grid with 50 vertical levels. The second configuration MED12v75 refers to a 1/12° ORCA grid with 75 vertical levels. The third and the fourth configurations refer to a 1/36° ORCA grid with 50 and 75 vertical levels, MED36v50 and MED36v75 respectively. All the simulations used MEDATLAS climatology in October 1998 as an initial condition and were forced from 1998 to now by the ARPERA atmospheric fields, at about 50km resolution. The first study of the reference simulation MED12v50 has shown the role of deep mesoscale cyclones in transporting a large amount of new WMDW in the southwestern Mediterranean, in agreement with altimetry data. The companion simulations are compared to highlight the improvments obtained by increasing the resolution compared to the reference simulation. The comparison focuses on the 2004-2006 period and quantifies the differences in terms of horizontal patterns and rate of the WMDW formation, mesoscale eddy characteristics and drift, and bottom circulation towards the Channel of Sardinia and the Strait of Gibraltar. For example, the increase in the horizontal resolution consequences : - an increase of the horizontal extent of the convection maximum in March 2005, - an increase of the rate of formation for density ranged between 29.10 and 29.11 kg.m-3 in better agreement with the estimate of Schroeder et al. (2008), - a decrease in the diameter of cyclones by 20km (80 km against 100km in the reference run) - an increase of the deep cyclone southern drift velocity with higher bottom speed, in better agreement with the satellite data.

Arsouze, Thomas; Beuvier, Jonathan; Béranger, Karine; Somot, Samuel; Lebeaupin-Brossier, Cindy; Bourdallé-Badie, Romain; Sevault, Florence; Drillet, Yann

2013-04-01

164

Influence of catechol-O-methyltransferase (COMT) gene polymorphisms in pain sensibility of Brazilian fibromialgia patients  

Microsoft Academic Search

Fibromyalgia syndrome (FS) is a rheumatic syndrome affecting to 2–3% of individuals of productive age, mainly women. Neuroendocrine\\u000a and genetic factors may play a significant role in development of the disease which is characterized by diffuse chronic pain\\u000a and presence of tender points. Several studies have suggested an association between FS, especially pain sensitivity, and polymorphism of the catechol-O-methyltransferase\\u000a (COMT)

Flávia Regina Barbosa; Josie Budag Matsuda; Mendelson Mazucato; Suzelei de Castro França; Sônia Marli Zingaretti; Lucienir Maria da Silva; Nilce Maria Martinez-Rossi; Milton Faria Júnior; Mozart Marins; Ana Lúcia Fachin

165

Regulating transgenic crops sensibly: lessons from plant breeding, biotechnology and genomics  

Microsoft Academic Search

The costs of meeting regulatory requirements and market restrictions guided by regulatory criteria are substantial impediments to the commercialization of transgenic crops. Although a cautious approach may have been prudent initially, we argue that some regulatory requirements can now be modified to reduce costs and uncertainty without compromising safety. Long-accepted plant breeding methods for incorporating new diversity into crop varieties,

Kent J Bradford; Allen Van Deynze; Neal Gutterson; Wayne Parrott; Steven H Strauss

2005-01-01

166

TPM-Performance Sensible Key Management Protocols for Service Provisioning in Cloud Computing  

Microsoft Academic Search

\\u000a A Trusted Platform Module (TPM) is a small and hence low-performance hardware chip whose main function - at least for the\\u000a service provisioning topic of this paper - is to play a trusted third party’s role inside a service provisioning computing\\u000a platform so that the platform will have what we call a behaviour conformity property. The property of behaviour conformity

Haibo Chen; Jun Li; Wenbo Mao

167

Using Research to Make Sensible Literacy Decisions within Current Educational Initiatives  

ERIC Educational Resources Information Center

This article argues that literacy educators must take time to advocate for research-informed instructional responses in this age of Common Core State Standards and Race to the Top mandates. To that end, it offers four key ideas regarding: (a) what we know about instruction, (b) the need for long-term, continuously revised planning, (c) literacy in…

Goatley, Virginia J.; Hinchman, Kathleen A.

2013-01-01

168

Sensory nerve conduction velocity and vibratory sensibility in juvenile diabetics. Relationship to endogenous insulin.  

PubMed

Sensory nerve conduction velocity (NCV) and the vibratory sense (biothesiometry) were determined in 67 children and adolescents with insulin dependent diabetes. Age at onset of diabetes varied between 1-14 years (mean +/- S.D. 6.5 +/- 3.6) and the duration of diabetes between 4-17 years (7.7 +/- 3.4). Within +/- 3 months of the nerve function tests blood was drawn for determination of C-peptide and insulin antibodies (IgG and IRI). A low NCV (less than 50 m/s) in the sural nerve and/or an abnormal vibratory sense (greater than or equal to 1.0 microns) were found in 34 patients (50.7%). Measurable fasting serum C-peptide 0.04-0.60 pmol/ml (0.17 +/- 0.15) was found in 16 patients (23.9%). All but one patients had insulin antibodies with IgG 0.130-11.029 mU/ml (2.957 +/- 2.509) and total IRI 10-9120 muU/ml (1204 +/- 1723). In multiple regression analysis we did not find any correlation between nerve function and sex, age, or age at onset of diabetes, and there was only a weak relationship between NCV and duration. However, there was a positive correlation between NCV and C-peptide (p less than 0.001). Vibration sense was also better among patients with C-peptide (p less than 0.05). The results support the view that insulin deficiency contributes to peripheral diabetic neuropathy. PMID:525341

Ludvigsson, J; Johannesson, G; Heding, L; Häger, A; Larsson, Y

1979-09-01

169

Sensible Treatment of Obesity in Rural Youth (STORY): Design and Methods  

PubMed Central

Project STORY is a 3-arm, randomized, planning and feasibility study assessing the effectiveness of two behavioral weight management interventions in an important and at-risk population, overweight children and their parents in medically underserved rural counties. Participants will include 90 parent-child dyads from rural counties in north central Florida. Families will be randomized to one of three conditions: (a) a Family-Based Behavioral Group Intervention, (b) a Parent-Only Behavioral Group Intervention, and (c) a waitlist control condition. Child and parent participants will be assessed at baseline (month 0), post-treatment (month 4) and follow-up (month 10). Assessment and intervention sessions will be held at Cooperative Extension offices within each local participating county. The primary outcome measure is change in child body mass index (BMI) z-score. Additional key outcome measures include child dietary intake, physical activity, self-esteem, body image, and parent BMI. The goals of the study are to (a) assess the feasibility of recruitment in rural settings, (b) develop and evaluate training protocol for group leaders, (c) determine strategies to increase adherence to monitoring and goal setting protocol, (d) evaluate strategies for participant retention, (e) assess the relative cost-effectiveness of the interventions, (f) assess the acceptability of the intervention to families and Cooperative Extension administrators and personnel, and (g) if successful, estimate the sample size needed for a full scale trial. This research has potential implications for medically underserved rural communities with limited resources and preventive health care services. If successful, a Parent-Only intervention program may provide a cost-effective and practical intervention for families in underserved rural communities.

Janicke, David M.; Sallinen, Bethany J.; Perri, Michael G.; Lutes, Lesley D.; Silverstein, Janet H.; Huerta, Milagros G.; Guion, Lisa A.

2008-01-01

170

Sense and sensibility in the context of radiofrequency electromagnetic field exposure  

Microsoft Academic Search

The association between radiofrequency exposure (RF-EMF) and non-specific health complaints in electromagnetic hypersensitive (EHS) individuals was investigated in a prospective cohort study conducted between 2008 and 2009 in Switzerland. Exposure to environmental far-field RF-EMF sources was modelled and cordless and mobile phone use was also considered in the analyses. About 8% (n=130) of the study population declared to be EHS.

Martin Röösli; Evelyn Mohler; Patrizia Frei

2010-01-01

171

Measuring Sensible Heat Flux Density over Pasture Using the ct2Profile Method  

Microsoft Academic Search

Two large-aperture infrared scintillometers were positioned at heights (z) of 10 and 1.5 m with beams propagated horizontally over pasture for distances of 3.1 km and 141 m, respectively. From each scintillometer a half-hourly average value of the path-averaged, temperature-structure parameter (CT2) was obtained in unstable atmospheric conditions. The result suggested CT2 to scale with height as z-2\\/3. Using the

J. P. Nieveen; A. E. Green

1999-01-01

172

EVALUACIÓN MICROBIOLÓGICA Y DETECCIÓN DE ENTEROTOXINAS ESTAFILOCOCCICAS EN ENSALADAS DE MOLUSCOS Y VEGETALES Microbiological Evaluation and Staphylococcus aureus Enterotoxin Detection in Shellfish and Vegetable Salads  

Microsoft Academic Search

Mollusks represent an important fishing product in Venezuela's easthern region. Inadequate hygienic conditions applied in its preparation and sale at the beaches indicate the importance of a strict sanitary control. The objective of this research was to evaluate the microbiological quality and detect enterotoxins of Staphylococcus aureus in mollusks and vegetable salads sold at Margarita Island beaches during 2004-2005. Sixty

María M. Torres

173

ANALYSE CRITIQUE DES PROTOCOLES PHARMACOLOGIQUES UTILISES POUR LA RECHERCHE D'EXTRAITS ET DE SUBSTANCES PURES D'ORIGINE VEGETALE A PROPRIETES ANTIBACTERIENNE OU ANTIPARASITAIRE  

Microsoft Academic Search

The methods applied for the evaluation of antibacterial and antiparasitary activities rely in the first stage on in vitro tests. But some difficulties arise and some extracts active in vitro have no or quite no in vivo activity whereas some plants generally used for microbial or parasitary affections do not present any in vitro activity. The methodological approach has to

174

Moving objects with clumsy fingers: how predictive is grip force control in patients with impaired manual sensibility?  

Microsoft Academic Search

Objective: Anticipatory grip force adjustments to movement-induced load fluctuations of a hand-held object suggest that motion planning is based on an internal forward model of both the external object properties and the dynamics of the own motor apparatus. However, the central nervous system also refers to real time sensory feedback from the grasping digits in order to achieve a highly

Dennis A Nowak; Joachim Hermsdörfer; Christian Marquardt; Helge Topka

2003-01-01

175

You see me, but do you hear me? The science and sensibility of trans-species dialogue  

Microsoft Academic Search

Talking with animals comes naturally and happens the world over. Traditional indigenous peoples depend on their abilities to understand the birds, grazers, and hunters who share their land and waters and we converse intimately with the dogs, cats, birds, and other animals with whom we live. Nonetheless, science and society cast a skeptical eye on claims that animals think and

GA Bradshaw

2010-01-01

176

Subjective face recognition difficulties, aberrant sensibility, sleeping disturbances and aberrant eating habits in families with Asperger syndrome  

Microsoft Academic Search

BACKGROUND: The present study was undertaken in order to determine whether a set of clinical features, which are not included in the DSM-IV or ICD-10 for Asperger Syndrome (AS), are associated with AS in particular or whether they are merely a familial trait that is not related to the diagnosis. METHODS: Ten large families, a total of 138 persons, of

Taina Nieminen-von Wendt; Juulia E Paavonen; Tero Ylisaukko-Oja; Susan Sarenius; Tiia Källman; Irma Järvelä; Lennart von Wendt

2005-01-01

177

Seasonal hypoxia in eutrophic stratified coastal shelves: mechanisms, sensibilities and interannual variability from the North-Western Black Sea case  

NASA Astrophysics Data System (ADS)

The Black Sea north-western shelf (NWS) is a~shallow eutrophic area in which seasonal stratification of the water column isolates bottom waters from the atmosphere and prevents ventilation to compensate for the large consumption of oxygen, due to respiration in the bottom waters and in the sediments. A 3-D coupled physical biogeochemical model is used to investigate the dynamics of bottom hypoxia in the Black Sea NWS at different temporal scales from seasonal to interannual (1981-2009) and to differentiate the driving factors (climatic versus eutrophication) of hypoxic conditions in bottom waters. Model skills are evaluated by comparison with 14 500 in-situ oxygen measurements available in the NOAA World Ocean Database and the Black Sea Commission data. The choice of skill metrics and data subselections orientate the validation procedure towards specific aspects of the oxygen dynamics, and prove the model's ability to resolve the seasonal cycle and interannual variability of oxygen concentration as well as the spatial location of the oxygen depleted waters and the specific threshold of hypoxia. During the period 1981-2009, each year exhibits seasonal bottom hypoxia at the end of summer. This phenomenon essentially covers the northern part of the NWS, receiving large inputs of nutrients from the Danube, Dniestr and Dniepr rivers, and extends, during the years of severe hypoxia, towards the Romanian Bay of Constanta. In order to explain the interannual variability of bottom hypoxia and to disentangle its drivers, a statistical model (multiple linear regression) is proposed using the long time series of model results as input variables. This statistical model gives a general relationship that links the intensity of hypoxia to eutrophication and climate related variables. The use of four predictors allows to reproduce 78% of hypoxia interannual variability: the annual nitrate discharge (N), the sea surface temperature in the month preceding stratification (T), the amount of semi-labile organic matter in the sediments (C) and the duration of the stratification (D). Eutrophication (N, C) and climate (T, D) predictors explain a similar amount of variability (~35%) when considered separately. A typical timescale of 9.3 yr is found to describe the inertia of sediments in the recovering process after eutrophication. From this analysis, we find that under standard conditions (i.e. average atmospheric conditions, sediments in equilibrium with river discharges), the intensity of hypoxia can be linked to the level of nitrate discharge through a non-linear equation (power law). Bottom hypoxia does not affect the whole Black Sea NWS but rather exhibits an important spatial variability. This heterogeneous distribution, in addition to the seasonal fluctuations, complicates the monitoring of bottom hypoxia leading to contradictory conclusions when the interpretation is done from different sets of data. We find that it was the case after 1995 when the recovery process was overestimated due to the use of observations concentrated in areas and months not typically affected by hypoxia. This stresses the urging need of a dedicated monitoring effort in the NWS of the Black Sea focused on the areas and the period of the year concerned by recurrent hypoxic events.

Capet, A.; Beckers, J.-M.; Grégoire, M.

2012-12-01

178

Gut Microbioma Population: An Indicator Really Sensible to Any Change in Age, Diet, Metabolic Syndrome, and Life-Style  

PubMed Central

Obesity has become a pandemic threat in the latest 30 years. The trend of the prevalence of overweight and obesity has got an overall increase in every part of the world, regardless of ethnicity, life-style and social ties. High food intake, genetic, and sedentary have been related to obesity; it has been also hypothesized that gut microbiota could have an impact on the complex mechanism underlying the weight gain. This review aims to illustrate the actual literature about gut microbiota and its relation with obesity and to analyze the possible implications of factors such as diet and life-style onto the composition of gut microbiota, that can lead to overweight/obesity condition.

Annalisa, Noce; Alessio, Tarantino; Claudette, Tsague Djoutsop; Erald, Vasili; Antonino, De Lorenzo; Nicola, Di Daniele

2014-01-01

179

Synthesis of soluble rare-earth metal bisphthalocyanines and their Langmuir–Blodgett films for gas sensibility  

Microsoft Academic Search

In the present work, the synthesis of octa-4-(2,4-di-tert-pentylphenoxyl)-substituted rare-earth bisphthalocyanine with Sm, Er and Nd as central metal atom, respectively, is described. These compounds have improved solubility in organic solvents, and can form homogenous and relatively stable films at the air\\/water interface. The Langmuir film can be transferred by vertical dipping onto substrates with Z-type configuration. In Langmuir–Blodgett (LB) films,

Bingjie Liang; Chunwei Yuan; Yu Wei; Yin Zhang; Dapeng Jiang; Shaogong Zhang; Ande Lu

1997-01-01

180

The Cattle Motif in Sol T. Plaatje’s Publications in EnglishRe-Storying the African and Batswana Sensibilities  

Microsoft Academic Search

Afrocentricity is the paradigm that underpins this study, which adapts the analytical construct “motif” from Welsh-Asante’s Nzrui aesthetic model. “Motif” highlights “cattle,” an image drawn from Batswana culture. Traditionally, the life of the Batswana is centered on cattle. Right up to the present, cattle feed the creative imagination in proverbs. This study traces the cattle motif in Sol. T. Plaatje’s

Karen Haire; D. S. Matjila

2010-01-01

181

Realities of weather extremes on daily life in urban India - How quantified impacts infer sensible adaptation options  

NASA Astrophysics Data System (ADS)

Emerging and developing economies are currently undergoing one of the profoundest socio-spatial transitions in their history, with strong urbanization and weather extremes bringing about changes in the economy, forms of living and living conditions, but also increasing risks and altered social divides. The impacts of heat waves and strong rain events are therefore differently perceived among urban residents. Addressing the social differences of climate change impacts1 and expanding targeted adaptation options have emerged as urgent policy priorities, particularly for developing and emerging economies2. This paper discusses the perceived impacts of weather-related extreme events on different social groups in New Delhi and Hyderabad, India. Using network statistics and scenario analysis on Fuzzy Cognitive Maps (FCMs) as part of a vulnerability analysis, the investigation provides quantitative and qualitative measures to compare impacts and adaptation strategies for different social groups. Impacts of rain events are stronger than those of heat in both cities and affect the lower income classes particularly. Interestingly, the scenario analysis (comparing altered networks in which the alteration represents a possible adaptation measure) shows that investments in the water infrastructure would be most meaningful and more effective than investments in, e.g., the traffic infrastructure, despite the stronger burden from traffic disruptions and the resulting concentration of planning and policy on traffic ease and investments. The method of Fuzzy Cognitive Mapping offers a link between perception and modeling, and the possibility to aggregate and analyze the views of a large number of stakeholders. Our research has shown that planners and politicians often know about many of the problems, but are often overwhelmed by the problems in their respective cities and look for a prioritization of adaptation options. FCM provides this need and identifies priority adaptation options when resources are scarce. 1 Parry ML, Canziani OF, Palutikof JP, van der Linden PJ, Hanson CE (eds) (2007) Contribution of Working Group II to the Fourth Assessment Report of the Intergovernmental Panel on Climate Change. Cambridge University Press, Cambridge New York. 2 TERI (2007) Adaptation to Climate Change in the context of Sustainable Development. Background Paper to the conference ''Climate Change and Sustainable Development: An international workshop to strengthen research and understanding'', 7-8 April 2006, The Energy and Resources Institute, New Delhi.

Reckien, D.

2012-12-01

182

Diverse, Unforeseen, and Quaint Difficulties: The Sensible Responses of Novices Learning to Follow Instructions in Academic Writing  

ERIC Educational Resources Information Center

While academic discourse communities have been extensively studied as social contexts of forms/functions, and teachers, lessons, and students have been researched from every imaginable angle, the prevailing view of academic writing conventions is still quite normative. The conventions of the academy are often regarded as a stable collection of…

Macbeth, Karen P.

2006-01-01

183

General Relativity Without Paradigm of Space-Time Covariance:. Sensible Quantum Gravity and Resolution of the "problem of Time"  

NASA Astrophysics Data System (ADS)

Covariance of space and time in General Relativity (GR) entails a number of technical and conceptual difficulties. Remarkably, these can be resolved by a paradigm shift from full 4-dimensional general coordinate invariance to invariance only with respect to spatial diffeomorphisms. The framework for a theory of gravity with this paradigm shift, from quantum to classical regimes, is presented; GR is contained as a special case. Appositely formulated as a master constraint, the Hamiltonian constraint now determines only dynamics; and is relieved of its dual role of generating symmetry transformations. The Dirac algebra, in which 4-dimensional diffeomorphism symmetry is only realized on-shell, is replaced by the master constraint algebra which possesses only spatial diffeomorphism gauge symmetry, both on- and off-shell. Decomposition of the spatial metric into unimodular and determinant, q, factors results in mutually commuting pairs of canonical variables. The classical content of GR can be captured with a Hamiltonian constraint linear in the trace of the momentum. This implies a theory of quantum gravity can be described by a Schrodinger equation first order in intrinsic time ln q accompanied with positive semi-definite probability density. The semi-classical Hamilton-Jacobi equation is also first order in intrinsic time, with the implication of being complete; and gauge-invariant physical observables can be constructed from integration constants of its complete integral solution. Classical space-time, with direct correlation of its proper times and intrinsic time intervals, emerges from constructive interference; and the physical content of GR can be regained from a theory with a true Hamiltonian generating intrinsic time translations, but with only spatial diffeomorphism symmetry. The framework also prompts natural extensions towards a well-behaved quantum theory of gravity.

Soo, Chopin; Yu, Hoi-Lai

2013-12-01

184

The sensibility of aesthetic landscape concepts in the case of British West Indies travel narratives, 1815–1914  

Microsoft Academic Search

In the tradition of landscape traced back to the emergence of landscape painting, the techniques of art provided the basis for selecting a vantage point or prospect, from which to view the landscape, and for framing the scene. Meanwhile, the development of aesthetic concepts such as the sublime, beautiful, picturesque, and romantic provided the means of evaluating landscape scenery. These

Velvet Nelson

2009-01-01

185

Sense and Sensibility in Technical Documentation: How Feminist Interpretation Strategies Can Save Lives in the Nation's Mines.  

ERIC Educational Resources Information Center

This article analyzes post-accident investigation reports from a feminist perspective, showing how a feminist interpretation can change the way technical writers look at expertise and evidence. In comparing formal documentation of mine inspection reports with women's testimony about conditions in the mines, the article shows: (1) how the…

Sauer, Beverly A.

186

Sensibility of GPS measurements and estimates during extreme meteorological events: the case study of mesoscale convective systems in West Africa  

NASA Astrophysics Data System (ADS)

Six permanent GPS stations have been deployed in West Africa within the framework of the African Monsoon Multidisciplinary Analysis (AMMA) project in order to monitor precipitable water vapor (PWV). This quantity is indeed widely employed to compute water budgets and study atmospheric processes. But in Sahel, 90% of annual rainfalls are produced by Mesoscale Convective Systems (MCSs) and PWV estimates tend to be less accurate during these extreme meteorological conditions: temperatures fall, GPS PWV estimates reach a local maximum and GPS phase residuals show strong variations that are spatially and temporally correlated. We observed that GPS phase residuals, which give insight into anomalies of the air refractivity, clearly reveal the passage of MCSs similarly as reflectivity measurements from C-band Doppler radar. The aim of this study is to evaluate the quality of the GPS PWV estimates during these events and possibly improve their estimation process. We carried out methodological and sensitivity tests on the parameterization of atmospheric delays and especially on the Gauss-Markov process which constrains the temporal variability of the GPS PWV estimates. During MCSs events, differences between GPS PWV estimates from GAMIT (2 cm.h-1/2 random walk for zenith tropospheric delays) and GIPSY (5 mm.h-1/2 random walk for zenith tropospheric delays) standard processing can for instance reach +/- 3.8 kg.m-2 . Standard GPS PWV estimates are thus subject to caution during these intense events. We therefore investigate an improved PWV estimation process which considers both zenith tropospheric delays and GPS phase residuals in order to account for the asymmetry of the air refractivity. This method leads to high-frequency PWV estimates for each GPS satellite which we compare with PWV estimates from a collocated microwave radiometer.

Nahmani, S.; Bock, O.

2013-12-01

187

PS2-43: Sensible Use of ICD-9 Diagnosis of Observational Data in Breast and Endometrial Cancer Research  

PubMed Central

Background/Aims Utilization of administrative data (such as EHR data) in population-based research is resource advantageous, despite its potential limitations. Few studies have fully assessed the validity and efficiency of EHR-retrieved data. We developed ICD-9 based algorithms and operational processes to evaluate applicability of EHR-derived cancer data. Methods We retrieved data between 01/01/2002–12/30/2011 from 4 different EHR sources and developed 3 ICD9-based diagnostic algorithms (1+, 2+ and 5+). Women were classified into breast or endometrial cancers or benign breast conditions (BBC). One trained abstractor manually reviewed medical records and recorded data into a structured database. Every 10 observations were selected and reviewed. Basic descriptive statistical analyses were conducted; observations with questionable values were flagged for re-evaluation. The final dataset was considered the “gold standard” and used to validate the algorithms and to assess the duration between the diagnostic and administrative dates. Results A total of 1,056 women contributed to this study. Of these, 189 were diagnosed with breast and 40 with endometrial cancers. An additional 268 women had BBC. For breast cancer, using the first algorithm we calculated a sensitivity of 95.2% and specificity of 96.4%. Application of the second algorithm yielded a sensitivity of 94.2% and specificity of 97.6%. For the third one, our calculations indicated 89.0% sensitivity and 97.9% specificity. Our analyses based on the same algorithms yielded similar sensitivity and specificity for endometrial cancer. For BBC, we calculated a sensitivity of 82.5% and specificity of 56.7% based on the first, 73.1% sensitivity and specificity of 71.9% for the second, and 38.8% sensitivity and specificity of 90.5% for the third algorithm. The average duration between diagnostic and administrative dates for incident breast, endometrial cancers and BBC was 0.65, 0.01, and 0.31 years, respectively. Conclusions Our initial findings confirm the validity and potential utility of EHR for population-based cancer research. The algorithm of “2+ ICD-9 Coding System” yielded the most efficient process. The observed lower sensitivity and specificity for BBC potentially can be attributed to the wider pathologic spectrum of BBC. The relatively short duration between the EHR and diagnostic dates suggests unbiased interchangeability of dates.

Feng, Wen; Yan, Xiaowei (Sherry); Colonie, Ryan; Prichard, Jeffrey; Gogoi, Radhika; Stark, Azadeh

2013-01-01

188

Characteristics of the motions, turbulence intensity, diffusivity, flux of momentum and sensible heat in the upper atmosphere  

NASA Technical Reports Server (NTRS)

Analyses of the meteorological rocket data obtained from an experiment conducted at 3-hour intervals at 8 western meridional rocket stations are presented. Large variations in the meridional wind contribute substantially to overall turbulence in the tropical stratosphere. The solar semidiurnal component of wind oscillations in the tropics was observed to be much higher than predicted by theory, often exceeding the magnitude of the diurnal amplitude throughout the stratosphere. The observed value of the solar diurnal amplitude in the stratosphere was in line with theoretical prediction. The solar terdiurnal amplitudes for temperature, meridional and zonal winds were non-negligible and must be considered in any harmonic analysis. Phase angle variation with height was rapid for all harmonics; however, there was general agreement between predicted and observed phase angles. Because of large changes in the mean winds in the mesosphere with season, harmonic determinations are difficult. There appear to be large zonal wind changes even within the same season as mentioned previously. Turbulence diffusivity in the upper stratosphere is greater near the equator than in the mid-latitudes.

Kao, S. K.; Lordi, N. J.

1977-01-01

189

Relación entre el potencial zeta y la deposición en el lavado de impurezas sólidas sobre tejidos de algodón, poliéster y poliéster-algodón tratados con diferentes aprestos  

Microsoft Academic Search

Deposition of solid impurities of textile substrates, in washing, is due to different causes which can be of mechanical, chemicai, electrical or adsorption origin.\\u000aThe electrical phenomenon is studied by the electrokinetic potential or zeta potential. This potential depends on the fibre surface and the polar medium in which in steeped. For this reason, we used cotton, polyester, and polyester-cotton

Francisco Javier Carrión Fité; José Ribé Pons

1970-01-01

190

Spatiotemporal variations in growing season exchanges of CO2, H2O,and sensible heat in agricultural fields of the Southern GreatPlains  

Microsoft Academic Search

Climate, vegetation cover, and management create fine-scaleheterogeneity in unirrigated agricultural regions, with important but notwell-quantified consequences for spatial and temporal variations insurface CO2, water, and heat fluxes. We measured eddy covariance fluxesin seven agricultural fields--comprising winter wheat, pasture, andsorghum--in the U.S. Southern Great Plains (SGP) during the 2001-2003growing seasons. Land-cover was the dominant source of variation insurface fluxes, with 50-100

Marc L. Fischer; David P. Billesbach; William J. Riley; Margaret S. Torn

2007-01-01

191

Development of Low Cost Dehumidification and Sensible Only Energy Exchanger Components for Desiccant Based Air Conditioning Systems. Phase 1, Final Report, December 1989-December 1990.  

National Technical Information Service (NTIS)

A novel, two-step manufacturing process, which involves the use of a thin aluminum substrate that is coated with a dense layer of a solid adsorbent, was determined to be the most effective method for producing a high performing, low cost desiccant dehumid...

J. C. Fischer

1991-01-01

192

Spectra of the Temperature and Humidity Fluctuations and of the Fluxes of Moisture and Sensible Heat in the Marine Boundary Layer  

Microsoft Academic Search

Temperature and humidity fluctuation data were collected on the R\\/V Flip during BOMEK (Barbados Oceanographic and Meteorological Experiment) in May 1969 and during a pre-BOMEX trial cruise near San Diego in February 1969. The program was a cooperative one with a number of groups on board. In a companion paper with the personnel from the University of British Columbia, the

G. T. Phelps; S. Pond

1971-01-01

193

Validating Patterns in Large Scale Sensible and Latent Heat Flux Estimates from a Remote Sensing-based Model and Aircraft-based Flux Measurements  

Microsoft Academic Search

A remote sensing field experiment conducted in the Southern Great Plains in 1997 (SGP97) in central Oklahoma, had aircraft-based flux observations as well as remotely sensed data collected over one of the main study sites in central Oklahoma. This agricultural region contains primarily grassland\\/pasture and winter wheat, which was recently harvested leaving a significant number of fields either as wheat

W. P. Kustas; M. C. Anderson

2005-01-01

194

Internet-Based Interactive Health Intervention for the Promotion of Sensible Drinking: Patterns of Use and Potential Impact on Members of the General Public  

PubMed Central

Background Heavy drinking is responsible for major health and social problems. Brief interventions have been shown to be effective, but there have been difficulties in reaching those who might benefit from them. Pilot studies have indicated that a Web-based intervention is likely to be acceptable to heavy drinkers and may produce some health benefits. However, there are few data on how many people might use such a program, the patterns of use, and potential benefits. Objectives The aim was to examine the demographic characteristics of users of a free, Web-based, 6-week intervention for heavy drinkers and to describe the methods by which users identified the site, the pattern of site use and attrition, the characteristics associated with completing the program, and the self-reported impact on alcohol-related outcomes. Methods Cohort study. Visitors to the Web site were offered screening with the Fast Alcohol Screening Test, and those scoring above the cutoff for risky drinking were invited to register with the program. Demographic information was collected routinely at registration, and questionnaires were completed at the end of weeks 1 and 6. The outcome measures assessed dependency (Short Alcohol Dependency Data Questionnaire), harms (modified Alcohol Problems Questionnaire), and mental health (Clinical Outcomes in Routine Evaluation–Outcome Measure). Results The records of 10000 users were analyzed. The mean age was 37.4 years, 51.1% were female, 37.5% were single, and 42.4% lived with children. The majority were White British, lived in the United Kingdom, and reported occupations from the higher socioeconomic strata. Over 70% connected to the Down Your Drink (Down Your Drink) site from another Internet-based resource, whereas only 5.8% heard about the site from a health or other professional. Much of the Web site use (40%) was outside normal working hours. Attrition from the program was high, with only 16.5% of registrants completing the whole 6 weeks. For those who completed the program, and the final outcome measures, measures of dependency, alcohol-related problems, and mental health symptoms were all reduced at week 6. Conclusions The Web-based intervention was highly used, and those who stayed with the program showed significant reductions in self-reported indicators of dependency, alcohol-related problems, and mental health symptoms; however, this association cannot be assumed to be causal. Programs of this type may have the potential to reach large numbers of heavy drinkers who might not otherwise seek help. There are significant methodological challenges and further research is needed to fully evaluate such interventions.

Murray, Elizabeth; Butler, Ceri; Wallace, Paul

2007-01-01

195

"Help Wanted, Inquire Within": Estimation. Activities and Thoughts That Emphasize Dealing Sensibly with Numbers through the Processes of Estimation. (Grades 1-6). Title I Elementary Mathematics Program.  

ERIC Educational Resources Information Center

Developed for elementary teachers, this activity unit is designed to teach students the importance of estimation in developing quantitative thinking. Nine ways in which estimation is useful to students are listed, and five general guidelines are offered to the teacher for planning estimation activities. Specific guidelines are provided for…

Gronert, Joie; Marshall, Sally

196

A Comparison between Back Propagation and the Maximum Sensibility Neural Network to Surface Roughness Prediction in Machining of Titanium (Ti 6Al 4V) Alloy  

Microsoft Academic Search

Titanium alloys are attractive materials due to their unique high strength, excellent performance at elevated temperatures\\u000a and exceptional resistance to corrosion. The aerospace and military industries are the main users of this material. Titanium\\u000a alloys are classified as materials difficult to machine. The correct parameters for machining are a hard to determine, and\\u000a today researches are looking to develop new

Indira Escamilla; Luis Torres; Pedro Perez; Patricia Zambrano

2008-01-01

197

Bait/Rebait: "The Students' Right to Their Own Language" Was a Sensible Statement When It Was Adopted. We Need to Renew Our Efforts to Implement It Today.  

ERIC Educational Resources Information Center

Three teachers debate the value of a statement on student language usage that was adopted by the Conference on College Composition and Communication and the National Council of Teachers of English. (RL)

McPherson, Elisabeth; And Others

1980-01-01

198

Propinquity, sociability and excitement: exploring the normalisation of sensible drug use among 15–16-year-olds in north-west England and north-east Wales  

Microsoft Academic Search

This paper explores normalised drug use as an aspect of young people's leisure careers. Qualitative data generated by 24 single-sex focus groups with 153 (85 males; 68 females) 15–16-year-olds attending seven schools in north-west England and north-east Wales revealed that young people's drug use tended to be both heterogeneous and situation specific. Indeed, rather than being actively sought out, 15–16-year-olds’

Andy Smith; Miranda Thurston; Ken Green

2011-01-01

199

Synthese et utilisation de fibres cellulosiques phosphatees pour la valorisation de la fibre vegetale dans l'amelioration des proprietes de surface du papier et la fabrication de materiaux ignifuges  

NASA Astrophysics Data System (ADS)

Dans cette etude, nous souhaitions principalement greffer des groupements phosphates directement sur la cellulose comme materiau modele, et par la suite transposer les conditions optimales du design concu pour la cellulose, determine par modelisation a l'aide de l'outil JMP, sur la pate kraft. Ensuite, evaluer les proprietes physico-chimiques, optiques, d'hydrophilie, thermiques et d'inflammabilite des materiaux fabriques (feuilles ou pastilles fabriquees) a partir des fibres phosphorylees. Pour ce faire, nous avons pretraite la cellulose et la pate kraft dans une solution aqueuse de 10 a 15 % de LiCl a 70°C pendant 7 heures. Par la suite, nous avons procede a la reaction de phosphorylation in situ avec l'acide phosphorique et l'uree, dans des conditions de temperatures et de reactifs decrites par un design experimental, pendant 3 heures. La reaction de phosphorylation s'est realisee avec succes pour l'ensemble des resultats sur la cellulose, avec des taux de greffage variables selon les conditions operatoires. Les degres de substitutions (DSP), determines par ICP-OES, et les degres de polymerisation (DP), determines par viscosimetrie, etaient aussi variables, selon les conditions. L'etude des parametres experimentaux a permis de determiner les conditions optimales transposables sur la pate kraft (DSP = 1,47 et DP = 142,42 pour la cellulose, qui represente un taux de coupure de 38% de la fibre) et les facteurs critiques de la reaction. Les resultats de la reaction sur la fibre ont permis, non seulement de constater que les conditions utilisees pour la cellulose n'etaient directement transposables a la fibre, mais permettaient quand d'obtenir un DSP interessant ? a 1 avec un taux de coupure de 50 a 60 %. La structure du produit principal de la reaction (le sel de calcium du pyrophosphate d'ester de cellulose ou de pate kraft) a ete determinee par les analyses FTIR, XPS, RMN-13C et RMN-31P. L'etude de l'effet de la reaction de phosphorylation sur les proprietes physico-chimiques et optiques (blancheur/opacite, rupture, cohesion interne etc.) des feuilles fabriquees a permis de demontrer une diminution generale des proprietes de ces dernieres. De meme, une resistance a la flamme du papier phosphoryle a ete observee dans la phase de decroissance de la combustion, lors des tests de flamme et des analyses par TGA. De plus, l'analyse de l'angle de contact a demontre que le greffage des groupements phosphates augmentait l'hydrophilie de la fibre et son absorption d'eau.

Lentsolo Yalli, Gym Clerc

200

FTIR spectroscopy combined with chemometrics for analysis of lard adulteration in some vegetable oils Espectroscopia FTIR combinada con quimiometría para el análisis de adulteración con grasa de cerdo de aceites vegetales  

Microsoft Academic Search

This study was aimed to develop a fast technique of Fourier transform infrared (FTIR) spectroscopy for detection and quantification of lard adulteration in some vegetable oils, namely canola oil (Ca?O), corn oil (CO), extra virgin olive oil (EVOO), soybean oil (SO), and sunflower oil (SFO). The FTIR spectra associated with Ca?O, CO, EVOO, SO, and SFO as well as their

A. Rohman; Yaakob B. Che Man; P. Hashim; A. Ismail

2011-01-01

201

Uso y mejoramiento del analisis por activacion neutronica (metodo absoluto) para el estudio del contenido de nitrogeno en muestras vegetales. (Use and improvement of neutron activation analysis (absolute method) for the study of the nitrogen content in vegetal samples).  

National Technical Information Service (NTIS)

The experimental procedure which permit the evaluation of the contribution to the neutron flux originated by neutrons with energy lower than 14 MeV during the application of the absolute method when the irradiation geometry ca not be considered as an scat...

R. L. Soto Moran S. Szegedi J. L. Llopiz

1996-01-01

202

Los estudios de las dietas alimenticias bajas en grasa, altas en fibra y ricas en frutas y vegetales no revelan efecto alguno en la formación de nuevos pólipos colorrectales en personas con antecedentes de pólipos precancerosos  

Cancer.gov

Dos nuevos estudios sobre el impacto nutricional en personas con alto riesgo de desarrollar cáncer colorrectal no mostraron evidencia de que la dieta afecta la formación de pólipos colorectales precancerosos (pólipos adenomatosos o adenomas) en personas a las que ya se les extrajo un pólipo.

203

Conocimientos y creencias acerca de la donación de órganos y tejidos en la Ciudad de México 1 Beliefs and knowledge about the donation of organs and tissues in México City  

Microsoft Academic Search

This study was developed in order to determine people's beliefs in regard to organ donation in México City. Donating organs and tissues is an act in which a person shows an altruistic beha- viour by ceding some of his\\/her organs or tissues to someone else for the purpose of improving the other's health. In order to find out beliefs on

Georgina Lozano Razo; Sofía Liberman Shkolnikoff; María Emily; Ito Reiko Sugiyama; Patricia Andrade Palos

2005-01-01

204

Doação de órgãos e tecidos no Brasil: podemos evoluir? Organ and tissues donation in Brazil: can we evolve? Donación de órganos y de tejidos en el Brasil: ¿podemos desarrollarnos?  

Microsoft Academic Search

ReSumO: Desde 1997, quando da aprovação da chamada Lei dos transplantes, até os dias de hoje, tivemos várias oportunidades de esclarecimentos à população acerca da doação de órgãos e tecidos no Brasil. Adicionalmente, também tivemos um importante avanço nessa área, possibilitando aos profis- sionais mudanças e melhorias em suas práticas assistenciais. Mas ainda buscamos não somente entender o significado da

Bartira De Aguiar Roza; Ben-Hur Ferraz Neto; Tadeu Thomé; Janine Schirmer

205

La apariencia óptica de las células y los tejidos patológicos desentrañada a través del microscopio electrónico. Bases ultraestructurales de la microscopía óptica The light microscopic appearance of pathologic cells and tissues revealed through the electron microscope  

Microsoft Academic Search

SUMMARY The electron microscope provides detailed information on cell and tissue structure, as well as on their functional modifications under physiologic and pathologic conditions. All these findings have a direct translation into how these same cells look under the light microscope. In the present article, the main light microscopic features of the cell cyto- plasm, the nucleus, and the extracellular

Josep Lloreta Trull

206

Contribuicao ao estudo dos mecanismos de reparacao em Staphylococcus epidermidis: caracterizacao de mutantes sensiveis as radiacoes ultravioleta. (Contribution to the safety of repairing mechanisms in Staphylococcus epidermidis: characterization of mutants sensible to ultraviolet radiation).  

National Technical Information Service (NTIS)

Mutants obtained from N - methyl -N' - nitro - N - nitrosoguanidine (MNNG) treatment of the W(sub 5) strain or Staphylococcus epidermidis and selected for their increased UV - sensitivity were characterized according to their capacity to repair DNA damage...

H. C. Rocha Guillobel

1985-01-01

207

Sight and Sound: The Sensible and Sensitive Use of Audio-Visual Aids. Reports of the Working Committees of the Northeast Conference on the Teaching of Foreign Languages, 1969.  

ERIC Educational Resources Information Center

Included in this volume are the reports dealing with the effective use of audiovisual media in foreign language instruction and developed by the working committees of the sixteenth annual Northeast Conference on the Teaching of Foreign Languages. Six individuals prepared the media descriptions and selected the demonstrations described in the…

Edgerton, Mills F., Jr., Ed.

208

Leaves of Citrus aurantifolia exhibit a different sensibility to solar UV-B radiation according to development stage in relation to photosynthetic pigments and UV-B absorbing compounds production  

Microsoft Academic Search

Plants of Citrus aurantifolia grown in a greenhouse without solar UV radiation (UVR) were transferred outdoors to evaluate the effect of solar UV-B radiation (UVBR, 280–315nm) in prior-developed leaves, constituted by apical bud and those fully expanded before being taken outdoors, and post-developed leaves, formed by those expanded outdoors. Results demonstrated that over a 40 d outdoor period leaf chlorophyll

Silvina Ibañez; Mariana Rosa; Mirna Hilal; Juan A. González; Fernando E. Prado

2008-01-01

209

El cáncer según su ubicación en el cuerpo: Endocrino y neuroendocrino  

Cancer.gov

Lista de los tipos de cáncer que se forman en los tejidos neuroendocrinos y tejidos del cuerpo que secretan hormonas. Esta página contiene enlaces e información sobre tratamiento, estudios clínicos y otros temas.

210

Analyse du bruit des transistors a effet de champ en technologie complementaire MOS et application a la realisation d'un amplificateur integre sensible au courant. (Analysis of the background noise of field effect transistors in MOS complementary technology and application in the construction of a current-sensitive integrated amplifier).  

National Technical Information Service (NTIS)

A low noise amplifier for use in high energy physics is developed. The origin and the mechanisms of the noise in MOSFET transistors is carried out with the aim of minimizing such effects in amplifiers. The research is applied in the construction of a curr...

E. Beuville

1989-01-01

211

La TEP\\/TDM au FDG(18F) apparaît plus sensible que la scintigraphie osseuse planaire et tomographique aux bisphosphonates(99mTc) dans la récidive du sarcome d’Ewing à localisations ostéomédullaires. À propos d’une observation de sarcome d’Ewing à localisation initiale mandibulaire et récidive sternale chez un enfant de 13 ans et revue de la littérature  

Microsoft Academic Search

Today, bone scintigraphy still remains a mainstay imaging modality for the baseline work-up, the follow-up and the diagnosis of recurrence by osteomedullary metastases in Ewing's sarcoma (ES). We describe the case of a 13-year-old teenager diagnosed with an Ewing's sarcoma of mandible associated to a right sixth rib metastasis. Initial bone scintigraphy displayed a mandibular hot spot related to the

A. Girma; F. Paycha; P. Carrier; M. Razzouk; A. Deville; M. Piche; C. Boyer; J. Darcourt

2009-01-01

212

Subcutaneous photophores in the jumbo squid Dosidicus gigas (d'Orbigny, 1835) (Cephalopoda: Ommastrephidae) Fotóforos subcutáneos en el calamar gigante Dosidicus gigas (d'Orbigny, 1835) (Cephalopoda: Ommastrephidae)  

Microsoft Academic Search

Resumen.- En Dosidicus gigas se observaron pequeñas inclusiones de color amarillo pálido embebidas a distintas profundidades en el músculo del manto, las que corresponden a fotóforos. A nivel histológico los fotóforos están formados por un tejido fotogenerador, que se tiñe de color naranja intenso con tinción tricrómica de Mallory y un tejido vacuolar, que lo rodea y penetra en éste,

Karin B. Lohrmann

2008-01-01

213

[Aesthesiometry of the cornea after refractive corneal surgery].  

PubMed

The corneal sensibility was examined with the aesthesiometer of Draeger in 41 patients after refractive corneal surgery, 31 patients after radial keratotomy, 5 after epikeratophakia, 5 after excimer laser ablation. It could be shown that after radial corneal incisions the sensibility remains normal. After epikeratophakia the corneal sensibility is asensible even 3 years after operation. The lenticle periphery shows an increase of sensibility after 6 months. Excimer patients with "haze" showed a significant hyposensibility in the centre. The central sensibility showed normal values after a normal corneal wound healing. PMID:1453657

Kohlhaas, M; Draeger, J; Böhm, A; Lombardi, M; Abbondanza, M; Zuppardo, M; Görne, M

1992-10-01

214

Linfedema (PDQ®)  

Cancer.gov

Resumen de información revisada por expertos sobre la anatomía, la patofisiología, las manifestaciones clínicas, el diagnóstico y el tratamiento del linfedema relacionado con el cáncer, una afección en la que se acumula líquido linfático en los tejidos y causa inflamación..

215

Informes de patología  

Cancer.gov

Hoja informativa que describe el tipo de información que puede aparecer en un informe de patología, el cual contiene los resultados de la examinación visual y microscópica del tejido extirpado durante una biopsia o cirugía.

216

Radiography of the Upper Extremity  

MedlinePLUS

... de los tejidos blandos y artritis. El médico le pedirá este procedimiento cuando tenga una lesión en ... Paciente Antes de su examen, un técnico radiólogo le explicará el procedimiento y responderá a sus preguntas. ...

217

FIRE_AX_ECMWF_SFDIAG  

... Point Temperature Evaporation Precipitation Solar Radiation Surface Latent Heat Flux Surface Sensible Heat Flux Surface Stress Temperature Thermal Radiation Wind Speed Order Data:  ASDC Order Tool: Order Data ...

2014-05-06

218

Preventing Infections in the Hospital - What You Can Do  

MedlinePLUS

... Infections in the Hospital Preventing Infections in the Hospital With attention increasing on the incidence of infection in hospitals, patients everywhere need sensible principles to manage their ...

219

Solar energy conversions in the greenhouses  

Microsoft Academic Search

For the greenhouse thermal analysis, it is essential to know the amount of solar radiation that was utilized by the greenhouse and consequently converted into sensible and latent heat via convection and evapo-transpiration. Parameters are frequently used for this purpose are: utilization efficiency factor (?), and sensible and latent heat factors (? and ?). Previous studies considered these factors as

Ahmed M. Abdel-Ghany

2011-01-01

220

Ergonomics Automotive Design Recommendation Using Image Based Collaborative Filtering  

Microsoft Academic Search

An analysis of customers' sensibility and preferences is an important business strategy in a motor industry that is increa-singly becoming more customer oriented. This paper proposes ergonomics automotive design recommendation using the image based collaborative filtering. The proposed method applies a method that supports car design using the image based collaborative filtering utilizing sensibility as a starting point in the

Ho-Ill Jung; Sun-Moon Jo; Kee-Wook Rim; Jung-Hyun Lee; Kyung-Yong Chung

2012-01-01

221

Steam traps; A vital link to energy control  

Microsoft Academic Search

Two types of heat are present in steam - sensible and latent. Sensible heat is heat that can be sensed with a thermometer. Latent heat cannot be sensed, but it is still present and is given off when steam condenses. A steam trap stops or traps the steam until it gives up its latent heat and condenses. The steam trap

Giovanetto

1991-01-01

222

Improving air conditioning with heat pipes  

Microsoft Academic Search

As demands to improve product quality and employee comfort increase, industrial plants are recognizing the need to control indoor air moisture levels more effectively. The challenge for every air conditioning system involves lowering inside air temperature (sensible cooling) and removing moisture from that air (latent cooling). A typical air conditioning load is between 70% and 80% sensible cooling and 15%

1996-01-01

223

Oil shale heat-capacity relations and heats of pyrolysis and dehydration  

Microsoft Academic Search

New relations are developed for calculating enthalpy changes during heating, retorting, or cooling of raw, spent, or burned oil shales of various compositions. The relations describe the sensible heats of the minerals, kerogen, and char, and the reaction heats of kerogen pyrolysis and bound-water dehydration. The mineral sensible heat is obtained by summing the ''handbook'' enthalpy values of the constituent

1987-01-01

224

Visit a Farm? Surely Not!  

ERIC Educational Resources Information Center

Popular myth has it that visiting a farm can be dangerous, but there are only a few occasions when children have become ill during a school visit to a farm. Simple, sensible precautions, including wearing appropriate clothing, such as trousers and wellington boots (if wet) or sensible shoes, and careful hand-washing, are all that is required. The…

Graham, Bill

2012-01-01

225

A novel Sagnac fiber sensor  

Microsoft Academic Search

It is well known that as a measurement device, Sagnac fiber interferometer has the advantages of high measuring sensibility and strong antijamming ability. However, it is precisely because of the high sensibility, the measured change range of sensed quantities is usually very small. And also because of the strong antijamming ability, the fiber of Sagnac interferometer can not be used

Wei Liu; Shiya He; Shuyang Hu; Tiecheng Guo; Kuanxin Yu

2007-01-01

226

Analysis of colon tumors in rats by near-infrared Raman spectroscopy  

Microsoft Academic Search

Biomedical applications of near-infrared Raman spectroscopy have increased their importance at the last ten years. This technique can determinate the molecular composition of materials, allowing a sensible and fast biological diagnosis. It has showed to be a promising tool for health diagnosis due to its high sensibility. Colorectal cancer (CRC) is one of the most common malignant tumors in humans

Janaína Duarte; Raduan Hage; Landulfo Silveira Jr.; Fabricio Silveira; Marcos Tadeu T. Pacheco; Egberto Munin; Hélio Plapler

2007-01-01

227

Some evaluations of drag and bulk transfer coefficients over water bodies of different sizes  

Microsoft Academic Search

Three recent experiments allow evaluation of the bulk transfer coefficients for momentum, water vapour and sensible heat over water bodies of different sizes. As part of a study of evaporation rates from a swamp, measurements of latent and sensible heat fluxes were made over Lake Wyangan in southern N.S.W., Australia. This lake is of several kilometers diameter. In a later

B. B. Hicks

1972-01-01

228

Como Lo Hago Yo: Myelomeningocele  

PubMed Central

Fortificación con ádico fólico es efectiva, pero aún falta conciencia en los jóvenes. La legalidad del aborto aumenta la importancia de la consulta prenatal. Realizo la cirugía bajo microcoscopio por razones didácticas. Irrigación continua para reducir la temperatura del tejido. Trato a la plaqueta como tejido viable. No suturo la plaqueta. No cierro músculo. ATB por una semana después de cirugía. Hidrocefalia: Válvula en todos los casos de ventriculomegalia. Médula anclada: Desanclar una sola vez. Chiari II: Revisar la válvula. Incluir en el seguimiento rendimiento escolar, puede indicar obstrucción de la válvula o médula anclada.

Lazareff, Jorge

2014-01-01

229

[Deaths in the center of life: reflections on curing and non-curing in Jesuit-Guarani missions (1609-75)].  

PubMed

The article investigates the impact of Western Christian concepts of disease and death on indigenous Guarani sensibility and their translation into social representations and practices in the Jesuit-Guarani missions of Paraguay's Jesuit Province during the seventeenth century. This research is based on a re-reading of the Cartas Anuas da Província Jesuítica do Paraguai, which encompass the 1609-75 period. The study seeks to ascertain how expressions of Guarani sensibility were appropriated by Jesuit discourse as part of the process of conversion to Christianity. It also accesses observable changes in Guarani sensibility as a result of this new mission reality. PMID:15700355

Deckmann Fleck, Eliane Cristina

2004-01-01

230

Atmospheric Radiation Measurement program facilities newsletter, May 2002.  

SciTech Connect

Eight eddy correlation (ECOR) flux measurement systems are now deployed throughout the ARM SGP CART site. These systems are used to determine the flux (flow) of sensible heat, the flux of latent heat, and air momentum just above cropland a few hundred feet upwind of the ECOR locations. Sensible heat is energy we feel as warmth. Latent heat is the energy that evaporated water vapor measured in the atmosphere. The ECOR systems actually measure wind velocity and temperature fluctuations, water vapor, and barometric pressure. The surface flux values for sensible heat, latent heat, and momentum are calculated from these measurements.

Holdridge, D. J.

2002-06-03

231

Consideraciones clínicas sobre la resorción radicular externa por impactación dentaria  

Microsoft Academic Search

La resorción externa por presión (RREP) consiste en una pérdida de tejido dentinario y cementario de las raíces dentarias que se origina a nivel del ligamento periodontal, ocasionada por presiones prolongadas y mantenidas sobre la raíz. Presentamos tres casos con diferente repercusión y tratamiento. Según el distinto grado de afecta­ ción se describe y clasifica el tratamiento de RREP a

Martínez Lozano MA; Forner Navarro L; Sánchez Cortés JL

232

Comparison of Measured and Modeled Radiation, Heat and Water Vapor Fluxes: Fife Pilot Study. Status Report April 1, 1985-December 31, 1986.  

National Technical Information Service (NTIS)

The feasibility of using radio frequency receivers to collect data from automated weather stations to model fluxes of latent heat, sensible heat, and radiation using routine weather data collected by automated weather stations was tested and the estimated...

B. L. Blad K. G. Hubbard S. B. Verma P. Starks J. M. Norman

1987-01-01

233

Desiccant Systems Save Money.  

National Technical Information Service (NTIS)

Desiccant systems can save the Navy money through lower utility bills. Traditional vapor compression air conditioning systems are required to remove both sensible heat and latent heat (humidity) by cooling the outside air below the dewpoint in order to co...

P. Kister

1996-01-01

234

Definition of the Mesoscale  

NSDL National Science Digital Library

This module provides a working definition of mesoscale meteorology. The module briefly touches on many topics crucial to forecasting mesoscale weather phenomena, such as non-hydrostatic processes, the importance of terrain, NWP model resolution, and impact on sensible weather.

Spangler, Tim

1999-05-01

235

Recent joint developments in cross-section uncertainty analysis at Los Alamos and EIR (Eidgenoessiches Institut fuer Reaktorforschung)  

SciTech Connect

This paper discusses recent developments and future plans for the SENSIBL code (the successor to the SENSIT(6) and SENSIT-2D(7) codes), along with associated covariance data and cross section libraries. 34 refs. (DWL)

Davidson, J.W.; Dudziak, D.J.; Muir, D.W.; Stepanek, J.; Higgs, C.E.

1986-01-01

236

Ecosystem Management Decision Support for Federal Forests in the United States: A Review(1,2).  

National Technical Information Service (NTIS)

Ecosystem management has been adopted as the philosophical paradigm guiding management on many federal forests in the United States. The strategic goal of ecosystem management is to find a sensible middle ground between ensuring long-term protection of th...

H. M. Rauscher

1997-01-01

237

Stratified Thermal Storage in Residential Solar Energy Applications.  

National Technical Information Service (NTIS)

The benefits of thermal stratification in sensible heat storage were investigated for several residential solar applications. The operation of space heating, air conditioning and water heating systems with water storage was simulated on a computer. The pe...

M. K. Sharp R. I. Loehrke

1978-01-01

238

Use of immuno-electro-diffusion on cellulose acetate for the research of the precipitating antibodies in the screening of patients suspected of farmer's lung disease  

Microsoft Academic Search

The authors show the use of Electro-Immuno-Diffusion on cellulose acetate in the diagnosis of Farmer's lung. This technique with its simplicity, its rapiditity, its sensibility is an interesting routine method in the detecting of this disease.

M. GariJ; P. Smets; J. M. PinonJ; P. Recco; J. P. Seguela

1982-01-01

239

Teaching-Learning Partnerships in the Arts.  

ERIC Educational Resources Information Center

Learning in the arts is a partnership involving trust, new ways of seeing, and risk taking. Teachers serve as guides, assist in cultivating aesthetic sensibility, model the lifestyle, and provide a safe haven. (SK)

Sgroi, Angela

1998-01-01

240

Mesure non intrusive du taux d'humidite residuel de la poudre d'oxyde de plutonium contenue dans des boites scellees. (Non intrusive measurement of residual moisture rate of plutonium oxide powder in sealed boxes).  

National Technical Information Service (NTIS)

This document deals with the best method to create a non intrusive measurement of residual moisture of plutonium oxide in stainless steel sealed boxes (sensibility, precision, reproducibility and feasibility in laboratory). This method is the neutron spec...

T. Pochet J. C. Edeline T. Domenech

1993-01-01

241

Distribuicao do tempo para contagem de amostras em um detetor de radiacao. (Distribution of time for counting samples in radioactivity counter).  

National Technical Information Service (NTIS)

The precision and the sensibility of measures of activity, made by a radioactivity counter, improve as function of counting time. The precision also increases as the measured activities do. This work describes an auxiliary method for division of time avai...

D. Azevedo Py Junior

1990-01-01

242

Mathematical model for infiltration heat recovery.  

National Technical Information Service (NTIS)

Infiltration has traditionally been assumed to affect the energy load of a building by an amount equal to the product of the infiltration flow rate and the sensible enthalpy difference between inside and outside. However, laboratory and simulation researc...

C. R. Buchanan M. H. Sherman

2000-01-01

243

FIRE_AX_PSU_MALBAL  

FIRE_AX_PSU_MALBAL Project Title:  FIRE II ASTEX Discipline:  Clouds Field ... Flux Liquid Water Content Precipitation Rate Sea Surface Temperature Sensible Heat Flux Solar Absorptance Solar Reflectance ...

2014-05-06

244

Oil Shale Heat-Capacity Relations and Heats of Pyrolysis and Dehydration.  

National Technical Information Service (NTIS)

New relations are developed for calculating enthalpy changes during heating, retorting, or cooling of raw, spent, or burned oil shales of various compositions. The relations describe the sensible heats of the minerals, kerogen, and char, and the reaction ...

D. W. Camp

1987-01-01

245

Pregnancy and Nutrition  

MedlinePLUS

... than ever. You need more protein, iron, calcium, and folic acid than you did before pregnancy. You ... Sensible, balanced meals will be best for you and your baby. You should gain weight gradually during ...

246

Characterization of the Work Hardening Structure of Austenitic Steels by X-Ray Diffraction. Application to the Determination of Work Hardening Gradients and the Study of Recovery.  

National Technical Information Service (NTIS)

A method has been developed to determine quantitatively the work hardening of austenitic steels by measurement of the broadening of X-ray diffraction lines. This simple, rapid, accurate and sensible method enables to determine work hardening variations in...

R. Cadalbert J. L. Baron

1977-01-01

247

Mapping Nuclear Fallout Using the Weather Research & Forecasting (WRF) Model.  

National Technical Information Service (NTIS)

There are many models that attempt to predict transport & dispersion (T&D) of particulate matter in the sensible atmosphere. The majority of these existing models are unable to incorporate atmospheric processes such wet deposition through scavenging and c...

J. C. Schofield

2012-01-01

248

Reflexion tomography: what information is comprised in the incoming times.  

National Technical Information Service (NTIS)

Tomography, or incoming time inversion, is used for underground structure determination. The aim of this study is to examine the physical instabilities that hinder its utilization. Sensibility to data small pertubations and to model discretization variati...

F. Delprat-Jannaud

1991-01-01

249

Thermal energy storage: Basics, design, applications to power generation and heat supply  

SciTech Connect

This book discusses the history of thermal energy storage, storage of sensible heat in saturated fluids and in solids, and storage in gas turbine power plants. The author provides chapter bibliographies.

Beckmann, G.; Gilli, P.V.

1984-01-01

250

Can We Be Behaviorists and Humanists Too?  

ERIC Educational Resources Information Center

Teachers who are frantically dissecting their curriculum materials into strings of behavioral objectives a yard long or who are under pressure to do so will find sensible advice in this article. (Editor)

Dumas, Wayne

1973-01-01

251

A two-source time-integrated model for estimating surface fluxes using thermal infrared remote sensing  

Microsoft Academic Search

We present an operational two-source (soil+vegetation) model for evaluating the surface energy balance given measurements of the time rate of change in radiometric surface temperature (TRAD) during the morning hours. This model consists of a two-source surface component describing the relation. between TRAD and sensible heat flux, coupled with a time-integrated component connecting surface sensible heating with planetary boundary layer

M. C. Anderson; J. M. Norman; G. R. Diak; W. P. Kustas; J. R. Mecikalski

1997-01-01

252

Evaluating eddy covariance cotton ET measurements in an advective environment with large weighing lysimeters  

Microsoft Academic Search

Eddy covariance (EC) systems are being used to assess the accuracy of remote sensing methods in mapping surface sensible and\\u000a latent heat fluxes and evapotranspiration (ET) from local to regional scales, and in crop coefficient development. Therefore,\\u000a the objective was to evaluate the accuracy of EC systems in measuring sensible heat (H) and latent heat (LE) fluxes. For this\\u000a purpose,

José Luis Chávez; Terry A. Howell; Karen S. Copeland

2009-01-01

253

Waste heat driven absorption refrigeration process and system  

DOEpatents

Absorption cycle refrigeration processes and systems are provided which are driven by the sensible waste heat available from industrial processes and other sources. Systems are disclosed which provide a chilled water output which can be used for comfort conditioning or the like which utilize heat from sensible waste heat sources at temperatures of less than 170.degree. F. Countercurrent flow equipment is also provided to increase the efficiency of the systems and increase the utilization of available heat.

Wilkinson, William H. (Columbus, OH) [Columbus, OH

1982-01-01

254

Real Gas Effects on the Performance of Hydrocarbon-Fueled Pulse Detonation Engines  

NASA Technical Reports Server (NTRS)

This paper presents results for a single-pulse detonation tube wherein the effects of high temperature dissociation and the subsequent recombination influence the sensible heat release available for providing propulsive thrust. The study involved the use of ethylene and air at equivalence ratios of 0.7 and 1.0. The real gas effects on the sensible heat release were found to be significantly large so as to have an impact on the thrust, impulse and fuel consumption of a PDE.

Povinelli, Louis A.; Yungster, Shaye

2003-01-01

255

Chemometric Analysis of Excitation Emission Matrices of Fluorescent Nanocomposites  

Microsoft Academic Search

The performance of multivariate curve resolution (MCR-ALS) to decompose sets of excitation emission matrices of fluorescence\\u000a (EEM) of nanocomposite materials used as analytical sensors was assessed. The two fluorescent nanocomposite materials were:\\u000a NH2-polyethylene glycol (PEG200) functionalized carbon dots, sensible to aqueous Hg(II) (CD); and, CdS quantum dots attached\\u000a to the dendrimer DAB, sensible to the ionic strength of the aqueous

João M. M. Leitão; Roma Tauler; Joaquim C. G. Esteves da Silva

256

Comparative Analysis of Evapotranspiration Using Eddy Covariance  

NASA Astrophysics Data System (ADS)

The eddy covariance method has been widely used to quantify evapotranspiration. However, independent measurements of energy components such as latent heat flux, sensible heat flux often lead to under-measurements, this is commonly known as a lack of closure of the surface energy balance. In response to this methodological problem, this study is addressed specifically to correction of the latent and heat sensible fluxes. The energy components observed in agricultural and grassland from January 2013 were measured using the eddy covariance method. As a result of the comparison of the available energy (Rn-G) with the sum of the latent and sensible heat fluxes, R-Squared values were 0.72 in the agricultural land, 0.78 in the grassland, indicating that the latent and sensible heat fluxes were under-measured. The obtained latent and sensible heat fluxes were then modified using the Bowen-ratio closure method. After this correction process, the values of the sum of the latent and sensible heat fluxes have increased by 39.7 percent in the agricultural land, 32.2 percent in the grassland respectively. Evapotranspiration will be calculated with both the unmodified and modified latent heat flux values, the results will be then thoroughly compared. The results will be finally verified by comparison with evapotranspiration obtained from energy balance based model.

BAE, H.; Ji, H.; Lee, B.; Nam, K.; Jang, B.; Lee, C.; Jung, H.

2013-12-01

257

[Computer management of the data of automated perimetry using Octopus 2000 R].  

PubMed

Current perimetry involves automated, static and punctual procedures, which permit the examiner to obtain a numerical value of the sensibility concerning the points tested. Besides its precision and its reliability, perimetry can be used in data processing management due to the characteristic of easy duplication of the examinations. We use a micro-computer which is seperate from the Octopus 2000 R (Apple IIc) and the disc (OmnisII) to process the files. The study is composed of the following areas: the storage and the data processing of patient files, the transformation of numerical data a graphics display, the study of the percentage of loss of surface according to the decibel of sensibility. The data processing of files improves storage according to the criteria defined by the examiner and helps avoid inconvienent research. The graphic transformation of numerical data into isopteres of chosen sensibility improves the definition of the zones of intermediate sensibility. The calculations of the percentage of loss of surface according to the decibel of sensibility allows the appreciation of the size of defects based on depth and quantification. It is also easy to make the comparison between the two fields. PMID:3833879

Weiss, D; Delbosc, B; Pradines, F; Royer, J

1985-01-01

258

The impact of the International Atomic Energy Agency (IAEA) program on radiation and tissue banking in Uruguay: development of tissues quality control and quality management system in the National Multi-Tissue Bank of Uruguay  

Microsoft Academic Search

BNOT was created and regulated in 1977 and started its operation in 1978 according to the Decree No. 86\\/1977. By the Decree\\u000a 248\\/005 is transformed in the National Institute of Donation and Transplantation of Cells, Tissues and Organs (Instituto Nacional\\u000a de Donación y Trasplante de Células, Tejidos y Órganos—INDT). The organisation has been operating within the State University\\u000a Medical School

I. Álvarez; Jorge Morales Pedraza; M. C. Saldías; H. Pérez Campos; O. Wodowóz; María Acosta; W. Vicentino; W. Silva; G. Rodríguez; D. Machín; O. Álvarez

2009-01-01

259

Clinical Results of an Autologous Engineered Skin  

Microsoft Academic Search

Introduction: An artificial complete skin (dermis and epidermis) model has been developed in the Tissue engineering unit of the Centro\\u000a Comunitario de Sangre y Tejidos del Principado de Asturias (CCST) and CIEMAT. This engineered skin has been employed for the\\u000a treatment of severe epithelial injuries. In this paper, the clinical results obtained with this engineered skin during the\\u000a last 18 months

Sara Llames; Eva García; Verónica García; Marcela del Río; Fernando Larcher; Jose Luis Jorcano; Eva López; Purificación Holguín; Francisca Miralles; Jesús Otero; Alvaro Meana

2006-01-01

260

Comparison of measured and modeled radiation, heat and water vapor fluxes: FIFE pilot study  

NASA Technical Reports Server (NTRS)

The feasibility of using radio frequency receivers to collect data from automated weather stations to model fluxes of latent heat, sensible heat, and radiation using routine weather data collected by automated weather stations was tested and the estimated fluxes were compared with fluxes measured over wheat. The model Cupid was used to model the fluxes. Two or more automated weather stations, interrogated by radio frequency and other means, were utilized to examine some of the climatic variability of the First ISLSCP (International Satellite Land-Surface Climatology Project) Field Experiment (FIFE) site, to measure and model reflected and emitted radiation streams from various locations at the site and to compare modeled latent and sensible heat fluxes with measured values. Some bidirectional reflected and emitted radiation data were collected from 23 locations throughout the FIFE site. Analysis of these data along with analysis of the measured sensible and latent heat fluxes is just beginning.

Blad, Blaine L.; Hubbard, Kenneth G.; Verma, Shashi B.; Starks, Patrick; Norman, John M.; Walter-Shea, Elizabeth

1987-01-01

261

Surface energy and radiation balance systems - General description and improvements  

NASA Technical Reports Server (NTRS)

Surface evaluation of sensible and latent heat flux densities and the components of the radiation balance were desired for various vegetative surfaces during the ASCOT84 experiment to compare with modeled results and to relate these values to drainage winds. Five battery operated data systems equipped with sensors to determine the above values were operated for 105 station days during the ASCOT84 experiment. The Bowen ratio energy balance technique was used to partition the available energy into the sensible and latent heat flux densities. A description of the sensors and battery operated equipment used to collect and process the data is presented. In addition, improvements and modifications made since the 1984 experiment are given. Details of calculations of soil heat flow at the surface and an alternate method to calculate sensible and latent heat flux densities are provided.

Fritschen, Leo J.; Simpson, James R.

1989-01-01

262

Comparison of ground-derived and satellite-derived surface energy fluxes from a shrub-steppe site  

SciTech Connect

Efforts to measure evapotranspiration (ET) remotely are common in agriculture, and the application of such data to irrigation scheduling is readily apparent. Extending this methodology to arid environments is primarily of use as a mechanism for validation of ET algorithms used in large-scale watershed and global climate change modeling efforts. To facilitate testing of the remote sensing method for ET, measurements of sensible and latent heat flux were made at four sites located on the US Department of Energy`s Hanford Site using a combination of lysimeter and Bowen Ratio Energy Balance (BREB) stations. The objective was to calibrate an aerodynamic transport equation that relates sensible heat flux to radiant surface temperature, and to map sensible heat flux using Landsat data.

Kirkham, R.R.; Gee, G.W. [Pacific Northwest Lab., Richland, WA (United States); Fritschen, L.J. [Washington Univ., Seattle, WA (United States)

1994-03-01

263

[Value of ultrasound and retrograde pancreatocholangiography in the diagnosis of pancreatic diseases].  

PubMed

26 patients with pancreatic disease were studied with ultrasound (US) and endoscopic retrograde cholangiopancreatography (ERCP). Results were compared in terms of selectivity, sensibility and specificity. In spite of similarity of both techniques regarding selectivity and sensibility, US appeared to be more specific. Combination of US and ERCP improved considerably the capacity to visualize the gland and to detect its alterations. Additional information obtained about the pancreas from the evaluation of bile ducts with both methods was considered careful and contributed to appraise even more these explorations. PMID:6816660

Poleo, J R

1981-01-01

264

Hydride heat pump with heat regenerator  

NASA Technical Reports Server (NTRS)

A regenerative hydride heat pump process and system is provided which can regenerate a high percentage of the sensible heat of the system. A series of at least four canisters containing a lower temperature performing hydride and a series of at least four canisters containing a higher temperature performing hydride is provided. Each canister contains a heat conductive passageway through which a heat transfer fluid is circulated so that sensible heat is regenerated. The process and system are useful for air conditioning rooms, providing room heat in the winter or for hot water heating throughout the year, and, in general, for pumping heat from a lower temperature to a higher temperature.

Jones, Jack A. (Inventor)

1991-01-01

265

Parameterization of surface heat fluxes above a forest with satellite thermal sensing  

NASA Technical Reports Server (NTRS)

The authors discuss the feasibility of determining the surface flux of sensible heat from forests with surface temperatures measured by satellites together with temperature soundings in the unstable atmospheric boundary layer (ABL). The latent heat flux is derived from the sensible heat flux by means of the energy budget. The study makes use of data collected during HAPEX-MOBILHY (Hydrologic Atmospheric Pilot Experiment-Modelization du Bilan Hydrique). The methodology is based on turbulence similarity for the unstable ABL. The surface temperature data were derived from measurements by the advanced very high resolution radiometer (AVHRR) aboard the NOAA-9 satellite; the atmospheric profiles were obtained by radiosondes.

Brutsaert, Wilfried; Hsu, A. Y.; Schmugge, Thomas J.

1992-01-01

266

Scintillometer Intercomparison Study—Continued  

NASA Astrophysics Data System (ADS)

An earlier study by one of the authors reported significant differences of up to 21% in linear regression slopes between six Kipp & Zonen large-aperture scintillometers. In this note, the consistency of this increasingly popular instrument for measuring sensible heat fluxes at the km scale was quantified by comparing measurements from four Scintec boundary-layer scintillometers and one large-aperture scintillometer over nearly identical transects. The Kipp & Zonen instrument’s sensible heat fluxes were more than 20% larger than those from the Scintec instruments, while the difference in regression slopes amongst the Scintec instruments was 3% or less.

Kleissl, J.; Watts, C. J.; Rodriguez, J. C.; Naif, S.; Vivoni, E. R.

2009-03-01

267

The small and large D limit of Parikh–Wilczek tunneling model for Hawking radiation  

NASA Astrophysics Data System (ADS)

In this note, we study both the small and large dimension D limit of the tunneling model of Hawking radiation proposed by Parikh and Wilczek (2000 Phys. Rev. Lett. 85 5042). We confirm that the result is still valid for arbitrary . The sensible large D limit is given by in order to have nonzero radiation. On the other hand, the sensible small D limit is given by taking as a continuous parameter. We also explicitly show the leading order correction to the thermal radiation and discuss its connection to the two-dimensional dilaton gravity.

Wei, June-Yu; Wen, Wen-Yu

2014-07-01

268

Feature Extraction on Brain Computer Interfaces using Discrete Dyadic Wavelet Transform: Preliminary Results  

NASA Astrophysics Data System (ADS)

The purpose of this work is to evaluate different feature extraction alternatives to detect the event related evoked potential signal on brain computer interfaces, trying to minimize the time employed and the classification error, in terms of sensibility and specificity of the method, looking for alternatives to coherent averaging. In this context the results obtained performing the feature extraction using discrete dyadic wavelet transform using different mother wavelets are presented. For the classification a single layer perceptron was used. The results obtained with and without the wavelet decomposition were compared; showing an improvement on the classification rate, the specificity and the sensibility for the feature vectors obtained using some mother wavelets.

Gareis, I.; Gentiletti, G.; Acevedo, R.; Rufiner, L.

2011-09-01

269

Uncertainty and sensitivity analysis for the environmental tritium code UFOTRI  

Microsoft Academic Search

Computer models are used for predicting the impact of tritium releases. Their reliability, when experimental data are limited, can be judged from benchmark tests and uncertainty analysis. First results of a parameter uncertainty and sensibility analysis are presented for the environmental tritium code UFOTRI. The uncertainty range is shown to be less than one order of magnitude. The bulk of

D. Galeriu; P. Davis; S. Chouhan; W. Raskob

1995-01-01

270

The Retention/Promotion Checklist.  

ERIC Educational Resources Information Center

This book focuses on how elementary school teachers and administrators can make sensible, well-reasoned, and defensible retention and promotion decisions. The book contains a reproducible retention/promotion checklist made up of questions selected on the basis of factors that have an impact on school success or failure. Checklist summary and…

Grant, Jim; Richardson, Irv

271

Green Guilt  

Microsoft Academic Search

The essay discusses the more neurotic aspects of environmentalism, involving guilt over failure to recycle or turn off the lights. It notes that those most prone to these sensibilities are those who have left traditional religion. It quotes philosopher Friedrich Nietzsche who states that religious emotions such as guilt and indignation are still present in a post-Christian world. The essay

Stephen T Asma

2010-01-01

272

Ben Franklin's Scientific Amusements  

Microsoft Academic Search

As an American icon, Benjamin Franklin is often portrayed as wise and canny in business and politics, earnestly pursuing and extolling diligence, sensible conduct, pragmatism, and good works. Also legendary are some of his inventions, particularly the lightning rod, bifocals, and an efficient wood-burning stove. The iconic image is misleading in major respects. Today, surprisingly few people appreciate that, in

Dudley Herschbach

2003-01-01

273

Ecosystem management decision support for federal forests in the United States: A review 1 Presented at the Firest Biennial North American Forest Ecology Workshop, 23–26 June 1997, Raleigh, NC. 1 2 The opinions expressed by the author do not mecessarily represent the policy or position of the U.S. Department of Agriculture or the Forest Serviece. 2  

Microsoft Academic Search

Ecosystem management has been adopted as the philosophical paradigm guiding management on many federal forests in the United States. The strategic goal of ecosystem management is to find a sensible middle ground between ensuring long-term protection of the environment while allowing an increasing population to use its natural resources for maintaining and improving human life. Ecosystem management has all the

H. Michael Rauscher

1999-01-01

274

Diabatic heating fields and the generation of available potential energy during FGGE  

NASA Technical Reports Server (NTRS)

Global diabatic heating is estimated using fields of directly computed heating components, in particular those due to shortwave radiation, longwave radiation, sensible heating, and latent heating produced every 6 hours. The role of average fields of diabatic heating in the generation of available potential energy is examined. It is observed that latent heating is most significant in generating available potential energy.

Salstein, David A.; Rosen, Richard D.; Baker, Wayman E.; Kalnay, Eugenia

1986-01-01

275

More Than a Mascot.  

ERIC Educational Resources Information Center

Describes how several school districts have coped with protracted and contentious community debate over the retirement of high school Native American team names and mascots, when Native American sensibilities clash with high school rituals and traditions. Offers tips on how to deal with the Native American mascot issue. (PKP)

Riede, Paul

2001-01-01

276

Antioxidant supplementation and endurance training: Win or loss?  

Microsoft Academic Search

Typically, free radicals are thought of as perpetrators of cell damage, ageing, even cancer, whereas antioxidants are seen as the defence against these threats. Accordingly, antioxidants are among the most common sports supplements used by amateur and professional athletes. However, the sensibility of this practice has recently been challenged in the scientific literature. This article briefly summarizes both positive and

Micah Gross; Oliver Baum; Hans Hoppeler

2011-01-01

277

They Said So on the News: Parsing Media Reports About Birth  

PubMed Central

In this column, the authors reprise recent selections from the Lamaze International research blog, Science & Sensibility. Each selection discusses shortcomings in the news media coverage of childbirth issues. The authors demonstrate how to identify misleading claims in the media and highlight how childbirth educators can apply a common-sense approach and careful fact checking to help women understand the whole story.

Romano, Amy M.; Lythgoe, Andrea; Goer, Henci

2010-01-01

278

Urban Children and Intellectual Emancipation: Video Narratives of Self and Place in the City of Milwaukee  

ERIC Educational Resources Information Center

This study uses an interdisciplinary framework inspired by Ranciere (1991, 2009, 2010) ideas such as "intellectual equality," "redistribution of the sensible," and "aesthetic heterogenesis" to analyze the production of video-narratives of self and place within a group of Latino eight-year-olds attending public school in Milwaukee. The essay film,…

Trafi-Prats, Laura

2012-01-01

279

PRELIMINARY SAFETY ANALYSIS REPORT FOR THE LITHIUM COOLED REACTOR EXPERIMENT (LCRE)  

Microsoft Academic Search

Modifications to the reactor test facility are described, and a maximum ; accident in which pipes break permitting coolant loss with resultant core ; meltdown is analyzed. A burst-cnergy release of 1.5 x 10⁶ Btu is ; considered. A pressure-temperature time history is calculated, taking into ; account fission product decay heat, chemical reaction heat, and sensible heat of ;

C. C. Bigelow; P. Cole; D. T. Hedden; W. J. Fader; E. V. Sandin

1962-01-01

280

Improvement of surface flux calculation: A study based on measurements over alpine meadow in the eastern Tibet Plateau in summer  

NASA Astrophysics Data System (ADS)

An improved flux-gradient relationship between momentum ?m(?) and sensible heat ?h(?) is obtained by the use of the observational data over an alpine meadow in the eastern Tibet Plateau, in Maqu of China during the period June to August, 2010. The empirical coefficients of Businger—Dyer type function for the cases of unstable and stable stratification are modified. Non-dimensional vertical gradients of wind and potential temperature are calculated by three fitting functions; that is, the log—linear, log—square, and log—cubic functions, respectively. It is found that the von Karman constant approaches 0.4025 and the Prandtl number is about 1.10 based on the measurements in near-neutral conditions, which are within reasonable range proposed in previous studies. The revised flux-gradient profile functions of -1/5 power law for momentum and -1/3 power law for sensible heat are best fitted in unstable stratification conditions. Meanwhile, 2/5 power law, instead of linear functions, is more appropriate in stable stratification cases for momentum and sensible heat. Compared with results from previous studies in which traditional functions are used, the momentum and sensible heat fluxes estimated by the revised profile functions in the current study are much closer to the observations for the unstable and stable stratification conditions.

Li, Sen; Zhong, Zhong

2014-02-01

281

A semiconductor ridge micro cavity to generate counterpropagating twin photons  

Microsoft Academic Search

A semiconductor ridge microcavity is designed to generate counterpropagating twin photons by parametric fluorescence. This device is suitable as a narrow bandwidth source of twin photons at 1.55 mum working at room temperature. A sensible efficiency improvement due to the presence of the vertical cavity is demonstrated. The degree of frequency correlation can be controlled through the pump field spatial

X. Caillet; V. Berger; G. Leo; I. Sagnes; S. Ducci

2009-01-01

282

Movidas Rascuaches: Strategies of Migrant Resistance at the Mexico-U.S. Border  

ERIC Educational Resources Information Center

In the field of Chicana/o arts and letters, "rasquachismo" refers to the celebration of the sensibility of "los de abajo" (the underdogs), whose resourcefulness and ingenuity permit them to overcome adversity by stitching together the tools needed to survive from whatever materials they have at hand. In this article, I apply the concept of…

Spener, David

2010-01-01

283

The Past Is All before Us: The History of Education in Hard Times  

ERIC Educational Resources Information Center

In this article, the author explores these questions--from what position, with what focus, and through what methods can a history be produced that is sensible of the conflicts and passions of its own time, and that can illuminate those of the past?--estimating that the books under review in several ways invite such a demanding reading. Gary…

Jones, Ken

2012-01-01

284

Mesoscale Severe Weather Development under Orographic Influences.  

National Technical Information Service (NTIS)

Measurements of surface energy budgets have been carried out at several sites in the Colorado Rocky Mountains, in the Kansas Prairie, in the Gobi Desert and in Tibet. The fluxes of sensible heat, H sub S, from the surface could be estimated as functions o...

E. R. Reiter J. D. Sheaffer M. A. Klitch

1989-01-01

285

Vegetation-atmosphere interaction in homogeneous and heterogeneous terrain: some implications of mixed-layer dynamics  

Microsoft Academic Search

This paper considers the modelling of available energy partition into sensible and latent heat at land surfaces, inter alia for GCM applications. In a preliminary discussion, processes at canopy scale are reviewed briefly by outlining two classes of model: comprehensive, multilayer Canopy-Atmosphere Models (CAMs) which attempt to include all physical and biological processes influencing the canopy microclimate and atmospheric exchanges,

M. R. Raupach

1991-01-01

286

On the design of an interactive biosphere for the GLAS general circulation model  

NASA Technical Reports Server (NTRS)

Improving the realism and accuracy of the GLAS general circulation model (by adding an interactive biosphere that will simulate the transfers of latent and sensible heat from land surface to atmosphere as functions of the atmospheric conditions and the morphology and physiology of the vegetation) is proposed.

Mintz, Y.; Sellers, P. J.; Willmott, C. J.

1983-01-01

287

Energy performance of independent air dehumidification systems with energy recovery measures  

Microsoft Academic Search

Independent air dehumidification provides an attractive alternative to traditional coupled air dehumidification with reduced energy use, better humidity control and indoor air quality. According to this concept, latent load is treated by an independent system and the sensible load is treated by chilled-ceiling panels. In this work, four independent air dehumidification systems with energy recovery strategies are proposed. They are

L. Z. Zhang

2006-01-01

288

Mediating Third-Wave Feminism: Appropriation as Postmodern Media Practice.  

ERIC Educational Resources Information Center

Analyzes gendered representations of Alanis Morissette, Kate Moss, and Ally McBeal. Argue that, in each case, the appropriation of third-wave feminist tenets is accomplished via a postmodern aesthetic code of juxtaposition that serves to recontextualize and reinscribe those sensibilities in a way that ultimately functions to reify dominant…

Shugart, Helene A.; Waggoner, Catherine Egley; Hallstein, D. Lynn O'Brien

2001-01-01

289

Further Studies of the Parameterization of the Influence of Cumulus Convection on Large-Scale Flow.  

National Technical Information Service (NTIS)

The parameterization scheme devised by the author in an earlier study (Kuo, 1965) is re-derived on a rigorous basis and extended so as to include the sensible heat transfer. It is shown that both the amount and the vertical distribution of the latent heat...

H. L. Kuo

1973-01-01

290

Electromagnetic Design and Realization of Innovative Fiber-Reinforced Broad-Band Absorbing Screens  

Microsoft Academic Search

This paper presents the design and the realization process for radar absorbing panels made of composite materials. It is demonstrated that the proper selection of the carbon fiber length and volume fraction allows reducing sensibly the overall thickness of the screen compared to a standard absorber, and obtaining at the same time broad-band absorption response in the X- and Ku-bands.

Igor Maria De Rosa; Riccardo Mancinelli; Fabrizio Sarasini; Maria Sabrina Sarto; Alessio Tamburrano

2009-01-01

291

Fatty Acids as Phase Change Materials (PCMs) for Thermal Energy Storage: A Review  

Microsoft Academic Search

Thermal energy storage (TES) technologies in general and phase change materials (PCMs) in particular, have been topic in research for the last 20 years. Traditionally, available heat has been stored in the form of sensible heat (typically by raising temperature of water, rocks, etc). Latent heat storage on the other hand, is a novel and developing technology, which has found

D. Rozanna; T. G. Chuah; A. Salmiah; Thomas S. Y. Choong; M. Saari

2005-01-01

292

The Effects of Dust Emissions on the Summertime Climate of Southwest Asia: Incorporating Sub-grid Variability in a Regional Climate Model's Dust Scheme  

Microsoft Academic Search

Improvements are made to the dust scheme in a regional climate model by representing sub-grid variability of wind speeds and surface roughness lengths. The new module quantifies wind variability by using model meteorology, assuming wind speeds follow a Gaussian distribution. More specifically, wind variability is approximated by dry convective eddies within the boundary layer, forced by surface sensible heat fluxes.

M. P. Marcella; E. A. Eltahir

2009-01-01

293

Valor preditivo da dor à compressão do globo ocular nas síndromes meníngeas  

Microsoft Academic Search

Meningeal syndromes are evaluated in clinical practice by classic semiological signs all of them showing important sensibility and specificity but with some limitations. Thus, we propose a clinical method in order to diagnose meningeal syndromes capable of being easily executed and without risks for patients: to evaluate the pain by ocular globe compression as a semiological sign in meningeal syndromes.

Luciano Holanda; Gabrielle Nascimento de Holanda; José Tavares-Neto

2002-01-01

294

Emotion and Creativity  

ERIC Educational Resources Information Center

Creativity is seen as a complex process of information processing within a defined cognitive realm, of "conceptual space," which defines the possibilities in terms of sensible judgments. Creative acts consist of novel reorganizations and combinations of information and challenge the boundaries of sense as defined by the space. Creativity is a…

Radford, Mike

2004-01-01

295

Air-sea fluxes over the global oceans during the FGGE year  

Microsoft Academic Search

Vertical fluxes of momentum, sensible and latent heat have been estimated over the surface of the global oceans. A three-dimensional mesh grid 32 longitude points, 17 latitude points and 365 days from December 1, 1978 to November 30, 1979 is used to obtain seasonal and annual mean values of the surface fluxes. The global climatology shows the seasonal variation, the

S. Reyes; O. E. Ramírez

1987-01-01

296

Tunable oscillating CMOS pixel for subretinal implants  

Microsoft Academic Search

Partial visual capabilities for some kind of blindness are still possible through direct electrical stimulation of retinal tissue. In this work, tunable implantable silicon CMOS pixel are presented and experimentally validated. Pulse width, stimulating output current and light sensibility may be regulated by external voltages, making this solution suitable for an auto-adapting artificial retina. Power consumption due to light detection

M. Mazza; P. Renaud; A. M. Ionescu; D. Bertrand

2005-01-01

297

Application of artificial neural networks to the design and implementation of electronic olfactory systems  

Microsoft Academic Search

Recent developments in electronic olfactory systems have broaden their range of applications to many industrial fields, such as the chemical, food and cosmetic industries. Mimicking the human olfactory systems, where neural processing enhances the sensibility and selectivity of the chemosensory receptor cells, the new generation of Electronic Noses combine arrays of chemical sensors with powerful artificial neural network processing algorithms.

J. Brezmes; N. Canyellas; E. Llobet; X. Vilanova; X. Correig

298

Application of artificial neural networks to the design and implementation of electronic olfactory systems  

Microsoft Academic Search

Developments in electronic olfactory systems have broadened their range of applications to many industrial fields, such as the chemical, food and cosmetic industries. Mimicking the human olfactory systems, where neural processing enhances the sensibility and selectivity of the chemosensory receptor cells, the new generation of “electronic noses” combine arrays of chemical sensors with powerful artificial neural network processing algorithms. The

J. Brezmes; N. Canyellas; E. Llobet; X. Vilanova; X. Correig

2000-01-01

299

Boundary Layer Clouds and Vegetation–Atmosphere Feedbacks  

Microsoft Academic Search

An analysis of boundary layer cumulus clouds and their impact on land surface-atmosphere exchange is presented. Seasonal trends indicate that in response to increasing insolation and sensible heat flux, both the mixed-layer height (zi) and the lifting condensation level (LCL) peak (;1250 and 1700 m) just before the growing season commences. With the commencement of transpiration, the Bowen ratio falls

Jeffrey M. Freedman; David R. Fitzjarrald; Kathleen E. Moore; Ricardo K. Sakai

2001-01-01

300

Regional CO2 and latent heat surface fluxes in the Southern Great Plains: Measurements, modeling, and scaling  

Microsoft Academic Search

Characterizing net ecosystem exchanges (NEE) of CO2 and sensible and latent heat fluxes in heterogeneous landscapes is difficult, yet critical given expected changes in climate and land use. We report here a measurement and modeling study designed to improve our understanding of surface to atmosphere gas exchanges under very heterogeneous land cover in the mostly agricultural U.S. Southern Great Plains

W. J. Riley; S. C. Biraud; M. S. Torn; M. L. Fischer; D. P. Billesbach; J. A. Berry

2009-01-01

301

Characteristics of energy and water budgets over wet sedge and tussock tundra ecosystems at North Slope in Alaska  

Microsoft Academic Search

Energy budgets were measured at Arctic tundra ecosystems in Alaska, USA. Measurements were carried out over coastal tundra at Prudhoe Bay in 1994, and at wet sedge, moist and dry tussock tundra around Happy Valley in 1995. Sensible heat flux, H, and latent heat flux, lE, were determined by an eddy correlation technique.Over the Arctic coastal tundra, the energy partition

Yoshinobu Harazono; Mayumi Yoshimoto; Masayoshi Mano; George L. Vourlitis; Walter C. Oechel

1998-01-01

302

Post-colonial perils: art and national impossibilities  

Microsoft Academic Search

The paper reflects on the tension that the process of sensing a nation brings to the formation of a post-colony in Southeast Asia. The “aesthetic” in this context creates forms of sensibility of the “national,” rendering it present in the world and endowing it with certain identity-effects. On the other hand, it also posits an exceptional singularity, at once discriminating

Patrick D. Flores

2011-01-01

303

Face Authentication Using One-Class Support Vector Machines  

Microsoft Academic Search

This paper proposes a new method for personal identity ver- ification based the analysis of face images applying One Class Support Vector Machines. This is a recently introduced kernel method to build a unary classifier to be trained by using only positive examples, avoiding the sensible choice of the impostor set typical of standard binary Sup- port Vector Machines. The

Manuele Bicego; Enrico Grosso; Massimo Tistarelli

2005-01-01

304

Bending relaxation properties of human hair and permanent waving performance  

Microsoft Academic Search

between the change of the bending stiffness and that of the extensional stress during reduction suggests that a non-uniform Young's modulus distribution is induced in the fiber during the reducing step. The evalua- tion of two simple types of distributions (linear and quadratic) leads to results that are consistent with the experimental data, giving sensible estimates for the local moduli

F.-J. WORTMANN; I Aachen; N. KURE; Bunka Sumida-ku

305

A novel underground solar thermal heat storage unit cum heat exchanger for non air-conditioned buildings  

Microsoft Academic Search

A novel passive space conditioning configuration is presented, integrating a Solar Collector System, Underground Storage Tank and Novel Heat Exchanger. This Underground Solar Thermal Heat Exchanger (USTHE) provided improved sensible heating\\/cooling of air by employing a Novel Heat Exchanger (NHX). The dynamic performance of the storage tank in USTHE is modelled using the finite difference method accounting thermal stratification of

Rakesh Kumar; S. C. Kaushik

2003-01-01

306

The Crystal Lake Curriculum Needs Hierarchy  

ERIC Educational Resources Information Center

In Crystal Lake, Illinois, the Office of Curriculum and the teachers comprising the Curriculum Council of the district struggled for three years with the development of a sensible format for categorizing the importance of the many parts of the school's total instructional program. A working model was developed and is described here as the Crystal…

Lapp, Charles E.

1978-01-01

307

Review on sustainable thermal energy storage technologies, Part I: heat storage materials and techniques  

Microsoft Academic Search

This paper reviews the development of available thermal energy storage (TES) technologies and their individual pros and cons for space and water heating applications. Traditionally, available heat has been stored in the form of sensible heat (typically by raising the temperature of water, rocks, etc.) for later use. In most of the low temperature applications, water is being used as

S. M. Hasnain

1998-01-01

308

The climatic impacts of land surface change and carbon management, and the implications for climate-change mitigation policy  

Microsoft Academic Search

Strategies to mitigate anthropogenic climate change recognize that carbon sequestration in the terrestrial biosphere can reduce the build-up of carbon dioxide in the Earth's atmosphere. However, climate mitigation policies do not generally incorporate the effects of these changes in the land surface on the surface albedo, the fluxes of sensible and latent heat to the atmosphere, and the distribution of

Gregg Marland; Roger A. Pielke Sr; Mike Apps; Roni Avissar; Richard A. Betts; Kenneth J. Davis; Peter C. Frumhoff; Stephen T. Jackson; Linda A. Joyce; Pekka Kauppi; John Katzenberger; Kenneth G. MacDicken; Ronald P. Neilson; John O. Niles; Dev dutta S. Niyogi; Richard J. Norby; Naomi Pena; Neil Sampson; Yongkang Xue

2003-01-01

309

Global Atmospheric Heat Distributions Observed from Space  

NASA Technical Reports Server (NTRS)

This study focuses on the observations of global atmospheric heat distributions using satellite measurements. Major heat components such as radiation energy, latent heat and sensible heat are considered. The uncertainties and error sources are assessed. Results show that the atmospheric heat is basically balanced, and the observed patterns of radiation and latent heat from precipitation are clearly related to general circulation.

Lin, Bing; Fan, Tai-Fang

2009-01-01

310

An Evaluation of the Scale at which Ground-Surface Heat Flux Patchiness Affects the Convective Boundary Layer Using Large-Eddy Simulations  

Microsoft Academic Search

The effects on the convective boundary layer (CBL) of surface heterogeneities produced by surface sensible heat flux waves with different means, amplitudes, and wavelengths were investigated here. The major objective of this study was to evaluate at which scale surface heterogeneity starts to significantly affect the heat fluxes in the CBL. The large-eddy simulation option of the Regional Atmospheric Modeling

Roni Avissar; Tatyana Schmidt

1998-01-01

311

Managing Method: A Critical Inquiry into Language Policy in a Tertiary Institution in the United Arab Emirates  

ERIC Educational Resources Information Center

The development of critical sensibilities in English Language Teaching (ELT) in recent years has seen challenges to assumptions and methodologies in the field, placing an explicit focus on the manifestation of structures and relations of power. The critical stance affords a growing acceptance of English Language Teaching as a complex situated…

Hunt, Neil D.

2012-01-01

312

Carbon and water fluxes over a temperate Eucalyptus forest and a tropical wet\\/dry savanna in Australia: measurements and comparison with MODIS remote sensing estimates  

Microsoft Academic Search

Measurements over a period of 33 months are presented for the fluxes of carbon, sensible heat and water vapour over a tropical wet\\/dry savanna in northern Queensland (Virginia Park), and for 38 months over a cool temperate Eucalyptus forest in southeast Australia (Tumbarumba), as part of the OzFlux network. Fluxes were measured using micrometeorological methods and neural network analysis was

Ray Leuning; Helen A. Cleugh; Steven J. Zegelin; Dale Hughes

2005-01-01

313

Effect of LRB isolators and supplemental viscous dampers on seismic isolated buildings under near-fault excitations  

Microsoft Academic Search

Base isolation is a quite sensible structural control strategic design in reducing the response of a structural system induced by strong ground motions. It is clear that the effects of near-fault (NF) ground motions with large velocity pulses can bring the seismic isolation devices to critical working conditions. In the present paper, nonlinear time history analyses were performed using a

C. P. Providakis

2008-01-01

314

Effectively Utilizing the "Behavioral" in Cognitive-Behavioral Group Therapy of Sex Offenders  

ERIC Educational Resources Information Center

Although cognitive-behavioral therapy (CBT) is touted as the predominant approach in sex offender-specific group treatment, a review of the field shows that the "behavioral" part of CBT has become minimal in relation to that which is cognitive. The authors show how a revitalized "behavioral sensibility" may help to enhance…

Jennings, Jerry L.; Deming, Adam

2013-01-01

315

Heat transfer enhancement in water when used as PCM in thermal energy storage  

Microsoft Academic Search

Efficient and reliable storage systems for thermal energy are an important requirement in many applications where heat demand and supply or availability do not coincide. Heat and cold stores can basically be divided in two groups. In sensible heat stores the temperature of the storage material is increased significantly. Latent heat stores, on the contrary, use a storage material that

L. F. Cabeza; H. Mehling; S. Hiebler; F. Ziegler

2002-01-01

316

Don't Make Me Laugh: People Are Funny in "Wall-E" and "Tropic Thunder"  

ERIC Educational Resources Information Center

The current difficulties of making challenging humor while respecting the legitimate sensibilities of stigmatized people are discussed. Two very different movie comedies include jokes about people. One is received with outrage on behalf of the group that is made the butt of the jokes, people who are "mentally challenged"; the other, about…

Beck, Bernard

2009-01-01

317

Critical Thinking and the End(s) of Psychology  

Microsoft Academic Search

Critical thinking always involves logical and metacognitive skills. However, different modes of thinking critically with regard to psychology evince diverse sensibilities, that is, different ways of envisioning what might be wrong with a project or approach and how it could be improved. Fostering critical thinking thus is about developing distinctive modes of responsiveness and discernment, of which there can be

Suzanne R. Kirschner

2011-01-01

318

A simple hydrologically based model of land surface water and energy fluxes for general circulation models  

Microsoft Academic Search

A generalization of the single soil layer variable infiltration capacity (VIC) land surface hydrological model previously implemented in the Geophysical Fluid Dynamics Laboratory (GFDL) general circulation model (GCM) is described. The new model is comprised of a two-layer characterization of the soil column, and uses an aerodynamic representation of the latent and sensible heat fluxes at the land surface. The

Xu Liang; Dennis P. Lettenmaier; S. J. Burges

1994-01-01

319

Role of Air-Breathing Pulse Detonation Engines in High Speed Propulsion  

NASA Technical Reports Server (NTRS)

In this paper, the effect of flight Mach number on the relative performance of pulse detonation engines and gas turbine engines is investigated. The effect of ram and mechanical compression on combustion inlet temperature and the subsequent sensible heat release is determined. Comparison of specific thrust, fuel consumption and impulse for the two engines show the relative benefits over the Mach number range.

Povinelli, Louis A.; Lee, Jin-Ho; Anderberg, Michael O.

2001-01-01

320

Topics in SCHISMA dialogues  

Microsoft Academic Search

An important part of dialogue management in a dialogue system is topic management. The system has to keep track of topic aspects (current topic, context, obligations, ...) in order to be able to resolve ambiguities and to respond in a cooperative and sensible way. In the Schisma project, we are developing a system that takes part in a conversation about

Joris Hulstijn; Ren'e Steetskamp; Doest ter Hugo; Burgt van de Stan; Anton Nijholt; Susann LuperFoy; Gert Veldhuijzen van Zanten

1996-01-01

321

Mean fluid temperatures in direct contact heat exchangers without phase change  

Microsoft Academic Search

This paper deals with the distribution of fluid temperatures in a direct contact heat exchanger. The exchanger is considered as a column with two immiscible fluids in countercurrent flow. None of the fluids undergoes a phase change so that only sensible heat is transferred. Equations for the mean temperatures of the fluids are derived analytically by integration of the one-dimensional

J. Mitrovic; K. Stephan

1996-01-01

322

Soil evaporation from sparse natural vegetation estimated from Sherwood numbers  

Microsoft Academic Search

For various purposes and applications it is convenient to have a simple technique available that produces reliable estimates about the contribution of the soil sensible and latent heat of a crop canopy or natural vegetation to the total fluxes. This is especially of importance in the case of a sparse vegetation where the bare soil is the major component.Under low

Adrie F. G. Jacobs; Anne Verhoef

1997-01-01

323

GIS DESIGN AND APPLICATION FOR TOURISM  

Microsoft Academic Search

Nowadays, time is considered as valuable as gold. Once time is used sensibly, access to a lot of information is possible. People who want to go sightseeing in different places as tourists may need to have some information about those places. Determining the shortest routes to the historical places and natural beauties from their accommodation will be both timesaving and

T. Turk; M. U. Gumusay

324

When Food Is a Foe.  

ERIC Educational Resources Information Center

Although only 5% of the population has severe food allergies, school business officials must be prepared for the worst-case scenario. Banning foods and segregating allergic children are harmful practices. Education and sensible behavior are the best medicine when food allergies and intolerances are involved. Resources are listed. (MLH)

Fitzgerald, Patricia L.

1998-01-01

325

Influence of Model Physics on NWP Forecasts  

NSDL National Science Digital Library

This module describes model parameterizations of sub-surface, boundary-layer,and free atmospheric processes, such as surface snow processes, soil characteristics, vegetation, evapotranspiration, PBL processes and parameterizations, and trace gases, and their interaction with the radiative transfer process. It specifically addresses how models treat these physical processes and how they can influence forecasts of sensible weather elements.

Spangler, Tim

1999-11-24

326

[Spontaneous cerebellar hematoma with a favorable course].  

PubMed

Echo-eg, EEG, dopplerography and computer-aided tomography of the brain were employed to examine 8 patients with spontaneous cerebellar hematomas. Clinically, minor intracerebellar hematomas are characterized by acutely occurring intensive systemic dizziness, nausea, moderate coordination disorders without consciousness derangement or pyramidal and sensible disturbances. It is demonstrated that cerebellar hemorrhages may run a favourable course without any surgical treatment. PMID:1647098

Mironov, N V; Arkhipov, S L; Gavrilov, E S; Iakhno, N N

1991-01-01

327

Sun: Friend and Foe.  

ERIC Educational Resources Information Center

Reviews the benefits and hazards that the sun provides. Describes activities which focus on the power of the sun and on the development of "Sun-sensible" behavior. Also included is a poster which contains puzzles and additional information and activities on safe sunning. (ML)

Froschauer, Linda K.; Boudrot, Barbara

1986-01-01

328

Bringing Vision to Practice: Planning and Provisioning the New Library Resource Center  

ERIC Educational Resources Information Center

The most critical factor in creating a successful school library is the development of a clear vision of the mission and functionality of this integral learning space. However, the process of bringing a vision to realization involves harsh realities and sensible planning. The budget will determine many purchasing decisions and therefore it is…

Wilson, Lisa

2004-01-01

329

Correcting eddy-covariance flux underestimates over a grassland  

Microsoft Academic Search

Independent measurements of the major energy balance flux components are not often consistent with the principle of conservation of energy. This is referred to as a lack of closure of the surface energy balance. Most results in the literature have shown the sum of sensible and latent heat fluxes measured by eddy covariance to be less than the difference between

T. E. Twine; W. P. Kustas; J. M. Norman; D. R. Cook; P. R. Houser; T. P. Meyers; J. H. Prueger; P. J. Starks; M. L. Wesely

2000-01-01

330

Wet periods in northeastern Brazil over the past 210kyr linked to distant climate anomalies  

Microsoft Academic Search

The tropics are the main source of the atmosphere's sensible and latent heat, and water vapour, and are therefore important for reconstructions of past climate. But long, accurately dated records of southern tropical palaeoclimate, which would allow the establishment of climatic connections to distant regions, have not been available. Here we present a 210,000-year (210-kyr) record of wet periods in

Xianfeng Wang; Augusto S. Auler; R. Lawrence Edwards; Hai Cheng; Patricia S. Cristalli; Peter L. Smart; David A. Richards; Chuan-Chou Shen

2004-01-01

331

SEASONAL CO2 FLUXES AND ENERGY BALANCE IN A KIWIFRUIT ORCHARD FLUSSI DI CO2 E BILANCIO ENERGETICO STAGIONALE IN UN IMPIANTO DI ACTINIDIA  

Microsoft Academic Search

This study reports the seasonal assessment of energy balance components and carbon dioxides fluxes over a drip irrigated kiwifruit orchard, with a Leaf Area Index (LAI) of 3 at full canopy development. The most remarkable amount of energy partitioning throughout the whole season was due to latent heat flux that had values approximating to those of sensible heat flux (about

Federica Rossi; Osvaldo Facini; Teodoro Georgiadis; Marianna Nardino

332

Carbon dioxide and energy flux partitioning between the understorey and the overstorey of a maritime pine forest during a year with reduced soil water availability  

Microsoft Academic Search

Carbon dioxide, water vapour and energy fluxes were measured above and within a maritime pine forest during an atypical year with long-lasting reduced soil water availability. Energy balance closure was adequately good at both levels. As compared with what is usually observed at this site the ecosystem dissipated less energy via latent heat flux and more via sensible heat flux.

Nathalie Jarosz; Yves Brunet; Eric Lamaud; Mark Irvine; Jean-Marc Bonnefond; Denis Loustau

2008-01-01

333

Seasonal patterns of carbon dioxide, water vapour and energy fluxes in pineapple  

Microsoft Academic Search

For five consecutive seasons (i.e., 840 days), fluxes of latent (?E) and sensible heat (H) and carbon dioxide (i.e., net ecosystem flux, NEF) were measured by eddy covariance over a fertilized pineapple [Ananas comosus (L.) Merr. cv. Red Spanish] field in the Orinoco lowlands. The large flat and windy experimental site seemed ideal for eddy covariance. For the total number

Ruben Montes; Nina Nikonova

2007-01-01

334

A pasture simulation model for dry matter production, and fluxes of carbon, nitrogen, water and energy  

Microsoft Academic Search

A mechanistically based ecosystem model for managed productive pastures was developed to simulate the annual production of plant biomass and the nitrogen balance, and seasonal patterns of growth, and of fluxes of latent, sensible and soil heat. The model is composed of submodels for plant growth, microclimate, soil biology, and soil physics. At a time step of one hour, above-

Marcel Riedo; Anton Grub; Marc Rosset; Jürg Fuhrer

1998-01-01

335

Energy and water dynamics of a central Amazonian rain forest  

Microsoft Academic Search

This paper presents measurements of the energy and water budgets of a tropical rain forest near Manaus, Brazil, in central Amazonia, collected between September 1995 and August 1996. Fluxes of sensible and latent heat were measured using a three-dimensional eddy covariance system mounted above the forest canopy. Using a new approach to analysis of eddy covariance data, we found that

Y. Malhi; E. Pegoraro; A. D. Nobre; M. G. P. Pereira; J. Grace; A. D. Culf; R. Clement

2002-01-01

336

The role of low soil moisture in mitigation of Water and Carbon exchange at a Bahia Grass (Paspalum notatum) Pasture in Central Florida  

Microsoft Academic Search

Measurements of latent (LE) and sensible (H) heat fluxes (June 2000-February 2004) and carbon exchange (February 2003-February 2004) were made to determine the role soil water content (SWC) plays in water and carbon exchange over a pasture in central Florida. Maximum evapotranspiration rates (ET) were > 5 mm day-1 and occurred during the wet season (June to September) of each

R. G. Bracho; D. M. Sumner; T. L. Powell; C. R. Hinkle; B. G. Drake

2004-01-01

337

Utilization of phase change materials in solar domestic hot water systems  

Microsoft Academic Search

Thermal energy storage systems which keep warm and cold water separated by means of gravitational stratification have been found to be attractive in low and medium temperature thermal storage applications due to their simplicity and low cost. This effect is known as thermal stratification, and has been studied experimentally thoughtfully. This system stores sensible heat in water for short term

Muhsin Mazman; Luisa F. Cabeza; Harald Mehling; Miquel Nogues; Hunay Evliya; Halime Ö. Paksoy

2009-01-01

338

The research of contaminant abrasion on external gear pump  

Microsoft Academic Search

Leakage brings out contamination inevitably and contaminant abrasion leads to the increase of internal leakage, the decline of volumetric efficiency, and the service life. The influential factors were found by experiment in the paper. On the basis of the experiment of gear pump contaminant abrasion sensibility, we discuss the interaction between leakage and contamination, provide reference for decreasing the leakage

Baode Jing; Lijuan Yang; Shuang Lu

2009-01-01

339

McLuhan's World--and Ours.  

ERIC Educational Resources Information Center

Examines various dubious and accurate theories of Marshall McLuhan, a commentator in the movement to modify consciousness and organize new modes of sensibility in the 1950s-60s. Describes his four main ideas (ratio of senses, the medium is the message, global village, and media as extensions of man), noting how they apply to historically…

Skinner, David

2000-01-01

340

Diagnostic performance of the Forced Oscillation Technique in the detection of early respiratory changes in Rheumatoid Arthritis  

Microsoft Academic Search

The objective of this study was to evaluate the clinical potential of the Forced Oscillation Technique (FOT) in the detection of the early alterations in respiratory mechanics of Rheumatoid Arthritis (RA) patients. A total of 36 individuals were analyzed, 18 healthy and 18 with RA. The clinical usefulness of the parameters was evaluated investigating sensibility (Se), specificity (Sp) and the

A. C. D. Faria; A. J. Lopes; J. M. Jansen; G. R. C. Pinheiro; P. L. Melo

2010-01-01

341

Comparison of annual energy performances with different ventilation methods for temperature and humidity control  

Microsoft Academic Search

Stratum ventilation has been proposed to accommodate elevated indoor temperatures recommended by governments in East Asia. TRNSYS is used for computation of the space cooling loads, sensible and latent, as well as system energy consumption. Typical configurations of an office, a classroom and a retail shop in Hong Kong are investigated. Desiccant dehumidification with and without solar assistance is utilized

Zhang Lin; C. K. Lee; K. F. Fong; T. T. Chow

2011-01-01

342

Experimental study on a residential temperature–humidity separate control air-conditioner  

Microsoft Academic Search

According to the temperature and moisture characteristics and current problems experienced in the Yangtze River Area, a temperature–humidity separate control air conditioner was developed. This unit can remove indoor sensible heat and latent heat load separately, and adjust indoor temperature and humidity respectively, thus improve indoor comfort and reduce energy consumption. The air-conditioner consists of an air cooling evaporator and

Xing Han; Xu Zhang

2011-01-01

343

Conceptualizing Learning from the Everyday Activities of Digital Kids  

ERIC Educational Resources Information Center

This paper illustrates the intensified engagement that youth are having with digital technologies and introduces a framework for examining "digital fluency"--the competencies, new representational practises, design sensibilities, ownership, and strategic expertise that a learner gains or demonstrates by using digital tools to gather, design,…

Hsi, Sherry

2007-01-01

344

Graphical Method for Assessing the Results of Fuzzy Clustering.  

National Technical Information Service (NTIS)

In one sense, statistics is practice of summarizing data by reducing the dimensionality of a data set in a sensible way. One way in which the dimensionality of a data set can be reduced is to classify the n items in a dataset into k clusters. One such met...

P. Bobbitt

2003-01-01

345

Observed effects of horizontal radiative surface temperature variations on the atmosphere over a midwest watershed during CASES 97  

Microsoft Academic Search

The association between ?10-km scale horizontal variation of radiometric surface temperature (Ts) and aircraft-derived fluxes of sensible heat (H) and moisture (LE) is the focus of this work. We use aircraft, surface, and satellite data from a Cooperative Atmospheric-Surface Exchange Studies (CASES) field program, which took place in the southern part of the 60 × 100 km Walnut River (Kansas)

Robert L. Grossman; David Yates; Margaret A. LeMone; M. L. Wesely; Jie Song

2005-01-01

346

Water and energy budget monitoring over an agricultural landscape from optical scintillometer and TIR remote sensing data using a SVAT model  

Microsoft Academic Search

The purpose of this paper is to present an application combining remote sensing and modeling approaches for water and energy surface exchanges monitoring at high resolution over an agricultural landscape. This study takes advantage of using high spatial resolution data in the visible and thermal infrared (TIR) domains and at-ground eXtra Large Aperture Scintillometer (XLAS) sensible heat flux measurements. Actually,

Benoit Coudert; P.-A. Solignac; A. Brut; V. Rivalland; P. Keravec; O. Hagolle; V. Demarez

2010-01-01

347

A Novel Method for the Distortion Modification of Camera Lens  

Microsoft Academic Search

Lens distortion is one of the main factors affecting camera calibration. To improve the accuracy of calibrating camera, a new approach to modify the lens distortion is proposed. Based on Brown model and pinhole imaging principle, the measurement model of the incident angle is built. The sensibilities of different distortion coefficients in the expression of incident angle are analyzed using

Minghua Pan; Guoli Zhu

2010-01-01

348

Storage tanks interconnection and operation modes in large DHW solar systems  

Microsoft Academic Search

Storing thermal energy in large DHW solar systems as sensible heat may require more than one storage tank. The effects of the interconnection of such tanks, in conjunction with the operation modes employed, on the thermal performance of the overall system have been investigated. Revealing results have been derived by using a mathematical model (PROTANK-3) to consider a number of

D. E. Prapas; S. G. Tsiamouris; V. D. Giannaros; B. A. Sotiropoulos

1993-01-01

349

Albedo effect on radiative errors in air temperature measurements  

Microsoft Academic Search

Air temperature measurements are necessary for numerous purposes and applications in environmental and climate research such as time series analyses, model forcing or validation, and the computation of dependent quantities, for instance, the sensible heat flux. Often the considered physical processes, parameterizations, or the scaling involving air temperature are non-linear in nature. The presence of solar radiation and the lack

Hendrik Huwald; C. W. Higgins; M. O. Boldi; Elie Bou-Zeid; Michael Lehning; M. B. Parlange

2009-01-01

350

Remarkable-Tracking, Experiential Education of the Ecological Imagination  

ERIC Educational Resources Information Center

Imagination might be understood as letting our senses, perceptions and sensibilities run free for no apparent reason. Here, for this special edition what might be "remarkable" is the "opening" of our imagination provided orally through storytelling. This opening involves the "placing" of our own and our listeners' embodied selves in the…

Payne, Phillip G.

2010-01-01

351

Relationships among canopy scale energy fluxes and isoprene flux derived from long-term, seasonal eddy covariance measurements over a hardwood forest  

Microsoft Academic Search

The flux of isoprene, one of the more reactive biogenic volatile organic compounds, was measured using eddy covariance techniques on a continuous basis during the 2000–2002 growing seasons at a mixed hardwood forest in northern lower MI. Daytime fluxes of isoprene and both sensible (H) and latent heat flux (LE) were linearly correlated with a positive slope on a daily

Shelley Pressley; Brian Lamb; Hal Westberg; Christoph Vogel

2006-01-01

352

Children's Judgements of Correct and Reversed Sentences with 'It'.  

ERIC Educational Resources Information Center

In an experiment investigating aspects of children's comprehension of sentences containing the connective "if," young children judged correct and reversed "Y if X" and "If X, Y" sentences as "sensible" or "silly." The comprehension of the role of "if" in sentences appears to be a late-developing ability, occurring inconsistently prior to age 7 or…

Emerson, Harriet F.

1980-01-01

353

The Combined Effect of Temperature and Humidity Fluctuations on Refractive Index  

Microsoft Academic Search

Depending on whether the radiation under consideration is acoustic, visible or microwave, either temperature or humidity fluctuations are ordinarily assumed to be an insignificant source of refractive index fluctuations. For applications in the atmospheric surface layer or in a free convection layer, the value of the local Bowen ratio , which is the ratio of sensible to latent heat flux

Marvin L. Wesely

1976-01-01

354

A self-synchronizing instrument for harmonic source detection in power systems  

Microsoft Academic Search

The deregulation of energy markets holds out new prospects for contracts between customers and utilities, in which the price of energy can depend on voltage quality and load characteristics, as well as on the responsibility for disturbances caused to supply voltage in power systems. In this context, harmonic source detection is one of the main problems because of equipment sensibility

Massimo Aiello; Antonio Cataliotti; Valentina Cosentino; Salvatore Nuccio

2005-01-01

355

Integration of -omics data and networks for biomedical research with VANTED  

Microsoft Academic Search

Increasingly, research focus in the fields of biology and medicine moves from the investi- gation of single phenomena to the analysis of complex cause and effect relationships. The clarification of complicated relationships requires the consideration of different domains, such as gene expression, protein, and metabolite data. Furthermore, it is often sensible not to analyze the collected data in isolation, but

Christian Klukas; Falk Schreiber

2010-01-01

356

Glimpses of Japan through Comics.  

ERIC Educational Resources Information Center

Through Japanses comic strips (called "manga" in Japanese) students can gain an appreciation not only for the different sensibilities of the Japanese but for similarities as well. One unit consists of an essay, a comic strip, frame by frame explanations, and questions for discussion. In total, there are nine units because odd numbers are…

Allen, Caron

357

A highly accurate and computationally efficient approach for unconstrained iris segmentation  

Microsoft Academic Search

Biometric research has experienced significant advances in recent years given the need for more stringent security requirements. More important is the need to overcome the rigid constraints necessitated by the practical implementation of sensible but effective security methods such as iris recognition. An inventive iris acquisition method with less constrained image taking conditions can impose minimal to no constraints on

Yu Chen; Malek Adjouadi; Changan Han; Jin Wang; Armando Barreto; Naphtali Rishe; Jean Andrian

2010-01-01

358

Hierarchical modeling of spatio-temporally misaligned data: relating traffic density to pediatric asthma hospitalizations  

Microsoft Academic Search

this paper we extend this hierarchical modeling approachto the spatio-temporal case, so that misalignment can arise either within a given timepoint,or across timepoints (as when the regional boundaries themselves evolve over time). Implementedusing Markov chain Monte Carlo computing methods, our approach sensibly combines the relevantdata sources and imposes the necessary constraints over the misaligned regional grids. Weillustrate the method through

Li Zhu; Bradley P. Carlin; Paul English; Russell Scalf

2000-01-01

359

A new inverter heat pump operated all year round with domestic hot water  

Microsoft Academic Search

This paper presents a new scheme of an inverter air cooling heat pump system with domestic hot water. A water reheater is placed between the compressor outlet and the four way valve inlet to utilize the sensible heat of the superheated gas exhausted from the compressor, and a water preheater is placed between the condenser and the throttling device to

Shuangquan Shao; Wenxing Shi; Xianting Li; Jie Ma

2004-01-01

360

Professionalism in Educational Administration.  

ERIC Educational Resources Information Center

That the quest for a general theory of educational administration has been a misdirection of effort and that the advancement of professionalism within this field would represent a more sensible endeavor for the production of useful knowledge is the focus of this essay. The advancement of professionalism would entail a reorientation of research…

Silver, Paula F.

361

FTIR investigation of organic discharge in polluted water: I. Renex monitoring study  

Microsoft Academic Search

Aliquots of waste water from power stations were analyzed by a special procedure in order to put in evidence the presence of renex, a nonionic detergent. The investigations were performed spectroscopically by FTIR technique. Qualitative and quantitative features of the procedure were established as specific peaks, detection limit and method sensibility. The validity of Lambert-Beer law was checked. Taking into

A. Jelev; M. F. Ciobanu; L. Frunza

1997-01-01

362

Enthalpy-based automatic temperature control for automobiles  

Microsoft Academic Search

This paper studies the temperature control for an automobile air-conditioning (AC) system, especially the control of air flow rate in the circulation. Based on energy balance and mass conservation laws, the control strategy is proposed by analyzing the heat exchange between heat gains form outdoor environment and the AC equipment. To be more precise, sensible heat exchange characterized by room

Chung-Lun Li; Shung-Luen Chung

2009-01-01

363

Training Ircam's score follower [audio to musical score alignment system  

Microsoft Academic Search

This paper describes our attempt to make the hidden Markov model (HMM) score following system, developed at Ircam, sensible to past experiences in order to obtain better audio to score real-time alignment for musical applications. A new observation modeling based on Gaussian mixture models is developed which is trainable using a learning algorithm we would call automatic discriminative training. The

Arshia Cont; Diemo Schwarz; Norbert Schnell

2005-01-01

364

FROM BOULEZ TO BALLADS: TRAINING IRCAM'S SCORE FOLLOWER  

Microsoft Academic Search

This paper describes our attempt to make the Hidden Markov Model (HMM) score following system developed at Ircam sensible to past experiences in order to obtain better audio to score real-time alignment for musical ap- plications. A new observation modeling based on Gaus- sian Mixture Models is developed which is trainable us- ing a learning algorithm we call automatic discrimina-

Diemo Schwarz; Arshia Cont; Norbert Schnell

2005-01-01

365

Sensitivity of the thermohaline circulation in coupled oceanic GCM - atmospheric EBM experiments  

Microsoft Academic Search

We analyze the sensitivity of the oceanic thermohaline circulation (THC) regarding perturba- tions in fresh water flux for a range of coupled oceanic general circulation - atmospheric energy balance mod- els. The energy balance model (EBM) predicts surface air temperature and fresh water flux and contains the feedbacks due to meridional transports of sensible and latent heat. In the coupled

Gerrit Lohmann; Rüdiger Gerdes; Deliang Chen

1996-01-01

366

Sensitivity of the thermohaline circulation in coupled oceanic GCM — atmospheric EBM experiments  

Microsoft Academic Search

We analyze the sensitivity of the oceanic thermohaline circulation (THC) regarding perturbations in fresh water flux for a range of coupled oceanic general circulation — atmospheric energy balance models. The energy balance model (EBM) predicts surface air temperature and fresh water flux and contains the feedbacks due to meridional transports of sensible and latent heat. In the coupled system we

Gerrit Lohmann; Rüdiger Gerdes; Deliang Chen

1996-01-01

367

Communication and Supervision of Alcohol in the Family: Parental Perspectives  

ERIC Educational Resources Information Center

It is now well acknowledged that parents can have a central role in supporting sensible alcohol use and reducing alcohol misuse amongst young people. However, little research has considered how communication and supervision in relation to alcohol actually takes place within the family. Drawing upon interviews with the parents of young people aged…

Sherriff, Nigel; Cox, Louise; Coleman, Lester; Roker, Debi

2008-01-01

368

Dr. Pettigrew Helps Clear the Picture. NCRIEEO Tipsheet, Number 2.  

ERIC Educational Resources Information Center

This issue of the NCRIEEO Tipsheet carries a thumb-nail sketch of Thomas F. Pettigrew's recent report, "A Study of School Integration." The author of this sketch attempts to translate, to explain, some of Pettigrew's findings. It is concluded that "Pettigrew"s 'propositions' may be read as practical, sensible, and reputable guidelines for…

Roye, Wendell J.

369

AN OBJECTIVE CLIMATOLOGY OF CAROLINA COASTAL FRONTS  

EPA Science Inventory

This study describes a simple objective method to identify cases of coastal frontogenesis offshore of the Carolinas and to characterize the sensible weather associated with frontal passage at measurement sites near the coast. The identification method, based on surface hourly d...

370

The presence of octopamine in the brain of Helix aspersa and its action on specific snail neurones  

Microsoft Academic Search

Résumé L'octopamine est présente dans le tissue nerveus l'escargot,Helix aspersa. Elle a un effet fortement inhibitoire sur certains neurones. Ces neurones sont aussi sensibles à la dopamine et à la noradrénaline. Le mécanisme possible de l'action de l'octopamine est discuté.

R. J. Walker; A. G. Ramage; G. N. Woodruff

1972-01-01

371

Impression-Oriented Music Courseware and Its Application in Elementary Schools  

ERIC Educational Resources Information Center

Purpose: The purpose of this paper is to present the design and implementation of music courseware that features a music search system that uses impression keywords. The paper applies the courseware to "Kansei" (sensibility) development for elementary and junior high school students. The objectives of this courseware are to cultivate children's…

Sasaki, Shiori; Watagoshi, Kiku; Takano, Kosuke; Hirashima, Kazuo; Kiyoki, Yasushi

2010-01-01

372

Engineered Robustness by Controlled Hallucination  

Microsoft Academic Search

Most computer programs are brittle. They may have accept- able behavior for the range of applications that they are spec- ified to work for, but they fail miserably for applications even slightly outside of that range. For example, a program may work well when its inputs are complete, but be unable to pro- duce any sensible result if any of

Jacob Beal; Gerald Jay Sussman

373

Social Work Education in Wonderland: Stoesz and Karger Reply  

ERIC Educational Resources Information Center

The authors respond to the invited commentary addressing their paper "Reinventing Social Work Accreditation" published earlier in this issue. Many of the comments provided were sensible and sober appraisals of the critical state of social work education and of the profession, largely congruent with the authors' analysis. They judge the response…

Stoesz, David; Karger, Howard J.

2009-01-01

374

Searching for New Directions for IT Financing.  

ERIC Educational Resources Information Center

Presents highlights from a conference call involving six experts on spending for higher education information technology (IT). Participants discussed solid strategies for smart purchasing, sensible financing, and discipline that allow an institution to focus on its mission in a climate of fads and quick-fix technological temptations. (EV)

Trusteeship, 2001

2001-01-01

375

Simultaneous heat and mass transfer characteristics for wavy fin-and-tube heat exchangers under dehumidifying conditions  

Microsoft Academic Search

The present study proposes a new reduction method to calculate the heat and mass transfer characteristics of the wavy fin-and-tube heat exchangers under dehumidifying conditions. For fully wet conditions, the sensible heat transfer and mass transfer characteristics are relatively insensitive to the inlet relative humidity. The heat and mass transfer performances show appreciable influence of fin spacing at 1-row configuration.

Worachest Pirompugd; Somchai Wongwises; Chi-Chuan Wang

2006-01-01

376

Age differences in visual sensory integration  

Microsoft Academic Search

Numerous authors have reported that elderly persons are more affected than young adults when submitted to reduced or conflicting sensory inputs conditions. These results, however, do not permit to evaluate whether the elderly suffer from a reduced peripheral sensibility or from a deficit in the central integrative mechanisms responsible for configuring the postural set. The present experiment evaluated the ability

N. Teasdale; G. E. Stelmach; A. Breunig; H. J. Meeuwsen

1991-01-01

377

On the cognitive penetrability of posture control  

Microsoft Academic Search

Postural sway increases with age. The decreased stability associated with postural sway often has been related to the reduced peripheral sensibility in the visual, vestibular, and proprioceptive systems. We examined whether the micropostural adjustments necessary for maintaining balance also require some cognitive processing. Young and older subjects were submitted to an auditory reaction time task while maintaining an upright posture

N. Teasdale; C. Bard; J. Larue; M. Fleury

1993-01-01

378

Processing Time Shifts Affects the Execution of Motor Responses  

ERIC Educational Resources Information Center

We explore whether time shifts in text comprehension are represented spatially. Participants read sentences involving past or future events and made sensibility judgment responses in one of two ways: (1) moving toward or away from their body and (2) pressing the toward or away buttons without moving. Previous work suggests that spatial…

Sell, Andrea J.; Kaschak, Michael P.

2011-01-01

379

Conceptualizing Learning from the Everyday Activities of Digital Kids  

Microsoft Academic Search

This paper illustrates the intensified engagement that youth are having with digital technologies and introduces a framework for examining digital fluency—the competencies, new representational practises, design sensibilities, ownership, and strategic expertise that a learner gains or demonstrates by using digital tools to gather, design, evaluate, critique, synthesize, and develop digital media artefacts, communication messages, or other electronic expressions. A primary

Sherry Hsi

2007-01-01

380

Study of the Surface Layer on an Extremely Rough Surface US Estudo DA Camada Limite Superficial Sobre Superficie Extremamente Rugosa.  

National Technical Information Service (NTIS)

Experimental data for the surface layer obtained over a rough surface of a tropical savannah were used to compute the stability functions for momentum (phi sub M) and sensible heat (phi sub H) under unstable conditions. The computed functions are consider...

L. D. A. Sa L. C. B. Molion

1983-01-01

381

Energy and CO2 Balance of an Irrigated Sugar Beet ('Beta vulgaris') Field in the Great Plains.  

National Technical Information Service (NTIS)

The fluxes of latent heat and CO2 above an irrigated sugar beet (Beta vulgaris) field in the North Platte Valley of Nebraska were calculated by means of the energy balance. The advection of sensible heat to the field was large only when strong dry winds p...

K. W. Brown N. J. Rosenberg

1970-01-01

382

Planck's orders of magnitude and the limits of the quantum gravity conception  

NASA Astrophysics Data System (ADS)

In this paper it is shown how the universal constants h, c and G prevent one from deriving measurable quantum GRT effects for energies near the Planck energy. Planck's units thus screen those GRT regions where difficulties for the quantization procedure occur, from a physically sensible quantum-field (or graviton) interpretation.

Vonborzeszkowski, H. H.

1988-02-01

383

Pair creation of black holes during inflation  

Microsoft Academic Search

Black holes came into existence together with the universe through the quantum process of pair creation in the inflationary era. We present the instantons responsible for this process and calculate the pair creation rate from the no boundary proposal for the wave function of the universe. We find that this proposal leads to physically sensible results, which fit in with

Raphael Bousso; Stephen W. Hawking

1996-01-01

384

Primordial Black Holes: Tunnelling vs. No Boundary Proposal  

Microsoft Academic Search

In the inflationary era, black holes came into existence together with the universe through the quantum process of pair creation. We calculate the pair creation rate from the no boundary proposal for the wave function of the universe. Our results are physically sensible and fit in with other descriptions of pair creation. The tunnelling proposal, on the other hand, predicts

Raphael Bousso; Stephen W. Hawking

1996-01-01

385

Geopolitical Fears, Geoeconomic Hopes, and the Responsibilities of Geography  

Microsoft Academic Search

Geographers have a responsibility to examine persistently, collaboratively, and critically the geographical grounds of hope and fear. We can help debunk false hopes and groundless fears, and in so doing we can also advance more sensible hopes based on more embodied and accountable experiences of fear. The case of the Iraq war shows how the groundless geopolitical fears about Iraq's

Matthew Sparke

2007-01-01

386

Books for Early Childhood Educators [Book Reviews].  

ERIC Educational Resources Information Center

Describes Miller's book as a well-organized and clearly written text for beginning students. Notes that a unique feature of the book is its incorporation of case studies to illustrate important concepts such as inclusion, and maintains that the book is a sensible choice for undergraduates in teacher-preparation programs. (KB)

Bromer, Billi L.

1999-01-01

387

Time to End the Bias towards Inclusive Education?  

ERIC Educational Resources Information Center

The UK coalition Government's call to end the "bias" towards inclusion represents a shift in "policy speak" as the new administration attempts to re-narrate special education by putting forward a "reasonable and sensible" solution to the "problem of inclusion". However, implicit in the call is the assumption that there has, in fact, been a "bias…

Runswick-Cole, Katherine

2011-01-01

388

Consumption, Import Prices, and the Demand for Imported Consumer Durables: A Structural Econometric Investigation  

Microsoft Academic Search

This paper derives and estimates a rational expectations optimizing model of the demand for imported consumer durable goods. The author is unable to reject the essential empirical implications of the model and obtain sensible estimates of the price and income elasticities of the demand for imported consumer durables. Copyright 1996 by MIT Press.

Richard H Clarida

1996-01-01

389

Argumentative Function in Child Discourse.  

ERIC Educational Resources Information Center

Describes a study of preschool children's utterances and their context, intended to provide evidence of children's argumentative capacities. Shows how children, though perhaps not consciously, use language to intervene upon reality in order to modify a state of things by sensibly arguing their case. (SED)

Albano, Maria-Grazia; And Others

1985-01-01

390

Impact of Interactive EnergyBalance Modeling on Student Learning in a Core-Curriculum Earth Science Course  

Microsoft Academic Search

An interactive instructional module has been developed to study energy balance at the earth's surface. The module uses a graphical interface to model each of the major energy components involved in the partitioning of energy at this surface: net radiation, sensible and latent heat fluxes, ground heat flux, heat storage, anthropogenic heat, and advective heat transport. The graphical interface consists

R. L. Mandock

2008-01-01

391

The scintillation method tested over a dry vineyard area  

Microsoft Academic Search

Measurements of a scintillometer device mounted at 4 m above a dry vineyard area in La Mancha, Spain, are used to obtain an average sensible heat flux densityH. Averaging is over a rectangular area determined by the distance between the scintillometer light source and receptor (875 m) and some upwind distance governed by the horizontal wind speed perpendicular to that

H. A. R. DE BRUIN; W. Kohsiek

1995-01-01

392

Improvement of plantar tactile sensitivity by stochastic resonance for prevention of falling  

Microsoft Academic Search

For a senior person, the fall is danger with the risk of the injuries such as bone fractures. Plantar tactile sensibility is one of the senses contributing to stability of gait. In this study, we develop a device improving plantar tactile sensitivity by stochastic resonance to improve stability of gait of elderly person. For development of the device, we tested

Satoshi Kudoh; Ming Ding; Hirohsi Takemura; Hiroshi Mizoguchi

2011-01-01

393

Chemical energy storage system for SEGS solar thermal power plant  

Microsoft Academic Search

The Pacific Northwest Laboratory evaluated the potential feasibility of using chemical energy storage at the Solar Electric Generating System (SEGS) power plants developed by Luz International. Like sensible or latent heat energy storage systems, chemical energy storage can be beneficially applied to solar thermal power plants to dampen the impact of cloud transients, extend the daily operating period, and\\/or allow

D. R. Brown; J. L. Lamarche; G. E. Spanner

1992-01-01

394

Contenido de metales pesados en hígado y plumas de aves marinas afectadas por el accidente del \\  

Microsoft Academic Search

Resumen: Las aves marinas son organismos situados en la cum- bre de las cadenas alimentarias oceánicas, lo que permite su empleo en programas de biomonitorización para evaluar el efec- to de los más diversos contaminantes sobre estos sensibles eco- sistemas. En el presente trabajo se han analizado las concentra- ciones de distintos metales pesados (Pb, Zn, Cd y Cu) en

Pérez López M; Cid Galán F; Hernández Moreno D; López Beceiro; Fidalgo Álvarez; Soler Rodríguez

2005-01-01

395

Frank Gehry: roofing, wrapping, and wrapping the roof  

Microsoft Academic Search

Frank Gehry's work has taken the architectural stage worldwide. Without theorising his work, Gehry has produced a sensible architecture that deserves serious examination. In many ways, his work speaks for the present problematic state of architecture; the long standing relation of architecture to sculpture and other forms of artistic creativity; architecture's relation to its own history; the impact of telecommunication

Gevork Hartoonian

2002-01-01

396

78 FR 3034 - Applications and Amendments to Facility Operating Licenses and Combined Licenses Involving...  

Federal Register 2010, 2011, 2012, 2013

...continue to be supplied by the CST to the Auxiliary Feedwater (AFW) pumps to remove heat from the Reactor Coolant System (RCS...required source of usable volume of safety grade water to the AFW System pumps to remove decay and sensible heat from the...

2013-01-15

397

Numerical study of a novel dew point evaporative cooling system  

Microsoft Academic Search

Dew point evaporative cooling system is an alternative to vapor compression air conditioning system for sensible cooling of ventilation air. This paper presents the theoretical performance of a novel dew point evaporative cooling system operating under various inlet air conditions (covering dry, moderate and humid climate) and influence of major operating parameters (namely, velocity, system dimension and the ratio of

B. Riangvilaikul; S. Kumar

2010-01-01

398

Using Graphic Texts in Secondary Classrooms: A Tale of Endurance  

ERIC Educational Resources Information Center

In 2006, the author entered the crucible of trying to use graphic novels in her classroom to promote her students' artistic sensibilities. In this article, she discusses benefits and some problems--including access, content, and expense--of teaching graphic novels.

Rice, Mary

2012-01-01

399

The energy balance of central Mexico City during the dry season  

Microsoft Academic Search

The first measurements of the energy balance fluxes of a dry, densely built-up, central city site are presented. Direct observation of the net radiation, sensible and latent heat flux densities above roof-top in the old city district of Mexico City allow the heat storage flux density to be found by residual. The most important finding is that during daytime, when

T. R. Oke; R. A. Spronken-Smith; E. Jáuregui; C. S. B. Grimmond

1999-01-01

400

Heat Storage in Urban Areas: Local-Scale Observations and Evaluation of a Simple Model  

Microsoft Academic Search

The flux density of sensible heat to or from storage in the physical mass of the city is determined for seven cities (Chicago, Illinois; Los Angeles, California; Mexico City, Distrito Federal; Miami, Florida; Sacramento, California; Tucson, Arizona; and Vancouver, British Columbia) in North America across a 308 latitudinal range. These cities have a variety of synoptic-scale climates and surface cover

C. S. B. Grimmond; T. R. Oke

1999-01-01

401

The Meaning and Measurement of Income Mobility  

Microsoft Academic Search

Income mobility may be seen as arising from two sources: (i) the transfer of income among individuals with total income held constant, and (ii) a change in the total amount of income available. In this paper, we propose several sensible properties defining the concept of income mobility and show that an easily applicable measure of mobility is uniquely implied by

Gary S. Fields; Efe A. Ok

1996-01-01

402

Suburban-rural energy balance comparisons in summer for Vancouver, B.C  

Microsoft Academic Search

Simultaneous energy balance observations at a rural and a suburban site in Vancouver, B.C. during the summer of 1983 are presented. The study is a follow-up to that conducted in 1980. Many of the 1980 results were unexpected and the present study seeks to assess their representativeness. The net radiant, turbulent sensible, and rural soil heat flux densities were measured

H. A. Cleugh; T. R. Oke

1986-01-01

403

Development of a Method of Magnetic Structural Analysis of Steel and Cast-Iron Products in Machine-Building  

Microsoft Academic Search

Results of the investigations of the Laboratory of magneto-dynamical methods of testing in development of magnetic structural analysis of steel and cast- iron products in large-scale production are outlined in this report. The techniques have been elaborated for computation of the sensibility of magnetic parameters of a product to magnetic properties of the material, size of the product, its magnetic

S. G. SANDOMIRSKII

2006-01-01

404

Assessing the usability of open verifiable e-voting systems: a trial with the system Prêt à Voter  

Microsoft Academic Search

?Abstract ? E-voting systems - the combination of vote-casting, ballot transmission and counting, auditing and monitoring systems - have been gaining much attention from the international community as a suitable solution for preventing errors issued from human reliability on vote counting. Whilst many reports have said about currently available pilots and proposals are sensible, some fundamental issues remain unresolved such

Marco Winckler; Regina Bernhaupt; Philippe Palanque; David Lundin; Kieran Leach; Peter Ryan; Eugenio Alberdi; Lorenzo Strigini

405

Operationalizing a Frailty Index from a Standardized Comprehensive Geriatric Assessment  

Microsoft Academic Search

OBJECTIVES: To construct and validate a frailty index (FI) that is clinically sensible and practical for geriatricians by basing it on a routinely used comprehensive geriatric assessment (CGA) instrument. DESIGN: Secondary analysis of a 3-month randomized, controlled trial of a specialized mobile geriatric assessment team. SETTING: Rural Nova Scotia. Participants were seen in their homes. PARTICIPANTS: Frail older adults, of

David M. Jones; Xiaowei Song; Kenneth Rockwood

2004-01-01

406

A critical assessment of the sensitivity concept in geomorphology  

Microsoft Academic Search

The landscape sensitivity concept concerns the likelihood that a given change in the controls of a system or the forces applied to the system will produce a sensible, recognisable, and persistent response. The idea is an essential element of the fundamental proposition of landscape stability. This is described as a function of the spatial and temporal distributions of the resisting

Denys Brunsden

2001-01-01

407

The soul of the viable system model  

Microsoft Academic Search

The functionalist interpretation of how to employ the Viable System Model (VSM), which sees it being used to identify systems in the world, clarify their objectives, and rearrange their subunits according to some idealized structure, cannot be justified from a reading of Beer's works and is sensibly rejected by sophisticated users of the model. Taking that as given, what this

Michael C. Jackson

1992-01-01

408

Inviting Discomfort: Foregrounding Emotional Labour in Teaching Anthropology in Post-Apartheid South Africa  

ERIC Educational Resources Information Center

This article examines the potential and limitations of Megan Boler's "pedagogy of discomfort" in a post-apartheid yet heavily racialised South Africa. Taking an 'ethnographic sensibility' to anthropological teaching, this paper sketches the social and historical context of discomfort produced by everyday classroom…

Macdonald, Helen Mary

2013-01-01

409

Journal bearings optimization for mass balancing systems used in internal combustion engines  

Microsoft Academic Search

Purpose – To provide an optimization methodology for the journal bearings of mass balancing systems, that consists in a sensibility analysis of the journal bearings design parameters in the journal bearing operating parameters, as well as the comparison and selection of the journal bearing materials and the selection of the lubrication grooves suitable. Design\\/methodology\\/approach – The methodology followed comprehends three

Ludovico Morais; Luís Andrade Ferreira

2006-01-01

410

A linear regression-based study for temperature sensitivity analysis of Iran electrical load  

Microsoft Academic Search

In this paper sensibility of Iran network load to the temperature has been studied by the linear regression method. The linear regression analysis of Iranpsilas electrical load recognizes that the load pattern is heavily dependent on temperature, and finds a linear function between the load and the networkpsilas temperature. This study shows that temperature has a great effect on Iranpsilas

S. M. Moghaddas-Tafreshi; Mahdi Farhadi

2008-01-01

411

A survey of mobility models for ad hoc network research  

Microsoft Academic Search

In the performance evaluation of a protocol for an ad hoc network, the protocol should be tested under realistic conditions including, but not limited to, a sensible transmission range, limited buffer space for the storage of messages, representative data traffic models, and realistic movements of the mobile users (i.e., a mobility model). This paper is a survey of mobility models

Tracy Camp; Jeff Boleng; Vanessa Davies

2002-01-01

412

How second law analysis helps optimize maintenance budgeting; A fundamental example of a leaking steam trap  

Microsoft Academic Search

This paper reports that funds available for enhancing plant efficiency must be expanded prudently. An area often overlooked, but with a potential to save significant energy dollars, is steam traps. Steam trap maintenance programs can be extremely effective in saving energy dollars if approached sensibly. The first step is determining what a leaking trap really costs in energy dollars. This

McCauley

1991-01-01

413

Analysis of four methods for temporal displacements measurement of ultrasonic echoes for their application on temperature estimation  

Microsoft Academic Search

In this work an analysis of four methods for temporal displacement measurement of ultrasonic echoes is presented, to determine their precision and sensibility to different noise levels, with the main objective to evaluate their potential application on non invasive internal temperature estimation. Procedures and methodologies to perform this analysis are described, using different ultrasonic signals acquired, in the hyperthermia temperature

I. Bazan; A. Vera; L. Leija; A. Ramos

2009-01-01

414

Use of mechanistic information in risk assessment for toxic chemicals  

Microsoft Academic Search

Risk assessment (RA) for toxic chemicals is assumed to be a scientific activity providing a framework of principles for the compilation and evaluation of all available scientific information and the rational extrapolation to human health effects in as quantitative terms as possible and with a high degree of certainty. Sensible public health decisions are made more certain through the use

George C. Becking

1995-01-01

415

The Metrological Characterization And Optimization Of A Low Cost Measurement System For Inductance Tomography On Conductive Materials  

Microsoft Academic Search

The paper proposes the improvement and the metrological characterization of a measurement system for non-destructive testing on conductive materials. The limits showed by the previous realized prototype are discussed and overcome using a new hardware and software solution. The metrological characterization in terms of probe linearity, measurement uncertainty, and crack detection sensibility is reported. The experimental analysis carried out using

Andrea Bernieri; Luigi Ferrigno; Marco Laracca; Salvatore Ventre

416

Becoming a Stepfamily: Patterns of Development in Remarried Families.  

ERIC Educational Resources Information Center

Noting that partners enter into stepfamily relationships with expectations more appropriate to biological families, this book examines the unique and complex dynamics of remarried families. Drawing on interviews with over 100 stepfamily members, current research, a solid theoretical framework, and a clinical sensibility, the book presents a model…

Papernow, Patricia L.

417

Evapotranspiration from a boreal forest drainage basin using an energy balance\\/eddy correlation technique  

Microsoft Academic Search

Meteorological techniques were used to monitor evapotranspiration (ET) at two sites in a boreal forest drainage basin located in southeastern Manitoba, Canada. An energy balance method was used in which net radiation (RN) and ground heat flux (G) were measured directly. Sensible heat flux (H) was measured by the eddy correlation technique using a propeller anemometer and a fine-wire thermocouple.

B. D. Amiro; E. E. Wuschke

1987-01-01

418

Intérêt du dosage de l'élastase pancréatique fécale chez les sujets mucoviscidosiques  

Microsoft Academic Search

Interest of pancreatic faecal elastase assay in cystic fibrosis.About 85 % of the cystic fibrosis (CF) are pancreatic insufficient. The determination of pancreatic function is an essential criteria in this pathology. The aim of our study was to assess sensibility, specificity, practibility of the pancreatic faecal elastase (E1) assay and the relationship between the genotype of (CF) patients and the

C Deffert; JP Chouraqui; JP Girardet; D Hubert; M Pressac

2000-01-01

419

Parameterization of the Urban Water Budget with the Submesoscale Soil Model  

Microsoft Academic Search

This paper presents the hydrological component of the Submesoscale Soil Model, urbanized version (SM2-U). This model is an extension of the rural Interactions between Soil, Biosphere, and Atmosphere (ISBA) soil model to urban surfaces. It considers in detail both rural and urban surfaces. Its purpose is to compute the sensible heat and humidity fluxes at the canopy atmosphere interface for

Sylvain Dupont; Patrice G. Mestayer; Emmanuel Guilloteau; Emmanuel Berthier; Hervé Andrieu

2006-01-01

420

Reconstruction of an ulnar-sided thumb in central deficiency: a case report.  

PubMed

The thumb, which is normally located on the radial border of the hand, requires adequate sensibility to perceive its environment and adequate mobility to oppose to the other digits. We present a case in which the most ulnar digit of the hand was surgically augmented to function as a thumb. PMID:11172366

Segalman, K A; McClinton, M A; Anthony, M S

2001-01-01

421

Accelerating Brain Circuit Simulations of Object Recognition with CELL Processors  

Microsoft Academic Search

Humans outperform computers on many natural tasks including vision. Given the human ability to recognize objects rapidly and almost effortlessly, it is pragmatically sensible to study and attempt to imitate algorithms used by the brain. Analysis of the anatomical structure and physiological operation of brain circuits has led to derivation of novel algorithms that in initial study have successfully addressed

Andrew Felch; Jayram Moorkanikara Nageswaran; Ashok Chandrashekar; Jeff Furlong; Nikil Dutt; Richard Granger; Alex Nicolau; Alex Veidenbaum

2007-01-01

422

Ambiguity as Strategy in Organizational Communication.  

ERIC Educational Resources Information Center

Argues against overemphasizing clarity in the research and teaching of organizational communication because clarity and openness are neither the norm nor sensible standards to gauge communication competence or organizational effectiveness. Defines strategic ambiguity and explores its use in organizations to accomplish goals. Presents suggestions…

Eisenberg, Eric M.

1984-01-01

423

Trajan's Rome: The Man, the City, the Empire. A Unit of Study for Grades 6-9.  

ERIC Educational Resources Information Center

The integration of the study of art and history in a broad context of social, cultural, and political meaning cultivates a students' creative, aesthetic, critical and art historical sensibilities. This unit of study explores the time of the Roman Emperor Trajan, the decades from A.D. 98 to 180, a period considered to be the height of civilization.…

Anderson, Stephen S.; Flanders, Claudia; Landers, David

424

Radioresistance and Radiosensitivity in Drosophila Melanogaster.  

National Technical Information Service (NTIS)

Studying the mechanisms controlling radioresistant in Drosophila the sensibility of four strains of Drosophila melanogaster to sex-linked recessive lethal mutations induced by 5kR Cobalt-60 gamma radiation and 0,006 M EMS or 0,25% of caffeine was determin...

M. L. Reguly

1983-01-01

425

Factor Analysis of the Image Correlation Matrix.  

ERIC Educational Resources Information Center

Whether to factor the image correlation matrix or to use a new model with an alpha factor analysis of it is mentioned, with particular reference to the determinacy problem. It is pointed out that the distribution of the images is sensibly multivariate normal, making for "better" factor analyses. (Author/CTM)

Kaiser, Henry F.; Cerny, Barbara A.

1979-01-01

426

Response to Yiannis Miralis, "Manos Hadjidakis: The Story of an Anarchic Youth and a "Magnus Eroticus"  

ERIC Educational Resources Information Center

Manos Hadjidakis and his work are like his song, "O Mythos," for they take you from reality to fantasy and bring you back again. In Magnus Eroticus, the combination of lyrics and music is at the highest level of sensibility and the musical style of each song is superb. Music follows the verse to express its deepest meaning while maintaining its…

Serghi, Lenia

2004-01-01

427

The Hidden Subverter: A Case Study in Community Adolescent Alcohol Education.  

ERIC Educational Resources Information Center

Notes that, while prevention of alcoholism and alcohol abuse has become a national priority, actual programs designed to prevent alcohol abuse among youths assault the sensibilities and cherished values of adults. Describes political aspects of alcohol education and mechanisms within which to recognize and abate program subversion. (Author)

Flanigan, Beverly

1987-01-01

428

Effect of heat recovery on the performance of a shape-memory effect heat engine  

Microsoft Academic Search

The performance of a shape-memory effect heat engine employing heat recovery has been modelled taking into account heat transfer to the working element and non-ideal material behaviour. Calculations of the energy flux to and from the working element show that a substantial fraction of the sensible heating requirements can be recovered by heat transfer between the heating and cooling stages.

P. G. McCormick

1987-01-01

429

Investigation on solar hybrid desiccant cooling system for commercial premises with high latent cooling load in subtropical Hong Kong  

Microsoft Academic Search

This study found that the solar hybrid desiccant cooling system (SHDCS) was more effective to handle the premises with high latent cooling load in the hot and humid climate compared to the conventional air-conditioning system. The SHDCS was designed to use the solar-thermal desiccant cooling to tackle the latent load; and the electrical vapour compression refrigeration to cater the sensible

K. F. Fong; C. K. Lee; T. T. Chow; A. M. L. Fong

2011-01-01

430

A new design project of the line feed structure for large spherical radio telescope and its nonlinear dynamic analysis  

Microsoft Academic Search

A new design of the line feed structure for a large spherical radio telescope (LSRT) is presented in this paper. Integrated mechanical, electronic, optic and automatic control technologies are employed to make considerable improvement upon the Arecibo spherical radio telescope in Puerto Rico, U.S.A. Nonlinear dynamic analysis of the suspended cable system was carried out with some sensible results that

B. Y. Duan

1999-01-01

431

Pudendal nerve decompression in perineology : a case series  

Microsoft Academic Search

BACKGROUND: Perineodynia (vulvodynia, perineal pain, proctalgia), anal and urinary incontinence are the main symptoms of the pudendal canal syndrome (PCS) or entrapment of the pudendal nerve. The first aim of this study was to evaluate the effect of bilateral pudendal nerve decompression (PND) on the symptoms of the PCS, on three clinical signs (abnormal sensibility, painful Alcock's canal, painful \\

Jacques Beco; Daniela Climov; Michèle Bex

2004-01-01

432

Control strategy and experimental study on a novel defrosting method for air-source heat pump  

Microsoft Academic Search

A new defrosting method – the sensible heat defrosting method, aiming at shelving the various disadvantages of the conventional reverse cycle defrosting was proposed in this paper. The mechanism and process of this method was analysed. To guarantee the reliability, the self-organizing control algorithm with self-learning function was introduced based on the cardinal fuzzy control algorithm. Moreover, the control strategy

Cai-Hua Liang; Xiao-Song Zhang; Xiu-Wei Li; Zhen-Qian Chen

2010-01-01

433

The Manifestation of Symmetry between the Emergence of Consciousness and the Development of Competence.  

ERIC Educational Resources Information Center

This paper describes an experiment in which 30 students, classified according to high and low analytical performance, were given a reading and text production test to determine their sensibility to the structure of an Icelandic saga. This material was used because of its extreme simplicity on the textual surface level, a property suited for…

Bierschenk, Bernhard; Bierschenk, Inger

434

Sensory changes with prolonged double-cuff tourniquet time in hand surgery.  

PubMed

This study evaluates the sensory changes that occur in the operated hand after the use of the double-cuff tourniquet technique for up to 4 hours. Thirty patients whose hand operations lasted more than 2 hours were evaluated. Tourniquet time ranged between 2 hours and 4 hours, 17 minutes. Light touch, von Frey's aesthesiometry, vibratory sensation, and two-point discrimination were examined. Subjective overall sensation and postoperative edema were also assessed. Patients were evaluated the evening before operation, on the second postoperative day, and at every out-patient follow-up visit, until all examined parameters returned to normal. Of the patients 73% demonstrated clinically normal sensibility test results within 23 days after operation. In 80% of all patients, subjective sensibility of the operated hand was equal to the nonoperated hand within 1 week of operation. Ultimately, all patients (96%) but one, demonstrated normal sensibility test results and normal subjective sensibility. Postoperative edema developed in 53% of the patients; it subsided in less than 4 weeks. The double-cuff technique can prolong tourniquet time safely for up to 4 hours. PMID:3241048

Dreyfuss, U Y; Smith, R J

1988-09-01

435

Comparative studies on combination of optical and SAR signatures in estimation of plant and soil variables  

Microsoft Academic Search

Information based on satellite data is used for evaluation of crop growth conditions what is essential for proper management of agricultural fields. The database of satellite data used for this application consists of optical and radar data from ERS. Soil moisture has been assessed using two different approaches. First one concerned the application of soil moisture index based on sensible

Katarzyna Dabrowska-Zielinska; Yoshio Inoue; Wanda Kowalik; Maria Gruszczynska

2002-01-01

436

Expanding portion sizes in the US marketplace: Implications for nutrition counseling  

Microsoft Academic Search

The greater energy content of larger food portions could be contributing to the increasing prevalence of overweight. Prevention guidelines recommend ?sensible” portion sizes but do not define them. The US Department of Agriculture (USDA) defines standard serving sizes for dietary guidance, and the Food and Drug Administration (FDA) defines standard servings for food labels. To use these standards in counseling,

LISA R. YOUNG; Marion Nestle

2003-01-01

437

URBAN SCALE VARIATIONS OF TURBULENCE PARAMETERS AND FLUXES  

EPA Science Inventory

Sensible, (H), and latent, (LE), heat fluxes and turbulence statistics in St. Louis, Missouri and the surrounding region are presented. The urban-scale analyses were derived from a series of aircraft transects at 150 m above ground across the metropolitan area during the afternoo...

438

Commentary: Implementation, Sustainability, and Scaling up in School Contexts--Can School Psychology Make the Shift?  

ERIC Educational Resources Information Center

In the context of a broader focus on prevention and school psychology, there is no question that Elias, Zins, Graczyk, and Weissberg (2003) raise key issues in the movement toward a sensible approach to creating school and classroom environments that are responsive to children's developmental needs. The Elias et al. article argues convincingly for…

Pianta, Robert C.

2003-01-01

439

Engaging Teachers in Ed Reform  

ERIC Educational Resources Information Center

Teacher engagement is crucial to the success of education reforms. Not only can teachers serve as policymakers' eyes and ears on the ground, sharing firsthand knowledge of challenges in the classroom, but their advocacy can be instrumental to passing smart, sensible policies, and their buy-in can make or break reform implementation. Ongoing…

Steans, Robin

2012-01-01

440

ED's Proposed Changes to SFSF Data Collection and Reporting Requirements: DQC's Submitted Comments  

ERIC Educational Resources Information Center

This letter is submitted to comment on the U.S. Department of Education's (ED) proposed revisions to the American Recovery and Reinvestment Act's (ARRA) State Fiscal Stabilization Fund (SFSF), as published in the September 23, 2011, Federal Register. Overall, the Data Quality Campaign believes the proposed changes strike a sensible balance: they…

Data Quality Campaign, 2011

2011-01-01

441

Encouraging Agitation: Teaching Teacher Candidates to Confront Words that Wound  

ERIC Educational Resources Information Center

In this analytic conceptual essay, and from her standpoint as an African American woman teacher/researcher, the author presents a rich description of a personal sensibility and promising professional practice for literacy educators and those who prepare Reading/English/Language Arts teacher candidates for service among students who are…

Staples, Jeanine M.

2010-01-01

442

Where I'm Coming From  

ERIC Educational Resources Information Center

Asserts that Asian American kids are looking for Asian American characters with a style that commands attention and respect in terms they can understand. Only in the works of Taro Yashima and Lawrence Yep are the literary sensibility, language and vision of Asian and Asian American culture. We need a body of Asian American myth to form and express…

Chin, Frank

1976-01-01

443

EFFECTS OF LEAF AREA PROFILES AND CANOPY STRATIFICATION ON SIMULATED ENERGY FLUXES: THE PROBLEM OF VERTICAL SPATIAL SCALE. (R827676)  

EPA Science Inventory

We investigated the effects of the shape of leaf area profiles and the number of canopy layers on simulated sensible and latent heat fluxes using a gradient diffusion-based biometeorological model. Three research questions were addressed through simulation experiments: (1) Given ...

444

Hole traps and charges in ion implanted MOS capacitors: sensitivity to ionizing radiation  

Microsoft Academic Search

The development of detectors for ionizing radiation compatible with CMOS technology is of great interest due to the possibility of monolithic integration with the control and signal processing electronics. Nowadays, some commercial CMOS radiation detectors are available and the main challenge for research is towards increasing their sensibility and making them work without batteries (non-polarized detectors). These accomplishments would allow

N. Sabaté; B. Garrido; J. R. Morante; G. Sarrabayrouse

2000-01-01

445

In Search of an Adequate Yet Affordable Tutor in Online Learning Networks  

Microsoft Academic Search

Learning in a learning network tends to be taxing for tutors, mainly because of the heterogeneity of the student group. Moreover, online learners tend be 'lone' learners with little or no social contacts in the network. Traditionally, intelligent tutoring systems have been used to provide content related support to individual students. It is argued that these are not a sensible

Peter B. Sloep; Peter Van Rosmalen; Liesbeth Kester; Francis Brouns; Rob Koper

2006-01-01

446

Spatial Kinetics Calculations of MOX Fueled Core: Variant 22  

Microsoft Academic Search

This work is part of a Joint US\\/Russian Project with Weapons-Grade Plutonium Disposition in VVER Reactors and presents the results of spatial kinetics calculational benchmarks. The examinations were carried out with the following purposes: to verify one of spatial neutronic kinetics model elaborated in KI, to understand sensibility of the model to neutronics difference of UOX and MOX cores, to

Pavlovichev

2001-01-01

447

Aerodynamic Optimization of a Solar - Bio Diesel Hybrid Vehicle  

Microsoft Academic Search

Energy efficiency is the most critical aspect for a successful solar powered automobile and much can be gained from the reduction of aer odynamic drag on such a vehicle. Yet, for a solar car to be practical to the everyday driver, it has to be ergonomically feasible, financially sensible, and aesthetically pleasing. This research compares aerodynamic drag calculations produced by

Neal A. Allgood

448

Nouvel arrêté de bonnes pratiques d’immunohématologie : analyse critique  

Microsoft Academic Search

The evolution of the methods used in immunohematology is a constant concern for all those involved in the process. Thus, during the last few years, new technologies have been introduced which aim at improving performance. This improvement is not limited to the search for an overall increase in specificity–sensibility; it also takes into account the capability to detect “the clinical

L Mannessier

2003-01-01

449

Private and government consumption with liquidity constraints  

Microsoft Academic Search

Economic theory predicts that liquidity constraints and substitutability or complementarity between private and government consumption result in excess sensitivity of private consumption to income and government consumption, respectively. Using annual data, we estimate these excess sensitivity parameters for each of 54 countries and show that they not only have sensible values but are also correlated with several variables in ways

Georgios Karras

1996-01-01

450

Effects of Implementing the Simple Biosphere Model in a General Circulation Model  

Microsoft Academic Search

The Simple Biosphere Model (SiB) of Sellers et al. was designed to simulate the interactions between the Earth's land surface and the atmosphere by treating the vegetation explicitly and realistically, thereby incorporating the biophysical controls on the exchanges of radiation, momentum, sensible and latent heat between the two systems. This paper describes the steps taken to implement SiB in a

N. Sato; P. J. Sellers; D. A. Randall; E. K. Schneider; J. Shukla; J. L. Kinter III; Y.-T. Hou; E. Albertazzi

1989-01-01

451

Economic features of integral, modular, small-to-medium size reactors  

Microsoft Academic Search

The renewed interest towards nuclear energy is largely based on the escalation of fossil fuels prices and the global warming concerns. The nuclear option has to face not only the public opinion sensibility, mainly related to plant safety and waste disposal issues, but also the economic evaluation from investors and utilities, particularly careful on that energy source and in deregulated

M. D. Carelli; P. Garrone; G. Locatelli; M. Mancini; C. Mycoff; P. Trucco; M. E. Ricotti

2010-01-01

452

Managing continuing professional development to support school-based target setting  

Microsoft Academic Search

In this article the author attempts to make more problematic the sensible and rational DfEE model of school review, planning and action; and to argue the case for more continuous professional development (CPD) and mentoring support for schools, if target setting is to become the valuation ‘management tool’ which DfEE wish headteachers and governing bodies to use in their development

Pauline V. Smith

1999-01-01

453

Experts, Bayesian Belief Networks, rare events and aviation risk estimates  

Microsoft Academic Search

Bayesian Belief Networks (BBN) are conceptually sensible models for aviation risk assessment. The aim here is to examine the ability of BBN-based techniques to make accurate aviation risk predictions. BBNs consist of a framework of causal factors linked by conditional probabilities. BBN conditional probabilities are elicited from aviation experts. The issue is that experts are not being asked about their

Peter Brooker

2011-01-01

454

School Readiness Goal Begins with Health Care Reform.  

ERIC Educational Resources Information Center

Currently 59 bills are awaiting Congressional action. Meanwhile, a national coalition of economists and medical specialists (the National Leadership Coalition for Health Care Reform) are circulating a sensible consensus health reform plan proposing national practice guidelines; universal health care access; and efficient cost control, delivery,…

Penning, Nick

1992-01-01

455

Ion Uptake by Halophytic Plants to Mitigate Saline Stress in Solanum lycopersicon L., and Different Effect of Soil and Water Salinity  

Microsoft Academic Search

Soil and water salinization are affecting an increasing number of countries in the world, especially in arid and semi-arid regions, and cause sensible reductions of agricultural land extension and of crop yields. Consociation with halophytic plants is a promising but not yet widely investigated strategy of salt stress reduc - tion in crops. In this experiment, tomato plants were cultivated

Paolo ZuccaRini

2008-01-01

456

Measuring Surface Fluxes in Cape.  

National Technical Information Service (NTIS)

Two stations (site 1612 and site 2008) were operated by the University of Georgia group from 6 July 1991 to 18 August 1991. The following data were collected continuously: surface energy fluxes (i.e., net radiation, soil heat fluxes, sensible heat flux an...

E. T. Kanemasu T. D-shah D. Nie

1992-01-01

457

Comprehensible and Accurate Cluster Labels in Text Clustering  

Microsoft Academic Search

The purpose of text clustering in information retrieval is to discover groups of se- mantically related documents. Accurate and comprehensible cluster descriptions (labels) let the user comprehend the collection's content faster and are essential for various doc- ument browsing interfaces. The task of creating descriptive, sensible cluster labels is dicult—typical text clustering algorithms focus on optimizing proximity between doc- uments

Jerzy Stefanowski; Dawid Weiss

2007-01-01

458

VOICE PROBLEMS IN TRANSLATIONS OF ROMANIAN AND ENGLISH ECONOMIC TEXTS  

Microsoft Academic Search

The difficulties brought about by the passive constructions have been an issue to debate for many linguists and scientist. Translations become ever more important in an increasingly global marketplace, and they are sometimes taken too lightly, when in fact it is a serious business that should be approached sensibly in order to avoid poor results. Translation is a specialised branch

Sim Monica Ariana

2011-01-01

459

Neuropathy in female dental personnel exposed to high frequency vibrations  

Microsoft Academic Search

OBJECTIVE--To evaluate early neuropathy in dental personnel exposed to high frequency vibrations. METHODS--30 dentists and 30 dental hygienists who used low and high speed hand pieces and ultrasonic scalers were studied, and 30 dental assistants and 30 medical nurses not exposed to vibration (all women). Vibrotactile sensibility, strength, motor performance, sensorineural symptoms and signs, and vascular symptoms in the hands,

I Akesson; G Lundborg; V Horstmann; S Skerfving

1995-01-01

460

Uneven Youth Resistance across Uneven School Contexts  

ERIC Educational Resources Information Center

This postcard compares youth resistance across classroom contexts. It draws from a two-year ethnography of the East Oakland Step to College (Step) program, which prepared underserved African-American and Latina/o youth to enroll in four-year universities, while nurturing students' sensibilities to fight for social justice. Students were highly…

Hidalgo, Nicole

2011-01-01

461

Engine Control Systems Study as Applied to Inter-Engine Thrust Control.  

National Technical Information Service (NTIS)

VTOL type aircraft incorporating turbo-fan engines as lifting means do not sensibly lend themselves to the cross-coupling provisions inherently available with the shafting of propeller type engines. An engine failure in the fan engine case is therefore a ...

A. N. Carras P. W. Hughett

1970-01-01

462

Seeing and Experiencing Relativity--A New Tool for Teaching?  

ERIC Educational Resources Information Center

"What would you see if you were riding a beam of light?" This thought experiment, which Einstein reports to have "conducted" at the age of 16, of course has no sensible answer: as Einstein published a decade later, you could never reach the speed of light. But it does make sense to ask what you would see if you were traveling…

Kortemeyer, Gerd; Fish, Jordan; Hacker, Jesse; Kienle, Justin; Kobylarek, Alexander; Sigler, Michael; Wierenga, Bert; Cheu, Ryan; Kim, Ebae; Sherin, Zach; Sidhu, Sonny; Tan, Philip

2013-01-01

463

Thermal energy storage  

Microsoft Academic Search

A discussion of a thermal energy storage subsystem is provided which is integrated into a steam Rankine solar thermal electric power generation system. It uses phase change and sensible heat characteristics of the steam for energy transport and encapsulated salt for energy storage. Direct contact heat exchange is featured in the storage subsystem which has superior thermodynamic performance and equipment

B. L. Pierce; F. R. Spurrier; M. K. Wright

1977-01-01

464

Progress in determining the thickness and distribution of volcanic materials on Mars  

Microsoft Academic Search

Volcanic plains and constructs comprise over half the surface of Mars. Volume estimates require sensible estimates of the thickness of volcanic materials. The completion of the 1:2 M Viking photomosaics and a refined geologic map based on Viking photography set the stage for improved thickness studies and volume estimates. Currently, a revised (but incomplete) data base of 740 partially buried

R. A. Dehon

1988-01-01

465

Dichromated gelatin holograms with triphenyl dyes  

NASA Astrophysics Data System (ADS)

Holographic properties of dichromated gelatin (DCG) colored with triphenyl dyes (TDCG), were studied. We described experimental techniques for its register of these holograms. This emulsion has excellent resolution and behavior. That increase the photo sensibility respect to conventional DCG and is easy to use.

Páez-Trujillo, G.; Olivares-Pérez, A.; Mejias-Brizuela, N.; Garay-Hernández, M. P.; Fontanilla-Urdaneta, R.; Toxqui-López, S.; Fuentes-Tapia, I.

2008-03-01

466

MODIFICATION OF A GAUSS DISPERSION MODEL FOR THE ASSESSMENT OF ODOUR SENSATION IN THE VICINITY OF LIVESTOCK BUILDINGS  

Microsoft Academic Search

The concentration of odoriphores can be handled like other volatile pollutants. The dispersion of airborne emissions can be described by dispersion models (eg Gaussian model). To apply a dispersion model to odour emissions, the odour concentration and the volume flow of the outlet air have to be known. The emission model is based on a steady-state balance of the sensible

G. Schauberger; M. Piringer; E. Petz

467

A ROAD AHEAD FROM CANCUN? WEIGHING UP SOME GIVE-AND-TAKE SCENARIOS IN A DDA SPIRIT  

Microsoft Academic Search

Given that around 20 percent of the members of the World Trade Organisation (WTO) are identified as least developed countries (LDC's), global trade negotiations, resumed after the Cancun fiasco of September 2003, must address some major development issues in the spirit of the Doha Development Agenda (DDA), if they are to make any headway. This will, predictably, involve some sensible

Shamim Shakur; Allan N. Rae; Srikanta Chatterjee

2004-01-01

468

Lying for Strategic Advantage: Rational and Boundedly Rational Misrepresentation of Intentions  

Microsoft Academic Search

Starting from an example of the Allies' decision to feint at Calais and attack Normandy on D-Day, this paper models misrepresentation of intentions to competitors or enemies. Allowing for the possibility of bounded strategic rationality and rational players' responses to it yields a sensible account of lying via costless, noiseless messages. In some leading cases, the model has generically unique

Vincent P. Crawford

2003-01-01

469

Energy Dependence of the gamma Detection Efficiency for CaSO sub 4 (Dy) and BaSO sub 4 (Dy) Thermoluminescent Detectors.  

National Technical Information Service (NTIS)

The aim of the work was to make thermoluminescent detector with abnormal sensibility to low energy gamma-rays. Detectors made of BaSO sub 4 (Dy) phosphorus were synthesized. Response functions of BaSO sub 4 (Dy) and CaSO sub 4 (Dy) detectors were measured...

V. I. Tsovbun Y. Khenniger Kho Gi Khon

1983-01-01

470

Crescita, convergenza e strategie di sviluppo:alcune riflessioni - Some Reflections on Growth, Convergence and Development Strategies  

Microsoft Academic Search

The available evidence shows that less developed countries (LDCs) have been quite systematically excluded from the catch-up process. The absence of Laces’ convergence stands in striking contrast with the implications stemming from the traditional growth model. The recent revival of interest in growth theory since the mid- ‘80s has sensibly enhanced the scope f or public intervention; nevertheless, current policy

Marco Tronzano

1993-01-01

471

Estimation of Regional Surface Resistance to Evapotranspiration from NDVI and Thermal-IR AVHRR Data  

Microsoft Academic Search

Infrared surface temperatures from satellite sensors have been used to infer evaporation and soil moisture distribution over large areas. However, surface energy partitioning to latent versus sensible heat changes with surface vegetation cover and water availability. We tested a hypothesis that the relationship between surface temperature and canopy density is sensitive to seasonal changes in canopy resistance of conifer forests.

Ramakrishna R. Nemani; Steven W. Running

1989-01-01

472

On the mystery of the perennial carbon dioxide cap at the south pole of Mars  

Microsoft Academic Search

A perennial ice cap has long been observed near the south pole of Mars. The surface of this cap is predominantly composed of carbon dioxide ice. The retention of a CO2 ice cap results from the surface energy balance of the latent heat, solar radiation, surface emission, subsurface conduction, and atmospheric sensible heat. While models conventionally treat surface CO2 ice

Xin Guo; Mark Ian Richardson; Alejandro Soto; Anthony Toigo

2010-01-01

473

Submerged cultivation of Ganoderma lucidum biomass and immunostimulatory effects of fungal polysaccharides  

Microsoft Academic Search

Original Ganoderma lucidum strain MZKI G97 isolated from Slovenian forests was cultivated in a liquid substrate based on potato dextrose and olive oil. The influences of inoculum and oxygen partial pressure in batch and fed batch cultivation in a 10-l laboratory stirred tank reactor were studied. Fungal biomass was found to be oxygen and shear sensible. Using a 17% (wet

Marin Berovi?; Jožica Habijani?; Irena Zore; Branka Wraber; Damjan Hodžar; Bojana Boh; Franc Pohleven

2003-01-01

474

Toward Aligning Computer Programming with Clear Thinking via the Reason Programming Language  

Microsoft Academic Search

Logic has long set itself the task of helping humans think clearly. Certain computer program- ming languages, most prominently the Logo language, have been billed as helping young people become clearer thinkers. It is somewhat doubtful that such languages can succeed in this regard, but at any rate it seems sensible to explore an approach to programming that guarantees an

Selmer Bringsjord; Jinrong Li

475

Ultrasound-Based Fetal Tracking Technology During Labor: Is It the Next Best Thing?  

PubMed Central

In this column, the author reprises a recent selection from the Lamaze International research blog, Science & Sensibility. With the introduction of a new technology intended to acutely track fetal station and position during labor through birth, questions are being raised about the necessity—and possible danger—of this technology and its potential impact on normal birth.

Hull, Kimmelin

2012-01-01

476

Subtractive Schooling and Betrayal  

ERIC Educational Resources Information Center

To address the theme of this special issue--namely, the major challenges faced by teacher education in an increasing global society--the author finds herself returning to her earlier work. This return-intellectual-migration gives depth and meaning to the experience of immigration and speaks to the sensibilities (or lack thereof) that many teachers…

Valenzuela, Angela

2008-01-01

477

Weighted LAD based on the hat matrix  

Microsoft Academic Search

Least Absolute deviation (LAD) is very sensitive in the presence of high leverage. The letter is commonly detected by the Hat matrix. This paper aims to propose a new robust method called WLADH. It tries to correct sensibility of LAD estimator. We show that LAD sensitivity is corre- lated with leverage's hat matrix value (hii). Hubert and Rousseeuw (1997) proposed

S. Rekaia

478

"Little Vessels" or "Little Soldiers": New Zealand Protestant Children, Foreign Missions, Religious Pedagogy and Empire, "c."1880s-1930s  

ERIC Educational Resources Information Center

How late nineteenth- and early twentieth-century Protestant children supported and interacted with foreign missions is still a relatively undeveloped field of scholarly research. Missionary societies actively recruited children's money, energy and sensibilities for the missionary cause. Sunday school pedagogy and rhetoric focused on cultivating a…

Morrison, Hugh

2011-01-01

479

Sense and Nonsense in Dairy Farm Management Economic Analysis  

Microsoft Academic Search

The standard analytical approaches and methods of farm management economics are simple, sensible and powerful. Still, examples of inappropriate nonsensical, approaches to farm management economics questions proliferate. In this paper, the focus is on some inappropriate, nonsensical, approaches to socalled management analysis of dairy farming operations. Included in the analytical eccentricities which abound are such things as trying to evaluate

Alexandria Ferris; Bill Malcolm

1999-01-01

480

A Lifetime of Student Debt? Not Likely  

ERIC Educational Resources Information Center

In this article, the author examines the issue of student debt. Despite tales of gargantuan student debt burdens for some college graduates, studies show that most students borrow sensibly, pay it back, and are better off for having gone to college. But for a vocal minority of borrowers, problems with student-loan debt are very real. About 8…

Wilson, Robin

2009-01-01

481

Radio-echo studies of meteors at 68-centimeter wavelength  

Microsoft Academic Search

Radio-echo observations of sporadic meteors at 68 cm are described. Sufficient information was gathered to permit the computation of the velocity, height, duration, and intensity for most of the meteors. The principal conclusions reached are that (a) the meteors recorded at this short wavelength are seen ov. era height range not sensibly different from that at long wavelengths; (b) the

J. V. Evans

1965-01-01

482

Role of urban land use on mesoscale circulations and precipitation  

Microsoft Academic Search

A high resolution mesoscale meteorological model (MM5) was employed to study urban effects on rainfall over Oklahoma City, U.S.A. and Chennai, India. Numerical modeling results for Oklahoma City show that urban land use increases the daytime sensible heat flux while it decreases the latent heat flux over the city. Height of the level of free convection (LFC) is reduced by

Matthew Drennan Simpson

2006-01-01

483

Mean Traveltime Curves Analysis: A Method to Improve Understanding of Data Behaviour in 2-D Transmission Tomography at the Pre-Inversion Stage  

Microsoft Academic Search

Transmission tomography methods show a great sensibility to data variability, which eventually includes data errors, often present in field experiments. Local optimization methods, traditionally used to solve this inverse problem, are very sensitive to these difficulties, failing to converge properly in the presence of spurious data. Regularization methods partially cope with these weaknesses, damping the instabilities.A complementary approach, adopted here,

Juan L. Fernández Martínez; José P. Fernández Alvarez; Luis M. Pedruelo González

2006-01-01

484

From the Record: I  

ERIC Educational Resources Information Center

Attitudes of religious institutions toward art are discussed. It is suggested that art is regarded with suspicion because it involves the senses and sensibilities, and that Protestant-English based theology is afraid of sensuality because of its changing, rather than predictable, nature. (RW)

Spradling, Grant; And Others

1976-01-01

485

Risk assessment and nuclear power  

Microsoft Academic Search

The range of risk perceptions involving nuclear power is so great that there is little hope of bridging extreme positions, but a consensus based upon reasoned discussion among uncommitted people could determine a sensible path. Our concerns over the uncertainties of risk assessment have made it increasingly difficult to make responsible decisions fast enough to deal with modern needs. The

Bodansky

2009-01-01

486

Finesse de perception et acquisition du langage (The Finesse of Perception and Acquisition of Language).  

ERIC Educational Resources Information Center

This study focused on auditory perception, or phonetic discrimination, in foreign language learning. Subjects of the study were English-speakers (n=35) learning French. Researchers measured subjects' auditory sensibility, comparing it with progress in phonetic discrimination during the school year. Progress in the latter was measured by both a…

Pons-Ridler, Suzanne; And Others

487

Rational Energy Utilization in Coke-Oven-Plant Operations.  

National Technical Information Service (NTIS)

The economic use of energy in coke-oven-plant operations is discussed. In the process of high temperature coking more than 880 percent the heat applied remains as sensible heat in coke and raw gas. Due to present practice in coke plants these amounts of h...

H. Bankwitz L. Trepte

1977-01-01

488

A facile approach to the synthesis of chiral 2-substituted benzofurans.  

PubMed

An effective route to chiral optically active 2-substituted benzofurans directly from carboxylic acids is reported. This procedure, which allows the preparation of alpha-alkyl-2-benzofuranmethanamines from N-protected alpha-amino acids without sensible racemization phenomena, proceeds in good yields under mild conditions with the help of microwave irradiation. PMID:17419648

De Luca, Lidia; Giacomelli, Giampaolo; Nieddu, Giammario

2007-05-11

489

Simplifying a Process with Flowcharts.  

ERIC Educational Resources Information Center

The University of Kansas experience in applying Total Quality Management methods illustrates how use of flow charts can reduce substantially the time spent on a complex data-collection and reporting process. Although flow chart construction can be time-consuming, it is a systematic way to uncover sensible solutions with significant payoffs. (MSE)

Williams, JoAnn M.

1993-01-01

490

Waste heat recovery device  

Microsoft Academic Search

A cascade heat exchange system is described in which the heat given off in condensing a superheated vaporized refrigerant is used to vaporize carbon dioxide and to add sensible heat to a water system. The superheated discharge vapor of a refrigeration system is pumped into the shell side of a heat exchange vessel, where evaporative tube bundles absorb heat from

Barrow

1980-01-01

491

Conceptual Design Selection and Development of a Latent-Heat Thermal-Energy-Storage Subsystem for a Saturated-Steam Solar Receiver and Load.  

National Technical Information Service (NTIS)

The following latent heat storage concepts are described and evaluated in comparison with each other and with an oil/rock sensible heat storage system: (1) passive tube intensive (shell-and-tube heat exchanger) with and without heat transfer enhanced by f...

1981-01-01

492

78 FR 4038 - Critical Parts for Airplane Propellers  

Federal Register 2010, 2011, 2012, 2013

...these parts. Safety Analysis (Sec. 35.15) We...recognize that a meaningful numerical estimate of the reliability...Sec. 35.15 Safety Analysis. * * * * * (c) The...sensibly estimated in numerical terms. If the failure...stated in the safety analysis. * * * * * 0 3....

2013-01-18

493

Can Distributional Approximations Give Exact Answers?  

ERIC Educational Resources Information Center

Some mathematical activities and investigations for the classroom or the lecture theatre can appear rather contrived. This cannot, however, be levelled at the idea given here, since it is based on a perfectly sensible question concerning distributional approximations that was posed by an undergraduate student. Out of this simple question, and…

Griffiths, Martin

2013-01-01

494

Arts-based Environmental Education and the Ecological Crisis: Between Opening the Senses and Coping with Psychic Numbing  

Microsoft Academic Search

When educators try to encourage children to establish a bond between them and nature, they are faced with a major challenge. In general, many children seem to have lost interest in nature because it is less exciting than the world of electronic illusions. Educators seem badly in need of innovative ways to awaken and nourish the sensibility of children to

Jan van Boeckel

495

Data Clustering: 50 Years Beyond K-means  

Microsoft Academic Search

Organizing data into sensible groupings is one of the most fundamental modes of understanding and learning. As an example, a common scheme of scientific classification puts organisms into taxonomic ranks: domain, kingdom, phylum, class, etc.). Cluster analysis is the formal study of algo rithms and methods for grouping, or clustering, objects according to measured or percei ved intrinsic characteristics or

Anil K. Jain

2008-01-01

496

Sunni Islam: What Students Need to Know. Footnotes. Volume 15, Number 1  

ERIC Educational Resources Information Center

It is the mark of a great world religion to accommodate different outlooks and sensibilities. Quite often, these differences are manifested in terms of formal divisions within the faith. In Islam, the major split is between Sunni and the various forms of Shiism, though other divisions also exist. This essay, excerpted from the book "Divisions…

Calvert, John

2010-01-01

497

Yield Variations in Tree Crop Experiments with Specific Reference to Cacao  

Microsoft Academic Search

IN the past, large yield fluctuations within treatments in cacao fertilizer experiments have proved difficult to understand. These fluctuations, frequently occurring between adjacent trees, necessitate an unwieldy degree of replication before a sensible level of error variance is obtained within the experimental area. It is important to know the cause of these fluctuations, not only to reduce to a minimum

T. A. Jones; G. K. Maliphant

1958-01-01

498

Negotiating Gender Knowledge.  

ERIC Educational Resources Information Center

The argument at the heart of this paper is a struggle over the construction of the feminist composition teacher. There are traces of her construction in countless unrecorded verbal exchanges; every reference to student fears of professors, to "sensitive" men, to maternal women, to sensible feminists is such a trace. Generally speaking,…

Sullivan, Mary

499

Evaluation of the Technological Characteristics and Bread-Making Quality of Alternative Wheat Cereals in Comparison with Common and Durum Wheat  

Microsoft Academic Search

The growing sensibility toward those foods that are characterized by natural and healthy features has raised the interest toward alternative wheat cereals. This research was carried out to compare the technological characteristics and the bread-making quality of Khorasan wheat, type Kamut and spelt (cv. Forenza), to those of common (cv. Rio) and durum wheat (cv. Norba). The results obtained show

A. Pasqualone; A. R. Piergiovanni; F. Caponio; V. M. Paradiso; C. Summo; R. Simeone

2011-01-01

500

Acquiring Double Images: White Preservice Teachers Locating Themselves in a Raced World  

ERIC Educational Resources Information Center

In this article, Barbara Seidl and Stephen Hancock introduce the concept of a double image, which they argue is central to the development of a mature, antiracist identity for White people. Similar in some ways to Dubois's (1903) concept of "double consciousness," a double image is a sensibility or consciousness that gives White people a deeper…

Seidl, Barbara L.; Hancock, Stephen D.

2011-01-01