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1

Adaptive infrared-image details enhancement technology  

NASA Astrophysics Data System (ADS)

In order to surmount the infrared-image object differentiation difficulty caused by the blurred image edge, a kind of adaptive filter based infrared-image nonlinear edge enhancement technology was proposed in this paper. This technology integrates image nonlinear edge-sharpening and Multi-scale analyze method. The approach of Gauss pyramid structure can enhance detail information by using non-linear algorithms in different scales. The enhanced detail information is then added back to the original image iteratively. While saving the image edge information it can filter image noise and edge distortion caused by edge-sharpening and improve image's clarity and SNR obviously. Gray scale grads was defined based on gray linear increment, image edge enhancement arithmetic can be real time realized, and has been applied in high performance thermal imager. As it is shown in experiments, this algorithm has practicality and potential application value in the field of infrared images contrast enhancement

Guo, Shi-yong; Zhang, Yi; Bai, Lian-fa; Chen, Qian

2014-11-01

2

Where do imaging clinical trials take place?  

Cancer.gov

Imaging clinical trials take place in doctor's offices, cancer centers, other medical centers, community hospitals and clinics, and veterans' and military hospitals in cities and towns across the United States and in other countries. Imaging clinical

3

HUBBLE CAPTURES DETAILED IMAGE OF URANUS' ATMOSPHERE  

NASA Technical Reports Server (NTRS)

Hubble Space Telescope has peered deep into Uranus' atmosphere to see clear and hazy layers created by a mixture of gases. Using infrared filters, Hubble captured detailed features of three layers of Uranus' atmosphere. Hubble's images are different from the ones taken by the Voyager 2 spacecraft, which flew by Uranus 10 years ago. Those images - not taken in infrared light - showed a greenish-blue disk with very little detail. The infrared image allows astronomers to probe the structure of Uranus' atmosphere, which consists of mostly hydrogen with traces of methane. The red around the planet's edge represents a very thin haze at a high altitude. The haze is so thin that it can only be seen by looking at the edges of the disk, and is similar to looking at the edge of a soap bubble. The yellow near the bottom of Uranus is another hazy layer. The deepest layer, the blue near the top of Uranus, shows a clearer atmosphere. Image processing has been used to brighten the rings around Uranus so that astronomers can study their structure. In reality, the rings are as dark as black lava or charcoal. This false color picture was assembled from several exposures taken July 3, 1995 by the Wide Field Planetary Camera-2. CREDIT: Erich Karkoschka (University of Arizona Lunar and Planetary Lab) and NASA

2002-01-01

4

Hubble Captures Detailed Image of Uranus' Atmosphere  

NASA Technical Reports Server (NTRS)

Hubble Space Telescope has peered deep into Uranus' atmosphere to see clear and hazy layers created by a mixture of gases. Using infrared filters, Hubble captured detailed features of three layers of Uranus' atmosphere.

Hubble's images are different from the ones taken by the Voyager 2 spacecraft, which flew by Uranus 10 years ago. Those images - not taken in infrared light - showed a greenish-blue disk with very little detail.

The infrared image allows astronomers to probe the structure of Uranus' atmosphere, which consists of mostly hydrogen with traces of methane. The red around the planet's edge represents a very thin haze at a high altitude. The haze is so thin that it can only be seen by looking at the edges of the disk, and is similar to looking at the edge of a soap bubble. The yellow near the bottom of Uranus is another hazy layer. The deepest layer, the blue near the top of Uranus, shows a clearer atmosphere.

Image processing has been used to brighten the rings around Uranus so that astronomers can study their structure. In reality, the rings are as dark as black lava or charcoal.

This false color picture was assembled from several exposures taken July 3, 1995 by the Wide Field Planetary Camera-2.

The Wide Field/Planetary Camera 2 was developed by the Jet Propulsion Laboratory and managed by the Goddard Spaced Flight Center for NASA's Office of Space Science.

This image and other images and data received from the Hubble Space Telescope are posted on the World Wide Web on the Space Telescope Science Institute home page at URL http://oposite.stsci.edu/pubinfo/

1996-01-01

5

Research on the Hotel Image Based on the Detail Service  

NASA Astrophysics Data System (ADS)

Detail service management, initially developed as marketing programs to enhance customer loyalty, has now become an important part of customer relation strategy. This paper analyzes the critical factors of detail service and its influence on the hotel image. We establish the theoretical model of influencing factors on hotel image and propose corresponding hypotheses. We use applying statistical method to test and verify the above-mentioned hypotheses. This paper provides a foundation for further study of detail service design and planning issues.

Li, Ban; Shenghua, Zheng; He, Yi

6

Contrast-detail comparison between unprocessed and processed CDMAM images  

NASA Astrophysics Data System (ADS)

The purpose of this study is to compare Contrast Detail Curves (CDCs) of unprocessed and processed digital images. Images of a CDMAM (contrast detail for mammography) phantom had been acquired at 29 kV Tungsten-Rhodium anode-filter combination and 100 mAs; unprocessed images were subsequently processed using five clinically available image processing algorithms. Scoring of CDMAM images was then performed using human observers and automatic reading. Five observers conducted a four-alternative forced-choice experiment on a set of four images, for each processing condition. For the automatic analysis of CDMAM images the CDCOM software program was used. Contrast Detail Curves were then computed both for the human and automatic reading by fitting a psychometric curve, after applying a smoothing algorithm (Gaussian filter). For both types of readings the CDCs from processed and unprocessed images were compared. We verified the statistical significance of the difference ? between contrast threshold measurements at 0.1 mm target size (Figure of Merit, FoM), for unprocessed and processed images and for each image processing algorithm separately. The non-parametric bootstrap method was used. No statistical significant difference is found between raw and processed images. This study shows that CDMAM images may not be appropriate in assessing image processing algorithms.

Zanca, F.; Bosmans, H.; Jacobs, J.; Michielsen, K.; Sisini, F.; Nens, J.; Young, K. C.; Shaheen, E.; Jacobs, A.; Marchal, G.

2009-02-01

7

Dynamic range compression and detail enhancement algorithm for infrared image.  

PubMed

For infrared imaging systems with high sampling width applying to the traditional display device or real-time processing system with 8-bit data width, this paper presents a new high dynamic range compression and detail enhancement (DRCDDE) algorithm for infrared images. First, a bilateral filter is adopted to separate the original image into two parts: the base component that contains large-scale signal variations, and the detail component that contains high-frequency information. Then, the operator model for DRC with local-contrast preservation is established, along with a new proposed nonlinear intensity transfer function (ITF) to implement adaptive DRC of the base component. For the detail component, depending on the local statistical characteristics, we set up suitable intensity level extension criteria to enhance the low-contrast details and suppress noise. Finally, the results of the two components are recombined with a weighted coefficient. Experiment results by real infrared data, and quantitative comparison with other well-established methods, show the better performance of the proposed algorithm. Furthermore, the technique could effectively project a dim target while suppressing noise, which is beneficial to image display and target detection. PMID:25321683

Sun, Gang; Liu, Songlin; Wang, Weihua; Chen, Zengping

2014-09-10

8

Hdr Imaging for Feature Detection on Detailed Architectural Scenes  

NASA Astrophysics Data System (ADS)

3D reconstruction relies on accurate detection, extraction, description and matching of image features. This is even truer for complex architectural scenes that pose needs for 3D models of high quality, without any loss of detail in geometry or color. Illumination conditions influence the radiometric quality of images, as standard sensors cannot depict properly a wide range of intensities in the same scene. Indeed, overexposed or underexposed pixels cause irreplaceable information loss and degrade digital representation. Images taken under extreme lighting environments may be thus prohibitive for feature detection/extraction and consequently for matching and 3D reconstruction. High Dynamic Range (HDR) images could be helpful for these operators because they broaden the limits of illumination range that Standard or Low Dynamic Range (SDR/LDR) images can capture and increase in this way the amount of details contained in the image. Experimental results of this study prove this assumption as they examine state of the art feature detectors applied both on standard dynamic range and HDR images.

Kontogianni, G.; Stathopoulou, E. K.; Georgopoulos, A.; Doulamis, A.

2015-02-01

9

Detail enhancement for high-dynamic-range infrared images based on guided image filter  

NASA Astrophysics Data System (ADS)

Detail enhancement and noise reduction play crucial roles in high dynamic range infrared image processing. The main focuses are to compress the high dynamic range images with an effective way to display on lower dynamic range monitors, enhance the perceptibility of small details, and reduce the noises without causing artifacts. In this paper, we propose a new method for detail enhancement and noise reduction of high dynamic range infrared images. We first apply a guided image filter to smooth the input image and separate the image into the base component and the detail component. This process also gives us an adaptive weighting coefficient associated with the details generated by the filter kernel. After the filtering process, we compress the base component into the display range by our modified histogram projection and enhance the detail component using the gain mask of the filter weighting coefficient. At last, we recombine the two parts and quantize the result to 8-bit domain. Our method is significantly better than those based on histogram equalization (HE), and it also has better visual effect than bilateral filter-based methods. Furthermore, our proposed method is much faster, non-approximate and suffers much less gradient flipping artifacts compared to the bilateral filter-based methods because the guided image filter uses the local linear model. We demonstrate that our method is both effective and efficient in a great variety of applications. Experimental verification and detailed analysis are shown in this paper.

Liu, Ning; Zhao, Dongxue

2014-11-01

10

Maia X-ray fluorescence imaging: Capturing detail in complex natural samples  

NASA Astrophysics Data System (ADS)

Motivated by the challenge of capturing complex hierarchical chemical detail in natural material from a wide range of applications, the Maia detector array and integrated realtime processor have been developed to acquire X-ray fluorescence images using X-ray Fluorescence Microscopy (XFM). Maia has been deployed initially at the XFM beamline at the Australian Synchrotron and more recently, demonstrating improvements in energy resolution, at the P06 beamline at Petra III in Germany. Maia captures fine detail in element images beyond 100 M pixels. It combines a large solid-angle annular energy-dispersive 384 detector array, stage encoder and flux counter inputs and dedicated FPGA-based real-time event processor with embedded spectral deconvolution. This enables high definition imaging and enhanced trace element sensitivity to capture complex trace element textures and place them in a detailed spatial context. Maia hardware and software methods provide per pixel correction for dwell, beam flux variation, dead-time and pileup, as well as off-line parallel processing for enhanced throughput. Methods have been developed for real-time display of deconvoluted SXRF element images, depth mapping of rare particles and the acquisition of 3D datasets for fluorescence tomography and XANES imaging using a spectral deconvolution method that tracks beam energy variation.

Ryan, C. G.; Siddons, D. P.; Kirkham, R.; Li, Z. Y.; de Jonge, M. D.; Paterson, D. J.; Kuczewski, A.; Howard, D. L.; Dunn, P. A.; Falkenberg, G.; Boesenberg, U.; De Geronimo, G.; Fisher, L. A.; Halfpenny, A.; Lintern, M. J.; Lombi, E.; Dyl, K. A.; Jensen, M.; Moorhead, G. F.; Cleverley, J. S.; Hough, R. M.; Godel, B.; Barnes, S. J.; James, S. A.; Spiers, K. M.; Alfeld, M.; Wellenreuther, G.; Vukmanovic, Z.; Borg, S.

2014-04-01

11

Fusion of visible and infrared images using saliency analysis and detail preserving based image decomposition  

NASA Astrophysics Data System (ADS)

Image fusion for visible and infrared images is a significant task in image analysis. The target regions in infrared image and abundant detail information in visible image should be both extracted into the fused result. Thus, one should preserve or even enhance the details from original images in fusion process. In this paper, an algorithm using pixel value based saliency detection and detail preserving based image decomposition is proposed. Firstly, the multi-scale decomposition is constructed using weighted least squares filter for original infrared and visible images. Secondly, the pixel value based saliency map is designed and utilized for image fusion in different decomposition level. Finally, the fusion result is reconstructed by synthesizing different scales with synthetic weights. Since the information of original signals can be well preserved and enhanced with saliency extraction and multi scale decomposition process, the fusion algorithm performs robustly and excellently. The proposed approach is compared with other state-of the-art methods on several image sets to verify the effectiveness and robustness.

Zhao, Jufeng; Zhou, Qiang; Chen, Yueting; Feng, Huajun; Xu, Zhihai; Li, Qi

2013-01-01

12

Cloud Imagers Offer New Details on Earth's Health  

NASA Technical Reports Server (NTRS)

A stunning red sunset or purple sunrise is an aesthetic treat with a scientific explanation: The colors are a direct result of the absorption or reflectance of solar radiation by atmospheric aerosols, minute particles (either solid or liquid) in the Earth s atmosphere that occur both naturally and because of human activity. At the beginning or end of the day, the Sun s rays travel farther through the atmosphere to reach an observer s eyes and more green and yellow light is scattered, making the Sun appear red. Sunset and sunrise are especially colorful when the concentration of atmospheric particles is high. This ability of aerosols to absorb and reflect sunlight is not just pretty; it also determines the amount of radiation and heat that reaches the Earth s surface, and can profoundly affect climate. In the atmosphere, aerosols are also important as nuclei for the condensation of water droplets and ice crystals. Clouds with fewer aerosols cannot form as many water droplets (called cloud particles), and consequently, do not scatter light well. In this case, more sunlight reaches the Earth s surface. When aerosol levels in clouds are high, however, more nucleation points can form small liquid water droplets. These smaller cloud particles can reflect up to 90 percent of visible radiation to space, keeping the heat from ever reaching Earth s surface. The tendency for these particles to absorb or reflect the Sun s energy - called extinction by astronomers - depends on a number of factors, including chemical composition and the humidity and temperature in the surrounding air; because cloud particles are so small, they are affected quickly by minute changes in the atmosphere. Because of this sensitivity, atmospheric scientists study cloud particles to anticipate patterns and shifts in climate. Until recently, NASA s study of atmospheric aerosols and cloud particles has been focused primarily on satellite images, which, while granting large-scale atmospheric analysis, limited scientists ability to acquire detailed information about individual particles. Now, experiments with specialized equipment can be flown on standard jets, making it possible for researchers to monitor and more accurately anticipate changes in Earth s atmosphere and weather patterns.

2009-01-01

13

Detailed Images from Europa Point to Slush Below Surface  

NSDL National Science Digital Library

Nine Galileo images of the Jovian moon Europa taken in December of 1997 have recently been released by the National Aeronautics and Space Administration's Jet Propulsion Laboroatory. The images support the theory that slush or liquid water exists below the surface of the satellite. The site contains links to the images (available in several resolutions and formats) and descriptive captions, along with further discussion of the slush/liquid water theory.

1998-01-01

14

Detail Preserving Reproduction of Color Images for Monochromats and Dichromats  

Microsoft Academic Search

printers remain in widespread use. Authors producing documents with color images for any venue must account for the possibility that the color images might be reduced to gray scale before they are viewed. Because conversion to gray scale reduces the number of color dimen-sions, some loss of visual informa-tion is generally unavoidable. Ideally, we can restrict this loss to features

Karl Rasche; Robert Geist; James Westall

2005-01-01

15

Place Pulse : measuring the collaborative image of the city  

E-print Network

This thesis presents Place Pulse, a tool capable of conducting large crowdsourced visual preference surveys. The data collected with Place Pulse was used to create quantitative measures of the perceptions people hold of ...

Salesses, Mark Philip

2012-01-01

16

Detailed study of B037 based on HST images  

Microsoft Academic Search

B037 is of interest because it is both the most luminous and the most highly reddened cluster known in M31. Deep observations and high spatial resolution images with the Advanced Camera for Surveys on the Hubble Space Telescope (HST) first showed that this cluster is crossed by a dust lane. Photometric data in the F606W and F814W filters obtained in

Jun Ma

2011-01-01

17

A detail enhancement and dynamic range adjustment algorithm for high dynamic range images  

NASA Astrophysics Data System (ADS)

Although high dynamic range (HDR) images contain large amounts of information, they have weak texture and low contrast. What's more, these images are difficult to be reproduced on low dynamic range displaying mediums. If much more information is to be acquired when these images are displayed on PCs, some specific transforms, such as compressing the dynamic range, enhancing the portions of little difference in original contrast and highlighting the texture details on the premise of keeping the parts of large contrast, are needed. To this ends, a multi-scale guided filter enhancement algorithm which derives from the single-scale guided filter based on the analysis of non-physical model is proposed in this paper. Firstly, this algorithm decomposes the original HDR images into base image and detail images of different scales, and then it adaptively selects a transform function which acts on the enhanced detail images and original images. By comparing the treatment effects of HDR images and low dynamic range (LDR) images of different scene features, it proves that this algorithm, on the basis of maintaining the hierarchy and texture details of images, not only improves the contrast and enhances the details of images, but also adjusts the dynamic range well. Thus, it is much suitable for human observation or analytical processing of machines.

Xu, Bo; Wang, Huachuang; Liang, Mingtao; Yu, Cong; Hu, Jinlong; Cheng, Hua

2014-08-01

18

Detail preserved fusion of infrared and visual images by using opening and closing based toggle operator  

NASA Astrophysics Data System (ADS)

Image fusion is an effective way to combine the useful information in infrared and visual images. One crucial part of infrared and visual image fusion is extracting the useful image features of the original images, and thus maintaining the image details in the final fusion image well. In this paper, a detail preserving algorithm for infrared and visual image fusion based on the multi-scale toggle operator which uses morphological opening and closing operators as primitives is proposed. The toggle operator using opening and closing as primitives is discussed. Also, extracting image regions using the constructed toggle operator is demonstrated. Then, based on the multi-scale theory, extraction of multi-scale image regions using the constructed toggle operator is demonstrated. After appropriately utilizing the extracted multi-scale image features, the effective fusion result is obtained through the strategy of contrast enlargement. Experimental results show that, because the toggle operator using opening and closing as primitives could extract image features well in the original infrared and visual images, the proposed algorithm performs well for detail preserved fusion of infrared and visual images.

Bai, Xiangzhi; Zhang, Yu

2014-11-01

19

Multi scale detail-preserving denoising method of infrared image via relative total variation  

NASA Astrophysics Data System (ADS)

How to remove the noise in infrared image effectively with detail preserving is a significant but difficult problem in infrared image processing. Various methods have been proposed to obtain good results. However, these algorithms usually cannot distinguish noise and detail efficiently, which leads to smoothing some details in infrared images. Recently a novel local measure called relative total variation (RTV) is proposed to accomplish effective texture removal. RTV measure is combined with a general windowed total variation measure and a novel inherent variation measure to smooth the image texture effectively while preserving the main structure. In this paper, using detail preserving smoothing method via RTV, a multi scale denoising algorithm for infrared image is proposed. Firstly, the infrared image is decomposed into several scales by non-subsampled Contourlet transform (NSCT). NSCT decomposition does not do any down sampling or up sampling, thus the results are not band limited. Secondly?the algorithm applies RTV based detail preserving denoising method for each decomposed layers. Different smoothing parameters are respectively used to adjust the denoising levels in different scales. Finally, various synthetic weights are utilized to different layers to reconstruct the final infrared denosing results. Compared with other infrared denoising approaches, the quantitative comparisons demonstrate that the proposed method could well suppress the noise of infrared image while preserving the edge details effectively. Both visual quality and objective measure results show that this method is efficient and has a good application in infrared image denoising.

Cui, Guang-mang; Feng, Hua-jun; Xu, Zhi-hai; Li, Qi; Chen, Yue-ting

2013-09-01

20

Study on infrared image detail enhancement algorithm based on adaptive lateral inhibition network  

NASA Astrophysics Data System (ADS)

Aiming at traditional lateral inhibition network enhancement algorithm's disadvantages such as poor anti-noise performance and complicated calculation, this paper proposed a novel infrared image detail enhancement algorithm based on adaptive lateral inhibition network. The algorithm can not only reduce noise by adaptively changing lateral inhibition coefficients adaptively according to image scene, but also produce strong contrast between sharp edge and even part. Compared with traditional lateral inhibition network algorithm, the experimental results show that the image details are obviously highlighted, and the image's contrast increases by 1.25 times and the information entropy increases by 1.15 times.

Dai, Shaosheng; Liu, Qin; Li, Pengfei; Liu, Jinsong; Xiang, Haiyan

2015-01-01

21

Meticulously Detailed Eye Model and Its Application to Analysis of Facial Image  

E-print Network

Meticulously Detailed Eye Model and Its Application to Analysis of Facial Image Tsuyoshi Moriyama@cs.cmu.edu Abstract ­ We propose a system that is capable of de- tailed analysis of eye region images including on a generative eye model that defines fine structures and motions of eye. The structure parameters represent

22

Medical image integrity control seeking into the detail of the tampering.  

PubMed

In this paper, we propose a system which aims at verifying integrity of medical images. It not only detects and localizes alterations, but also seeks into the details of the image modification to understand what occurred. For that latter purpose, we developed an image signature which allows our system to approximate modifications by a simple model, a door function of similar dimensions. This signature is partly based on a linear combination of the DCT coefficients of pixel blocks. Protection data is attached to the image by watermarking. Whence, image integrity verification is conducted by comparing this embedded data to the recomputed one from the observed image. Experimental results with malicious image modification illustrate the overall performances of our system. PMID:19162681

Huang, H; Coatrieux, G; Montagner, J; Shu, H Z; Luo, L M; Roux, Ch

2008-01-01

23

Detection of Toxocara eggs in contaminated soil from various public places of Chennai city and detailed correlation with literature.  

PubMed

Toxocarosis is one of the most prevalent human helminthosis caused by larvae of Toxocara canis and Toxocara cati, the most widely distributed nematode parasites of dogs and cats respectively. Soil is considered as the principal source of transmission of Toxocara infection to human beings. With increasing population of dogs and cats, soil contamination with ova or eggs of Toxocara can be detected in public and private locations of city backyards, playgrounds, streets, sand pits and so on, regardless of the season of the year. In this context the present study was carried out to estimate the extent of soil contamination with Toxocara eggs in public parks, playgrounds and few kennels situated in different parts of Chennai city. A total of 105 soil samples from 40 public places and 5 kennels were screened for the presence of parasitic eggs. Toxocara eggs were recovered from 5 soil samples indicating an overall prevalence rate of 4.75 %. Out of 80 samples collected from public places, three samples, one each from Mogappair, My lady park (Periamet) and Madras Veterinary College showed the presence of Toxocara spp. eggs indicating an overall prevalence of 3.75 per cent. Out of the 25 samples from 5 kennels, two samples one each from Tambaram and Thorappakkam kennels were positive for Toxocara eggs with prevalence of 8 per cent. Low prevalence of Toxocara eggs in soil samples of these areas can be attributed to the less population of pups, the carriers of adult worms and the active source of soil contamination. The progress made in ABC (animal birth control) programme carried out by both governmental and non-governmental organizations has contributed to reduction of birth rate in dogs and thereby reduced the chances of soil contamination with Toxocara eggs to a certain extent in Chennai city. PMID:24808647

Thomas, Divyamol; Jeyathilakan, N

2014-06-01

24

Investigating the visual inspection subjectivity on the contrast-detail evaluation in digital mammography images  

NASA Astrophysics Data System (ADS)

A major difficulty in the interpretation of mammographic images is the low contrast and, in the case of early detection of breast cancer, the reduced size of the features of malignancy on findings such as microcalcifications. Furthermore, image assessment is subject to significant reliance of the capacity of observation of the expert that will perform it, compromising the final diagnosis accuracy. Thinking about this aspect, this study evaluated the subjectivity of visual inspection to assess the contrast-detail in mammographic images. For this, we compared the human readings of images generated with the CDMAM phantom performed by four observers, enabling to determining a threshold of contrast visibility in each diameter disks present in the phantom. These thresholds were compared graphically and by statistical measures allowing us to build a strategy for use of contrast and detail (dimensions) as parameters of quality in mammography.

Sousa, Maria A. Z.; Medeiros, Regina B.; Schiabel, Homero

2014-03-01

25

Mass General develops a pill-sized device that provides rapid, detailed imaging of esophageal lining  

Cancer.gov

Physicians may soon have a new way to screen patients for Barrett's esophagus, a precancerous condition usually caused by chronic exposure to stomach acid. Researchers at the Wellman Center for Photomedicine at Massachusetts General Hospital (a component of the Dana-Farber Cancer Institute) have developed an imaging system enclosed in a capsule about the size of a multivitamin pill that creates detailed, microscopic images of the esophageal wall. The system has several advantages over traditional endoscopy.

26

Imaging the internal structure of fluid upflow zones with detailed digital Parasound echosounder surveys  

Microsoft Academic Search

Sites of venting fluids both with continuous and episodic supply often reveal complex surface and internal structures, which are difficult to image and cause problems to transfer results from local sampling towards a structural reconstruction and a quantification of (average) flux rates. Detailed acoustic and seismic surveys would be required to retrieve this information, but also an appropriate environment, where

V. Spiess; L. Zuehlsdorff; H. von Lom-Keil; T. Schwenk

2001-01-01

27

High dynamic range compression and detail enhancement of infrared images in the gradient domain  

NASA Astrophysics Data System (ADS)

To find the trade-off between providing an accurate perception of the global scene and improving the visibility of details without excessively distorting radiometric infrared information, a novel gradient-domain-based visualization method for high dynamic range infrared images is proposed in this study. The proposed method adopts an energy function which includes a data constraint term and a gradient constraint term. In the data constraint term, the classical histogram projection method is used to perform the initial dynamic range compression to obtain the desired pixel values and preserve the global contrast. In the gradient constraint term, the moment matching method is adopted to obtain the normalized image; then a gradient gain factor function is designed to adjust the magnitudes of the normalized image gradients and obtain the desired gradient field. Lastly, the low dynamic range image is solved from the proposed energy function. The final image is obtained by linearly mapping the low dynamic range image to the 8-bit display range. The effectiveness and robustness of the proposed method are analyzed using the infrared images obtained from different operating conditions. Compared with other well-established methods, our method shows a significant performance in terms of dynamic range compression, while enhancing the details and avoiding the common artifacts, such as halo, gradient reversal, hazy or saturation.

Zhang, Feifei; Xie, Wei; Ma, Guorui; Qin, Qianqing

2014-11-01

28

A perceptual evaluation of JPEG 2000 image compression for digital mammography: contrast-detail characteristics.  

PubMed

In this investigation the effect of JPEG 2000 compression on the contrast-detail (CD) characteristics of digital mammography images was studied using an alternative forced choice (AFC) technique. Images of a contrast-detail phantom, acquired using a clinical full-field digital mammography system, were compressed using a commercially available software product (JPEG 2000). Data compression was achieved at ratios of 1:1, 10:1, 20:1, and 30:1 and the images were reviewed by seven observers on a high-resolution display. Psychophysical detection characteristics were first computed by fitting perception data using a maximum-likelihood technique from which CD curves were derived at 50%, 62.5%, and 75% threshold levels. Statistical analysis indicated no significant difference in the perception of mean disk thickness up to 20:1 compression except for disk diameter of 1 mm. All other compression combinations exhibited significant degradation in CD characteristics. PMID:15255520

Suryanarayanan, Sankararaman; Karellas, Andrew; Vedantham, Srinivasan; Waldrop, Sandra M; D'Orsi, Carl J

2004-03-01

29

Impacts of Filtration on Contrast-Detail Detectability of an X-ray Imaging System.  

PubMed

The purpose of this study is to investigate the impacts of added filtration on the contrast-detail detectability of a digital X-ray imaging system for small animal studies. A digital X-ray imaging system specifically designed for small animal studies was used. This system is equipped with a micro X-ray source with a tungsten target and a beryllium window filtration and a CCD-based digital detector. Molybdenum filters of 0 mm, 0.02 mm, and 0.05 mm in thickness were added. The corresponding X-ray spectra and contrast-detail detectabilities were measured using two phantoms of different thicknesses simulating breast tissue under different exposures. The added Mo filters reduced the low-energy as well as the high-energy photons, hence providing a narrowband for imaging quality improvement. In the experiments with a 1.15 cm phantom, the optimal image detectability was observed using 22 kVp and the 0.05 mm Mo filter. With the 2.15 cm phantom, the best detectability was obtained with 22 kVp and the 0.02 mm Mo filter. Our experiments showed that appropriate filtrations could reduce certain low- and high-energy components of X-ray spectra which have limited contributions to image contrast. At the same time, such filtration could improve the contrast-detail detectability, particularly at relatively low kVp and high filtration. Therefore, optimal image quality can be obtained with the same absorbed radiation dose by the subjects when appropriate filtration is used. PMID:23165063

Zhang, Qirong; Rong, John; Wu, Xizeng; Li, Yuhua; Chen, Wei R; Liu, Hong

2006-01-01

30

Placing Three-Dimensional Models in an Uncalibrated Single Image of an Architectural Scene  

E-print Network

calibration objects into the scene. The second sub- problem is how to recover the lighting conditionsPlacing Three-Dimensional Models in an Uncalibrated Single Image of an Architectural Scene Sara, architectural scenes. Ilan Shimshoni was supported in part by The Israeli Ministery of Science grant no. 2104

Tal, Ayellet

31

Placing ThreeDimensional Models in an Uncalibrated Single Image of an Architectural Scene  

E-print Network

to recover the lighting conditions in the scene [4, 14, 10, 18]. The third is how to deal correctlyPlacing Three­Dimensional Models in an Uncalibrated Single Image of an Architectural Scene Sara augmented reality scenes. Our analysis and experiments have shown that errors in the placement

Tal, Ayellet

32

On Detailed Contrast of Biomedical Object in X-ray Dark-Field Imaging  

SciTech Connect

Over the past 10 years, refraction-based X-ray imaging has been studied together with a perspective view to clinical application. X-ray Dark-Field Imaging that utilizes a Laue geometry analyzer has recently been proposed and has the proven ability to depict articular cartilage in an intact human finger. In the current study, we researched detailed image contrast using X-ray Dark-Field Imaging by observing the edge contrast of an acrylic rod as a simple case, and found differences in image contrast between the right and left edges of the rod. This effect could cause undesirable contrast in the thin articular cartilage on the head of the phalanx. To avoid overlapping with this contrast at the articular cartilage, which would lead to a wrong diagnosis, we suggest that a joint surface on which articular cartilage is located should be aligned in the same sense as the scattering vector of the Laue case analyzer crystal. Defects of articular cartilage were successfully detected under this condition. When utilized under appropriate imaging conditions, X-ray Dark-Field Imaging will be a powerful tool for the diagnosis of arthropathy, as minute changes in articular cartilage may be early-stage features of this disease.

Shimao, Daisuke; Mori, Koichi [Department of Radiological Sciences, Ibaraki Prefectural University of Health Sciences, Ami4669-2, Inashiki, Ibaraki, 300-0394 (Japan); Sugiyama, Hiroshi [Photon Factory, institute of Materials Structure Science, High Energy Accelerator Research Organization, Oho 1-1, Tsukuba, Ibaraki 305-0801 (Japan); Department of Photo-Science, School of Advanced Studies, Graduate University for Advanced Studies, International Village, Hayama, Kanagawa 240-0193 (Japan); Kunisada, Toshiyuki [Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine and Dentistry, Shikata-cho 2-5-1 Okayama 700-8558 (Japan); Hyodo, Kazuyuki [Photon Factory, institute of Materials Structure Science, High Energy Accelerator Research Organization, Oho 1-1, Tsukuba, Ibaraki 305-0801 (Japan); Ando, Masami [Photon Factory, institute of Materials Structure Science, High Energy Accelerator Research Organization, Oho 1-1, Tsukuba, Ibaraki 305-0801 (Japan); Department of Photo-Science, School of Advanced Studies, Graduate University for Advanced Studies, International Village, Hayama, Kanagawa 240-0193 (Japan); Research Institute for Science and technology, Tokyo University of Science, Yamasaki 2641, Noda, Chiba 278-8510 (Japan)

2007-01-19

33

MIDA: A Multimodal Imaging-Based Detailed Anatomical Model of the Human Head and Neck.  

PubMed

Computational modeling and simulations are increasingly being used to complement experimental testing for analysis of safety and efficacy of medical devices. Multiple voxel- and surface-based whole- and partial-body models have been proposed in the literature, typically with spatial resolution in the range of 1-2 mm and with 10-50 different tissue types resolved. We have developed a multimodal imaging-based detailed anatomical model of the human head and neck, named "MIDA". The model was obtained by integrating three different magnetic resonance imaging (MRI) modalities, the parameters of which were tailored to enhance the signals of specific tissues: i) structural T1- and T2-weighted MRIs; a specific heavily T2-weighted MRI slab with high nerve contrast optimized to enhance the structures of the ear and eye; ii) magnetic resonance angiography (MRA) data to image the vasculature, and iii) diffusion tensor imaging (DTI) to obtain information on anisotropy and fiber orientation. The unique multimodal high-resolution approach allowed resolving 153 structures, including several distinct muscles, bones and skull layers, arteries and veins, nerves, as well as salivary glands. The model offers also a detailed characterization of eyes, ears, and deep brain structures. A special automatic atlas-based segmentation procedure was adopted to include a detailed map of the nuclei of the thalamus and midbrain into the head model. The suitability of the model to simulations involving different numerical methods, discretization approaches, as well as DTI-based tensorial electrical conductivity, was examined in a case-study, in which the electric field was generated by transcranial alternating current stimulation. The voxel- and the surface-based versions of the models are freely available to the scientific community. PMID:25901747

Iacono, Maria Ida; Neufeld, Esra; Akinnagbe, Esther; Bower, Kelsey; Wolf, Johanna; Vogiatzis Oikonomidis, Ioannis; Sharma, Deepika; Lloyd, Bryn; Wilm, Bertram J; Wyss, Michael; Pruessmann, Klaas P; Jakab, Andras; Makris, Nikos; Cohen, Ethan D; Kuster, Niels; Kainz, Wolfgang; Angelone, Leonardo M

2015-01-01

34

A novel material detection algorithm based on 2D GMM-based power density function and image detail addition scheme in dual energy X-ray images.  

PubMed

Material detection is a vital need in dual energy X-ray luggage inspection systems at security of airport and strategic places. In this paper, a novel material detection algorithm based on statistical trainable models using 2-Dimensional power density function (PDF) of three material categories in dual energy X-ray images is proposed. In this algorithm, the PDF of each material category as a statistical model is estimated from transmission measurement values of low and high energy X-ray images by Gaussian Mixture Models (GMM). Material label of each pixel of object is determined based on dependency probability of its transmission measurement values in the low and high energy to PDF of three material categories (metallic, organic and mixed materials). The performance of material detection algorithm is improved by a maximum voting scheme in a neighborhood of image as a post-processing stage. Using two background removing and denoising stages, high and low energy X-ray images are enhanced as a pre-processing procedure. For improving the discrimination capability of the proposed material detection algorithm, the details of the low and high energy X-ray images are added to constructed color image which includes three colors (orange, blue and green) for representing the organic, metallic and mixed materials. The proposed algorithm is evaluated on real images that had been captured from a commercial dual energy X-ray luggage inspection system. The obtained results show that the proposed algorithm is effective and operative in detection of the metallic, organic and mixed materials with acceptable accuracy. PMID:22635176

Pourghassem, Hossein

2012-01-01

35

Simultaneous cellular-resolution optical perturbation and imaging of place cell firing fields.  

PubMed

Linking neural microcircuit function to emergent properties of the mammalian brain requires fine-scale manipulation and measurement of neural activity during behavior, where each neuron's coding and dynamics can be characterized. We developed an optical method for simultaneous cellular-resolution stimulation and large-scale recording of neuronal activity in behaving mice. Dual-wavelength two-photon excitation allowed largely independent functional imaging with a green fluorescent calcium sensor (GCaMP3, ? = 920 ± 6 nm) and single-neuron photostimulation with a red-shifted optogenetic probe (C1V1, ? = 1,064 ± 6 nm) in neurons coexpressing the two proteins. We manipulated task-modulated activity in individual hippocampal CA1 place cells during spatial navigation in a virtual reality environment, mimicking natural place-field activity, or 'biasing', to reveal subthreshold dynamics. Notably, manipulating single place-cell activity also affected activity in small groups of other place cells that were active around the same time in the task, suggesting a functional role for local place cell interactions in shaping firing fields. PMID:25402854

Rickgauer, John Peter; Deisseroth, Karl; Tank, David W

2014-12-01

36

The extreme UV imager of solar orbiter: from detailed design to flight model  

NASA Astrophysics Data System (ADS)

The Extreme Ultraviolet Imager (EUI) on-board the Solar Orbiter mission will provide full-sun and high-resolution image sequences of the solar atmosphere at selected spectral emission lines in the extreme and vacuum ultraviolet. After the breadboarding and prototyping activities that focused on key technologies, the EUI project has completed the design phase and has started the final manufacturing of the instrument and its validation. The EUI instrument has successfully passed its Critical Design Review (CDR). The process validated the detailed design of the Optical Bench unit and of its sub-units (entrance baffles, doors, mirrors, camera, and filter wheel mechanisms), and of the Electronic Box unit. In the same timeframe, the Structural and Thermal Model (STM) test campaign of the two units have been achieved, and allowed to correlate the associated mathematical models. The lessons learned from STM and the detailed design served as input to release the manufacturing of the Qualification Model (QM) and of the Flight Model (FM). The QM will serve to qualify the instrument units and sub-units, in advance of the FM acceptance tests and final on-ground calibration.

Halain, J.-P.; Rochus, P.; Renotte, E.; Auchère, F.; Berghmans, D.; Harra, L.; Schühle, U.; Schmutz, W.; Zhukov, A.; Aznar Cuadrado, R.; Delmotte, F.; Dumesnil, C.; Gyo, M.; Kennedy, T.; Mercier, R.; Verbeeck, F.; Thome, M.; Heerlein, K.; Hermans, A.; Jacques, L.; Mazzoli, A.; Meining, S.; Rossi, L.; Tandy, J.; Smith, P.; Winter, B.

2014-07-01

37

Functional imaging of hippocampal place cells at cellular resolution during virtual navigation.  

PubMed

Spatial navigation is often used as a behavioral task in studies of the neuronal circuits that underlie cognition, learning and memory in rodents. The combination of in vivo microscopy with genetically encoded indicators has provided an important new tool for studying neuronal circuits, but has been technically difficult to apply during navigation. Here we describe methods for imaging the activity of neurons in the CA1 region of the hippocampus with subcellular resolution in behaving mice. Neurons that expressed the genetically encoded calcium indicator GCaMP3 were imaged through a chronic hippocampal window. Head-restrained mice performed spatial behaviors in a setup combining a virtual reality system and a custom-built two-photon microscope. We optically identified populations of place cells and determined the correlation between the location of their place fields in the virtual environment and their anatomical location in the local circuit. The combination of virtual reality and high-resolution functional imaging should allow a new generation of studies to investigate neuronal circuit dynamics during behavior. PMID:20890294

Dombeck, Daniel A; Harvey, Christopher D; Tian, Lin; Looger, Loren L; Tank, David W

2010-11-01

38

Processing of Uav Based Range Imaging Data to Generate Detailed Elevation Models of Complex Natural Structures  

NASA Astrophysics Data System (ADS)

Unmanned Aerial Vehicles (UAVs) are more and more used in civil areas like geomatics. Autonomous navigated platforms have a great flexibility in flying and manoeuvring in complex environments to collect remote sensing data. In contrast to standard technologies such as aerial manned platforms (airplanes and helicopters) UAVs are able to fly closer to the object and in small-scale areas of high-risk situations such as landslides, volcano and earthquake areas and floodplains. Thus, UAVs are sometimes the only practical alternative in areas where access is difficult and where no manned aircraft is available or even no flight permission is given. Furthermore, compared to terrestrial platforms, UAVs are not limited to specific view directions and could overcome occlusions from trees, houses and terrain structures. Equipped with image sensors and/or laser scanners they are able to provide elevation models, rectified images, textured 3D-models and maps. In this paper we will describe a UAV platform, which can carry a range imaging (RIM) camera including power supply and data storage for the detailed mapping and monitoring of complex structures, such as alpine riverbed areas. The UAV platform NEO from Swiss UAV was equipped with the RIM camera CamCube 2.0 by PMD Technologies GmbH to capture the surface structures. Its navigation system includes an autopilot. To validate the UAV-trajectory a 360° prism was installed and tracked by a total station. Within the paper a workflow for the processing of UAV-RIM data is proposed, which is based on the processing of differential GNSS data in combination with the acquired range images. Subsequently, the obtained results for the trajectory are compared and verified with a track of a UAV (Falcon 8, Ascending Technologies) carried out with a total station simultaneously to the GNSS data acquisition. The results showed that the UAV's position using differential GNSS could be determined in the centimetre to the decimetre level. The RIM data indicated a high noise level in the measured distance image, due to the vibrations caused by the flight system. Multi-image processing reduced the noise level of the distance image. The produced elevation models from a test area show the high potential of the proposed method for complex structures such as riverbeds.

Kohoutek, T. K.; Eisenbeiss, H.

2012-07-01

39

Investigation on improved infrared image detail enhancement algorithm based on adaptive histogram statistical stretching and gradient filtering  

NASA Astrophysics Data System (ADS)

Duo to infrared image with low contrast, big noise and unclear visual effect, target is very difficult to observed and identified. This paper presents an improved infrared image detail enhancement algorithm based on adaptive histogram statistical stretching and gradient filtering (AHSS-GF). Based on the fact that the human eyes are very sensitive to the edges and lines, the author proposed to extract the details and textures by using the gradient filtering. New histogram could be acquired by calculating the sum of original histogram based on fixed window. With the minimum value for cut-off point, author carried on histogram statistical stretching. After the proper weights given to the details and background, the detail-enhanced results could be acquired finally. The results indicate image contrast could be improved and the details and textures could be enhanced effectively as well.

Zeng, Bangze; Zhu, Youpan; Li, Zemin; Hu, Dechao; Luo, Lin; Zhao, Deli; Huang, Juan

2014-11-01

40

Detailed imaging of flowing structures at depth using microseismicity: a tool for site investigation?  

NASA Astrophysics Data System (ADS)

Field evidence shows that faults and fractures can act as focused pathways or barriers for fluid migration. This is an important property for modern engineering problems, e.g., CO2 sequestration, geological radioactive waste disposal, geothermal energy exploitation, land reclamation and remediation. For such applications the detailed characterization of the location, orientation and hydraulic properties of existing fractures is necessary. These investigations are expensive, requiring the hire of expensive equipment (excavator or drill rigs), which incur standing charges when not in use. In addition, they only provide information for discrete sample 'windows'. Non-intrusive methods have the ability to gather information across an entire area. Methods including electrical resistivity/conductivity and ground penetrating radar (GRP), have been used as tools for site investigations. Their imaging ability is often restricted due to unfavourable on-site conditions e.g. GRP is not useful in cases where a layer of clay or reinforced concrete is present. Our research has shown that high quality seismic data can be successfully used in the detailed imaging of sub-surface structures at depth; using induced microseismicity data recorded beneath the Açu reservoir in Brazil we identified orientations and values of average permeability of open shear fractures at depths up to 2.5km. Could microseismicity also provide information on the fracture width in terms of stress drops? First results from numerical simulations showed that higher stress drop values correspond to narrower fractures. These results were consistent with geological field observations. This study highlights the great potential of using microseismicity data as a supplementary tool for site investigation. Individual large-scale shear fractures in large rock volumes cannot currently be identified by any other geophysical dataset. The resolution of the method is restricted by the detection threshold of the local seismic networks used for the monitoring of the seismic activity. However, it could be significantly increased if complete seismic data sets were available using high-sensitivity seismographs e.g. nanoseismic monitoring.

Pytharouli, S.; Lunn, R. J.; Shipton, Z. K.

2011-12-01

41

Integration of Point Clouds Originated from Laser Scaner and Photogrammetric Images for Visualization of Complex Details of Historical Buildings  

NASA Astrophysics Data System (ADS)

Three-dimensional (3D) models of historical buildings are created for documentation and virtual realization of them. Laser scanning and photogrammetry are extensively used to perform for these aims. The selection of the method that will be used in threedimensional modelling study depends on the scale and shape of the object, and also applicability of the method. Laser scanners are high cost instruments. However, the cameras are low cost instruments. The off-the-shelf cameras are used for taking the photogrammetric images. The camera is imaging the object details by carrying on hand while the laser scanner makes ground based measurement. Laser scanner collect high density spatial data in a short time from the measurement area. On the other hand, image based 3D (IB3D) measurement uses images to create 3D point cloud data. The image matching and the creation of the point cloud can be done automatically. Historical buildings include more complex details. Thus, all details cannot be measured by terrestrial laser scanner (TLS) due to the blocking the details with each others. Especially, the artefacts which have complex shapes cannot be measured in full details. They cause occlusion on the point cloud model. However it is possible to record photogrammetric images and creation IB3D point cloud for these areas. Thus the occlusion free 3D model is created by the integration of point clouds originated from the TLS and photogrammetric images. In this study, usability of laser scanning in conjunction with image based modelling for creation occlusion free three-dimensional point cloud model of historical building was evaluated. The IB3D point cloud was created in the areas that could not been measured by TLS. Then laser scanning and IB3D point clouds were integrated in the common coordinate system. The registration point clouds were performed with the iterative closest point (ICP) and georeferencing methods. Accuracy of the registration was evaluated by convergency and its standard deviations for the ICP and residuals on the control points for the georeferencing method.

Altuntas, C.

2015-02-01

42

Enceladus Close Up: New Details Recovered from Cassini ISS Boresight-Drag Images  

NASA Astrophysics Data System (ADS)

Among the many Cassini ISS (Imaging Science Subsystem) images of Enceladus are a few severely-underexposed, motion-blurred images that were acquired on “boresight-drag” events on the closest flybys. During boresight-drags, ISS is statically aimed at a point that intercepts the predicted path of Enceladus’ across the sky. The ISS Narrow angle (NAC) and Wide Angle (WAC) cameras are repeatedly triggered together in hope of serendipitously capturing a close-up “BOTSIM” image-pair of the body as it passes. Because the events are so fast, the surface footprints and lighting geometry cannot be predicted in advance - a cascade of images are just quickly shuttered at the minimum 5 msec exposure. On each of four boresight-drags, surface images were captured. However, the two most recent (image-pair W/N1669812043 in November 2010 and W/N1713106405 in April 2012, respectively) were poorly illuminated -- three of four images only in Saturnshine. Despite their poor signal quality, they are rare images of Enceladus’ surface obtained with spatial resolutions better than a few meters/pixel. Careful use of Fourier filtering and spatial reconstruction techniques was needed to eliminate image noise and residual electronic banding that was not removed during routine radiometric calibration of the images. Fourier motion debluring techniques were then applied to correct for significant motion smear. Images W/N1669812043 (55.1°N, 20.2°W) are in old cratered terrain, inside a prominent 23 km sized impact crater along the rise of its updomed floor. They show a system of parallel ~250m wide mesas trending around the dome’s circumference. Smooth detritus inundates mesas and valleys near the dome summit and the mesa surfaces are otherwise mantled with regolith that is finely cratered down to the ~2 m/pixel NAC resolution limit. W/N1713106405 (66.9°S, 29.5°W) show the chaotically fractured margin of the active South Polar Terrain - an area divided by parallel ridges and troughs with relatively smooth flanks and valley floors. Quasi-linear arrangements of ice-blocks, each block tens of meters or smaller, are found mostly near ridge-tops.

Helfenstein, Paul; Thomas, P. C.; Veverka, J.

2013-10-01

43

Visual Tour Based on Panaromic Images for Indoor Places in Campus  

NASA Astrophysics Data System (ADS)

In this paper, it is aimed to create a visual tour based on panoramic images for Civil Engineering Faculty in Yildiz Technical University. For this purpose, panoramic images should be obtained. Thus, photos taken with a tripod to have the same angle of view in every photo and panoramic images were created with stitching photos. Two different cameras with different focal length were used. With the panoramic images, visual tour with navigation tools created.

Bakirman, T.

2012-07-01

44

Center for Imaging Science Job Opportunities www.cis.rit.edu/jobs The CIS office does not have any more details on the external postings listed here.  

E-print Network

, and interfacing with C++ code. Knowledge of other imaging packages (ImagePro Plus, PhotoShop, etc.) is a plusCenter for Imaging Science Job Opportunities www.cis.rit.edu/jobs The CIS office does not have any more details on the external postings listed here. Job Description: Image Analysis Scientist Canfield

Zanibbi, Richard

45

IMAGEability of place : experimental form and public space in an exploratorium for art and interactive telecommunications  

E-print Network

In the advent of the intelligent age, the focal point of communal activity becomes the civic forum of information exchange. The interface of art, information and communication to the civic arena anticipates a public place ...

Sung, Lillian T. (Lillian Thailian)

1994-01-01

46

A detailed receiver function image of the upper mantle discontinuities in the Japan subduction zone  

Microsoft Academic Search

We have imaged the upper mantle discontinuities in a 30×20° large region at the active continental margin of the Japan subduction zone and neighboring areas, using P-to-S converted phases from teleseismic records of permanent broadband stations. The 410 km discontinuity is detected within ±10 km of its global average position. An interesting exception in its observation is a gap near

X. Li; S. V. Sobolev; R. Kind; X. Yuan; Ch. Estabrook

2000-01-01

47

Detailed seismic imaging of a chemical munition dumpsite in the Bornholm Basin, south-western Baltic  

Microsoft Academic Search

Very high resolution seismic investigations were carried out over a munition dumpsite in the Bornholm Basin, south-western\\u000a Baltic Sea. After WW2 over 32,000 tons of chemical weapons were dumped in this area. The aim of the investigations was to\\u000a image the internal structure of the dumpsite and to identify possible natural hazards with regard to the dumped war material.\\u000a Two geophysical

Tine Missiaen; Lieselot Noppe

2010-01-01

48

Final Results from Mexnext-I: Analysis of detailed aerodynamic measurements on a 4.5 m diameter rotor placed in the large German Dutch Wind Tunnel DNW  

NASA Astrophysics Data System (ADS)

The paper presents the final results from the first phase of IEA Task 29 'Mexnext'. Mexnext was a joint project in which 20 parties from 11 different countries cooperated. The main aim of Mexnext was to analyse the wind tunnel measurements which have been taken in the EU project 'MEXICO'. In the MEXICO project 10 institutes from 6 countries cooperated in doing experiments on an instrumented, 3 bladed wind turbine of 4.5 m diameter placed in the 9.5 by 9.5 m2 open section of the Large Low-speed Facility (LLF) of DNW in the Netherlands. Pressure distributions on the blades were obtained from 148 Kulite pressure sensors, distributed over 5 sections at 25, 35, 60, 82 and 92 % radial position respectively. Blade loads were monitored through two strain-gauge bridges at each blade root. Most interesting however are the extensive PIV flow field measurements, which have been taken simultaneously with the pressure and load measurements. As a result of the international collaboration within this task a very thorough analysis of the data could be carried out and a large number of codes were validated not only in terms of loads but also in terms of underlying flow field. The paper will present several results from Mexnext-I, i.e. validation results and conclusion on modelling deficiencies and directions for model improvement. The future plans of the Mexnext consortium are also briefly discussed. Amongst these are Mexnext-II, a project in which also aerodynamic measurements other than MEXICO are included, and 'New MEXICO' in which additional measurement on the MEXICO model are performed.

Schepers, J. G.; Boorsma, K.; Munduate, X.

2014-12-01

49

Buck family pedigree (detail), still imageSite: DNA Interactive (www.dnai.org)  

NSDL National Science Digital Library

DNAi location: Chronicle>Trial of Carrie Buck>trialDetail of Harry Laughlin's pedigree of the Buck famiiy. Although it was a bona fide medical diagnosis in its day, "feeblemindedness" had virtually no clinical meaning and is no longer used in medical terminology. Many people who were classified as feebleminded would now be called mildly retarded, learning disabled, or simply underachievers. Contrary to the evidence presented at her trial, Carrie appears to have had no serious mental problem, and she was not promiscuous. Vivian's conception was the result of Carrie's rape by Clarence Garland, the nephew of her foster parents. Carrie, like many unwed mothers of that time, was institutionalized to prevent shame to the family.

2008-10-06

50

Detailed experimental characterization of reflectance spectra of Sasakia charonda butterfly using multispectral optical imaging  

NASA Astrophysics Data System (ADS)

A multispectral acquisition system to examine the bidirectional reflectance distribution function of structurally colored biological materials in the visible range is presented. We focus on the purple-blue and white-pearl wing scales of the male butterfly Sasakia charonda. Multispectral imaging was done by changing the illumination angular position around the sample as well as that of the specimen around the multispectral sensor axis. Reflectance spectra were transformed to color coordinates and visualized in different color spaces. Spectral analysis shows distinct iridescent patterns in purple-blue and white-pearl scales. Colorimetric analysis indicates that purple-blue scales enhance blue coloring and exhibit higher color saturation. Principal component analysis reveals that the number of principal components that account for more than 99% of reflectance variability was higher in white-pearl scales. This suggests a higher spectral complexity in their spatial color pattern formation. Reconstruction of reflectance spectra from the principal components is discussed. We conclude that multispectral imaging provides new insights into spatial reflectance mapping that result from the combination of structural colorations and variable amounts of absorption pigments.

Medina, José M.; Díaz, José A.; Valero, Eva; Nieves, Juan L.; Vukusic, Pete

2014-03-01

51

Visual acuity-adaptive detail enhancement and shadow noise reduction for iCAM06-based HDR imaging  

NASA Astrophysics Data System (ADS)

An image appearance model is extremely useful for high-dynamic-range image (HDRI) rendering. However, the base-detail separation and the tone compression process for tonal control cause degradations in image quality. This study focuses on the de-saturation, reduced contrast, and noise problems in dark regions that occur through HDRI-rendering. First, we discuss de-saturation compensation using a bilateral filter that is based on the visual acuity characteristics of various illuminant levels. The edge stop function of the bilateral filter in iCAM06 is adaptively modified according to the illuminant information. Second, to reduce the magnified noise in the dark regions caused by tone mapping, the shadow regions are detected by an object's intensity and illuminant level, and then the noise of the detected regions is reduced using a luminance-adaptive coring function. Finally, we confirmed the enhanced color saturation, image contrast, and reduced noise in shadow regions through the application of the proposed methods.

Lee, Geun-Young; Lee, Sung-Hak; Kwon, Hyuk-Ju; Sohng, Kyu-Ik

2015-02-01

52

TOPICAL REVIEW: Small animal SPECT and its place in the matrix of molecular imaging technologies  

NASA Astrophysics Data System (ADS)

Molecular imaging refers to the use of non-invasive imaging techniques to detect signals that originate from molecules, often in the form of an injected tracer, and observe their interaction with a specific cellular target in vivo. Differences in the underlying physical principles of these measurement techniques determine the sensitivity, specificity and length of possible observation of the signal, characteristics that have to be traded off according to the biological question under study. Here, we describe the specific characteristics of single photon emission computed tomography (SPECT) relative to other molecular imaging technologies. SPECT is based on the tracer principle and external radiation detection. It is capable of measuring the biodistribution of minute (<10-10 molar) concentrations of radio-labelled biomolecules in vivo with sub-millimetre resolution and quantifying the molecular kinetic processes in which they participate. Like some other imaging techniques, SPECT was originally developed for human use and was subsequently adapted for imaging small laboratory animals at high spatial resolution for basic and translational research. Its unique capabilities include (i) the ability to image endogenous ligands such as peptides and antibodies due to the relative ease of labelling these molecules with technetium or iodine, (ii) the ability to measure relatively slow kinetic processes (compared with positron emission tomography, for example) due to the long half-life of the commonly used isotopes and (iii) the ability to probe two or more molecular pathways simultaneously by detecting isotopes with different emission energies. In this paper, we review the technology developments and design tradeoffs that led to the current state-of-the-art in SPECT small animal scanning and describe the position SPECT occupies within the matrix of molecular imaging technologies.

Meikle, Steven R.; Kench, Peter; Kassiou, Michael; Banati, Richard B.

2005-11-01

53

Image quality assessment in digital mammography: part II. NPWE as a validated alternative for contrast detail analysis.  

PubMed

Assessment of image quality for digital x-ray mammography systems used in European screening programs relies mainly on contrast-detail CDMAM phantom scoring and requires the acquisition and analysis of many images in order to reduce variability in threshold detectability. Part II of this study proposes an alternative method based on the detectability index (d') calculated for a non-prewhitened model observer with an eye filter (NPWE). The detectability index was calculated from the normalized noise power spectrum and image contrast, both measured from an image of a 5 cm poly(methyl methacrylate) phantom containing a 0.2 mm thick aluminium square, and the pre-sampling modulation transfer function. This was performed as a function of air kerma at the detector for 11 different digital mammography systems. These calculated d' values were compared against threshold gold thickness (T) results measured with the CDMAM test object and against derived theoretical relationships. A simple relationship was found between T and d', as a function of detector air kerma; a linear relationship was found between d' and contrast-to-noise ratio. The values of threshold thickness used to specify acceptable performance in the European Guidelines for 0.10 and 0.25 mm diameter discs were equivalent to threshold calculated detectability indices of 1.05 and 6.30, respectively. The NPWE method is a validated alternative to CDMAM scoring for use in the image quality specification, quality control and optimization of digital x-ray systems for screening mammography. PMID:21701050

Monnin, P; Marshall, N W; Bosmans, H; Bochud, F O; Verdun, F R

2011-07-21

54

Combining Seismic Arrays to Image Detailed Rupture Properties of Large Earthquakes: Evidence for Frequent Triggering of Multiple Faults  

NASA Astrophysics Data System (ADS)

Imaging detailed rupture characteristics using the back-projection method, which time-reverses waveforms to their source, has become feasible in recent years due to the availability of data from large aperture arrays with dense station coverage. In contrast to conventional techniques, this method can quickly and indiscriminately provide the spatio-temporal details of rupture propagation. Though many studies have utilized the back-projection method with a single regional array, the limited azimuthal coverage often leads to skewed resolution. In this study, we enhance the imaging power by combining data from two arrays, i.e., the Transportable Array (TA) in the United States and the High Sensitivity Seismographic Network (Hi-net) in Japan. This approach suppresses artifacts and achieves good lateral resolution by improving distance and azimuthal coverage while maintaining waveform coherence. We investigate four large events using this method: the August 15, 2007 Pisco, Peru earthquake, the September 12, 2007 Southern Sumatra earthquake, the September 29, 2009 Samoa Islands earthquake, and the February 27, 2010 Maule, Chile earthquake. In every case, except the Samoa Islands event, the distance of one of the arrays from the epicenter requires us to use the direct P wave and core phases in the back-projection. One of the common features of the rupture characteristics obtained from the back-projection analysis is spatio-temporal rupture discontinuities, or discrete subevents. Both the size of the gaps and the timing between subevents suggest that multiple segments are involved during giant earthquakes, and that they trigger slip on other faults. For example, the 2009 Samoa Islands event began with a rupture propagating north for about 15 seconds followed by a much larger rupture that originated 30 km northwest of the terminus of the first event and propagated back toward the southeast. The involvement of multiple rupture segments with different slip characteristics suggest that large earthquakes are more complex compared to smaller events.

Ishii, M.; Kiser, E.

2010-12-01

55

The Google guys teamed up with NASA researchers (and several other consortiums) to create one of the most detailed online scientific map and image archives ever made of  

E-print Network

/ · To begin your journey to Mars, go to the top tool bar and click on the planet icon, and select "Mars" from of the most detailed online scientific map and image archives ever made of Mars ­ Google Mars. For this lab, you will explore the data and images available on Google Mars, both in 2-D and in 3-D. The 2-D version

Smith-Konter, Bridget

56

Image quality performance of liquid crystal display systems: Influence of display resolution, magnification and window settings on contrast-detail detection  

Microsoft Academic Search

The aim of this study was to investigate the combined effects of liquid crystal display (LCD) resolution, image magnification and window\\/level adjustment on the low-contrast performance in soft-copy image interpretation in digital radiography and digital mammography. In addition, the effect of a new LCD noise reduction mechanism on the low-contrast detectability was studied.Digital radiographs and mammograms of two dedicated contrast-detail

Klaus Bacher; Peter Smeets; An De Hauwere; Tony Voet; Philippe Duyck; Koenraad Verstraete; Hubert Thierens

2006-01-01

57

Place Value  

NSDL National Science Digital Library

These activites cover place value of ones, tens, hundreds and thousands. Please complete the games in order. You must finish each game before going on to the next one. Game #1: Dinosaur Numbers (place value) Game #2: Shark Numbers (place value) Game #3: Place Value Golf (harder) ...

Mrs. Christian

2007-03-21

58

Detailed effects of scattering and absorption by haze and aerosols in the atmosphere on the average point spread function of an imaging system.  

PubMed

The Earth's atmosphere has significant effects on the propagation of electromagnetic (EM) radiation and accordingly degrades the performance of electro-optical systems. These effects are attributed to atmospheric turbulence and to absorption and scattering of EM waves by atmospheric molecules and aerosols. In this paper we develop a detailed model of the effects of absorption and scattering on the optical radiation propagating from the object plane to an imaging system based on the classical theory of EM scattering. Scattering has the effect of de-correlating the light leaving the target from the unscattered light reaching the imaging system, and scattering has the effect of broadening the angle at which the scattered light arrives at the receiver compared to the unscattered light. Absorption has the effect of reducing the amount of power available for the image. Both of these effects depend upon the atmospheric species present, their EM properties, and wavelength. We use this detailed model to compute the average point spread function (PSF) of an imaging system that properly accounts for the effects of the diffraction and scattering, and the appropriate optical power level of both the unscattered and the scattered radiation arriving at the pupil of the imaging system. Since the scattered radiation is temporally and spatially de-correlated from the unscattered radiation, we model the effects of the unscattered radiation and the radiation scattered from the various species as additive in the image plane. The key result of this study is the significant effect of atmospheric scattering on the contrast and spatial resolution of images acquired by imaging systems, due to the increased level of the scattered radiation PSF and the reduced level of the direct radiation PSF, upon increasing the atmospheric optical depth. PMID:24977370

Hanafy, Mohamed E; Roggemann, Michael C; Guney, Durdu O

2014-06-01

59

High-resolution single-molecule recognition imaging of the molecular details of ricin-aptamer interaction  

Technology Transfer Automated Retrieval System (TEKTRAN)

The molecular details of DNA aptamer-ricin interactions were investigated. The toxic protein ricin molecules were immobilized on Au(111) surface using N-hydroxysuccinimide (NHS) ester to specifically react with lysine residues located on the ricin B chains. A single ricin molecule was visualized in ...

60

The detailed assessment of left and right ventricular functions by tissue Doppler imaging in patients with familial Mediterranean fever  

Microsoft Academic Search

In the contrary to other rheumatologic disorders, there have been limited numbers of studies investigating the cardiac involvement\\u000a in patients with familial Mediterranean fever (FMF), although the disease may carry a potential for cardiovascular disorders\\u000a because of sustained inflammation during its course. In the present study, we used high usefulness tissue Doppler echocardiography\\u000a for detailed analysis of cardiac changes in

Yusuf Tavil; Kemal Üreten; Mehmet Akif Öztürk; Nihat ?en; Mehmet Güngör Kaya; Mustafa Cemri; Atiye Çengel

2008-01-01

61

Flooded areas assessment by integrating hydraulic flood analysis to the detailed flood maps generated with a multi-temporal image segmentation approach using Cosmo-Skymed  

NASA Astrophysics Data System (ADS)

The support of Earth Observation Systems to flood monitoring and damage assessment has been evaluated by integrating skills and knowledge of hydrologists and experts on image processing. Detailed flood maps are generated from the analysis of images pairs acquired by Cosmo-Skymed on the same area at different times. The adopted methodology applies image pre-processing and segmentation techniques with a multi-temporal approach. After noise reduction by despeckling, the user manually localizes few water points in one image. From selected points, segmentation distinguishes the classes of flood, permanent-water and no-change areas. Then, an anisotropic scanning analyzes the images to define its content. The resulting connected regions are converted into vectors to be entered as constraint for a Physically based 2-D hydraulic flood model. The model recursively varies the unknown boundary conditions to match at best the areas extracted from Cosmo-Skymed. The product is a hydraulic consistent report of the flooded area including information on water depth and velocities. By combining these information with vulnerability maps, extracted from optical satellite images with a supervised approach, an estimation of the damage is provided. The reported results refer to the monitoring of the flood event occurred in the Scutari Lake area (Albania, January 2010).

Boni, G.; Angiati, E.; Candela, L.; Dellepiane, S.; Macchiavello, G.; Rudari, R.

2010-10-01

62

Computed tomography:the details.  

SciTech Connect

Computed Tomography (CT) is a well established technique, particularly in medical imaging, but also applied in Synthetic Aperture Radar (SAR) imaging. Basic CT imaging via back-projection is treated in many texts, but often with insufficient detail to appreciate subtleties such as the role of non-uniform sampling densities. Herein are given some details often neglected in many texts.

Doerry, Armin Walter

2007-07-01

63

Detailed morphological characterisation of Hendra virus infection of different cell types using super-resolution and conventional imaging.  

PubMed

BackgroundHendra virus (HeV) is a pleomorphic virus belonging to the Paramyxovirus family. Our long-term aim is to understand the process of assembly of HeV virions. As a first step, we sought to determine the most appropriate cell culture system with which to study this process, and then to use this model to define the morphology of the virus and identify the site of assembly by imaging key virus encoded proteins in infected cells.MethodsA range of primary cells and immortalised cell lines were infected with HeV, fixed at various time points post-infection, labelled for HeV proteins and imaged by confocal, super-resolution and transmission electron microscopy.ResultsSignificant differences were noted in viral protein distribution depending on the infected cell type. At 8 hpi HeV G protein was detected in the endoplasmic reticulum and M protein was seen predominantly in the nucleus in all cells tested. At 18 hpi, HeV-infected Vero cells showed M and G proteins throughout the cell and in transmission electron microscope (TEM) sections, in pleomorphic virus-like structures. In HeV infected MDBK, A549 and HeLa cells, HeV M protein was seen predominantly in the nucleus with G protein at the membrane. In HeV-infected primary bovine and porcine aortic endothelial cells and two bat-derived cell lines, HeV M protein was not seen at such high levels in the nucleus at any time point tested (8,12, 18, 24, 48 hpi) but was observed predominantly at the cell surface in a punctate pattern co-localised with G protein. These HeV M and G positive structures were confirmed as round HeV virions by TEM and super-resolution (SR) microscopy. SR imaging demonstrated for the first time sub-virion imaging of paramyxovirus proteins and the respective localisation of HeV G, M and N proteins within virions.ConclusionThese findings provide novel insights into the structure of HeV and show that for HeV imaging studies the choice of tissue culture cells may affect the experimental results. The results also indicate that HeV should be considered a predominantly round virus with a mean diameter of approximately 280 nm by TEM and 310 nm by SR imaging. PMID:25428656

Monaghan, Paul; Green, Diane; Pallister, Jackie; Klein, Reuben; White, John; Williams, Catherine; McMillan, Paul; Tilley, Leann; Lampe, Marko; Hawes, Pippa; Wang, Lin-Fa

2014-11-27

64

Resolving the surface details on Venus in the balloon- or lander-borne images with a computer modeling method  

NASA Astrophysics Data System (ADS)

Due to the presence of opaque clouds at high altitudes, it is difficult to survey the surface of Venus in the optical spectral range. At the same time, in the under-cloud layer, there are transparency windows at the wavelengths ? = 1.08, 0.85, and 0.65 ?m. At these wavelengths, the gaseous absorption (in the whole atmosphere rather than only in the under-cloud layer) is weaker, and the atmospheric transparency is mainly determined by the scattering on molecules. The paper presents the results of the Monte-Carlo computer modeling of the imaging of the surface from a balloon or a lander. It has been shown that the imaging from the lower boundary of the clouds is possible.

Ekonomov, A. P.

2015-04-01

65

Strain Details  

Cancer.gov

Newly Accepted Strain Details Strain Code: 01XBU  Common Strain Name: p16INKa4a L   Strain Nomenclature: B6.129(Cg)-Cdkn2atm2.1Nesh/Nci/Nci  Register Interest in this Strain Strain Description: Conditional knockout for p16INK4a gene when deleted somatically

66

Strain Details  

Cancer.gov

Newly Accepted Strain Details Strain Code: 01XJA  Common Strain Name: PML (conventional k/o) - C57BL/6  Strain Nomenclature: B6.129S7-Pmltm1Ppp>/Nci  Register Interest in this Strain Strain Description: The promyelocytic leukemia gene PML was originally

67

Detailed structure of the upper mantle discontinuities around the Japan subduction zone imaged by receiver function analyses  

Microsoft Academic Search

High-resolution receiver function (RF) images of the upper mantle structure beneath the Japan Islands are obtained by RF analysis of the P-wave coda portions of 389 teleseismic events observed at 138 high-density broadband stations. We construct RFs through frequency-domain division using a water level of 0.01 and Gaussian low-pass filters of 1.0, 0.5, 0.3, and 0.1 Hz, and produce depth-migrated

Takashi Tonegawa; Kazuro Hirahara; Takuo Shibutani

2005-01-01

68

Evaluation of lunar rocks and soils for resource utilization: Detailed image analysis of raw materials and beneficiated products  

NASA Technical Reports Server (NTRS)

The rocks and soils of the Moon will be the raw materials for fuels and construction needs at a lunar base. This includes sources of materials for the generation of hydrogen, oxygen, metals, and other potential construction materials. For most of the bulk material needs, the regolith, and its less than 1 cm fraction, the soil, will suffice. But for specific mineral resources, it may be necessary to concentrate minerals from rocks or soils, and it is not always obvious which is the more appropriate feedstock. Besides an appreciation of site geology, the mineralogy and petrography of local rocks and soils is important for consideration of the resources which can provide feedstocks of ilmenite, glass, agglutinates, anorthite, etc. In such studies, it is very time-consuming and practically impossible to correlate particle counts (the traditional method of characterizing lunar soil petrography) with accurate modal analyses and with mineral associations in multi-mineralic grains. But x ray digital imaging, using x rays characteristic of each element, makes all this possible and much more (e.g., size and shape analysis). An application of beneficiation image analysis, in use in our lab (Oxford Instr. EDS and Cameca SX-50 EMP), was demonstrated to study mineral liberation from lunar rocks and soils. Results of x ray image analysis are presented.

Taylor, Lawrence A.; Chambers, John G.; Patchen, Allan; Jerde, Eric A.; Mckay, David S.; Graf, John; Oder, Robin R.

1993-01-01

69

Crosswell Seismic Amplitude-Versus-Offset for Detailed Imaging of Facies and Fluid Distribution within Carbonate Oil Reservoirs  

SciTech Connect

Crosswell seismic surveys were conducted at two fields in northern Michigan. One of these, Springdale, included two monitor wells that are located external to the reef, and the other, Coldspring, employed two production wells within the reef. The Springdale wells extended to much greater depths than the reef, and imaging was conducted from above and from beneath the reef. The resulting seismic images provide the best views of pinnacle Niagaran reefs obtained to date. The tops of the reservoirs can be clearly distinguished, and their lateral extent or dipping edges can be observed along the profile. Reflecting events internal to the reef are evident; some of them are fairly continuous across the reef and others are discontinuous. Inversion of the seismic data indicates which events represent zones of higher porosity and which are lower porosity or even anhydrite plugged. The full stacked image includes angles that are beyond critical for many of the interfaces, and some reflections are visible only for a small range of angles, presumably near their critical angle. Stacking these angles in provides an opportunity for these events to be seen on the stacked image, where otherwise they would have been unrecognized. For inversion, however, the complexity associated with phase changes beyond critical can lead to poor results, and elastic inversion of partial angle stacks may be best conducted with restrictions to angles less than critical. Strong apparent attenuation of signals occurs when seismic ray paths pass through the upper part of the Springdale reservoir; this may be due to intrinsic attenuation and/or scattering of events due to the locally strongly varying gas saturation and extremely low fluid pressures. Signal-to-noise limitations become evident far from the source well in the Coldspring study, probably because the raw data were strongly affected by tube-wave noise generated by flow through the perforation of the receiver well. The seismic images obtained, and interpretations of them, as assisted by Amplitude-versus-Angle studies and accompanying inversion, provide additional insight into the internal geometry of these two reefs and provide data that should be useful for reservoir management.

Wayne Pennington; Mohamed Ibrahim; Roger Turpening; Sean Trisch; Josh Richardson; Carol Asiala; Walid Mabrouk

2008-09-30

70

My Place  

NSDL National Science Digital Library

This resource re-explains the concepts behind place value of numbers up to 1,000. It guides you through the place of numbers and uses simple terms and comparisons to describe the placement of numbers to students. It could be set up for students on computers to go through, or project it for the class to follow along as you re-read about place value.

Beacon Learning Center

2011-10-05

71

Academic detailing.  

PubMed

There are a number of sources available to prescribers to stay up to date about medicines. Prescribers in rural areas in developing countries however, may not able to access some of them. Interventions to improve prescribing can be educational, managerial, and regulatory or use a mix of strategies. Detailing by the pharmaceutical industry is widespread. Academic detailing (AD) has been classically seen as a form of continuing medical education in which a trained health professional such as a physician or pharmacist visits physicians in their offices to provide evidence-based information. Face-to-face sessions, preferably on an individual basis, clear educational and behavioural objectives, establishing credibility with respect to objectivity, stimulating physician interaction, use of concise graphic educational materials, highlighting key messages, and when possible, providing positive reinforcement of improved practices in follow-up visits can increase success of AD initiatives. AD is common in developed countries and certain examples have been cited in this review. In developing countries the authors have come across reports of AD in Pakistan, Sudan, Argentina and Uruguay, Bihar state in India, Zambia, Cuba, Indonesia and Mexico. AD had a consistent, small but potentially significant impact on prescribing practices. AD has much less resources at its command compared to the efforts by the industry. Steps have to be taken to formally start AD in Nepal and there may be specific hindering factors similar to those in other developing nations. PMID:21209521

Shankar, P R; Jha, N; Piryani, R M; Bajracharya, O; Shrestha, R; Thapa, H S

2010-01-01

72

Light activates H2 15O flow in rice: Detailed monitoring using a positron-emitting tracer imaging system (PETIS).  

PubMed

Water (H2 15O) translocation from the roots to the top of rice plants (Oryza saliva L. cv. Nipponbare) was visualized over time by a positron-emitting tracer imaging system (PETIS). H2 15O flow was activated 8 min after plants were exposed to bright light (1 500 &mgr;mol m-2 s-1). When the light was subsequently removed, the flow gradually slowed and completely stopped after 12 min. In plants exposed to low light (500 &mgr;mol m-2 s-1), H2 15O flow was activated more slowly, and a higher translocation rate of H2 15O was observed in the same low light at the end of the next dark period. NaCl (80 mM) and methylmercury (1 mM) directly suppressed absorption of H2 15O by the roots, while methionine sulfoximine (1 mM), abscisic acid (10 &mgr;M) and carbonyl cyanide m-chlorophenylhydrazone (10 mM) were transported to the leaves and enhanced stomatal closure, reducing H2 15O translocation. PMID:12060281

Kiyomiya, S.; Nakanishi, H.; Uchida, H.; Nishiyama, S.; Tsukada, H.; Ishioka, N. S.; Watanabe, S.; Osa, A.; Mizuniwa, C.; Ito, T.; Matsuhashi, S.; Hashimoto, S.; Sekine, T.; Tsuji, A.; Mori, S.

2001-11-01

73

Upper Yosemite Falls Detail  

USGS Multimedia Gallery

In this image, a detailed view Upper Yosemite Falls may be seen from the Yosemite Falls Trail. Upper Yosemite Falls has a total plunge of 1,430 ft (440 m). Yosemite Falls is one of the most famous waterfalls within Yosemite National Park....

74

Image quality performance of liquid crystal display systems: influence of display resolution, magnification and window settings on contrast-detail detection.  

PubMed

The aim of this study was to investigate the combined effects of liquid crystal display (LCD) resolution, image magnification and window/level adjustment on the low-contrast performance in soft-copy image interpretation in digital radiography and digital mammography. In addition, the effect of a new LCD noise reduction mechanism on the low-contrast detectability was studied. Digital radiographs and mammograms of two dedicated contrast-detail phantoms (CDRAD 2.0 and CDMAM 3.4) were scored on five LCD devices with varying resolutions (1-3- and 5-megapixel) and one dedicated 5-megapixel cathode ray tube monitor. Two 5-megapixel LCDs were included. The first one was a standard 5-megapixel LCD and the second had a new (Per Pixel Uniformity) noise reduction mechanism. A multi-variate analysis of variance revealed a significant influence of LCD resolution, image magnification and window/level adjustment on the image quality performance assessed with both the CDRAD 2.0 and the CDMAM 3.4 phantoms. The interactive adjustment of brightness and contrast of digital images did not affect the reading time, whereas magnification to full resolution resulted in a significantly slower soft-copy interpretation. For digital radiography applications, a 3-megapixel LCD is comparable with a 5-megapixel CRT monitor in terms of low-contrast performance as well as in reading time. The use of a 2-megapixel LCD is only warranted when radiographs are analysed in full resolution and when using the interactive window/level adjustment. In digital mammography, a 5-megapixel monitor should be the first choice. In addition, the new PPU noise reduction system in the 5-megapixel LCD devices provides significantly better results for mammography reading as compared to a standard 5-magapixel LCD or CRT. If a 3-megapixel LCD is used in mammography setting, a very time-consuming magnification of the digital mammograms would be necessary. PMID:16442770

Bacher, Klaus; Smeets, Peter; De Hauwere, An; Voet, Tony; Duyck, Philippe; Verstraete, Koenraad; Thierens, Hubert

2006-06-01

75

My Place in Space  

NSDL National Science Digital Library

This is a lesson about robotic exploration of the solar system. Learners will explore the difference between natural and artificial satellites and use images taken by robotic spacecraft and telescopes to gain an understanding of the Earth's place in space. Requires the books "Me on the Map" by Joan Sweeney and "My Place in Space" by Robin and Sally Hirst. This is lesson 1 of 16 in the MarsBots learning module.

76

Characterizing accuracy of total hemoglobin recovery using contrast-detail analysis in 3D image-guided near infrared spectroscopy with the boundary element method  

PubMed Central

The quantification of total hemoglobin concentration (HbT) obtained from multi-modality image-guided near infrared spectroscopy (IG-NIRS) was characterized using the boundary element method (BEM) for 3D image reconstruction. Multi-modality IG-NIRS systems use a priori information to guide the reconstruction process. While this has been shown to improve resolution, the effect on quantitative accuracy is unclear. Here, through systematic contrast-detail analysis, the fidelity of IG-NIRS in quantifying HbT was examined using 3D simulations. These simulations show that HbT could be recovered for medium sized (20mm in 100mm total diameter) spherical inclusions with an average error of 15%, for the physiologically relevant situation of 2:1 or higher contrast between background and inclusion. Using partial 3D volume meshes to reduce the ill-posed nature of the image reconstruction, inclusions as small as 14mm could be accurately quantified with less than 15% error, for contrasts of 1.5 or higher. This suggests that 3D IG-NIRS provides quantitatively accurate results for sizes seen early in treatment cycle of patients undergoing neoadjuvant chemotherapy when the tumors are larger than 30mm. PMID:20720975

Ghadyani, Hamid R.; Srinivasan, Subhadra; Pogue, Brian W.; Paulsen, Keith D.

2010-01-01

77

Go Places.  

ERIC Educational Resources Information Center

This brochure provides information about the individual colleges, universities, community colleges, and technical colleges within the Minnesota State Colleges and Universities system. The opening section titled, "How To Go Places," offers brief overviews on costs, choosing between two- and four-year colleges, options for international study,…

Minnesota State Colleges and Universities System, St. Paul.

78

YMCA National Safe Place  

NSDL National Science Digital Library

In today's world where many social services for young people are being scaled back due to budgetary constraints, outreach programs such as Project Safe Place are important to know about. The program got its start in 1983 in Louisville, and since then has spread to many parts of the country. Essentially, the Safe Place program creates a network of locations (such as schools, fire stations, YMCAs, and libraries) where young people who may be distressed by difficult and threatening situations, such as domestic disputes or other such problems, can find help and support resources. On the site, visitors can learn in great detail about the program, find Safe Place locations around the country, and read about the organization's history and current leadership. One highlight to note on the site is the Teen Topics area, which has been designed specifically for teenagers as a place to read about topics they may have questions about, such as eating disorders, suicide, and teen crime.

79

Detailed modeling and laser-induced fluorescence imaging of nitric oxide in a NH(i)-seeded non-premixed methane/air flame  

SciTech Connect

In this paper we study the formation of NO in laminar, nitrogen diluted methane diffusion flames that are seeded with ammonia in the fuel stream. We have performed numerical simulations with detailed chemistry as well as laser-induced fluorescence imaging measurements for a range of ammonia injection rates. For comparison with the experimental data, synthetic LIF images are calculated based on the numerical data accounting for temperature and fluorescence quenching effects. We demonstrate good agreement between measurements and computations. The LIF corrections inferred from the simulation are then used to calculate absolute NO mole fractions from the measured signal.The NO formation in both doped and undoped flames occurs in the flame sheet. In the undoped flame, four different mechanisms including thermal and prompt NO appear to contribute to NO formation. As the NH3 seeding level increases, fuel-NO becomes the dominant mechanism and N2 shifts from being a net reactant to being a net product. Nitric oxide in the undoped flame as well as in the core region of the doped flames are underpredicted by the model; we attribute this mainly to inaccuracies in the NO recycling chemistry on the fuel-rich side of the flame sheet.

Bell, John B.; Day, Marcus S.; Grcar, Joseph F.; Bessler, Wolfgang G.; Schulz, Christof; Glarborg, Peter; Jensen, Anker D.

2001-12-14

80

Comparing Places  

NSDL National Science Digital Library

This is an activity about identifying images of different space bodies and determining the cause of the craters pictured in each. Learners will use the Solar System Update software within Space Update to complete a worksheet. This is Solar System Activity 4 in Space Update.

2012-08-03

81

Space Place Prime  

NASA Technical Reports Server (NTRS)

Space Place Prime is public engagement and education software for use on iPad. It targets a multi-generational audience with news, images, videos, and educational articles from the Space Place Web site and other NASA sources. New content is downloaded daily (or whenever the user accesses the app) via the wireless connection. In addition to the Space Place Web site, several NASA RSS feeds are tapped to provide new content. Content is retained for the previous several days, or some number of editions of each feed. All content is controlled on the server side, so features about the latest news, or changes to any content, can be made without updating the app in the Apple Store. It gathers many popular NASA features into one app. The interface is a boundless, slidable- in-any-direction grid of images, unique for each feature, and iconized as image, video, or article. A tap opens the feature. An alternate list mode presents menus of images, videos, and articles separately. Favorites can be tagged for permanent archive. Face - book, Twitter, and e-mail connections make any feature shareable.

Fitzpatrick, Austin J.; Novati, Alexander; Fisher, Diane K.; Leon, Nancy J.; Netting, Ruth

2013-01-01

82

17. A closeup detail, looking east from the northeast corner ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

17. A close-up detail, looking east from the northeast corner of the roadbed. This image shows the concrete commemorative inscription which is let into the inside of the eastern balustrade at the north end of the bridge. The name of one of the county commissioners has been chiselled out of the inscription. The parting fault between the parapet and its coping is evident. - Vigo County Bridge No. 139, Spanning Sugar Creek at Seventy-fourth Place, Terre Haute, Vigo County, IN

83

Curriculum Vitae 1 Personal details  

E-print Network

Curriculum Vitae 1 Personal details Dr. Nelly V. Litvak Date and place of birth: 27 chains and their applications in complex random net- works. Research topics: · Markov models for node.A. Fedotkin Dissertation: Adaptive Control of Conflict Flows Doctorate Eindhoven University of Technology 22

Litvak, Nelly

84

The Stoic Place  

NSDL National Science Digital Library

Probably everything you always wanted to know about stoicism but were too stoical to ask is available on this Website. The brainchild of Western Kentucky University philosophy professor, Jan Garrett, the Stoic Place gives a fairly detailed introduction to the ideas of ancient and modern stoics, clearing up some misconceptions along the way -- such as the notion that stoics were supposed to be indifferent to pleasure. Also included here are full online texts of philosophers of stoicism as well as links to other sites holding texts, recent academic work on the stoics, and information on (and a link for) joining the International Stoic Forum. Go ahead, indulge yourself.

85

The Trade Card Place  

NSDL National Science Digital Library

Author and collector Ben Crane maintains The Trade Card Place for "all who are interested in Victorian Trade Cards used to advertise American goods and services during the late 1800s." Although the site is geared toward collectors, hosting dealer, collector, and organization directories for the potential Victorian Trade Card buyer, advertising students may also be interested, as Crane includes articles on trade card history and, in his Victorian Scrapbook archive, has posted thumbnail images of cards on subjects ranging from beverages and clothing to toys and tobacco.

86

Detail of Triton  

NASA Technical Reports Server (NTRS)

This color photo of Neptune's large satellite Triton was obtained on Aug. 24 1989 at a range of 530,000 kilometers (330,000 miles). The resolution is about 10 kilometers (6.2 miles), sufficient to begin to show topographic detail. The image was made from pictures taken through the green, violet and ultraviolet filters. In this technique, regions that are highly reflective in the ultraviolet appear blue in color. In reality, there is no part of Triton that would appear blue to the eye. The bright southern hemisphere of Triton, which fills most of this frame, is generally pink in tone as is the even brighter equatorial band. The darker regions north of the equator also tend to be pink or reddish in color. JPL manages the Voyager project for NASA's Office of Space Science, Washington, DC.

1998-01-01

87

Detailed imaging of the 2007 Pisco co-seismic and post-seismic deformation - implications on the seismogenic behavior of subduction megathrusts  

NASA Astrophysics Data System (ADS)

In the last couple of decades, advances in the analysis techniques and instrumentation have improved significantly our capability to document the different stages of the seismic cycle, namely the co-, post- and inter-seismic phases. To this respect, the Mw8.0 Pisco, Peru, earthquake of August 2007 is exemplary, with numerous data sets allowing to explore the details of each phase and study their relationship. We derive a kinematic model of the coseismic rupture from the joint non-linear inversion of teleseismic and six Interferometric Synthetic Aperture Radar (InSAR) images. Our preferred model indicates a remarkable anti-correlation between the co-seismic slip distribution and the aftershock distribution determined from the Peruvian seismic network. The proposed source model is compatible with regional run-up measurements and open-ocean tsunami records. In particular, the tsunami observations validate that the rupture did not extend to the trench, and confirm that the Pisco event is not a tsunami earthquake despite its low apparent rupture velocity (< 1.5 km/s). We favor the interpretation that the earthquake consists of 2 subevents, each with a conventional rupture velocity (2-4 km/s). The delay between the 2 subevents might reflect the time for the second shock to nucleate or, alternatively, the time it took for afterslip to increase the stress level on the second asperity to a level necessary for static triggering. The source model predicts uplift offshore and subsidence onland with the pivot line following the changes in curvature of the coastline. This observation set the Pisco earthquake as one of the best examples of a link between the geomorphology of the coastline and the pattern of surface deformation induced by large interplate ruptures. The post-seismic deformation following the mainshock is studied using a local network of continuous GPS stations and the PCAIM inversion method. The inversion indicates that the two patches of co-seismic slip triggered aseismic frictional afterslip on two other adjacent patches. The most prominent of those post-seismic patches coincides with the subducting Nazca ridge, an area also characterized by a locally low interseismic coupling and which seems to have acted as a barrier to seismic rupture propagation repeatedly in the past. The ’seismogenic’ portion of the megathrust thus appears to be paved with interfingering of rate-weakening and rate-strengthening patches. The rate-strengthening patches are shown to contribute to an unsuspectedly high proportion of aseismic slip and to determine the extent and frequency of large interplate earthquakes. Aseismic slip accounts for as much as 50-70% of the slip budget on the seismogenic portion of the megathrust of central Peru and the return period of Mw 8.0 earthquakes in the Pisco area is estimated to 250 years.

Perfettini, H.; Sladen, A.; Avouac, J.; Simons, M.; Nocquet, J.; Bondoux, F.; Kositsky, A.; Chlieh, M.; Tavera, H.; Audin, L.; Konca, A.; Fielding, E. J.; Farber, D.; Ortega, F. H.

2009-12-01

88

Center for Imaging Science Job Opportunities www.cis.rit.edu/jobs The CIS office does not have any more details on the external postings listed here.  

E-print Network

-owned subsidiary of The Walt Disney Company, is an Academy Award®- winning film studio with world. The next film release from Disney/Pixar is Toy Story 3 (June 18, 2010). Summary of Position Image Mastering

Zanibbi, Richard

89

To cite this document: Place, Sbastien and Carrere, Jean-Pierre and Magnan, Pierre and Goiffon, Vincent and Roy, Franois Radiation effects on CMOS image  

E-print Network

, Vincent and Roy, François Radiation effects on CMOS image sensors with sub-2µm pinned photodiodes. (2011) In: 12th European Conference on Radiation and Its Effects on Components and Systems (RADECS), 2011 Image Sensors (CIS) as the new standard for such imaging applications. These devices actually do offer

Mailhes, Corinne

90

Moon over Half Dome Detail  

USGS Multimedia Gallery

In this image, the Moon may be seen in detail rising over Half Dome. Half Dome is a granite dome, rising about 4,737 ft (1,444 m) above the surrounding valley. It is part of the Sierra Nevada batholith and is one of Yosemite National Park's most famous features....

91

People-managed places  

Microsoft Academic Search

Purpose – This paper seeks to promote a people-oriented approach to place management. The author asks: Why do we need place management? What can place management do? How are place managers responding? and What should place management do? Design\\/methodology\\/approach – The author reviews theoretical problems and the solutions that are implied. The author analyses policy with respect to these theories

Robin Gower

2008-01-01

92

My Special Place  

NSDL National Science Digital Library

Students pick a place of significance to them (their Special Place) for analysis in this semester-long project. (A model is provided by the instructor using a place the students are not likely to have visited.)

Sadredin Moosavi

93

Pin-hole array production and detailed data analysis for advanced single-shot X-ray imaging of laboratory plasmas  

NASA Astrophysics Data System (ADS)

Laser produced plasmas offer the unique opportunity to investigate physical mechanisms working at extremely high field in pulsed regime [1] (Gizzi et al., 2009). Future large scale infrastructure like HiPER and ELI may open new frontiers of knowledge in this way. Technologies needed for improving diagnostic in this field have a strong impact on a wide range of multi-disciplinary applications as for compact plasma-based accelerators [1,2] (Gizzi et al., 2009; Betti et al., 2009) laser fusion oriented experiments, three-dimensional microscopy and lithography. As an example the X-ray imaging, being a powerful diagnostic tool for deep investigation on different variety of laser produced plasma, has obtained a grooving effort in recent years. Large scale facilities working in single-pulse regime for laser fusion oriented experiments have evidenced the necessity to obtain spectrally resolved X-ray images of produced plasmas in a single shot. By combining the charge coupled devices (CCD) based single-photon detection technique with a pin-hole array (PHA) a new diagnostic technique was developed, as shown in recent experiments related to the European HiPER project [3] (Labate et al., 2009). Here we qualitatively describe the PHA production process on a heavy metal substrate by means of SEM images that show an internal diameter on the micrometer scale and an aspect ratio of about 20. The characterization of the X-ray contrast up to 90 keV is presented. The data analysis of the X-ray photons interaction on CCD, for spectrum reconstruction up to high energy, is described [4] (Levato et al., 2008).

Levato, T.; Labate, L.; Pathak, N. C.; Cecchetti, C.; Koester, P.; Di Fabrizio, E.; Delogu, P.; Giulietti, A.; Giulietti, D.; Gizzi, L. A.

2010-11-01

94

PERSONAL DETAILS Home Address  

E-print Network

PERSONAL DETAILS Name: Home Address: Term Address: Mobile Tel: Home Tel: Email: Date of Birth: Sex: I Male I Female School Attended: COURSE DETAILS CAO/Student No Course Title Year Under/Post Grad:........................................................................................................................................................................... Home Address

O'Mahony, Donal E.

95

Drawing Designs in Detail  

NSDL National Science Digital Library

Students practice creating rudimentary detail drawings. They learn how engineers communicate the technical information about their designs using the basic components of detail drawings. They practice creating their own drawings of a three-dimensional block and a special LEGO piece, and then make 3D sketches of an unknown object using only the information provided in its detail drawing.

Integrated Teaching and Learning Program,

96

Flight Details Packages Hotels  

E-print Network

Flight Details Home Vacation Packages Hotels Cars & Rail Cruises Flights Event Tickets & More Last Review trip details1 2 travelers, round-trip (6 days , 5 nights) More flight details Total airfare, taxes Arrive: 1:20 am next day Chicago, IL (ORD) Mexicana 804 $ E-mail flight information Add a hotel now, save

Kostic, Milivoje M.

97

A DETAILED GRAVITATIONAL LENS MODEL BASED ON SUBMILLIMETER ARRAY AND KECK ADAPTIVE OPTICS IMAGING OF A HERSCHEL-ATLAS SUBMILLIMETER GALAXY AT z = 4.243 {sup ,} {sup ,}  

SciTech Connect

We present high-spatial resolution imaging obtained with the Submillimeter Array (SMA) at 880 {mu}m and the Keck adaptive optics (AO) system at the K{sub S}-band of a gravitationally lensed submillimeter galaxy (SMG) at z = 4.243 discovered in the Herschel Astrophysical Terahertz Large Area Survey. The SMA data (angular resolution Almost-Equal-To 0.''6) resolve the dust emission into multiple lensed images, while the Keck AO K{sub S}-band data (angular resolution Almost-Equal-To 0.''1) resolve the lens into a pair of galaxies separated by 0.''3. We present an optical spectrum of the foreground lens obtained with the Gemini-South telescope that provides a lens redshift of z{sub lens} = 0.595 {+-} 0.005. We develop and apply a new lens modeling technique in the visibility plane that shows that the SMG is magnified by a factor of {mu} = 4.1 {+-} 0.2 and has an intrinsic infrared (IR) luminosity of L{sub IR} = (2.1 {+-} 0.2) Multiplication-Sign 10{sup 13} L{sub Sun }. We measure a half-light radius of the background source of r{sub s} = 4.4 {+-} 0.5 kpc which implies an IR luminosity surface density of {Sigma}{sub IR} (3.4 {+-} 0.9) Multiplication-Sign 10{sup 11} L{sub Sun} kpc{sup -2}, a value that is typical of z > 2 SMGs but significantly lower than IR luminous galaxies at z {approx} 0. The two lens galaxies are compact (r{sub lens} Almost-Equal-To 0.9 kpc) early-types with Einstein radii of {theta}{sub E1} 0.57 {+-} 0.01 and {theta}{sub E2} = 0.40 {+-} 0.01 that imply masses of M{sub lens1} = (7.4 {+-} 0.5) Multiplication-Sign 10{sup 10} M{sub Sun} and M{sub lens2} = (3.7 {+-} 0.3) Multiplication-Sign 10{sup 10} M{sub Sun }. The two lensing galaxies are likely about to undergo a dissipationless merger, and the mass and size of the resultant system should be similar to other early-type galaxies at z {approx} 0.6. This work highlights the importance of high spatial resolution imaging in developing models of strongly lensed galaxies discovered by Herschel.

Bussmann, R. S.; Gurwell, M. A. [Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138 (United States); Fu Hai; Cooray, A. [Department of Physics and Astronomy, University of California, Irvine, CA 92697 (United States); Smith, D. J. B.; Bonfield, D.; Dunne, L. [Centre for Astrophysics, Science and Technology Research Institute, University of Hertfordshire, Hatfield, Herts AL10 9AB (United Kingdom); Dye, S.; Eales, S. [School of Physics and Astronomy, University of Nottingham, University Park, Nottingham NG7 2RD (United Kingdom); Auld, R. [Cardiff University, School of Physics and Astronomy, Queens Buildings, The Parade, Cardiff CF24 3AA (United Kingdom); Baes, M.; Fritz, J. [Sterrenkundig Observatorium, Universiteit Gent, Krijgslaan 281 S9, B-9000 Gent (Belgium); Baker, A. J. [Department of Physics and Astronomy, Rutgers, the State University of New Jersey, 136 Frelinghuysen Road, Piscataway, NJ 08854-8019 (United States); Cava, A. [Departamento de Astrofisica, Facultad de CC. Fisicas, Universidad Complutense de Madrid, E-28040 Madrid (Spain); Clements, D. L.; Dariush, A. [Imperial College London, Blackett Laboratory, Prince Consort Road, London SW7 2AZ (United Kingdom); Coppin, K. [Department of Physics, McGill University, Ernest Rutherford Building, 3600 Rue University, Montreal, Quebec, H3A 2T8 (Canada); Dannerbauer, H. [Universitaet Wien, Institut fuer Astronomie, Tuerkenschanzstrasse 17, 1180 Wien, Oesterreich (Austria); De Zotti, G. [Universita di Padova, Dipto di Astronomia, Vicolo dell'Osservatorio 2, IT 35122, Padova (Italy); Hopwood, R., E-mail: rbussmann@cfa.harvard.edu [Department of Physics and Astronomy, Open University, Walton Hall, Milton Keynes, MK7 6AA (United Kingdom); and others

2012-09-10

98

Detailed imaging and genetic analysis reveal a secondary BRAF(L) (505H) resistance mutation and extensive intrapatient heterogeneity in metastatic BRAF mutant melanoma patients treated with vemurafenib.  

PubMed

Resistance to treatment is the main problem of targeted treatment for cancer. We followed ten patients during treatment with vemurafenib, by three-dimensional imaging. In all patients, only a subset of lesions progressed. Next-generation DNA sequencing was performed on sequential biopsies in four patients to uncover mechanisms of resistance. In two patients, we identified mutations that explained resistance to vemurafenib; one of these patients had a secondary BRAF L505H mutation. This is the first observation of a secondary BRAF mutation in a vemurafenib-resistant patient-derived melanoma sample, which confirms the potential importance of the BRAF L505H mutation in the development of therapy resistance. Moreover, this study hints toward an important role for tumor heterogeneity in determining the outcome of targeted treatments. PMID:25515853

Hoogstraat, Marlous; Gadellaa-van Hooijdonk, Christa G; Ubink, Inge; Besselink, Nicolle J M; Pieterse, Mark; Veldhuis, Wouter; van Stralen, Marijn; Meijer, Eelco F J; Willems, Stefan M; Hadders, Michael A; Kuilman, Thomas; Krijgsman, Oscar; Peeper, Daniel S; Koudijs, Marco J; Cuppen, Edwin; Voest, Emile E; Lolkema, Martijn P

2015-05-01

99

Place and Being  

ERIC Educational Resources Information Center

Do places matter educationally? When Edward Casey remarks: "The world is, minimally and forever, a place-world", we might take this statement as presupposing without argument that places exist as a given, that we know what a place is, a point that Aristotle would have never taken for granted and in fact neither does Casey. I find Casey's remark…

Cannatella, Howard

2007-01-01

100

It's time for a crisper image of the Face of the Earth: Landsat and climate time series for massive land cover & climate change mapping at detailed resolution.  

NASA Astrophysics Data System (ADS)

Combining climate dynamics and land cover at a relative coarse resolution allows a very interesting approach to global studies, because in many cases these studies are based on a quite high temporal resolution, but they may be limited in large areas like the Mediterranean. However, the current availability of long time series of Landsat imagery and spatially detailed surface climate models allow thinking on global databases improving the results of mapping in areas with a complex history of landscape dynamics, characterized by fragmentation, or areas where relief creates intricate climate patterns that can be hardly monitored or modeled at coarse spatial resolutions. DinaCliVe (supported by the Spanish Government and ERDF, and by the Catalan Government, under grants CGL2012-33927 and SGR2009-1511) is the name of the project that aims analyzing land cover and land use dynamics as well as vegetation stress, with a particular emphasis on droughts, and the role that climate variation may have had in such phenomena. To meet this objective is proposed to design a massive database from long time series of Landsat land cover products (grouped in quinquennia) and monthly climate records (in situ climate data) for the Iberian Peninsula (582,000 km2). The whole area encompasses 47 Landsat WRS2 scenes (Landsat 4 to 8 missions, from path 197 to 202 and from rows 30 to 34), and 52 Landsat WRS1 scenes (for the previous Landsat missions, 212 to 221 and 30 to 34). Therefore, a mean of 49.5 Landsat scenes, 8 quinquennia per scene and a about 6 dates per quinquennium , from 1975 to present, produces around 2376 sets resulting in 30 m x 30 m spatial resolution maps. Each set is composed by highly coherent geometric and radiometric multispectral and multitemporal (to account for phenology) imagery as well as vegetation and wetness indexes, and several derived topographic information (about 10 Tbyte of data). Furthermore, on the basis on a previous work: the Digital Climatic Atlas of the Iberian Peninsula, spatio-temporal surface climate data has been generated with a monthly resolution (from January 1950 to December 2010) through a multiple regression model and residuals spatial interpolation using geographic variables (altitude, latitude and continentality) and solar radiation (only in the case of temperatures). This database includes precipitation, mean minimum and mean maximum air temperature and mean air temperature, improving the previous one by using the ASTER GDEM at 30 m spatial resolution, by deepening to a monthly resolution and by increasing the number of meteorological stations used, representing a total amount of 0.7 Tbyte of data. An initial validation shows accuracies higher than 85 % for land cover maps and an RMS of 1.2 ºC, 1.6 ºC and 22 mm for mean and extreme temperatures, and for precipitation, respectively. This amount of new detailed data for the Iberian Peninsula framework will be used to study the spatial direction, velocity and acceleration of the tendencies related to climate change, land cover and tree line dynamics. A global analysis using all these datasets will try to discriminate the climatic signal when interpreted together with anthropogenic driving forces. Ultimately, getting ready for massive database computation and analysis will improve predictions for global models that will require of the growing high-resolution information available.

Pons, Xavier; Miquel, Ninyerola; Oscar, González-Guerrero; Cristina, Cea; Pere, Serra; Alaitz, Zabala; Lluís, Pesquer; Ivette, Serral; Joan, Masó; Cristina, Domingo; Maria, Serra Josep; Jordi, Cristóbal; Chris, Hain; Martha, Anderson; Juanjo, Vidal

2014-05-01

101

Negative Body Image and Disordered Eating Behavior in Children and Adolescents: What Places Youth at Risk and How Can These Problems be Prevented?  

Microsoft Academic Search

In this review, we examine the prevalence of negative body image and disordered eating behaviors (i.e., excessive dieting, binge eating, inappropriate weight loss techniques) in children and adolescents. We also explore correlates and predictors of the development of these problems, including individual, familial, and social factors, as well as discuss factors that may serve a protective function. In addition, we

Heather L. Littleton; Thomas Ollendick

2003-01-01

102

Horizontal Cross Bracing Detail, Vertical Cross Bracing Detail, Horizontal Cross ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

Horizontal Cross Bracing Detail, Vertical Cross Bracing Detail, Horizontal Cross Bracing Detail, Vertical Cross Bracing-End Detail - Cumberland Covered Bridge, Spanning Mississinewa River, Matthews, Grant County, IN

103

PERSONAL DETAILS Home Address  

E-print Network

PERSONAL DETAILS Name: Home Address: Term Address: Mobile Tel: Home Tel: Email: Date of Birth: Sex: ........................................................................................................................................................................... Date of Birth: ................................................................. Sex: Male Female: .............................................................................................................................................................. Year of study (2012

O'Mahony, Donal E.

104

Images of a place and vacation preferences: Implications of the 1989 surveys for assessing the economic impacts of a nuclear waste repository in Nevada  

SciTech Connect

In July, 1989 the authors produced a report titled Perceived Risk, Stigma, and Potential Economic Impacts of a High-Level Nuclear-Waste Repository in Nevada (Slovic et al., 1989). That report described a program of research designed to assess the potential impacts of a high-level nuclear waste repository at Yucca Mountain, Nevada upon tourism, retirement and job-related migration, and business development in Las Vegas and the state. It was concluded that adverse economic impacts potentially may result from two related social processes. Specifically, the study by Slovic et al. employed analyses of imagery in order to overcome concerns about the validity of direct questions regarding the influence of a nuclear-waste repository at Yucca Mountain upon a person`s future behaviors. During the latter months of 1989, data were collected in three major telephone surveys, designed to achieve the following objectives: (1) to replicate the results from the Phoenix, Arizona, surveys using samples from other populations that contribute to tourism, migration, and development in Nevada; (2) to retest the original Phoenix respondents to determine the stability of their images across an 18-month time period and to determine whether their vacation choices subsequent to the first survey were predictable from the images they produced in that original survey; (3) to elicit additional word-association images for the stimulus underground nuclear waste repository in order to determine whether the extreme negative images generated by the Phoenix respondents would occur with other samples of respondents; and (4) to develop and test a new method for imagery elicitation, based upon a rating technique rather than on word associations. 2 refs., 8 figs., 13 tabs.

Slovic, P.; Layman, M.; Flynn, J.H.

1990-11-01

105

Two methods for voxel detail enhancement  

Microsoft Academic Search

In this paper I describe a novel technique called voxel detail enhancement that, inspired by pixel art scaling algorithms for 2D images, produces finely detailed (3D) voxel maps from the coarser maps that would be edited by a player's actions during gameplay. I describe two methods which deterministically generate fine voxel fragments that depend only on the occupancy of a

Adam M. Smith

2011-01-01

106

Geomorphology and place  

NSDL National Science Digital Library

Students choose a place that is named based on its relationship to geomorphology. They research and describe the geologic template, geologic processes and time involved in the formation of their chosen place and use Google Earth to report their results.

Margaret McMillan

107

Place Value Rocks!  

NSDL National Science Digital Library

Play these educational math games and test your knowledge of Place Value! Can you use Place Value Blocks to help you represent different digits? Test your ability to write out given numbers into sentences with Cookies! How sharp are your place value skills? Test your knowledge with Golfing with numbers!! Be the hero of the day as you practice place value skills in the Lifeguard game! Reveal the ...

Ms.Roberts

2009-03-04

108

Summer Place Value  

NSDL National Science Digital Library

Play some fun games with your new place value skills Match the number words to the standard form to find the place value mystery picture. Can you solve the place value puzzler? Click on easy and follow the instructions. Check your score after the picture is shown. How many tries did it take you to be able to see the picture. If it ...

Mrs. Korth

2009-07-27

109

PRIPHRIQUE Place duPlace du Mal  

E-print Network

Tassignassigny Place du Mal de Lattre de Tassigny PortPorte DauphinDauphine Av. Foc. FochAv. Foch PCPC1PC1 Av. Foc. FochAv. Foch Porte Dauphine Depuis LDepuis LA POPORTE MAILLOTE MAILLOT Depuis LA PORTE MAILLOT

Féjoz, Jacques

110

Detailed balance and entanglement  

NASA Astrophysics Data System (ADS)

We study a connection between quantum detailed balance, which is a concept of importance in statistical mechanics, and entanglement. We also explore how this connection fits into thermofield dynamics.

Duvenhage, Rocco; Snyman, Machiel

2015-04-01

111

MARC CHOISY PERSONAL DETAILS  

E-print Network

MARC CHOISY PERSONAL DETAILS Date of birth: 30th of October 1976. Citizenship: French. Martial in Population Biology. University of Montpellier, France. 1999 (2 hours). The exponential law in biology. BSc

Roche, Benjamin

112

Position Summary Employee Details  

E-print Network

Position Summary Employee Details Employee First Name: Employee Last Name: Open Position Employee Salary Grade: 0 Position Description Position Number: (Assigned when added to Library) 02004048 Dept: FM: GROUNDS SERVICES - 064040 Position: ARBORETUM GARDENING SPECIALIST HEERA/Union Representation

California at Davis, University of

113

The Geography of Volunteer Tourism: Place Matters  

Microsoft Academic Search

Volunteer tourism is a growing form of alternative travel and non-governmental organizations (NGOs) are the primary institutions placing volunteers abroad. This empirical study focuses on the criteria used by volunteer-tourism NGOs for choosing countries and locations for their work. It also assesses how they use tourist activities and place image to market destinations and to pull or draw in potential

James R. Keese

2011-01-01

114

Mouse Repository Strain Details  

Cancer.gov

This is a knock-in of Cre into the Nkx3.1 locus, placing it under the transcriptional control of the Nkx3.1 promoter, and creating a null allele. Cre recombinase activity is detected in nearly all prostate epithelial cells (luminal and basal) starting from before birth.

115

The value of place  

NASA Astrophysics Data System (ADS)

This commentary seeks to expand the dialogue on place-based science education presented in Katie Lynn Brkich's article, where the connections fifth grade students make between their formal earth science curriculum and their lived experiences are highlighted. The disconnect between the curriculum the students are offered and their immediate environment is clear, and we are presented with examples of how they strive to make connections between the content and what they are familiar with—namely their surroundings. "Place" is identified as a term with complex meanings and interpretations, even in the scope of place-based science education, and understanding how the term is used in any given scenario is essential to understanding the implications of place-based education. Is place used as a location, locale or a sense of place? To understand "place" is to acknowledge that for the individual, it is highly situational, cultural and personal. It is just such attributes that make place-based education appealing, and potentially powerful, pedagogically on one hand, yet complex for implementation on the other. The argument is posed that place is particularly important in the context of education about the environment, which in its simplest manifestation, connects formal science curriculum to resources that are local and tangible to students. The incorporation of place in such a framework seeks to bridge the gap between formal school science subjects and students' lived experiences, yet acknowledges the tensions that can arise between accommodating place meanings and the desire to acculturate students into the language of the scientific community. The disconnect between guiding policy frameworks and the reality of the Next Generation Science Standards is addressed opening an avenue for further discussion of the importance of socio-cultural frameworks of science learning in an ever increasing era of accountability.

Dentzau, Michael W.

2014-03-01

116

Mouse Repository Strain Details  

Cancer.gov

Available Strain Details Order Form for Cryoarchived Strains   Strain Number: 01XH6  Common Strain Name: HB-PLAP  Strain Nomenclature: FVB-Tg(ACTB-ALPP)01Jrst/Nci  Release Category (Required for MTA form): C1 Sample MTA for this strain Strain Description: Transgenic

117

Mouse Repository Strain Details  

Cancer.gov

Available Strain Details Order Form for Live Mice   Strain Number: 01XG2  Common Strain Name: MMTV/c-myc  Strain Nomenclature: FVB-Tg(MMTV-Myc)141-3Led/Nci  Release Category (Required for MTA form): B5 , D Sample MTA for this strain Animal Health

118

Mouse Repository Strain Details  

Cancer.gov

Available Strain Details Order Form for Live Mice   Strain Number: 01XD8  Common Strain Name: Fabp1-Cre  Strain Nomenclature: FVB/N-Tg(Fabp1-Cre)1Jig/Nci  Release Category (Required for MTA form): B1 , D Sample MTA for this strain Animal Health Report

119

Mouse Repository Strain Details  

Cancer.gov

Available Strain Details Order Form for Live Mice   Strain Number: 01XBL  Common Strain Name: Myf6-ires-cre knock-in  Strain Nomenclature: B6;129-Myf6tm2(cre)Mrc/Nci  Release Category (Required for MTA form): C1 , D Sample MTA for this strain Animal

120

Mouse Repository Strain Details  

Cancer.gov

Available Strain Details Order Form for Cryoarchived Strains   Strain Number: 01XC5  Common Strain Name: SV11  Strain Nomenclature: C57BL/6-Tg(TAg)11Bri/Nci  Release Category (Required for MTA form): B1 , D Sample MTA for this strain Strain Information

121

Mouse Repository Strain Details  

Cancer.gov

Available Strain Details Order Form for Cryoarchived Strains   Strain Number: 01X68  Common Strain Name: CAG-LSL-EGFRvIII  Strain Nomenclature: STOCK Col1a1tm2(CAG-EGFR*)Char/Nci  Release Category (Required for MTA form): B3 , D Sample MTA for this

122

Detail of pahoehoe lobe  

USGS Multimedia Gallery

A detail of a pahoehoe lobe at the top of a tumulus. The upper crust that is lifted up during the formation of a tumulus is typically quite vesicular (has lots of bubbled trapped in it). Roza Formation, Columbia River Basalt Group. Southwest of Quincy, WA. Tumuli are structures usually associated w...

123

Mouse Repository Strain Details  

Cancer.gov

Available Strain Details Order Form for Cryoarchived Strains   Strain Number: 01XE8  Common Strain Name: P190 BCR-ABL  Strain Nomenclature: B6;CBA-Tg(BCR/ABL)623Hkp/Nci  Release Category (Required for MTA form): B1 , D Sample MTA for this strain Strain

124

Place My Past  

NSDL National Science Digital Library

Place My Past is a handy application designed to map a family history via historical maps made available online. After uploading family information, visitors can use the annotation tools to mark places on the map for future reference and use. It's a great way to bring a few different worlds together and it's compatible with all operating systems.

2014-05-08

125

The Case for Place  

ERIC Educational Resources Information Center

Bookstores, record stores, libraries, Facebook: these places--both physical and virtual--demonstrate an established and essential purpose as centers of community, expertise, convenience, immediacy, and respect. Yet as digital, mobile, and social shifts continue to transform culture and interactions, these spaces and places transform, too.…

Thomas, Lisa Carlucci

2012-01-01

126

More Place Value Activities  

NSDL National Science Digital Library

This webpage contains instructions for several activities and games designed to develop students' understanding of place value while reinforcing addition and subtraction skills. Downloadable materials and suggestions for variations are included along with links to online games. This is the second of two pages of similar activities. The first, Place Value Activities, is catalogued separately.

Terry Kawas

2010-01-01

127

Decimal Place Value  

NSDL National Science Digital Library

Students learn about decimal place value and the relationship between tenths, hundredths, and thousandths. Students will explore decimal place value, read and write decimals using tenths, hundredths, and thousandths, and compare decimals using greater-than and less-than notation.

Teacher Vision

2012-08-02

128

Mouse Repository Strain Details  

Cancer.gov

Widespread Cre expression including the female germline. High levels of recombination in the virgin and lactating mammary gland, salivary gland, seminal vesicle, skin and cells of the immune system. Little expression in the lung, kidney, liver and brain. Females from this line display impaired mammary development and are unable to nurse successfully, so if used in the colony pups must be fostered. Refer to PMID 21255551 for details.

129

Supporting Information Experimental Details  

E-print Network

with a thermal Schottky field emission gun and operates at 300 kV. Images are acquired with a 4096x4096 pixel CCD with a thin layer (8 nm) of silicon monoxide via thermal evaporation in order to change the hydrophobic nature-190 µm in thickness) that was positioned above the objective lens. SH activity maps were generated

Scherer, Norbert F.

130

Mouse Repository Strain Details  

Cancer.gov

A luciferase knockin mouse (p16(LUC)), which faithfully reports expression of p16(INK4a), a tumor suppressor and aging biomarker. In 14 of 14 tested tumor models, expression of p16(LUC) was focally activated by early neoplastic events, enabling visualization of tumors with sensitivity exceeding other imaging modalities.

131

Mouse Repository Strain Details  

Cancer.gov

The doxycycline-dependent transcriptional repressor, tTA, was placed under control of the bovine keratin 5 (K5, KRT5) promoter. When tested on a tetO-LacZ transgenic background, doxycycline suppressed expression of beta-galactosidase in a tissue-specific manner. Reduced beta-galactosidase activity was detected in skin (basal layer of the epidermis and hair follicles), tongue, forestomach, and trachea. No reduction was seen in tissues that do not express endogenous keratin 5 (liver, spleen, muscle, heart, intestine).

132

Place Value Made Simple  

NSDL National Science Digital Library

Students will read, write, and represent whole numbers from 0 - 1,000,000 using symbols, models, expanded form, and words. Base ten blocks, place value pocket charts, folded paper strips for expanded form accordions, and checks are used.

National Security Agency Central Security Service

2009-05-19

133

If text search changed the world in the last decade, image search will shape the future. reports from San Francisco on the advances taking place in image processing that will leave an indelible imprint on every field imaginable  

E-print Network

image search, says Google could come to the rescue again. Instead of typing text, simply take a picture- ever text is in it -- will be translated for you. When a photo clicked from your mobile can rescue you processing has changed war- fare in the last decade with remote- piloted drone aircrafts being able to get

Valero-Cuevas, Francisco

134

The Expanding Place Value  

NSDL National Science Digital Library

This collection of three lesson plans is designed to provide students with practice understanding place value (0 to 999), using standard and word form to represent numbers, and using expanded form to represent place value. Each lesson plan provides activities that will help build student understanding of the concepts and practice to help reinforce the skill. Thirteen resource sheets are included and can be used with these lessons or as independent activities.

Erin Thomson

2005-01-01

135

Artist Place Settings  

ERIC Educational Resources Information Center

Art history can be a little dry at times, but the author is always trying to incorporate new ways of teaching it. In this article, she describes a project in which students were to create a place setting out of clay that had to be unified through a famous artist's style. This place setting had to consist of at least five pieces (dinner plate, cup…

Pellegrino, Linda

2009-01-01

136

Mouse Repository Strain Details  

Cancer.gov

A Cre-inducible luciferase transgene was targeted into the Rosa26 locus and is driven by a CMV-based promoter. This allele when used in combination with Cre-regulated oncogenes or tumor suppressors can allow for noninvasive detection of tumors in mice. This allele permits serial imaging of mice, thus increasing the utility of mouse tumor models as a system to test therapeutics.

137

LF460 detail design  

NASA Technical Reports Server (NTRS)

This is the final technical report documenting the detail design of the LF460, and advanced turbotip lift fan intended for application with the YJ97-GE-100 turbojet jet generator to a V/STOL transport research aircraft. Primary objective of the design was to achieve a low noise level while maintaining the high thrust/weight ratio capability of a high pressure ratio lift fan. Report covers design requirements and summarizes activities and final results in the areas of aerodynamic and mechanical design, component and system performance, acoustic features and final noise predictions.

1971-01-01

138

Details of meiosis  

SciTech Connect

Chapter 18, discusses the details of meiosis, beginning with the structure and number of chiasmata, i.e., the cytological term for two homologous chromosomes forming a bivalent which begin to repel each other until they are held together only at the point of crossing-over. The synaptonemal complex which consists of two lateral elements which contain protein and RNA is also discussed. The chapter concludes with a description of meiosis in polyploids, human meiosis, and the behavior of X and Y chromosomes. 28 refs., 8 figs.

NONE

1993-12-31

139

Detailed Debunking of Denial  

NASA Astrophysics Data System (ADS)

The disinformation campaign against climate science has been compared to a guerilla war whose tactics undermine the traditional checks and balances of science. One comprehensive approach has to been produce archives of generic responses such as the websites of RealClimate and SkepticalScience. We review our experiences with an alternative approach of detailed responses to a small number of high profile cases. Our particular examples were Professor Ian Plimer and Christopher Monckton, the Third Viscount Monckton of Brenchley, each of whom has been taken seriously by political leaders in our respective countries. We relate our experiences to comparable examples such as John Mashey's analysis of the Wegman report and the formal complaints about Lomborg's "Skeptical Environmentalist" and Durkin's "Great Global Warming Swindle". Our two approaches used contrasting approaches: an on-line video of a lecture vs an evolving compendium of misrepresentations. Additionally our approaches differed in the emphasis. The analysis of Monckton concentrated on the misrepresentation of the science, while the analysis of Plimer concentrated on departures from accepted scientific practice: fabrication of data, misrepresentation of cited sources and unattributed use of the work of others. Benefits of an evolving compendium were the ability to incorporate contributions from members of the public who had identified additional errors and the scope for addressing new aspects as they came to public attention. `Detailed debunking' gives non-specialists a reference point for distinguishing non-science when engaging in public debate.

Enting, I. G.; Abraham, J. P.

2012-12-01

140

Horizontal Cross Bracing Detail, Vertical Cross Bracing Detail, Horizontal Cross ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

Horizontal Cross Bracing Detail, Vertical Cross Bracing Detail, Horizontal Cross Bracing Joint, Vertical Cross Bracing End Detail - Ceylon Covered Bridge, Limberlost Park, spanning Wabash River at County Road 900 South, Geneva, Adams County, IN

141

Images  

Cancer.gov

Home News and Events Multimedia Library Images Images:  Cancer Biology Image: Cell with DNA 72 DPI | 300 DPIDrawing depicting DNA molecule unwinding from a chromosome inside the nucleus of a cell. NHGRI >> View All Cancer Pathology/Imaging Image: Female

142

roof truss detail, historic strap hinge detail Chopawamsic Recreational ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

roof truss detail, historic strap hinge detail - Chopawamsic Recreational Demonstration Area - Cabin Camp 1, Main Arts and Crafts Lodge, Prince William Forest Park, Triangle, Prince William County, VA

143

double hung window details, hall window details, entrance door profiles ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

double hung window details, hall window details, entrance door profiles - Chopawamsic Recreational Demonstration Area - Cabin Camp 1, Help's Quarters, Prince William Forest Park, Triangle, Prince William County, VA

144

Place-making and Communities  

E-print Network

............................................................................................14 2.7 Place and Public Land Management .............................................................. 16 2.7.1 Space and place

145

Montana Place Names Companion  

NSDL National Science Digital Library

Billed as covering everything from "Alzada to Zortman", the Montana Place Names Companion website tells the story of Montana's place names. The project began years ago at the reference desk at the Montana Historical Society Research Center in Helena when a patron called about the origin of a mountain peak name. Over the years, a team of dedicated individuals began to compile thousands of pieces of information about cities, rivers, and mountains across the Big Sky state. Now all of this material can be found here, courtesy of the National Resource Information System at the Montana State Library. Visitors can select a place name from the drop-down menu, type in a keyword, or click on the interactive map of the state. First-time visitors may wish to start by looking at Absarokee, Porcupine Butte, and Swimming Woman Creek.

146

How an ROV-placed grout  

SciTech Connect

A remotely installed grout bag system, developed jointly by Stolt-Nielsen Seaway Technology Ltd., SeaMark Ltd. and Colos Colcrete Ltd., was used to correct and support a free span on Total Oil Marine's Frigg-St. Fergus pipe line system. The author gives details on how the system works and cost advantages over diver-placed grout bag supports.

Sandford, A.J.

1986-06-01

147

Tracking Self into Place  

ERIC Educational Resources Information Center

In an effort to figure out what it means to educate "ecologically," I decided to track down some of the stories that I was living, telling and making as an educator. I ended up lost in the house of environmental education, stuck within the rooms of ecological science and political advocacy. Outside on the lawn sat the story of place based…

Piersol, Laura

2010-01-01

148

Creativity: Does Place Matter?  

ERIC Educational Resources Information Center

This article argues that creativity has the greatest potential to flourish if a learning environment is embedded within a community that emphasises a deep sense of place. Yet in a globalised world, rootedness is often regarded as antithetical to creativity. But far from representing dead artefacts that are anti-modern and non-economic, culture and…

Bradley, Finbarr

2012-01-01

149

Teaching With Historic Places.  

ERIC Educational Resources Information Center

Designed for social studies educators, this theme issue presents 11 articles about historic places that feature a variety of ideas for elementary and secondary lesson plans, curricula, and program development. The articles are: (1) "Where did History Happen?" (Beth M. Boland); (2) "Creating a Partnership" (Carol D. Shull); (3) "Heritage Education:…

Greenberg, Ronald M., Ed.

1993-01-01

150

Designing Places for Learning.  

ERIC Educational Resources Information Center

This book presents information about the condition of schools around the United States. It also describes the link between architecture and academic success and offers suggestions for improving the design of existing and future school buildings. Eleven articles look at schools as places of deep meaning and show how that view can alter approaches…

Meek, Anne, Ed.

151

The Value of Place  

ERIC Educational Resources Information Center

This commentary seeks to expand the dialogue on place-based science education presented in Katie Lynn Brkich's article, where the connections fifth grade students make between their formal earth science curriculum and their lived experiences are highlighted. The disconnect between the curriculum the students are offered and their immediate…

Dentzau, Michael W.

2014-01-01

152

A Woman's Place.  

ERIC Educational Resources Information Center

In 1974, as part of the National Assessment of Educational Progress (NAEP) survey in writing, 4,600 17-year-old high school students were asked to write an essay defending their position on women's place in the home. About half responded that it should be a women's choice whether to be a homemaker, career woman, or both. About twenty percent said…

Gonder, Peggy

153

Education Place: Outline Maps  

NSDL National Science Digital Library

This page from Education Place's Social Studies Center lists a selection of outline maps for use in the classroom or at home. Sample maps include Africa: Political; Africa: Political and Physical; California's Regions; Colonial America, 1776; Eastern Hemisphere; Southern Asia: Political; United States: Postal Abbreviations; United States: Climate; The United States in 1860. It contains also five maps with different views of the world.

154

A Curious Place Indeed.  

ERIC Educational Resources Information Center

Presents short descriptions of six "curious places" in children's books and films. Describes sample creative class activities for younger and middle grade children to engage in after listening to selected stories. Activities include creating drawings, stories, flip books, and picture books; role-playing; and developing an imaginary town. (Contains…

Zingher, Gary

2000-01-01

155

Finding Place in Education  

ERIC Educational Resources Information Center

As a society, we are less and less comfortable in our localities. We have embraced the idea of a globalized placelessness, where everything, everywhere, resonates with a sameness. What do we lose, educationally and in society at large, when we reduce our inhabited places to those components that provide material wealth alone? If students and…

Peters, Chris

2011-01-01

156

Exterior oblique detail view of typical sidewalk entry at north ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

Exterior oblique detail view of typical sidewalk entry at north side of Building 3 from Bay Street sidewalk, looking southeast - North Beach Place, 475 Bay Street, 475 Bay Street, San Francisco, San Francisco County, CA

157

Round ceiling detail, note tension wires working against outward forces ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

Round ceiling detail, note tension wires working against outward forces on the vertical columns while restoration of collapsed roof takes place. - Baltimore & Ohio Railroad, Mount Clare Passenger Car Shop, Southwest corner of Pratt & Poppleton Streets, Baltimore, Independent City, MD

158

6. Detail of span's south trestle as it meets the ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

6. Detail of span's south trestle as it meets the bulkhead at the shore. View is from boat looking SW. - Pacific Creosoting Plant, Oil-Creosote Unloading Dock, 5350 Creosote Place, Northeast, Bremerton, Kitsap County, WA

159

Faraway Places, Fabulous Journeys: Travels on Paper, 1450-1700  

NSDL National Science Digital Library

Using this small web feature from the National Gallery of Art, visitors can closely examine four relatively fragile and little seen works from the Gallery's collections: The Triumph of Dionysus, ca. 1598, an etching by Pierre Brebiette; The Land of Cockaigne, 1564, an etching by Niccol" Nelli; seven scenes from The Journey to Constantinople, published 1553, a woodcut by Pieter Coecke van Aelst; and Etow Oh Koam, King of the River Nation, ca. 1710, a mezzotint by John Simon. What these works have in common (as well as the sixty works on paper on view at the museum thorough September 16, 2007) is that they were created to give Europeans a glimpse of distant and imaginary places, at a time when images were in much shorter supply than at present, and photography did not exist. Each print is presented with numbered details that can be moused over for more information. For example, in the mythical Land of Cockaigne there is a pot on top of a mountain of cinnamon that spews out pasta. It is also possible to zoom in on any of the images, for a close up of additional details, such as the turtle totem of Etow Oh Koam.

2007-01-01

160

Mouse Repository Strain Details  

Cancer.gov

http://www.w3.org/XML/1998/namespace http://www.w3.org/XML/1998/namespace http://www.w3.org/XML/1998/namespace http://www.w3.org/XML/1998/namespace Available Strain Details http://www.w3.org/XML/1998/namespace http://www.w3.org/XML/1998/namespace http://www.w3.org/XML/1998/namespace http://www.w3.org/XML/1998/namespace http://www.w3.org/XML/1998/namespace http://www.w3.org/XML/1998/namespace http://www.w3.org/XML/1998/namespace http://www.w3.org/XML/1998/namespace http://www.w3.org/XML/1998/namespace http://www.w3.org/XML/1998/namespace http://www.w3.org/XML/1998/namespace http://www.w3.org/XML/1998/namespace http://www.w3.org/XML/1998/namespace http://www.w3.org/XML/1998/namespace http://www.w3.org/XML/1998/namespace http://www.w3.org/XML/1998/namespace http://www.w3.org/XML/1998/namespace http://www.w3.org/XML/1998/namespace http://www.w3.org/XML/1998/namespace http://www.w3.org/XML/1998/namespace http://www.w3.org/XML/1998/namespace http://www.w3.org/XML/1998/namespace http://www.w3.org/XML/1998/namespace http://www.w3.org/XML/1998/namespace http://www.w3.org/XML/1998/namespace Mice

161

Artistic and literary places in France as tourist attractions  

Microsoft Academic Search

As heritage and cultural tourism assume greater significance, the variety of ‘tourist places’ covered by that description has become more evident. Places associated with writers, painters and others can use those connections to promote a specific kind of image and to attract visitors. There is a general assumption that such artistic or literary places will attract the more discerning visitor

D. T. Herbert

1996-01-01

162

Place and Location  

NSDL National Science Digital Library

Throughout recorded history, humans have explored and thought about their relationship with the world around them through writing, art, philosophical musings, and so on. The people behind the Place and Location journal are interested in such matters, and they have created this annual periodical in order to explore creative connections in human-environment relations, the dynamic environment, and other topics. The journal commenced publication in 2000, and visitors with a penchant for such affairs can look at the complete contents of the issues published thus far. All the articles can be read in English and some of them are also available in Estonian. Within these digital pages, visitors will find articles including "The Wilderness City: An Essay on Metaphorical Experience" and "How Spatial is a Whale? Places and Processes in Zoomusicology".

163

Place Value Party!  

NSDL National Science Digital Library

Become a Place Value expert by playing these exciting games! Use digital base ten blocks to make numbers in Base Ten Blast! It\\'s you against the computer. Play Biggest Number Challenge to see who\\'s boss. Do you dare to play the Haunted House Adventure? Order numbers from smallest to largest and make it out alive! Make a Number with digits and words. Watch out! Don\\'t pick anything ...

Ms. Chase

2008-09-20

164

Place Value Party!!  

NSDL National Science Digital Library

Become a Place Value expert by playing these exciting games! Use digital base ten blocks to make numbers in Base Ten Blast! It\\'s you against the computer. Play Biggest Number Challenge to see who\\'s boss. Do you dare to play the Haunted House Adventure? Order numbers from smallest to largest and make it out alive! Make a Number with digits and words. Watch out! Don\\'t pick anything ...

Ms. Krummell

2008-10-01

165

Contrast detail curves in head CT examinations  

NASA Astrophysics Data System (ADS)

The purpose of this study was to generate contrast detail (CD) curves for low contrast mass lesions embedded in images obtained in head and neck CT examinations. Axial head and neck CT slice images were randomly chosen from patients at five different levels. All images were acquired at 120 kV, and reconstructed using a standard soft tissue reconstruction filter. For each head CT image, we measured detection of low contrast mass lesions using a 2 Alternate Forced Choice (2-AFC) experimental paradigm. In an AFC experiment, an observer identifies the lesion location in one of two regions of interest. After performing 128 sequential observations, it is possible to compute the lesion contrast corresponding to a 92% accuracy of lesion detection (i.e., I92%). Five lesion sizes were investigated ranging from 4 mm to 12.5 mm, with the experimental order randomized to eliminate learning curve as well as observer fatigue. Contrast detail curves were generated by plotting log[I92%] versus log[lesion size]. Experimental slopes ranged from ~ -0.1 to ~ -0.4. The slope of the CD curve was directly related to the complexity of the anatomical structure in the head CT image. As the apparent anatomical complexity increased, the slope of the corresponding CD curve was reduced. Results from our pilot study suggest that anatomical structure is of greater importance than quantum mottle, and that the type of anatomical background structure is an important determinant of lesion detection in CT imaging.

Elojeimy, Saeed; Huda, Walter; Ogden, Kent M.; Owen, Ryan; Samei, Ehsan; Rumboldt, Zoran

2009-02-01

166

Finding Your Place in Art History.  

ERIC Educational Resources Information Center

Describes an art history project used with fifth-grade students where they selected a famous painting as a background for a self-portrait. Explains how the students used Adobe Photoshop to place a digital photograph of themselves into a scanned image of the artwork. (CMK)

Murphy, Lauren Parmelee

2003-01-01

167

58. DETAIL OF PINION AND BULL GEARS: Detail view towards ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

58. DETAIL OF PINION AND BULL GEARS: Detail view towards northeast of the pinion and bull gears of the winding machinery. - San Francisco Cable Railway, Washington & Mason Streets, San Francisco, San Francisco County, CA

168

Elevation, Catwalk Plan & Details, and Loading Dock Details ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

Elevation, Catwalk Plan & Details, and Loading Dock Details - U.S. Veterans Hospital, Jefferson Barracks, Special Services Building, VA Medical Center, Jefferson Barracks Division 1 Jefferson Barracks Drive, Saint Louis, Independent City, MO

169

Space Place: Cosmic Colors  

NSDL National Science Digital Library

This interactive, web-based viewer lets student select a celestial object (planet, galaxy, etc.), then select a EM wavelength range to view it (e.g., visible, ultraviolet, infrared). Images are from various ground- and space-based telescopes. Also, background info is provided on the electromagnetic spectrum and different types of telescopes.

170

The Greatest Places  

NSDL National Science Digital Library

Associated with the Science Museum of Minnesota, this Web site is a companion to the large-format film "The Greatest Places." Each of seven geographically diverse areas are featured, along with selected aspects of their culture and biological resources. The Okovango Delta and Madagascar sections have a stronger focus on the flora and fauna of the areas, while the others focus more on the culture and geography. This site is an interesting taste of seven unique areas and includes plenty of links for those who are looking for more.

171

Hidden places, uncommon persons.  

PubMed

Specialized hospital units recently created to house and maintain ventilator or other technology-dependent persons in the United States are new cultural forms that enable beings who are neither fully alive, biologically dead, nor "naturally" self-regulating, yet who are sustained by modern medical practices, to exist. These institutions both fabricate and complicate the persons who are patients there through surveillance and maintenance of their conditions. This article concerns the relationship of person to place when the consciousness of an individual, considered to be the essence of personhood in the modern Western philosophical tradition, is problematic because the person resides in a technologically produced border zone between life and death. The article explores the ways in which place and person become implicated one another: first, how consciousness and thus personhood is assessed and negotiated through the inter-subjective knowledge of hospital staff; second, how that knowledge is tied to the particular situate-dness of patients; and third, how embodiment itself-the reflexive knowledge of the-self-in-the-body-is perceived as emplaced in social and spatial relations. PMID:12719179

Kaufman, Sharon R

2003-06-01

172

Place memory in crickets  

PubMed Central

Certain insect species are known to relocate nest or food sites using landmarks, but the generality of this capability among insects, and whether insect place memory can be used in novel task settings, is not known. We tested the ability of crickets to use surrounding visual cues to relocate an invisible target in an analogue of the Morris water maze, a standard paradigm for spatial memory tests on rodents. Adult female Gryllus bimaculatus were released into an arena with a floor heated to an aversive temperature, with one hidden cool spot. Over 10 trials, the time taken to find the cool spot decreased significantly. The best performance was obtained when a natural scene was provided on the arena walls. Animals can relocate the position from novel starting points. When the scene is rotated, they preferentially approach the fictive target position corresponding to the rotation. We note that this navigational capability does not necessarily imply the animal has an internal spatial representation. PMID:18230590

Wessnitzer, Jan; Mangan, Michael; Webb, Barbara

2008-01-01

173

Images  

Microsoft Academic Search

Images are very important in the remainder of this book. They may be formed by the eye, a camera, an xray machine, a nuclear\\u000a medicine camera, magnetic resonance imaging, or ultrasound. The concepts developed in Chapter 11 can be used to understand\\u000a and describe image quality. The same concepts are also used to reconstruct computed tomographic or magnetic resonance slice

Russell K. Hobbie; Bradley J. Roth

174

People, Places and Planning in Boston  

NSDL National Science Digital Library

This remarkable site was created by a team of researchers at MIT, including Professor Tunney Lee, James Madden, and Alpita Masurkar, "to provide a comprehensive and accessible history of Boston's development for planners, students, and anyone interested in our city." The materials on the site are divided into six sections: Eras, People, Places, Planning, Stories, and Maps. The Places section is a great place to start as it contains profiles of communities like Beacon Hill and the West End, which have gone through dramatic changes over the past three centuries or so. The Maps area is a great way to experience the expansion of the urbanized area (complete with details on political boundary changes) from the Salem south to Quincy. The Planning area contains well-developed sections that examine affordable housing, parks and open space, and participatory community planning.

2012-01-01

175

K-8 Kids' Place  

NSDL National Science Digital Library

Developed by Houghton Mifflin, this site contains a number of helpful online educational, interactive materials for students from kindergarten to 8th grade. The Web site is divided into three main sections: School Books, Games, and Brain Power. In School Books, students have the ability to pick from a number of activities ranging from spelling quizzes, mathematic skills reviews, and reading activities for grades 1 through 6. Several of the activity areas here are also available in Spanish. The Brain Power section contains a number of activities designed to challenge and hone the analytic and problem-solving abilities of young people. The questions are geared for students in grades 3 through 8, and an archive containing the previous three week's questions is available for perusal. The Games section features four different activities, including Fake Out! -- where students guess the definition of a word and also have the ability to submit their own fake definitions. Additionally, Houghton Mifflin has placed a statement online regarding its commitment to protecting the privacy of children using the site. [KMG

176

Suburban Place? Constructing Place in Overland Park, Kansas  

E-print Network

Do suburbs like Overland Park, Kansas possess a "sense of place?" This thesis not only attempts to transcend the misrepresentations of suburbs as "placelessness," it also attempts to examine suburbs as places, thus examining people's experience...

Carey, Daniel

2008-08-21

177

DETAIL OF MAIN ENTRANCE ON NORTH SIDE; NOTE GOTHIC DETAILING ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

DETAIL OF MAIN ENTRANCE ON NORTH SIDE; NOTE GOTHIC DETAILING ON ENTRANCE PAVILION, PARAPET: ORIGINAL, PORTION OF THIS BUILDING WAS DESIGNED BY RATH PLANT ENGINEER J.S. BARTLEY IN 1925 - Rath Packing Company, Administration Building, Sycamore Street between Elm & Eighteenth Streets, Waterloo, Black Hawk County, IA

178

Time, Place, and Content 53 Time, Place, and Content  

E-print Network

Time, Place, and Content 53 Time, Place, and Content Jonathon D. Crystal University of Georgia The goal of this article is to integrate information about basic mechanisms of time perception with research on time-place learning and research on the discrimination of what, when, and where (WWW). Several

Cook, Robert

179

Optimal dispersion and central places  

NASA Astrophysics Data System (ADS)

This paper presents research into optimal dispersion models as applied to central places. The literature regarding location optimization and central places is reviewed and the motivation for employing dispersion models is identified. Models that employ the objective of maximal dispersion in the context of central places are formulated and solved in the context of both single- and multiple-good systems. Two methods for generating multiple-good systems are presented: a multiple-type dispersion model and a K-value constraint set formulation. Sequential solutions to dispersion models demonstrate how a system of central places could develop over time. The solutions to these models generate the patterns of central places expected under the organizing principles of central place theory. The objective of maximal dispersion is posited as both a motivating factor in central place location decisions, and as the optimal outcome of a mature system of central places.

Curtin, Kevin M.; Church, Richard L.

2007-06-01

180

Using the Computerized Scanning and Imaging Facility (C51) at WHOI, scientists can make three-dimensional reconstructions detailing the anatomy of sea turtles. This Kemp's ridley turtle was scanned to help diagnose a lung disease.  

E-print Network

-dimensional reconstructions detailing the anatomy of sea turtles. This Kemp's ridley turtle was scanned to help diagnose a lung disease. Turtle skulls prove to be shock-resistant Could sea turtles help us design better helmets) and the U.S. Navy have discov- ered that sea turtles' skulls and shells pro- tect them not only from

181

Article details Article title: Geoecology  

E-print Network

and Restoration Climate Change Consequences Conservation Style and XML details Citation style: Scientific Special the nature of the substrate upon which plants grow and animals and microbes dwell. Humans have long observed

Rajakaruna, Nishanta

182

Musical Images  

NSDL National Science Digital Library

Students are introduced to the concept of the image of music. After listening to a song, they draw images of it by deciding where different musical instruments were placed during recording. They further investigate audio engineering by modeling the position of microphones over a drum set to create a desired musical image.

Integrated Teaching and Learning Program,

183

Images  

Cancer.gov

Images can be a powerful and direct means of communicating ideas and feelings about an organization and can create a personal connection with an audience. Imagery used for the main NCI website has been selected to give a consistent look throughout the site. Here are some recommended attributes for NCI website imagery.

184

Testimony on Smoking in Public Places and Places of Employment  

Cancer.gov

I am Harold Varmus, the President of Memorial Sloan-Kettering Cancer Center in New York City, and I thank you for the opportunity to speak in support of Mayor Bloomberg's proposal to strengthen the city's prohibitions against smoking in public places and places of employment.

185

BIODIVERSTITAT I BIOLOGIA EVOLUTIVA Total places 20 Places adjudicades 13  

E-print Network

Castelblanque, Eva del Pilar Admesa Cruz Miralles, Ángel Admés Villora Montero, María Admesa BIOMEDICINA I Rodríguez, María Admesa BIOMEDICINA I FARM�CIA* Total places 20 Places adjudicades 15 * La Comissió

Valencia, Universidad de

186

When a Child Has Difficulty Moving from Place to Place  

ERIC Educational Resources Information Center

In this article, the author responds to a teacher's request for an advice on how to help a 5-year-old child in her class who has difficulty moving from place to place. The author states that the child has a problem on processing information and sensations that have to do with what he sees. This is called "visual-spatial processing" or…

Greenspan, Stanley I.

2007-01-01

187

Adjusting to New Places: International Student Adjustment and Place Attachment  

ERIC Educational Resources Information Center

Using data obtained from in-depth semistructured interviews, we examined international students' attachments to place in the local American Midwestern community where they have attended college for at least 2 years. The results of this study suggest that participants engage in a process of renegotiation of meanings attached to new places in…

Terrazas-Carrillo, Elizabeth C.; Hong, Ji Y.; Pace, Terry M.

2014-01-01

188

A Place for Everything, and Everything in Its Place  

ERIC Educational Resources Information Center

Sixteen papers on the general theme of the "place" of psychology, particularly in higher education, arose from the author's paper "Psychology in its place." Several themes emerge from the disparate contributions. The author discusses two papers which directly comment on his original one, the papers of John Newland and Tom Dickins. Psychology in…

Radford, John

2008-01-01

189

Color Image Segmentation in a Quaternion Framework  

PubMed Central

In this paper, we present a feature/detail preserving color image segmentation framework using Hamiltonian quaternions. First, we introduce a novel Quaternionic Gabor Filter (QGF) which can combine the color channels and the orientations in the image plane. Using the QGFs, we extract the local orientation information in the color images. Second, in order to model this derived orientation information, we propose a continuous mixture of appropriate hypercomplex exponential basis functions. We derive a closed form solution for this continuous mixture model. This analytic solution is in the form of a spatially varying kernel which, when convolved with the signed distance function of an evolving contour (placed in the color image), yields a detail preserving segmentation. PMID:21243101

Subakan, Özlem N.; Vemuri, Baba C.

2010-01-01

190

NOSS Altimeter Detailed Algorithm specifications  

NASA Technical Reports Server (NTRS)

The details of the algorithms and data sets required for satellite radar altimeter data processing are documented in a form suitable for (1) development of the benchmark software and (2) coding the operational software. The algorithms reported in detail are those established for altimeter processing. The algorithms which required some additional development before documenting for production were only scoped. The algorithms are divided into two levels of processing. The first level converts the data to engineering units and applies corrections for instrument variations. The second level provides geophysical measurements derived from altimeter parameters for oceanographic users.

Hancock, D. W.; Mcmillan, J. D.

1982-01-01

191

2013 Results Place UG team  

E-print Network

engineering 2nd Place UG team INVENTORS GUILD A professional networking and matchmaking website identifying to store their travel/vacation preferences and be given personalized search results with complete '13 Mgmt 3rd Place UG team DESIGN FOR USER A user-centered design software that will evaluate pre-market

Salama, Khaled

192

A Safe and Welcoming Place.  

ERIC Educational Resources Information Center

Focuses on the theme of safe and comforting places for children, and how libraries can help provide safe havens for children. Presents a survey of safe places in selected works of children's literature. Includes a sampler of creative activities focusing on the theme, and a list of resources (books and videotapes). (AEF)

Zingher, Gary

2001-01-01

193

36. Photocopy of detail of ink and wash rendering by ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

36. Photocopy of detail of ink and wash rendering by N. G. Starkwether in collection of Mr. & Mrs. Richard T. Pratt, Camden ELEVATIONS OF ITALIAN VILLA FOR WILLIAM C. PRATT - CAMDEN PLACE - DRIVE FRONT - Camden, Rappahannock River, Port Royal, Caroline County, VA

194

35. Photocopy of detail of ink and wash rendering by ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

35. Photocopy of detail of ink and wash rendering by N. G. Starkwether in collection of Mr. & Mrs. Richard T. Pratt, Camden ELEVATIONS OF ITALIAN VILLA FOR WILLIAM C. PRATT - CAMDEN PLACE - RIVER FRONT - Camden, Rappahannock River, Port Royal, Caroline County, VA

195

Exterior oblique detail view of sidewalk entry at north side ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

Exterior oblique detail view of sidewalk entry at north side of Building 3 from Bay Street sidewalk, looking southeast (with original steps revised to accommodate handicap ramp) - North Beach Place, 475 Bay Street, 475 Bay Street, San Francisco, San Francisco County, CA

196

8. Detail, 1897 Sanborn Fire Insurance Map, Carlin, Nevada, in ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

8. Detail, 1897 Sanborn Fire Insurance Map, Carlin, Nevada, in collection of Nevada Historical Society, Reno; credit Nevada Historical Society. Former Library in Engine Stores Building is now vacant Oil House is now in place, shown as corrugated iron cladding on frame. - Southern Pacific Railroad, Carlin Shops, Foot of Sixth Street, Carlin, Elko County, NV

197

18. DETAIL OF EXTERIOR WALL CONSTRUCTION, VIEW TOWARD EAST, THIRD ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

18. DETAIL OF EXTERIOR WALL CONSTRUCTION, VIEW TOWARD EAST, THIRD BAY Showing furring strips, kraft faced cellulose fiber insulation, and asphalt felt applied to interior of exterior wall studs. - U.S. Military Academy, Ice House, Mills Road at Howze Place, West Point, Orange County, NY

198

19. DETAIL OF INTERIOR WALL CONSTRUCTION, VIEW TOWARD SOUTH, THIRD ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

19. DETAIL OF INTERIOR WALL CONSTRUCTION, VIEW TOWARD SOUTH, THIRD BAY Showing asphalt felt applied to both sides of interior wall studs beneath wood cladding. Back-nailing of felt indicates sequence of felt and cladding installation. - U.S. Military Academy, Ice House, Mills Road at Howze Place, West Point, Orange County, NY

199

Mark A. Burgman Personal Details  

E-print Network

1 Resume Mark A. Burgman Personal Details Address: School of Botany The University of Melbourne of Botany, University of Melbourne. 2002 ­ present Professor, School of Botany, University of Melbourne Professor and Reader, School of Botany, University of Melbourne. 1995 ­ 1999 Coordinator of Environmental

Burgman, Mark

200

Madan Babu Mohan Personal Details  

E-print Network

University, Center for Biotechnology, Chennai, India B. Tech Industrial Biotechnology Indian Institute5th May 2005 1 Madan Babu Mohan Personal Details Address: National Center for Biotechnology for Biotechnology, Chennai, India Research project (after college hours) Supervised by: Prof. K. Sankaran "Evolution

Babu, M. Madan

201

Seductive Details in Multimedia Messages  

ERIC Educational Resources Information Center

The seductive detail principle asserts that people learn more deeply from a multimedia presentation when interesting but irrelevant adjuncts are excluded rather than included. However, critics could argue that studies about this principle contain methodological problems. The recent experiment attempts to overcome these problems. Students (N = 108)…

Rey, Gunter Daniel

2011-01-01

202

PLACES : experiencing and making a place in Athens  

E-print Network

PLACE is a concept that addresses fundamental aspects of human existence; the external bonds of man with the world. It rests upon shared ways of life and knowledge which enable its physical expression into coherent and ...

Gryboyianni, Christina

1987-01-01

203

City/Place Population Estimates  

NSDL National Science Digital Library

The US Census Bureau has released updated population estimates for cities, places, and minor civil divisions in the US. Seven major sections list cities over 100,000 and 10,000 by rank and percent growth, as well as cities, places, and minor civil divisions. The latter three sections contain figures from 1990-1996; these are arranged by state and they are also available as aggregated .zip files. Documentation and file layout are available. This City/Place information is part of a larger Census population site that covers national, state, and metropolitan area estimates (discussed in the April 25, 1997 Scout Report).

1997-01-01

204

Cardiac Imaging System  

NASA Technical Reports Server (NTRS)

Although not available to all patients with narrowed arteries, balloon angioplasty has expanded dramatically since its introduction with an estimated further growth to 562,000 procedures in the U.S. alone by 1992. Growth has fueled demand for higher quality imaging systems that allow the cardiologist to be more accurate and increase the chances of a successful procedure. A major advance is the Digital Cardiac Imaging (DCI) System designed by Philips Medical Systems International, Best, The Netherlands and marketed in the U.S. by Philips Medical Systems North America Company. The key benefit is significantly improved real-time imaging and the ability to employ image enhancement techniques to bring out added details. Using a cordless control unit, the cardiologist can manipulate images to make immediate assessment, compare live x-ray and roadmap images by placing them side-by-side on monitor screens, or compare pre-procedure and post procedure conditions. The Philips DCI improves the cardiologist's precision by expanding the information available to him.

1990-01-01

205

John Dewey and a Pedagogy of Place  

ERIC Educational Resources Information Center

If asked to define the idea of "place" one might struggle. Yet people across time and cultures readily share examples of important places or safe places or "foreign" places with one another and offer heartfelt descriptions in literature and art of childhood places, favorite places, strange places. Akinbola Akinwumi, paraphrasing Yi-Fu Tuan,…

Jayanandhan, Stephanie Raill

2009-01-01

206

People and Places. Teacher's Resources.  

ERIC Educational Resources Information Center

Reviews teachers' resources related to people and places. Most of these focus on the identification of geographic locations and historical biographies of famous individuals or groups of people. Includes discussions of reference works, audio cassettes, activity kits, and fiction. (MJP)

Porter, Priscilla H., Ed.

1996-01-01

207

New Zealand Historic Places Trust  

NSDL National Science Digital Library

The New Zealand Historic Places Trust site contains several sections that will be of great assistance to persons interested in the area of historic and cultural preservation, or for those interested in a different perspective on the practice and art of historical preservation. The research centerpiece of the site is the New Zealand Historic Places Register, which contains information on over 1,000 different sites, including the Wahi Tapu, which are places sacred to the Maori, New Zealand's indigenous people. Searching the register is quite user-friendly, as visitors can search by place name, region, current or former use, dates of original construction, and a handful of other criteria. Similar to many other historic preservation agencies, the New Zealand Historic Places Trust also has a section devoted to Heritage at Risk, which lists existing historic structures or places that are currently threatened with demolition or significant alteration. For persons interested in visiting New Zealand, there is an interactive map divided into regions where basic information about the historic sites of interest throughout the country.

208

Image coding approach based on image decomposition  

Microsoft Academic Search

Textures in many images or video scenes are difficult to code because of the large amount of visible detail. This paper proposes an image coding approach to solve this problem, in which we incorporate image decomposition and texture synthesis technology into the image coding framework. The key idea of our approach is to first decompose the original image into cartoon

Yunhui Shi; Yanli Hou; Baocai Yin; Wenpeng Ding

2010-01-01

209

The Best Places to Work in the Federal Government  

NSDL National Science Digital Library

For those looking for a career change, and thinking about public service, they may be asking: "What are the best places to work in the federal government?". This site, developed by the Partnership for Public Service and the Institute for the Study of Public Policy Implementation, answers that very question in copious detail. The study uses data from the Office of Personal Management's 2002 Federal Human Capital Survey, in which a "Best Places to Work" index was created to measure overall employee satisfaction. A FAQ section is a good place to start as it features information about searching the rankings, what the rankings mean, and how the rankings were done. Getting down to the rankings, visitors can search rankings for 28 cabinet-level departments, independent agencies, and subagency level rankings as well. Visitors can also find out which places are best to work at for persons under 40, or by looking at places ranked by gender or minority status.

210

Place-based praxis: exploring place-based education and the philosophy of place  

E-print Network

This thesis interweaves two strands of inquiry, one educational, the other philosophical. The educational inquiry is seeded by the need to understand both embodiment and learning within experiences of place in education. ...

Harrison, Samuel Carey

2012-06-29

211

Detailed mechanism of benzene oxidation  

NASA Technical Reports Server (NTRS)

A detailed quantitative mechanism for the oxidation of benzene in both argon and nitrogen diluted systems is presented. Computed ignition delay time for argon diluted mixtures are in satisfactory agreement with experimental results for a wide range of initial conditions. An experimental temperature versus time profile for a nitrogen diluted oxidation was accurately matched and several concentration profiles were matched qualitatively. Application of sensitivity analysis has given approximate rate constant expressions for the two dominant heat release reactions, the oxidation of C6H5 and C5H5 radicals by molecular oxygen.

Bittker, David A.

1987-01-01

212

Aircraft empennage structural detail design  

NASA Technical Reports Server (NTRS)

This project involved the detailed design of the aft fuselage and empennage structure, vertical stabilizer, rudder, horizontal stabilizer, and elevator for the Triton primary flight trainer. The main design goals under consideration were to illustrate the integration of the control systems devices used in the tail surfaces and their necessary structural supports as well as the elevator trim, navigational lighting system, electrical systems, tail-located ground tie, and fuselage/cabin interface structure. Accommodations for maintenance, lubrication, adjustment, and repairability were devised. Weight, fabrication, and (sub)assembly goals were addressed. All designs were in accordance with the FAR Part 23 stipulations for a normal category aircraft.

Meholic, Greg; Brown, Rhonda; Hall, Melissa; Harvey, Robert; Singer, Michael; Tella, Gustavo

1993-01-01

213

A Novel Approach for Detail-Enhanced Exposure Fusion Using Guided Filter  

PubMed Central

In this paper we propose a novel detail-enhancing exposure fusion approach using nonlinear translation-variant filter (NTF). With the captured Standard Dynamic Range (SDR) images under different exposure settings, first the fine details are extracted based on guided filter. Next, the base layers (i.e., images obtained from NTF) across all input images are fused using multiresolution pyramid. Exposure, contrast, and saturation measures are considered to generate a mask that guides the fusion process of the base layers. Finally, the fused base layer is combined with the extracted fine details to obtain detail-enhanced fused image. The goal is to preserve details in both very dark and extremely bright regions without High Dynamic Range Image (HDRI) representation and tone mapping step. Moreover, we have demonstrated that the proposed method is also suitable for the multifocus image fusion without introducing artifacts. PMID:24683353

Bhooshan, Sunil

2014-01-01

214

VENUE AND TICKETING INFO Cinema Pacific events will take place  

E-print Network

VENUE AND TICKETING INFO Cinema Pacific events will take place downtown at The Shedd Institute on the University of Oregon campus; and at Bijou Art Cinemas at 492 E. 13th Ave. TICKETS FOR ALL SHOWS ARE AVAILABLE.uoregon.edu/tickets For more details, visit cinemapacific.uoregon.edu Cinema Pacific is hosted by the UO Arts

Oregon, University of

215

Reading Place: Learning from the Savage Inequalities at Erasmus Hall  

ERIC Educational Resources Information Center

Through his detailed descriptions of schools across America, Kozol (1991) demonstrated the symbolic impact of the physical space of schools with disturbing examples of institutionalized racism made visible. Thus, Savage Inequalities also initiated a critical pedagogy of place by questioning the relationship of racial identity to the quality and…

Dickar, Maryann

2006-01-01

216

Sense of Place in Appalachia.  

ERIC Educational Resources Information Center

This journal issue contains interviews, essays, short stories, and poetry focusing on sense of place in Appalachia. In interviews, author Wilma Dykeman discussed past and recent novels set in Appalachia with interviewer Sandra L. Ballard; and novelist Lee Smith spoke with interviewer Pat Arnow about how Appalachia has shaped her writing. Essays…

Arnow, Pat, Ed.

1989-01-01

217

A Place on the Shelf  

ERIC Educational Resources Information Center

If we read to discover new worlds, we also read to find ourselves. For gays and lesbians, this act of discovery can be problematic: literature has so often excluded them. In the last decades, as gays and lesbians have grown increasingly vocal in the effort to secure their rightful place in society, a broad range of fiction has emerged that…

Thomas, Devon

2007-01-01

218

Destination place planning and design  

Microsoft Academic Search

Destination place management requires that land use and development issues be addressed. Despite considerable advancement in the methodological processes, there is still no clear conceptual destination model to address these issues. Existing models have largely been developed through a fragmented case-study approach and have not yet achieved a sufficiently integrated conceptual basis for a comprehensive understanding of the spatial characteristics

Dianne Dredge

1999-01-01

219

Let's Sleep at Your Place  

E-print Network

Broadcast Transcript: Sure, Mongolia still has its yurts, its nomads, its fermented yak's milk but it also has a reality TV show: ?????? ????? which means Let's Sleep at Your Place. The host is Tengis, a friendly and sincere young man in glasses...

Hacker, Randi

2010-05-19

220

Creative Teaching with Historic Places.  

ERIC Educational Resources Information Center

This journal contains articles and materials to help teachers instruct students about U.S. historical and cultural heritage. Articles and teaching materials are: "History in the Hands of Tomorrow's Citizens" (C. D. Shull; B. M. Boland); "On-Site Learning--The Power of Historic Places" (J. O. Horton); "Visualizing History--Inquiring Minds Want To…

Greenberg, Ronald M., Ed.

2000-01-01

221

The Place You Call Home  

ERIC Educational Resources Information Center

School boards sometimes want their superintendents to live within school district boundaries. However, this is one place, the author believes, where school boards need to show some flexibility and consider individual family needs. Unlike field hands, superintendents should have some choices about where to live, where their spouse works and where…

Riley, Mary

2009-01-01

222

The Social Attachment to Place  

ERIC Educational Resources Information Center

Many theories either implicitly or explicitly assume that individuals readily move to places that improve their financial well-being. Other forces, however, offset these tendencies; for example, people often wish to remain close to family and friends. We introduce a methodology for determining how individuals weigh these countervailing forces, and…

Dahl, Michael S.; Sorenson, Olav

2010-01-01

223

The Social Attachment to Place  

Microsoft Academic Search

:Many theories either implicitly or explicitly assume that individuals readily move to places that improve their financial well-being. Other forces, however, offset these tendencies; for example, people often wish to remain close to family and friends. We introduce a methodology for determining how individuals weigh these countervailing forces, and estimate how both financial and social factors influence geographic mobility in

Michael S. Dahl; Olav Sorenson

2010-01-01

224

The Social Attachment to Place  

Microsoft Academic Search

Many theories either implicitly or explicitly assume that individuals readily move to places that improve their financial well-being. Other forces, however, offset these tendencies; for example, people often wish to remain close to family and friends. We introduce a methodology for determining how individuals weigh these countervailing forces, and estimate how both financial and social factors influence geographic mobility in

Michael S. Dahl; Olav Sorenson

2010-01-01

225

Putting molecules in their place  

PubMed Central

Each class of microscope is limited to imaging specific aspects of cell structure and/or molecular organization. However, imaging the specimen by complementary microscopies and correlating the data can overcome this limitation. Whilst not a new approach, the field of correlative imaging is currently benefitting from the emergence of new microscope techniques. Here we describe the correlation of cryogenic fluorescence tomography (CFT) with soft x-ray tomography (SXT). This amalgamation of techniques integrates 3-D molecular localization data (CFT) with a high-resolution, 3-D cell reconstruction of the cell (SXT). Cells are imaged in both modalities in a near-native, cryopreserved state. Here we describe the current state of the art in correlative CFT-SXT, and discuss the future outlook for this method. PMID:23966233

Cinquin, Bertrand P.; Do, Myan; McDermott, Gerry; Walters, Alison D.; Myllys, Markko; Smith, Elizabeth A.; Cohen-Fix, Orna; Le Gros, Mark A.; Larabell, Carolyn A.

2013-01-01

226

Detail of north side of Test Stand 'A' base, showing ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

Detail of north side of Test Stand 'A' base, showing tanks for distilled water (left), fuel (center), and gaseous nitrogen (right). Other tanks present for tests were removed before this image was taken. - Jet Propulsion Laboratory Edwards Facility, Test Stand A, Edwards Air Force Base, Boron, Kern County, CA

227

4. Credit BG. Detail view of pair of Clayton steam ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

4. Credit BG. Detail view of pair of Clayton steam generators. Left part of image shows front, right part shows back. Generators were removed from 4280/E-81 for shipment to a new owner. - Jet Propulsion Laboratory Edwards Facility, Test Stand D, Steam Generator Plant, Edwards Air Force Base, Boron, Kern County, CA

228

Fine Details of the Icy Surface of Ganymede  

NASA Technical Reports Server (NTRS)

Dramatic view of fine details in ice hills and valleys in an unnamed region on Jupiter's moon Ganymede. North is to the top of the picture and the sun illuminates the surface from the left. The finest details that can be discerned in this picture are only 11 meters across (similar to the size of an average house) some 2000 times better than previous images of this region. The bright areas in the left hand version are the sides of hills facing the sun; the dark areas are shadows. In the right hand version the processing has been changed to bring out details in the shadowed regions that are illuminated by the bright hillsides. The brightness of some of the hillsides is so high that the picture elements 'spill over' down the columns of the picture. The image was taken on June 28, 1996 from a distance of about 1000 kilometers. The Jet Propulsion Laboratory, Pasadena, CA manages the mission for NASA's Office of Space Science, Washington, DC. This image and other images and data received from Galileo are posted on the World Wide Web, on the Galileo mission home page at URL http://galileo.jpl.nasa.gov. Background information and educational context for the images can be found at URL http://www.jpl.nasa.gov/galileo/sepo

1996-01-01

229

14. DETAIL OF STEEL FORM FOR CYLINDER, DWG. 70, 3/4" ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

14. DETAIL OF STEEL FORM FOR CYLINDER, DWG. 70, 3/4" = 1', APRIL 24, 1908, TRACED WMP - Baltimore Inner Harbor, Pier 5, South of Pratt Street between Market Place & Concord Street, Baltimore, Independent City, MD

230

Reconstruction filters and contrast detail curves in CT  

NASA Astrophysics Data System (ADS)

In this study, we investigated the effect of CT reconstruction filters in abdominal CT images of a male anthropomorphic phantom. A GE Light Speed CT 4-slice scanner was used to scan the abdomen of an adult Rando phantom. Cross sectional images of the phantom were reconstructed using four reconstruction filters: (1) soft tissue with the lowest noise; (2) detail (relative noise 1.7); (3) bone (relative noise 4.5); and (4) edge (relative noise 7.7). A two Alternate Forced Choice (AFC) experimental paradigm was used to estimate the intensity needed to achieve 92% correct (i.e., I 92%). Four observers measured detection performance for five lesions with size ranging from 2.5 to 12.5 mm for each of these four reconstruction filters. Contrast detail curves obtained in images of an anthropomorphic phantom were not straight lines, but best fitted to a second order polynomial. Results from four readers show similar trends with modest inter-observer differences with the measured coefficient of variation of the absolute performance levels of ~22%. All reconstruction filters had similar shaped contrast detail curves except for smallest details where the frequency response of filters differed most significantly. Increasing the noise level always reduced detection performance, and a doubling of image noise resulted in an average drop in detection performance of ~20%. The key findings of this study are that (a) the Rose model can provide reasonable predictions as to how changes in lesion size affect observer detection; (b) the shape of CT contrast detail curves is affected only very slightly with reconstruction filter; (c) changes in reconstruction filter noise can predict qualitative changes in observer detection performance, but are poor direct predictors of the quantitative changes of imaging performance.

Huda, W.; Ogden, K. M.; Samei, E.; Scalzetti, E. M.; Lavallee, R. L.; Roskopf, M. L.; Groat, G. E.

2008-03-01

231

Reflections on leadership and place  

Microsoft Academic Search

Drawing upon the preceding articles in this issue, we propose a multiple discourses approach to the study of contemporary leadership and place-shaping literatures with the intention of encouraging researchers, policy-makers and practitioners to engage more self-consciously with the discursive frames within which they work. We argue that this is no mere intellectual exercise, but is crucial for garnering and combining

Chris Mabey; Tim Freeman

2010-01-01

232

The Finer Details: Climate Modeling  

NASA Technical Reports Server (NTRS)

If you want to know whether you will need sunscreen or an umbrella for tomorrow's picnic, you can simply read the local weather report. However, if you are calculating the impact of gas combustion on global temperatures, or anticipating next year's rainfall levels to set water conservation policy, you must conduct a more comprehensive investigation. Such complex matters require long-range modeling techniques that predict broad trends in climate development rather than day-to-day details. Climate models are built from equations that calculate the progression of weather-related conditions over time. Based on the laws of physics, climate model equations have been developed to predict a number of environmental factors, for example: 1. Amount of solar radiation that hits the Earth. 2. Varying proportions of gases that make up the air. 3. Temperature at the Earth's surface. 4. Circulation of ocean and wind currents. 5. Development of cloud cover. Numerical modeling of the climate can improve our understanding of both the past and, the future. A model can confirm the accuracy of environmental measurements taken. in, the past and can even fill in gaps in those records. In addition, by quantifying the relationship between different aspects of climate, scientists can estimate how a future change in one aspect may alter the rest of the world. For example, could an increase in the temperature of the Pacific Ocean somehow set off a drought on the other side of the world? A computer simulation could lead to an answer for this and other questions. Quantifying the chaotic, nonlinear activities that shape our climate is no easy matter. You cannot run these simulations on your desktop computer and expect results by the time you have finished checking your morning e-mail. Efficient and accurate climate modeling requires powerful computers that can process billions of mathematical calculations in a single second. The NCCS exists to provide this degree of vast computing capability.

2000-01-01

233

A Place Pedagogy for "Global Contemporaneity"  

ERIC Educational Resources Information Center

Around the globe people are confronted daily with intransigent problems of space and place. Educators have historically called for place-based or place-conscious education to introduce pedagogies that will address such questions as how to develop sustainable communities and places. These calls for place-conscious education have included liberal…

Somerville, Margaret J.

2010-01-01

234

Teaching with Historic Places (TwHP)  

NSDL National Science Digital Library

Using properties listed on the National Park Service's (NPS) National Register of Historic Places, this site crafts unique lesson plans suited for a variety of subjects, including history, civics, geography, and social studies. Currently only 14 of the 76 prepared lesson plans are online, but the NPS is in the process of making all of them available. Lessons can be browsed in the index by theme, time period, or location. Plans include directions for use, maps, historical readings, images, and activities. Sample lessons include The M'Clintock House: A Home to the Women's Rights Movement, When Rice Was King, and Thaw in the Cold War: Eisenhower and Khrushchev at Gettysburg. Additional resources at the TwHP site include a curriculum kit, a guide to creating TwHP materials based around users' local historic sites, and professional development information.

235

Medical volume image summarization  

Microsoft Academic Search

Medical volume images are large in size. They cannot be efficiently transmitted and visualized as candidates for medical image retrieval and relevance feedback. On the other hand, 2D images that are small in size and rich in 3D details can be efficiently transmitted and visualized as candidates. This paper presents an algorithm that summarizes the 3D details in a volume

Feng Ding; Hao Li; Yuan Cheng; W. K. Leow

2009-01-01

236

Tourism & Urban Development: Building Local Economies & Sense of Place  

E-print Network

Tourism & Urban Development: Building Local Economies & Sense of Place - Mt Albert - Simon Milne is essential, tourism must sustain and enhance local quality of life ­ "Communities will work for tourism if tourism works for communities" #12;Source: areeweb.polito.it/didattica/chimica/images #12;#12;A

237

Tourism & Urban Development: Building Local Economies & Sense of Place  

E-print Network

Tourism & Urban Development: Building Local Economies & Sense of Place - Kingsland - Simon Milne is essential, tourism must sustain and enhance local quality of life ­ "Communities will work for tourism if tourism works for communities" #12;Source: areeweb.polito.it/didattica/chimica/images #12;#12;A

238

Place-based heritage regeneration in Madaba, Jordan  

Microsoft Academic Search

While image-based heritage regeneration, emphasizing the preservation of the immediately visible environment, has dominated efforts in most Islamic and developing countries, this article uses a case study of Madaba, Jordan to highlight the advantages of place-based regeneration approaches that focus on the preservation local users and uses built environments and spaces. As Jordan continues to face economic challenges, officials have

Rama Al Rabady

2010-01-01

239

Cornice Detail of Rake, Cornice Detail of Eave, Wood DoubleHung ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

Cornice Detail of Rake, Cornice Detail of Eave, Wood Double-Hung Window Details, Wood Door Details - Boxley Grist Mill, Boxley vicinity on State Route 43, Buffalo National River, Ponca, Newton County, AR

240

Tapping the Power of Place  

ERIC Educational Resources Information Center

In American popular culture, the word "rural" invokes images of sunny farms and little red schoolhouses--while "urban" means drugs, poverty, and crime. But those who know the reality of both worlds will say that rural schools face many of the same challenges as their urban counterparts. The problems of rural schools are often invisible to the…

Lockette, Tim

2010-01-01

241

Imaging Biomarkers or Biomarker Imaging?  

PubMed Central

Since biomarker imaging is traditionally understood as imaging of molecular probes, we highly recommend to avoid any confusion with the previously defined term “imaging biomarkers” and, therefore, only use “molecular probe imaging (MPI)” in that context. Molecular probes (MPs) comprise all kinds of molecules administered to an organism which inherently carry a signalling moiety. This review highlights the basic concepts and differences of molecular probe imaging using specific biomarkers. In particular, PET radiopharmaceuticals are discussed in more detail. Specific radiochemical and radiopharmacological aspects as well as some legal issues are presented. PMID:24967536

Mitterhauser, Markus; Wadsak, Wolfgang

2014-01-01

242

PLACE OF NUTRITION IN YOGA  

PubMed Central

Nutrition plays a very vital role in our life. Yoga and Ayurveda had laid down the foundations of dietetics. The valuable guidelines regarding various food articles and diet for Yoga Sadhaka, to achieve maximum benefits, are given in traditional yoga texts like Hatha Pradipika and Gheranda Samhitha. Now is the time to evaluate the place of nutrition in Yoga and to study how the dietetic principles in yoga will help to eradicate the national problem of Mal-nutrition and poverty which is the pressing need of the moment. PMID:22557690

Desai, B.P.

1990-01-01

243

Our Place in Our Galaxy  

NSDL National Science Digital Library

In this fun and simple hands-on astronomy activity, learners construct a model of our place in the Milky Way Galaxy and the distribution of stars, with a quarter and some birdseed. This is a great introduction to the distances of objects in the universe. This activity was designed for use with sky-viewing telescopes but can be adapted to many venues. The PDF contains step-by-step instructions, photos, presentation tips, background information, and ready-to-print activity handouts.

Astronomical Society of the Pacific

2008-01-01

244

Musculoskeletal Imaging  

PubMed Central

Musculoskeletal problems account for a significant portion of primary care medicine. Increase in the public awareness of physical fitness has led to an increase in both the incidence and appreciation of musculoskeletal disorders. This discussion considers the investigation of disorders involving the shoulder, wrist, foot, knee and pelvis. Emphasis is placed on new imaging techniques and their place in the investigation of these problems, as well as on their relationship to the more traditional modalities. ImagesFigure 1Figure 2Figure 3Figure 4Figure 5Figure 6Figure 7Figure 8Figure 9 PMID:21267198

Connell, Douglas G.

1986-01-01

245

Teachers' Place: Monterey Bay Aquarium  

NSDL National Science Digital Library

The Monterey Bay Aquarium has long had an ambitious outreach mission. As a result, its Teachers' Place is a fine resource for educators around the world. On the homepage, visitors will find sections such as Teacher Programs, Field Trips, and Classroom Resources. In the Classroom Resources area, visitors can take advantage of lesson plans and interactive media features that include Rocky Shore, Kelp Forest, Sea Otters, and Mission to the Deep. The Games & Interactives area includes downloadable posters, fact cards, and a virtual dive into Monterey Canyon that provides visitors with a truly immersive experience, minus the actual water, of course. This same section also has some pretty great tunes, such as "Hold On or Go With the Flow," which is a paean to surviving the rough and tumble world of the rocky shore.

246

Detail view of the interior of the flight deck looking ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

Detail view of the interior of the flight deck looking forward showing the overhead control panels. Note that the flight deck windows have protective covers over them in this view. This images can be digitally stitched with image HAER No. TX-116-A-19 to expand the view to include the Commander and Pilot positions during ascent and reentry and landing. This view was taken in the Orbiter Processing Facility at the Kennedy Space Center. - Space Transportation System, Orbiter Discovery (OV-103), Lyndon B. Johnson Space Center, 2101 NASA Parkway, Houston, Harris County, TX

247

The possibility of changing meaning in light of space and place.  

PubMed

The author considers the possibility of changing meaning in light of space and place. Many questions are raised, including a fundamental question: If we simply choose the meaning of space and place based on personal knowing, regardless of the space and place we are in, does space and place really matter with regard to the possibility of changing meaning? Many possibilities of changing meaning in light of space and place are explored, including the influence of personal knowing, new life experiences and understandings, changes to space and place, unique languaging in space and place, imaging space and place, and engaging in the wonder and mystery of space and place beyond this realm. The possibility of changing meaning is significant in that new meanings open doors to different choices-and living choices is living health. PMID:16624975

Jonas-Simpson, Christine

2006-04-01

248

Imaging in radiotherapy  

SciTech Connect

The text contains details of recording media, image quality, sensitometry, processing and equipment used in radiotherapy for imaging. It reflects part of the syllabus for the College of Radiographers.

Taylor, J.

1987-01-01

249

On Levels of Detail in Terrains  

Microsoft Academic Search

In many applications it is important that one view a scene at different levels of detail. A prime example is flight simulation. A high level of detail is needed when flying low, whereas a low level of detail suffices when flying high. More precisely, one would like to visualize the part of the scene that is close at a high

Mark De Berg; Katrin T. G. Dobrindt

1998-01-01

250

STAT 462/862 Detail Course Syllabus  

E-print Network

STAT 462/862 Fall 2007 Detail Course Syllabus * This is a projected schedule only. Timing · Introduction to objects · Data values · Logical values #12;STAT 462/862 Fall 2007 Detail Course Syllabus Week 7 (Oct. 23/25) · Shorthand for listing variables #12;STAT 462/862 Fall 2007 Detail Course Syllabus

Linder, Tamás

251

ATTENTION TO DETAIL: A NEGLECTED IT SKILL?  

Microsoft Academic Search

It is an interesting irony that in a field fraught with details, attention to detail (ATD) gets little recognition in information systems literature and job ads. This paper examines how ATD is integral to success in the IT field. This study also considers how attention to detail has been addressed in other business-related disciplines to draw parallels to the IT

James J. Cappel

252

Cognition and affect in the development of sense of place  

E-print Network

development can be identified paralleling the stages of cognitive development. The general approach was (l) to define sense of place in terms of the significance of home neigh- borhood, (2) to d vise a procedure using a neighborhood sketch map... . 8. Uniform Size of Map Features 9. Uniform Detail of Map . 10. Map Perspective . ll. Placement of Home on Map 12. Map Complexity. Number of Element Types 13. Map Scale, Number of Buildings . . 14. Map Scale. Number of Roads . 15. Neighborhood...

Engman, Dianne Lynn

1978-01-01

253

A Great Place to Watch the Weather  

NASA Technical Reports Server (NTRS)

In this time of year when Mars is most likely to be covered by global dust storms, NASA's Spirit rover has been experiencing relative calm. In fact, the martian winds have been quite beneficial, clearing dust from the rover's solar panels and increasing the solar energy available for driving to new places and conducting scientific experiments.

Another thing the martian wind has done is send hundreds of dust devils spinning across the surface of the planet. From Spirit's high perch approximately 90 meters (295 feet) above the surrounding plains, as shown in this image taken from the summit of 'Husband Hill,' three dust devils are clearly visible in the plains of Gusev Crater. Planetary Scientist Ron Greeley of Arizona State University, Tempe, describes the whirling vortices of wind and dust as 'vacuum cleaners' that were first seen in images from the Viking Orbiter in 1985, though their existence was predicted as early as 1964.

The most prominent dust devil in this image, visible on the left side of the 360-degree panorama, is one of the closest seen by Spirit. It is about 2 kilometers (1.2 miles) away from the rover, about 90 meters (295 feet) in diameter at its widest point, and 275 meters (902 feet) tall. Its flux is about 1 kilogram per second, meaning it is picking up about 2 pounds of sediment each second and moving it around.

The smaller dust devil just to the right of the largest one is 2.5 to 3 kilometers (1.6 to 1.9 miles) away and is churning up about 0.5 kilograms (1 pound) per second. Both are north of the rover's position and are moving in an east-southeast direction. On the right side of the mosaic shown here is a third dust devil.

Greeley has calculated that if the number and frequency of dust devils Spirit has encountered are similarly spaced throughout Gusev Crater, the crater probably experiences about 90,000 dust devils per martian day, or sol. Collectively, the whirlwinds lift and redeposit an estimated 4.5 million kilograms (9.9 million U.S. pounds) of sediment per sol.

Spirit took this mosaic of images with its navigation camera on sol 581 (Aug. 22). Straight ahead, just east of the rover, is the summit of 'Husband Hill.' The 360-degree field of view is presented in a cylindrical projection with geometrical seam correction.

2005-01-01

254

A new place for death with dignity: the golden room.  

PubMed

In this article, the authors consider how professional nurses can strive to advance death and dying to the next level in our evolution of compassionate end-of-life practices. The authors focus on describing the development of a place for dying that allows for a peaceful, profound experience that honors and respects human dignity and elevates the human family. Actual places called the Golden Room or Golden Room Centers are proposed to accommodate dying persons and their loved ones at end of life as they make the transition from physical life. The authors detail and propose a return to the sacredness of death and dying through access to a place for the physical transition. PMID:21357182

Keegan, Lynn; Drick, Carole Ann

2011-12-01

255

Detail view of the port side of the payload bay ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

Detail view of the port side of the payload bay of the Orbiter Discovery. This view shows Remote Manipulator System, Canadarm, sensors in the center of the image and a close-up view of a small segment of the orbiter's radiator panel. This photograph was taken in the Orbiter Processing Facility at the Kennedy Space Center. - Space Transportation System, Orbiter Discovery (OV-103), Lyndon B. Johnson Space Center, 2101 NASA Parkway, Houston, Harris County, TX

256

Detail view of the underside of a elevon on the ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

Detail view of the underside of a elevon on the port side wing of the Orbiter Discovery. Note the wear and replacement patterns of the High-temperature Reusable Surface Insulation tiles. This image was taken inside of the Orbiter Processing Facility at Kennedy Space Center. - Space Transportation System, Orbiter Discovery (OV-103), Lyndon B. Johnson Space Center, 2101 NASA Parkway, Houston, Harris County, TX

257

Category-selective neural substrates for person- and place-related concepts.  

PubMed

The influence of object-category on the representation of semantic knowledge remains unresolved. We present a functional magnetic resonance imaging study that investigates whether there are distinct neural substrates for semantic knowledge of kinds of people (e.g., lawyer, nurse etc.) and places (e.g., bank, prison etc.). Access to semantic details about kinds of people produced selective responses in the precuneus, medial prefrontal cortex, left anterior temporal lobe, posterior middle temporal gyrus and the temporoparietal junction. Corresponding place-selective responses were present in the parahippocampal gyrus and retrosplenial complex. Category selectivity was found to be less pronounced when conceptual information was accessed about kinds of people compared to unique people (e.g., Obama). We attribute this to the greater importance of cross-categorical semantic knowledge in the conceptual representation of kinds. Together, these results show the importance of object-category in non-perceptual semantic representations and indicate the manner in which these systems may interact to create full conceptual representations. PMID:23831433

Fairhall, Scott L; Caramazza, Alfonso

2013-01-01

258

Detailed Globes Enhance Education and Recreation  

NASA Technical Reports Server (NTRS)

Orbis World Globes creates inflatable globes-Earthballs-in many sizes that depict Earth as it is seen from space, complete with atmospheric cloud cover. Orbis designs and produces the most visually authentic replicas of Earth ever created, and NASA took notice of Orbis globes and employed a 16-inch diameter EarthBall for an educational film it made aboard the STS-45 shuttle mission. Orbis later collaborated with NASA to create two 16-foot diameter world globes for display at the 2002 Olympic Winter Games in Salt Lake City, using more detailed satellite imagery. The satellite image now printed on all Orbis globes displays 1-kilometer resolution and is 21,600 by 43,200 pixels in size, and Orbis globes are otherwise meteorologically accurate, though the cloud cover has been slightly reduced in order for most of the landforms to be visible. Orbis also developed the exclusive NightGlow Cities feature, enabling EarthBalls to display the world's cities as they appear as the Earth revolves from daylight into night. Orbis inflatable globes are available in sizes from 1 to 100 feet in diameter, with the most common being the standard 16-inch and 1-meter diameter EarthBalls. Applications include educational uses from preschools to universities, games, and for a variety of display purposes at conferences, trade shows, festivals, concerts, and parades. A 16-foot diameter Orbis globe was exhibited at the United Nations' World Urban Forum, in Vancouver, Canada; the Space 2006 conference, in San Jose, California; and the X-Prize Cup Personal Spaceflight Exposition in Las Cruces, New Mexico.

2007-01-01

259

An automated digital imaging system for environmental monitoring applications  

USGS Publications Warehouse

Recent improvements in the affordability and availability of high-resolution digital cameras, data loggers, embedded computers, and radio/cellular modems have advanced the development of sophisticated automated systems for remote imaging. Researchers have successfully placed and operated automated digital cameras in remote locations and in extremes of temperature and humidity, ranging from the islands of the South Pacific to the Mojave Desert and the Grand Canyon. With the integration of environmental sensors, these automated systems are able to respond to local conditions and modify their imaging regimes as needed. In this report we describe in detail the design of one type of automated imaging system developed by our group. It is easily replicated, low-cost, highly robust, and is a stand-alone automated camera designed to be placed in remote locations, without wireless connectivity.

Bogle, Rian; Velasco, Miguel; Vogel, John

2013-01-01

260

The astrophysics of crowded places.  

PubMed

Today the Sun is in a relatively uncrowded place. The distance between it and the nearest other star is relatively large (about 200,000 times the Earth-Sun distance!). This is beneficial to life on Earth; a close encounter with another star is extremely unlikely. Such encounters would either remove the Earth from its orbit around the Sun or leave it on an eccentric orbit similar to a comet's. But the Sun was not formed in isolation. It was born within a more-crowded cluster of perhaps a few hundred stars. As the surrounding gas evaporated away, the cluster itself evaporated too, dispersing its stars into the Galaxy. Virtually all stars in the Galaxy share this history, and here I will describe the role of 'clusterness' in a star's life. Stars are often formed in larger stellar clusters (known as open and globular clusters), some of which are still around today. I will focus on stars in globular clusters and describe how the interactions between stars in these clusters may explain the zoo of stellar exotica which have recently been observed with instruments such as the Hubble Space Telescope and the X-ray telescopes XMM-Newton and Chandra. In recent years, myriad planets orbiting stars other than the Sun--the so-called 'extrasolar' planets--have been discovered. I will describe how a crowded environment will affect such planetary systems and may in fact explain some of their mysterious properties. PMID:12626265

Davies, Melvyn

2002-12-15

261

2-D Drift Velocities from the IMAGE EUV Plasmaspheric Imager  

NASA Technical Reports Server (NTRS)

The IMAGE Mission extreme ultraviolet imager (EW) observes He(+) plasmaspheric ions throughout the inner magnetosphere. Limited by ionizing radiation and viewing close to the Sun, images of the He(+) distribution are available every 10 minutes for many hours as the spacecraft passes through apogee in its highly elliptical orbit. As a consistent constituent at about 15%, He(+) is an excellent surrogate for monitoring all of the processes that control the dynamics of plasmaspheric plasma. In particular, the motion of He' transverse to the ambient magnetic field is a direct indication of convective electric fields. The analysis of boundary motions has already achieved new insights into the electrodynamic coupling processes taking place between energetic magnetospheric plasmas and the ionosphere. Yet to be fulfilled, however, is the original promise that global E W images of the plasmasphere might yield two-dimensional pictures of mesoscale to macro-scale electric fields in the inner magnetosphere. This work details the technique and initial application of an IMAGE EUV analysis that appears capable of following thermal plasma motion on a global basis.

Gallagher, D. L.

2006-01-01

262

2-D Drift Velocities from the IMAGE EUV Plasmaspheric Imager  

NASA Technical Reports Server (NTRS)

The IMAGE Mission extreme ultraviolet imager (EUY) observes He+ plasmaspheric ions throughout the inner magnetosphere. Limited by ionizing radiation and viewing close to the Sun, images of the He+ distribution are available every 10 minutes for many hours as the spacecraft passes through apogee in its highly elliptical orbit. As a consistent constituent at about 15%, He+ is an excellent surrogate for monitoring all of the processes that control the dynamics of plasmaspheric plasma. In particular, the motion ofHe+ transverse to the ambient magnetic field is a direct indication of convective electric fields. The analysis of boundary motions has already achieved new insights into the electrodynamic coupling processes taking place between energetic magnetospheric plasmas and the ionosphere. Yet to be fulfilled, however, is the original promise that global EUY images of the plasmasphere might yield two-dimensional pictures of meso-scale to macro-scale electric fields in the inner magnetosphere. This work details the technique and initial application of an IMAGE EUY analysis that appears capable of following thermal plasma motion on a global basis.

Gallagher, D.; Adrian, M.

2007-01-01

263

Detail view of the port side of the aft fuselage ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

Detail view of the port side of the aft fuselage of the Orbiter Discovery in the transfer aisle of the Vehicle Assembly Building at Kennedy Space Center with a lifting frame attached to the aft attach points of the orbiter. In this view, the Orbiter Maneuvering/Reaction Control Systems pod is in place. Also note the darker-colored trapezoidal aft fuselage access door and the T-0 umbilical panel to its right in the view. - Space Transportation System, Orbiter Discovery (OV-103), Lyndon B. Johnson Space Center, 2101 NASA Parkway, Houston, Harris County, TX

264

Detail view of the flight deck looking aft. The aft ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

Detail view of the flight deck looking aft. The aft viewing windows are uncovered in this view and look out towards the payload bay. The overhead viewing windows have exterior covers in place in this view. The aft flight deck contains displays and controls for executing maneuvers for rendezvous, docking, payload deployment and retrieval, payload monitoring and the remote manipulator arm controls. Payload bay doors are also operated from this location. This view was taken in the Orbiter Processing Facility at the Kennedy Space Center. - Space Transportation System, Orbiter Discovery (OV-103), Lyndon B. Johnson Space Center, 2101 NASA Parkway, Houston, Harris County, TX

265

Details of Layers in Victoria Crater's Cape St. Vincent  

NASA Technical Reports Server (NTRS)

NASA's Mars Exploration Rover Opportunity rover spent about 300 sols (Martian days) during 2006 and 2007 traversing the rim of Victoria Crater. Besides looking for a good place to enter the crater, the rover obtained images of rock outcrops exposed at several cliffs along the way.

The cliff in this image from Opportunity's panoramic camera (Pancam) is informally named Cape St. Vincent. It is a promontory approximately 12 meters (39 feet) tall on the northern rim of Victoria crater, near the farthest point along the rover's traverse around the rim. Layers seen in Cape St. Vincent have proven to be among the best examples of meter scale cross-bedding observed on Mars to date. Cross-bedding is a geologic term for rock layers which are inclined relative to the horizontal and which are indicative of ancient sand dune deposits. In order to get a better look at these outcrops, Pancam 'super-resolution' imaging techniques were utilized. Super-resolution is a type of imaging mode which acquires many pictures of the same target to reconstruct a digital image at a higher resolution than is native to the camera. These super-resolution images have allowed scientists to discern that the rocks at Victoria Crater once represented a large dune field, not unlike the Sahara desert on Earth, and that this dune field migrated with an ancient wind flowing from the north to the south across the region. Other rover chemical and mineral measurements have shown that many of the ancient sand dunes studied in Meridiani Planum were modified by surface and subsurface liquid water long ago.

This is a Mars Exploration Rover Opportunity Panoramic Camera image acquired on sol 1167 (May 7, 2007), and was constructed from a mathematical combination of 16 different blue filter (480 nm) images.

2007-01-01

266

Grounding for a computational model of place  

E-print Network

Places are spatial locations that have been given meaning by human experience. The sense of a place is it's support for experiences and the emotional responses associated with them. This sense provides direction and focus ...

Hockenberry, Matthew Curtis

2006-01-01

267

Recognizing scene viewpoint using panoramic place representation  

E-print Network

We introduce the problem of scene viewpoint recognition, the goal of which is to classify the type of place shown in a photo, and also recognize the observer's viewpoint within that category of place. We construct a database ...

Xiao, Jianxiong

268

The Space Place: Slyder: The Art of Weather  

NSDL National Science Digital Library

The Space Place has created this interactive Slyder game to help you learn about Earth and Space weather. To play the game and solve the puzzle, you will move the tiles around until they are in the correct order and the picture is revealed. Each image has a short description to help you learn important scientific information. Each Slyder board is rated as easy, medium, or hard. Players choose which level to answer.

Diane Fisher

2008-03-18

269

Hi-C: A Detailed View of the Sun - Duration: 11 seconds.  

NASA Video Gallery

This 10-second movie includes imagery collected from the Atmospheric Imaging Assembly instrument flying on NASA's Solar Dynamics Observatory and Hi-C. Hi-Câ??s resolution is five times more detaile...

270

Using PlacesOnline in Instructional Activities  

ERIC Educational Resources Information Center

PlacesOnLine.org is a Web portal that provides easy access to high quality Web sites that focus on places from around the world. It is intended for use by a wide range of people, including professional geographers, teachers and students at all levels, and the general public. This article explores the potential uses of PlacesOnLine as an…

Longan, Michael W.; Owusu, Francis; Roseman, Curtis C.

2008-01-01

271

Anthropological Studies of Native American Place Names.  

ERIC Educational Resources Information Center

Traces development of Native American place name studies from Boas (1880s) to the present. Argues that place names convey information about physical environments but also reveal how people perceive, conceptualize, and utilize their environment. Suggests the utility of place names as a framework for cultural analysis and describes recent…

Thornton, Thomas F.

1997-01-01

272

The four Rs of place branding  

Microsoft Academic Search

The purpose of this paper is to discuss the concept of ownership in relation to place branding and to establish a basis upon which the representation of a place as a brand can be developed. We suggest that a bottom-up approach based on the paradigm of co-creation should be taken to developing a place brand and that brand ownership is

Robert Aitken; Adriana Campelo

2011-01-01

273

Literacy, Place and the Digital World  

ERIC Educational Resources Information Center

Observing that place may be understood in a range of sometimes conflicting ways, the paper picks up on recent work within literacy studies on notions of place-making and locational disadvantage to argue for increasingly sophisticated and reflexive uses of place in the field, as a counterpoint to both increasing educational standardisation and…

Green, Bill

2012-01-01

274

Northwest Literature and a Sense of Place.  

ERIC Educational Resources Information Center

Teachers should help students gain a sense of where they stand. It is difficult to imagine literature without a sense of place--places bridge time and evoke and recreate the past. To compose is to remember, to recreate, and a sense of place begins the composing. Some northwestern U.S. books illustrate the point. In a college literature class,…

Simonson, Harold P.

275

Radar Image, Hokkaido, Japan  

NASA Technical Reports Server (NTRS)

The southeast part of the island of Hokkaido, Japan, is an area dominated by volcanoes and volcanic caldera. The active Usu Volcano is at the lower right edge of the circular Lake Toya-Ko and near the center of the image. The prominent cone above and to the left of the lake is Yotei Volcano with its summit crater. The city of Sapporo lies at the base of the mountains at the top of the image and the town of Yoichi -- the hometown of SRTM astronaut Mamoru Mohri -- is at the upper left edge. The bay of Uchiura-Wan takes up the lower center of the image. In this image, color represents elevation, from blue at the lowest elevations to white at the highest. The radar image has been overlaid to provide more details of the terrain. Due to a processing problem, an island in the center of this crater lake is missing and will be properly placed when further SRTM swaths are processed. The horizontal banding in this image is a processing artifact that will be removed when the navigation information collected by SRTM is fully calibrated. This image was acquired by the Shuttle Radar Topography Mission (SRTM) aboard the Space Shuttle Endeavour, launched on February 11, 2000. SRTM used the same radar instrument that comprised the Spaceborne Imaging Radar-C/X-Band Synthetic Aperture Radar (SIR-C/X-SAR) that flew twice on the Space Shuttle Endeavour in 1994. SRTM was designed to collect three-dimensional measurements of the Earth's surface. To collect the 3-D data, engineers added a 60-meter-long (200-foot) mast, installed additional C-band and X-band antennas, and improved tracking and navigation devices. The mission is a cooperative project between the National Aeronautics and Space Administration (NASA), the National Imagery and Mapping Agency (NIMA) of the U.S. Department of Defense (DoD), and the German and Italian space agencies. It is managed by NASA's Jet Propulsion Laboratory, Pasadena, CA, for NASA's Earth Science Enterprise, Washington, DC. Size: 100 by 150 kilometers (62 by 93 miles) Location: 42.5 deg. North lat., 140.3 deg. East lon. Orientation: North towards upper left Image Data: SRTM Original Data Resolution: SRTM 30 meters (99 feet) Date Acquired: February 17, 2000

2000-01-01

276

National Standard Details Library An Electronic Library of Parametric CAD Details  

E-print Network

National Standard Details Library ­ An Electronic Library of Parametric CAD Details James Nyambayo the development of a demonstrator library of parameterised standard CAD Details on the Internet. The library of the project has been to develop a framework for the development of standard CAD details for specific areas

Amor, Robert

277

The Occipital Place Area Is Causally and Selectively Involved in Scene Perception  

E-print Network

Functional magnetic resonance imaging has revealed a set of regions selectively engaged in visual scene processing: the parahippocampal place area (PPA), the retrosplenial complex (RSC), and a region around the transverse ...

Dilks, Daniel D.

278

Architecture and urbanism in Henri IV's Paris : the Place Royale, Place Dauphine, and Hôpital St. Louis  

E-print Network

This dissertation concerns the extensive building program which Henri IV undertook in Paris from 1600 to 1610. Focusing on the place Royale (now called the place des Vosges) , the place Dauphine, rue Dauphine, and Pont ...

Ballon, Hilary Meg

1985-01-01

279

Historical consideration of place: inviting multiple histories and narratives in place-based education  

NASA Astrophysics Data System (ADS)

Drawing upon van Eijck and Roth's notion of "place as chronotope," this review paper discusses historical consideration of place as it assists us to conceptualize place in its collective, political, and dialogical nature. In a place, we are positioned amidst of the multiplicity of histories and narratives within ever shifting various contexts of place. Historical consideration acknowledges multiplicity and marginalization in a place, thus, legitimizes multiple place histories and invites multiple narratives to engage in dialogical process of place. With historical consideration, place identity can be approached and framed in its collective, dialogical nature within larger social, political contexts of place. The paper further suggests that place based education should be able to acknowledge and invite multiple histories and marginalized voices of students into creating a place to dwell together.

Lim, Miyoun

2010-12-01

280

High-throughput, detailed, cell-specific neuroanatomy of dendritic spines using microinjection and confocal microscopy  

Microsoft Academic Search

Morphological features such as size, shape and density of dendritic spines have been shown to reflect important synaptic functional attributes and potential for plasticity. Here we describe in detail a protocol for obtaining detailed morphometric analysis of spines using microinjection of fluorescent dyes, high-resolution confocal microscopy, deconvolution and image analysis with NeuronStudio. Recent technical advancements include better preservation of tissue,

Alfredo Rodriguez; John H Morrison; Dani Dumitriu

2011-01-01

281

The place of emplaced visualities: A case study of smartphone visuality and location-based social media in Shanghai, China  

Microsoft Academic Search

As camera phones become more commonplace in the explosion of smartphones – along with new contexts for image distribution like microblogging and location-based services (LBS) – we are witnessing emergent types of visuality. In particular, through LBS such as Facebook Places we see ways in which users create new contexts for the overlay between place, ambient images, and geographic locations.

Larissa Hjorth; Kay Gu

2012-01-01

282

Detailed geologic mapping of the Columbia Hills, Mars: West Spur to Cumberland Ridge  

NASA Astrophysics Data System (ADS)

The Columbia Hills in Gusev Crater is one of the most intensively studied regions on Mars. The Mars Exploration Rover (MER) Spirit has been investigating the Columbia Hills for over 5 years. During this time, Spirit has acquired thousands of images and spectroscopic observations from several outcrops and many soil samples and float rocks. The Hills exhibit a remarkable variety of textures and compositions, as indicated by diverse rock and soil types. Many studies of local regions within the Columbia Hills have been published from MER data, as have high-resolution Digital Elevation Models (DEMs) from the High Resolution Imaging Science Experiment (HiRISE) instrument on board the Mars Reconnaissance Orbiter (MRO). Additionally, the MRO Compact Reconnaissance Imaging Spectrometer for Mars (CRISM) instrument has acquired 13 hyperspectral observations of the Columbia Hills at 18m/pixel resolution. Previous work has had a spectroscopic and mineralogical focus, with sparsely-sampled structural measurements. To date, these data sets have not been integrated into a single detailed and comprehensive geologic map. We present a preliminary geologic map of the Columbia Hills. Our goal is to integrate observations from multiple instruments and spacecraft into a single map, illuminating the geographic context of geologic observations. Our study is unique in that we incorporate detailed structural measurements, localized stratigraphic sequences, and the footprints of remote sensing and in-situ observations. We also map the distribution of textures, such as vesicular vs. nodular rocks; small impact craters; probable flow margins; boundaries marking textural and color changes relating to differences in process and mineralogy; and the rover’s traverse path. We measure the strike and dip of planar features such as foliations and bedding planes from stereo-derived topography and provide estimates of the uncertainty in these measurements. We place the measurements in a regional geologic context in order to estimate the stratigraphic relationships between outcrops, and to compare structural attitudes to the local topography measured from the HiRISE DEM. Textures and possible impact craters are examined using Pancam, Navcam, and HiRISE images. Flow margins are estimated from both MER Pancam multispectral and HiRISE observations. Mineralogy is derived from rover and orbiter observations. By integrating many spectroscopic and imaging datasets obtained at different scales and mapping the geology in detail we can test hypotheses related to the formation and evolution of the Columbia Hills. Are the Hills primarily a volcanic construction, or are they a result of structural uplift from crater-forming processes? Were the carbonates, sulfates and diagenetic minerals discovered by Spirit the result of unrelated aqueous processes, or were they part of the same hydrothermal event? How are the modification processes shaping the evolution of the Hills different from what occurs on the surrounding plains?

Cole, S. B.; Watters, W. A.; Rice, M. S.; Squyres, S. W.

2010-12-01

283

Detail preserving exposure fusion for a dual sensor camera  

NASA Astrophysics Data System (ADS)

Dual sensor cameras are widely used to capture multi-exposure image of high dynamic range scene without ghost effect. The local details and luminance contrast can not be achieved well at the same time by conventional exposure fusion. A novel technique of exposure fusion is proposed to balance the local details and global luminance adaptively for dual sensor camera. Such fusion weight map is calculated by a new down-up-sampling method. And then, a guided filter is employed to refine the weight map and exposure fusion is realized using pixel by pixel approach. Finally, multiple experiments are carried out and six common exposure fusion algorithms are compared to verify the proposed exposure fusion technique. The experimental results show that the proposed method performs excellently and robustly with highest spatial frequency and visual fidelity.

Chen, Kuo; Chen, Yueting; Feng, Huajun; Xu, Zhihai

2014-11-01

284

16 CFR 1750.5 - Detailed requirements.  

Code of Federal Regulations, 2011 CFR

...1750.5 Section 1750.5 Commercial Practices CONSUMER PRODUCT SAFETY COMMISSION REFRIGERATOR SAFETY ACT REGULATIONS STANDARD FOR DEVICES TO PERMIT THE OPENING OF HOUSEHOLD REFRIGERATOR DOORS FROM THE INSIDE § 1750.5 Detailed...

2011-01-01

285

16 CFR 1750.5 - Detailed requirements.  

Code of Federal Regulations, 2014 CFR

...1750.5 Section 1750.5 Commercial Practices CONSUMER PRODUCT SAFETY COMMISSION REFRIGERATOR SAFETY ACT REGULATIONS STANDARD FOR DEVICES TO PERMIT THE OPENING OF HOUSEHOLD REFRIGERATOR DOORS FROM THE INSIDE § 1750.5 Detailed...

2014-01-01

286

16 CFR 1750.5 - Detailed requirements.  

Code of Federal Regulations, 2012 CFR

...1750.5 Section 1750.5 Commercial Practices CONSUMER PRODUCT SAFETY COMMISSION REFRIGERATOR SAFETY ACT REGULATIONS STANDARD FOR DEVICES TO PERMIT THE OPENING OF HOUSEHOLD REFRIGERATOR DOORS FROM THE INSIDE § 1750.5 Detailed...

2012-01-01

287

16 CFR 1750.5 - Detailed requirements.  

Code of Federal Regulations, 2013 CFR

...1750.5 Section 1750.5 Commercial Practices CONSUMER PRODUCT SAFETY COMMISSION REFRIGERATOR SAFETY ACT REGULATIONS STANDARD FOR DEVICES TO PERMIT THE OPENING OF HOUSEHOLD REFRIGERATOR DOORS FROM THE INSIDE § 1750.5 Detailed...

2013-01-01

288

16 CFR 1750.5 - Detailed requirements.  

Code of Federal Regulations, 2010 CFR

...1750.5 Section 1750.5 Commercial Practices CONSUMER PRODUCT SAFETY COMMISSION REFRIGERATOR SAFETY ACT REGULATIONS STANDARD FOR DEVICES TO PERMIT THE OPENING OF HOUSEHOLD REFRIGERATOR DOORS FROM THE INSIDE § 1750.5 Detailed...

2010-01-01

289

Global detailed geoid computation and model analysis  

NASA Technical Reports Server (NTRS)

Comparisons and analyses were carried out through the use of detailed gravimetric geoids which we have computed by combining models with a set of 26,000 1 deg x 1 deg mean free air gravity anomalies. The accuracy of the detailed gravimetric geoid computed using the most recent Goddard earth model (GEM-6) in conjunction with the set of 1 deg x 1 deg mean free air gravity anomalies is assessed at + or - 2 meters on the continents of North America, Europe, and Australia, 2 to 5 meters in the Northeast Pacific and North Atlantic areas, and 5 to 10 meters in other areas where surface gravity data are sparse. The R.M.S. differences between this detailed geoid and the detailed geoids computed using the other satellite gravity fields in conjuction with same set of surface data range from 3 to 7 meters.

Marsh, J. G.; Vincent, S.

1974-01-01

290

Principle of Detailed Balance in Kinetics  

ERIC Educational Resources Information Center

The effects of the detailed balance on chemical kinetics on the chemical monomolecular triangle reactions are illustrated. A simple experiment that illustrates oscillations, limit cycles, bifurcations and noise are illustrated along with the oscillating reactions.

Alberty, Robert A.

2004-01-01

291

Contact Details Journeying Beyond Breast Cancer  

E-print Network

Home About Contact Details Facebook Search Journeying Beyond Breast Cancer making sense Melissa Etheridge promotes breast cancer awareness CSI Breast Cancer Blogroll Being Cancer Debbie's Cancer Women with Cancer Breast Cancer Resources Breast Cancer Alltop Breast Cancer Sisterhood Europa Donna

Espinosa, Horacio D.

292

Sense of Place in the Practice and Assessment of Place-Based Science Teaching  

ERIC Educational Resources Information Center

We teach earth, ecological, and environmental sciences in and about "places" imbued with meaning by human experience. Scientific understanding is but one of the many types of meanings that can accrue to a given place. People develop emotional attachments to meaningful places. The "sense of place," encompassing the meanings and attachments that…

Semken, Steven; Freeman, Carol Butler

2008-01-01

293

Image, Image, Image  

ERIC Educational Resources Information Center

With all the talk today about accountability, budget cuts, and the closing of programs in public education, teachers cannot overlook the importance of image in the field of industrial technology. It is very easy for administrators to cut ITE (industrial technology education) programs to save school money--money they might shift to teaching the…

Howell, Robert T.

2004-01-01

294

Simulating plant motion with levels of detail  

E-print Network

: Engineering & Physics I ABSTRACT Simulating Plant Motion With Levels of Detail. (April 2003) Rebecca Lynn Flannery Department of Computer Science Texas A&M University Fellows Advisor: Dr. John Keyser Department of Computer Science Levels of detail... VITA Rebecca Lynn Flannery 5443 Rutherglenn Houston, TX 77096 Education B. S. Computer Science Texas A&M University May 2003 Honors TAMU Distinguished Student in engineering. TAMU/Barnes & Noble Academic Excellence Scholarship. Texas A...

Flannery, Rebecca Lynn

2013-02-22

295

Simulation levels of detail for plant motion  

E-print Network

SIMULATION LODS . . . 18 Run-time Error Bounds Transittoning Between LODs. Combining Simulation and Geometric LODs . . . . . 18 19 . . . . 21 IMPLEMENTATION AND RESULTS . . . . . CONCLUSION . . . . . . 23 . . . . 26 REFERENCES VITA . . . . 3 1...) are the animation analog to geometric levels of detail. With geometric I. ODs, simplified geometric representations requiring less This thesis follows the style and format of ACM Transactions on Graphic?. rendering time (but providing less detail) replace...

Beaudoin, Jacob Michael

2013-02-22

296

Sacred spaces, healing places: therapeutic landscapes of spiritual significance.  

PubMed

Understandings of the relationship between space, culture and belief are formative in the experience of seeking healing. This paper examines the relationship between place, healing and spirituality in the context of interdisciplinary perspectives (particularly those of the medical humanities) on healing and well-being. The paper examines places of spiritual significance and their relationship to healing in the 'uncertain' quest for alleviation or cure, exploring these thematics in the context of the work on the geographies of 'therapeutic landscapes.' Through a discussion of fieldwork at two sites in Perthshire, Scotland, a framework is proposed for the investigation of therapeutic sites of spiritual significance, detailing features such as connection, renewal, reproduction, participation, alleviation and expectation. A deeper examination of sites of healing with spiritual significance, it is proposed, has the potential to develop greater understandings of the ways in which people experience illness and well-being. PMID:25503270

Perriam, Geraldine

2015-03-01

297

Contrast-detail characteristic evaluations of several display devices.  

PubMed

The contrast-detail characteristic of a display system is a powerful tool for evaluating displayed image quality. It takes into account the physical properties of the display, the psychophysical aspects of the observer, and the viewing conditions. It is a more sensitive measurement of the displayed image quality than a simple Society of Motion Picture and Television (SMPTE) pattern. Yet, it is relatively simple to measure and requires no special equipment or analysis tools. In this presentation, the results of the evaluation of several cathode ray tube (CRT) monitors and a digital projector will be presented. Contrast-detail characteristics of these display devices were measured under various gamma and display settings. The results show excellent intraobserver and interobserver variance (<1 step on the grayscale). Extraneous light, such as room lighting, affects the contrast threshold more severely at low background levels more than at high background. Gamma settings on graphics adapters affect the shapes of the contrast-detail curve for all display types. Gamma settings of approximately 2.0 result in a better contrast threshold for both high and low background brightness. The results show complex differences in contrast-detail characteristics for different display types. The digital projector display not only has significantly worse performance than CRT monitors, but also is affected more by extraneous light. High-brightness monitors with optimal monitor and graphics adapter settings have better performance than color or low-brightness monitors. However, under some settings, the performance of high-brightness monitors is not always better at all object sizes and background levels. PMID:10847389

Wang, J; Anderson, J; Lane, T; Stetson, C; Moore, J

2000-05-01

298

The WorkPlace distributed processing environment  

NASA Technical Reports Server (NTRS)

Real time control problems require robust, high performance solutions. Distributed computing can offer high performance through parallelism and robustness through redundancy. Unfortunately, implementing distributed systems with these characteristics places a significant burden on the applications programmers. Goddard Code 522 has developed WorkPlace to alleviate this burden. WorkPlace is a small, portable, embeddable network interface which automates message routing, failure detection, and re-configuration in response to failures in distributed systems. This paper describes the design and use of WorkPlace, and its application in the construction of a distributed blackboard system.

Ames, Troy; Henderson, Scott

1993-01-01

299

EarthShots: Satellite Images of Environmental Change  

NSDL National Science Digital Library

EarthShots is an e-book of images (1972-present) showing recent environmental events through remotely sensed images while also introducing remote sensing techniques. Place-specific case studies offer before-and-after satellite imagery as well as descriptive text. Examples of case studies include agriculture along the Nile River Delta, urban development as it impacts the hydrology of the Imperial Valley in California, desertification in Southern Mauritania, the disastrous effects of the Mount St. Helens eruption in Washington, and glacial activity in Hubbard Glacier, Alaska. A world map allows users to access these instances of environmental change by geographic area. Information on remote sensing technology and an overview of the site is provided by a Garden City, Kansas case study. Each set of images and text are accompanied by a political/topographic map of the area, detailed information pertaining to the source of the satellite images and maps, and relevant references.

2001-01-12

300

The Greater India beneath Tibet: A detailed new seismic mapping  

NASA Astrophysics Data System (ADS)

The Greater India is a continent that existed before the India-Asia collision and comprised today's Indian subcontinent and its extension to the north, by now consumed in the collision. The size, shape, and evolution of the Greater India are a matter of a heated debate, from its place in the make-up of Gondwana to its rapid northward drift and evolution following the break-up of the supercontinent and to its eventual collision with Eurasia. How the India-Asia collision has been accommodated (how much of the continental Indian lithosphere has been consumed and what happened to it) is an important unresolved problem in itself, the proposed solutions including: underthrusting of India beneath Tibet; northward subduction of India; viscous thickening of the Indian and Asian lithospheres beneath Tibet; viscous thickening followed by convective removal; lateral extrusion of chunks of Greater India eastwards; slicing and sinking of the Greater India's lithosphere beneath the Himalayas. Body-wave seismic tomography shows the remnants of the subducted lithosphere of the ancient Tethys Ocean, now in the lower mantle, and the more recently subducted lithosphere of the Indian Plate around the transition-zone depths. In the lithosphere-asthenosphere depth range, however, the properties and even the presence of Indian lithosphere in the upper mantle beneath Tibet are debated. Whereas surface-wave tomographic models typically show a high-velocity anomaly beneath much of Tibet at around 200 km depth, many body-wave models do not show high-velocity anomalies under most of the plateau, prompting very different interpretations. Here we determine the morphology of the Indian lithosphere beneath Tibet using a combination of large-scale waveform tomography (based on a new, unprecedentedly large global dataset) and of surface-wave array analysis in Tibet. The Greater Indian lithosphere is present (underthrusting or subducting) beneath much of Tibet. There are marked differences in the properties of the Greater Indian lithosphere and in the mechanism of its descent beneath different parts of the plateau. In the west, cratonic Indian lithosphere underthrusts the Tibetan crust and collides with the Tarim Craton to the north of it. In the central part of the plateau, Indian lithosphere underthrusts Tibet form the Himalayas up to the Bangong-Nujiang Suture and then, further north, subducts at a relatively steep angle. Indian lithosphere now under the east-central Himalayas is not cratonic (not as thick and cold as in the west). Beneath eastern Tibet, the Indian lithosphere has subducted, at a shallow angle, hundreds of kilometers northwards to under the Qiangtang and Songpan-Ganzi Terranes. The detailed new seismic images provide new constraints on the size of the Greater India continent and on lateral variations in the properties of its lithosphere. The size and shape of the Greater India as evidenced by the seismic data are consistent with the recent plate-tectonic models in which the India-Asia hard continental collision commences more recently than previously thought. References Agius, M. R., S. Lebedev. Tibetan and Indian lithospheres in the upper mantle beneath Tibet: Evidence from broadband surface-wave dispersion. Geochem. Geophys. Geosyst. 14, doi:10.1002/ggge.20274, 2013. Schaeffer, A. J., S. Lebedev. Global shear-speed structure of the upper mantle and transition zone. Geophys. J. Int. 194, 417-449, 2013. Van Hinsbergen, D. J. J., et al., Greater India Basin hypothesis and a two-stage Cenozoic collision between India and Asia., Proc. Natl. Acad. Sci. USA 109, 7659-64, 2012. Zahirovic, S., et al., Insights on the kinematics of the India-Eurasia collision from global geodynamic models, Geochem. Geophys. Geosyst. 13, doi:10.1029/2011GC003883, 2012.

Lebedev, Sergei; Schaeffer, Andrew; Agius, Matthew

2014-05-01

301

Visual Place Recognition with Repetitive Structures Akihiko Torii Josef Sivic Tomas Pajdla Masatoshi Okutomi  

E-print Network

images depicting the same scene [4, 6]; (iv) exploiting the 3D or graph structure of the database [11, 20 or more images in the geotagged database depicting the same place. The ability to visually recognize of Science and Engineering, Tokyo Institute of Technology WILLOW project, Laboratoire d'Informatique de l

Paris-Sud XI, Université de

302

The structure of images  

Microsoft Academic Search

In practice the relevant details of images exist only over a restricted range of scale. Hence it is important to study the dependence of image structure on the level of resolution. It seems clear enough that visual perception treats images on several levels of resolution simultaneously and that this fact must be important for the study of perception. However, no

Jan J. Koenderink

1984-01-01

303

What are Satellite Images?  

NSDL National Science Digital Library

This is an activity about image analysis. Learners will create a map of the room and discuss the perspectives shown in their drawings and how this relates to satelite images. Participants brainstorm a list of features that might be recognizable in satellite photos, search the Earth Images for these features, and place the images in categories depicting these features. This is activity 2 of 9 in Mars and Earth: Science Learning Activities for After School.

2012-12-28

304

Magnificent Details in a Dusty Spiral Galaxy  

NSDL National Science Digital Library

The spiral galaxy NGC 4414 was first imaged by the Hubble Space Telescope over the course of two months in 1995. However, due to its large size, only half of the galaxy was visible in the datasets collected. This year the Hubble team returned to NGC 4414 and completed the portrait. The results, recently released online, are some beautiful images of a dusty spiral galaxy containing older yellow and red stars in the center and young blue stars in the spiral arms. Users can view the images in several formats and sizes.

305

Image transfer protocol in progressively increasing resolution  

NASA Technical Reports Server (NTRS)

A method of transferring digital image data over a communication link transforms and orders the data so that, as data is received by a receiving station, a low detail version of the image is immediately generated with later transmissions of data providing progressively greater detail in this image. User instructions are accepted, limiting the ultimate resolution of the image or suspending enhancement of the image except in certain user defined regions. When a low detail image is requested followed by a request for a high detailed version of the same image, the originally transmitted data of the low resolution image is not discarded or retransmitted but used with later data to improve the originally transmitted image. Only a single copy of the transformed image need be retained by the transmitting device in order to satisfy requests for different amounts of image detail.

Percival, Jeffrey W. (Inventor); White, Richard L. (Inventor)

1999-01-01

306

A Pet's Place University of Illinois  

E-print Network

A Pet's Place University of Illinois College of Veterinary Medicine vetmed Clinic *A Pet's Place Course Records Men: Eric Ollila, 15:54 (1995) Women: Jenny Marine, 19:04 (1994) See like to participate in the: _____5K run _____5K pet run _____5K walk _____5K pet walk Please check one

Jain, Kanti

307

Facebook Application for Place Recommendation . . 40002  

E-print Network

Facebook Application for Place Recommendation 1 , 2 1,2 . . 40002 E-mail: 1,2 pjiranuwatt. This article proposes a Facebook application that recommends places based on the number of check is gathered via Facebook API requests. The experimental results of the developed Facebook application show

Runapongsa, Kanda

308

Changing Places: Contexts of Awareness in Computing  

Microsoft Academic Search

By allowing any social institution to structure activity in any place, wireless information services break down the traditional mapping between institutions and places. This phenomenon greatly complicates the analysis of context for purposes of designing context-aware computing systems. Context has a physical, architectural aspect, but most aspects of context will also be defined in institutional terms. This paper develops two

Philip E. Agre

2001-01-01

309

Can I Put You in Your Place?  

NSDL National Science Digital Library

"Students play a game that allows them to place number cards in an order to make the least three digit number possible using place value. Students compare these numbers with a partner to see who has the least three digit number." (from Beacon Learning Center)

Beacon Learning Center

2009-03-18

310

Classrooms as Safe Places To Be Wrong.  

ERIC Educational Resources Information Center

This paper contends that classrooms should be safe places for students and their teachers to be wrong, suggesting that this concept should provide the mainspring for educational reform in Hong Kong and in other places in the world. It notes that education in Hong Kong is harsh and has a tendency to label students; for the majority of students,…

Sankey, Derek

311

Coloring in the Emotional Language of Place  

ERIC Educational Resources Information Center

Making educational places more inviting to learners is a key aspect of Invitational Theory. This paper introduces a simple technique for sensitizing learners and instructors to how their environment affects their feelings and ability to learn. It describes a learning exercise that may be used to assess, evaluate and transform places, to promote…

Haigh, Martin

2008-01-01

312

Section 2--Psychology in Its Place  

ERIC Educational Resources Information Center

In 1996, Graham Richards published "Putting Psychology in its Place: An introduction from a critical historical perspective." Here, I seek to consider what is or should be the "place" of Psychology in education, more particularly Higher Education, and not just from a historical perspective. This raises issues about several contexts in which…

Radford, John

2008-01-01

313

Finding similar places using the observation-to-generalization place model  

NASA Astrophysics Data System (ADS)

In this article, a novel observation-to-generalization place model is proposed. It is shown how this model can be used to formally define the problem of finding geographically similar places. The observation-to-generalization model differentiates between observations of phenomena in the environment at a specific location and time, and generalizations about places that are inferred from these observations. A suite of operations is defined to find similar places based on the invariance of generalized place properties, and it is demonstrated how these functions can be applied to the problem of finding similar places based on the topics that people write about in place descriptions. One use for similar-place search is for exploratory research that will enable investigators to perform case-control studies on place data.

Adams, Benjamin

2015-03-01

314

Abdominal ultrasound (image)  

MedlinePLUS

Abdominal ultrasound is a scanning technique used to image the interior of the abdomen. Like the X-ray, MRI, ... it has its place as a diagnostic tool. Ultrasound scans use high frequency sound waves to produce ...

315

Picturing the wheatbelt: exploring and expressing place identity through photography.  

PubMed

Community arts and cultural development is a process that builds on and responds to the aspirations and needs of communities through creative means. It is participatory and inclusive, and uses multiple modes of representation to produce local knowledge. 'Voices' used photography and photo elicitation as the medium for exploring and expressing sense of place among Aboriginal and non-Indigenous children, young people and adults in four rural towns. An analysis of data generated by the project shows the diverse images that people chose to capture and the different meanings they afforded to their pictures. These meanings reflected individual and collective constructions of place, based on positive experiences and emotions tied to the natural environment and features of the built environment. We discuss community arts and cultural development practice with reference to creative visual methodologies and suggest that it is an approach that can contribute to community psychology's empowerment agenda. PMID:25325930

Sonn, Christopher C; Quayle, Amy F; Kasat, Pilar

2015-03-01

316

Digging Deep for Dino Details and Discussion  

NSDL National Science Digital Library

In this unit, students will identify appropriately leveled informational text on dinosaurs and identify the key details of the text. The students will create a detail web using evidence from the text and will then write an explanatory paper about their choice of dinosaur. The students will also participate in a guided class discussion. The students will learn the guidelines and procedures for successful discussion and will also learn how to come prepared for discussion by providing supporting information from texts that have been read.

2013-01-30

317

Echo states for detailed fluctuation theorems  

NASA Astrophysics Data System (ADS)

Detailed fluctuation theorems are statements about the probability distribution for the stochastic entropy production along a trajectory. It involves the consideration of a suitably transformed dynamics, such as the time reversed, the adjoint, or a combination of these. We identify specific, typically unique, initial conditions, called echo states, for which the final probability distribution of the transformed dynamics reproduces the initial distribution. In this case the detailed fluctuation theorems relate the stochastic entropy production of the direct process to that of the transformed one. We illustrate our results by an explicit analytical calculation and numerical simulations for a modulated two-state quantum dot.

Becker, T.; Willaert, T.; Cleuren, B.; Van den Broeck, C.

2015-01-01

318

A Detailed Spectroscopic Analysis of The EQ Pegasi System  

NASA Astrophysics Data System (ADS)

EQ Pegasi (GJ 896, HIP 116132 ) is a resolved binary system comprised of mid-M dwarfs at a distance of only 6.2 pc. The system has been studied extensively over a broad range of wavelengths from the X-ray to the radio. These observations reveal both components are variable, flare, and exhibit high levels of magnetic activity. The pair were recently proposed as members of a nearby young kinematic association on the basis of consistent Galactic kinematics, strong X-ray emission, and color-magnitude diagram position. Thus, they may be the closest pre-main-sequence system to the Sun. Here we present a detailed analysis of EQ Peg A and B using medium resolution spectra covering ~0.5-2.5 microns. We investigate spectral types, chromospheric activity indicators, lithium depletion, and gravity sensitive alkali lines and molecular bands to characterize the system and place constraints on its age.

Schlieder, Joshua E.; Murphy, Simon; Riedel, Adric R.

2015-01-01

319

SUV Tracks On Mars? The 'Devil' is in the Details  

NASA Technical Reports Server (NTRS)

Sport Utility Vehicles (SUVs) on Mars? Imagine the MOC imaging team's surprise on the morning of April 27, 1998, as the latest images came in from the 'Red Planet.'

A picture taken by the camera on Mars Global Surveyor just one day earlier showed several thin, dark lines that--at first glance--looked like pathways blazed by off-road sport utility vehicles. Who's been driving around on Mars?

The MOC image in question (#26403), seen here at full resolution of 13.8 meters (45 feet) per pixel, was obtained around 10:22 a.m. PDT on April 26, 1998, during Mars Global Surveyor's 264th orbit. North is approximately up, illumination is from the lower right. Located in eastern Arabia Terra near 16.5o N latitude, 311.4o W longitude, the image showed a number of natural features--small craters formed by meteor impact, several buttes and mesas left by erosion of the surrounding terrain, small dunes and drifts, and a mantle of dust that varies in thickness from place to place. But the new picture also showed two dark lines--each varying in width up to about 15 meters (49 feet)--that extended several kilometers/miles across the image.

Lines like these have been seen before on Mars. They are most likely the result of dust devils--columnar vortices of wind that move across the landscape, pick up dust, and look somewhat like miniature tornadoes. Dust devils are a common occurrence in dry and desert landscapes on Earth as well as Mars. They form when the ground heats up during the day, warming the air immediately above the surface. As pockets of warm air rise and interfere with one another, they create horizontal pressure variations that, combined with other meteorological winds, cause the upward moving air to spin (the direction of the spin is controlled by the same Coriolis forces that cause terrestrial hurricanes to spin in specific directions). As the spinning column of air moves across the surface, it occasionally encounters dust on the surface, which it can suck upward. This dust rises into the spinning air, giving the appearance of a tornado-like column that moves across the landscape. As the column of air moves, its ability to pick up dust varies--sometimes they hold a lot of dust and are nearly opaque; sometimes you cannot even see them. Dust-devils rarely last long, since their very motion changes the conditions that allowed them to form in the first place.

Mars Pathfinder detected the passage of several dust devils during its 83 days of operation on Mars in 1997. Mariner 9 and the Viking landers and orbiters of the 1970s also found evidence that dust devils occur on Mars; indeed, some Viking Orbiter images actually show dust devil clouds. MOC image 26403 is the latest entry in the body of evidence for the work of wind in the modern martian environment. The MOC Science Team is continuing to study these and other streaks caused by wind interacting with the martian surface.

Malin Space Science Systems and the California Institute of Technology built the MOC using spare hardware from the Mars Observer mission. MSSS operates the camera from its facilities in San Diego, CA. The Jet Propulsion Laboratory's Mars Surveyor Operations Project operates the Mars Global Surveyor spacecraft with its industrial partner, Lockheed Martin Astronautics, from facilities in Pasadena, CA and Denver, CO.

1998-01-01

320

Image and information management system  

NASA Technical Reports Server (NTRS)

A system and methods through which pictorial views of an object's configuration, arranged in a hierarchical fashion, are navigated by a person to establish a visual context within the configuration. The visual context is automatically translated by the system into a set of search parameters driving retrieval of structured data and content (images, documents, multimedia, etc.) associated with the specific context. The system places ''hot spots'', or actionable regions, on various portions of the pictorials representing the object. When a user interacts with an actionable region, a more detailed pictorial from the hierarchy is presented representing that portion of the object, along with real-time feedback in the form of a popup pane containing information about that region, and counts-by-type reflecting the number of items that are available within the system associated with the specific context and search filters established at that point in time.

Robertson, Tina L. (Inventor); Raney, Michael C. (Inventor); Dougherty, Dennis M. (Inventor); Kent, Peter C. (Inventor); Brucker, Russell X. (Inventor); Lampert, Daryl A. (Inventor)

2009-01-01

321

Image and information management system  

NASA Technical Reports Server (NTRS)

A system and methods through which pictorial views of an object's configuration, arranged in a hierarchical fashion, are navigated by a person to establish a visual context within the configuration. The visual context is automatically translated by the system into a set of search parameters driving retrieval of structured data and content (images, documents, multimedia, etc.) associated with the specific context. The system places hot spots, or actionable regions, on various portions of the pictorials representing the object. When a user interacts with an actionable region, a more detailed pictorial from the hierarchy is presented representing that portion of the object, along with real-time feedback in the form of a popup pane containing information about that region, and counts-by-type reflecting the number of items that are available within the system associated with the specific context and search filters established at that point in time.

Robertson, Tina L. (Inventor); Raney, Michael C. (Inventor); Dougherty, Dennis M. (Inventor); Kent, Peter C. (Inventor); Brucker, Russell X. (Inventor); Lampert, Daryl A. (Inventor)

2007-01-01

322

LODESTAR: An Octree-Based Level Of Detail Generator For VRML Dieter Schmalstieg  

E-print Network

data in VRML format. We report an algorithm called LODESTAR, based on octree quantization that robustly to simplify geometric models, but they generally place assumptions on the data that hamper their application of generating levels of detail for input data that comes in VRML format is all but trivial. This situation

323

Exterior direct detail view of 2nd floor balcony at west ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

Exterior direct detail view of 2nd floor balcony at west side of Building 6, showing curved concrete rail and tapered concrete column, looking north - North Beach Place, 401 Bay Street, 500 Francisco Street, 401 Bay Street, 500 Francisco Street, San Francisco, San Francisco County, CA

324

MRI of the brain (image)  

MedlinePLUS

An MRI (magnetic resonance imaging) of the brain creates a detailed image of the complex structures in the brain. An MRI can give a three-dimensional depiction of the brain, making location of problems ...

325

Big Heads, Small Details and Autism  

ERIC Educational Resources Information Center

Autism is thought to be associated with a bias towards detail-focussed processing. While the cognitive basis remains controversial, one strong hypothesis is that there are high processing costs associated with changing from local into global processing. A possible neural mechanism underlying this processing style is abnormal neural connectivity;…

White, Sarah; O'Reilly, Helen; Frith, Uta

2009-01-01

326

Robust detail-preserving signal extraction  

Microsoft Academic Search

We discuss robust filtering procedures for signal extraction from noisy time series. Particular attention is paid to the preservation of relevant signal details like abrupt shifts. moving averages and running medians are widely used but have shortcomings when large spikes (outliers) or trends occur. Modifications like modified trimmed means and linear median hybrid filters combine advantages of both approaches, but

Ursula Gather; Roland Fried; Vivian Lanius

2005-01-01

327

Detailed Chemical Kinetic Modeling of Cyclohexane Oxidation  

Microsoft Academic Search

A detailed chemical kinetic mechanism has been developed and used to study the oxidation of cyclohexane at both low and high temperatures. Reaction rate constant rules are developed for the low temperature combustion of cyclohexane. These rules can be used for in chemical kinetic mechanisms for other cycloalkanes. Since cyclohexane produces only one type of cyclohexyl radical, much of the

E J Silke; W J Pitz; C K Westbrook; M Ribaucour

2006-01-01

328

Detailed chemical kinetic modeling of butylbenzene pyrolysis  

Microsoft Academic Search

The gas phase pyrolysis of butylbenzene is modeled using a detailed chemical kinetic approach. A 60-reaction, free radical mechanism is used. The thermodynamics of the chemical species and the kinetic rate parameters for the reactions are taken from the literature or estimated from closely related species or reactions. There was no fitting of these parameters to better match the butylbenzene

H. Freund; W. N. Olmstead

1988-01-01

329

Occupation Competency Profile: Steel Detailer Program.  

ERIC Educational Resources Information Center

This document presents information about the apprenticeship training program of Alberta, Canada, in general and the steel detailer program in particular. The first part of the document discusses the following items: Alberta's apprenticeship and industry training system; the apprenticeship and industry training committee structure; local…

Alberta Learning, Edmonton. Apprenticeship and Industry Training.

330

Process Detail* 1. Reconcile Carrier Delivery  

E-print Network

Contact Stamp on Packing Slip 5a. Exceptional Process · Copy One Original Log For Each Exception · AttProcess Detail* 1. Reconcile Carrier Delivery 1. Count packages received, reconcile any differences package (one order at a time), Date Stamp and Contact Stamp. 5. Note PO#, # of packages shipped, Carrier

California at Irvine, University of

331

On interactions between routing and detailed placement  

Microsoft Academic Search

The main goal of this paper is to develop deeper insights into viable placement-level optimization of routing. Two pri- mary contributions are made. First, an experimental frame- work in which the viability of predictive models of routing congestion for optimization during detailed placement can be evaluated, is developed. The main criteria of considera- tion in these experiments is how (un)reliably

Devang Jariwala; John Lillis

2004-01-01

332

College Timetable Representatives College Contact Contact Details  

E-print Network

College Timetable Representatives College Contact Contact Details Adult Continuing Education Fran Lloyd F.J.Lloyd@swansea.ac.uk College of Arts & Humanities Ruth Lake R.Lake@swansea.ac.uk College of Engineering Tracey Bailey T.Bailey@swansea.ac.uk College of Human & Health Science SHSRoom

Harman, Neal.A.

333

Details on the biography of Jerzy Neyman  

NASA Astrophysics Data System (ADS)

Details on the biography of Jerzy Neyman (1894-1981) and a short outline of the native town Tighina in Basarabia (the Republic of Moldova) of the outstanding mathematician and statistician, astronomer, meteorologist, biologist, philosopher and sociologist, founder of the mathematical theory of selection has been given.

Gaina, Alex

2003-04-01

334

Additional reimbursement details are available on the  

E-print Network

Watchers® traditional or Weight Watchers at-work programs, and hospital-based weight loss programs. Be sureLearn More Additional reimbursement details are available on the Weight Loss Reimbursement Form: Save up to $150 on a Weight Loss program and Save up to $150 on the Fitness Reimbursement program 2 1

Huang, Jianyu

335

A comparative contrast-detail study of five medical displays.  

PubMed

The objective of this study was to compare the contrast-detail performance of five different commercial liquid crystal displays (LCDs) to other LCD and cathode-ray tube (CRT) displays for medical applications. A contrast-detail phantom, supplemented with 5 in. of acrylic, was imaged on a commercial digital radiographic system using techniques comparable to chest radiography. The phantom design enabled observer evaluation by a four-alternative forced choice paradigm. The acquired images were independently scored by five observers on five medical display devices: a 5 megapixel monochrome LCD, a 3 megapixel monochrome LCD, a 9 megapixel color LCD, a 5 megapixel monochrome CRT, and a mammographic-grade monochrome CRT. The data were analyzed using the method suggested by the manufacturer based on a nearest neighbor correction technique. They were further analyzed using a logistic regression response model with a natural threshold using an overall chi-square test for display type followed by pairwise comparisons for individual display performance. The differences between the display devices were small. The standard analysis of the results based on the manufacturer-recommended method did not yield any statistically discernible trend among displays. The logistic regression analysis, however, indicated that the 5 megapixel monochrome LCD was statistically significantly (p <0.0001) superior to the others, followed by the 3 megapixel monochrome LCD (p<0.0001). The three other displays exhibited lower but generally similar performance characteristics. The findings suggest that 5 and 3 megapixel monochrome LCDs provide comparable but subtly superior contrast detectability than other tested displays, with the former performing slightly better in the detection of subtle and fine details. PMID:18491530

Samei, Ehsan; Ranger, Nicole T; Delong, David M

2008-04-01

336

A comparative contrast-detail study of five medical displays  

SciTech Connect

The objective of this study was to compare the contrast-detail performance of five different commercial liquid crystal displays (LCDs) to other LCD and cathode-ray tube (CRT) displays for medical applications. A contrast-detail phantom, supplemented with 5 in. of acrylic, was imaged on a commercial digital radiographic system using techniques comparable to chest radiography. The phantom design enabled observer evaluation by a four-alternative forced choice paradigm. The acquired images were independently scored by five observers on five medical display devices: a 5 megapixel monochrome LCD, a 3 megapixel monochrome LCD, a 9 megapixel color LCD, a 5 megapixel monochrome CRT, and a mammographic-grade monochrome CRT. The data were analyzed using the method suggested by the manufacturer based on a nearest neighbor correction technique. They were further analyzed using a logistic regression response model with a natural threshold using an overall chi-square test for display type followed by pairwise comparisons for individual display performance. The differences between the display devices were small. The standard analysis of the results based on the manufacturer-recommended method did not yield any statistically discernible trend among displays. The logistic regression analysis, however, indicated that the 5 megapixel monochrome LCD was statistically significantly (p<0.0001) superior to the others, followed by the 3 megapixel monochrome LCD (p<0.0001). The three other displays exhibited lower but generally similar performance characteristics. The findings suggest that 5 and 3 megapixel monochrome LCDs provide comparable but subtly superior contrast detectability than other tested displays, with the former performing slightly better in the detection of subtle and fine details.

Samei, Ehsan; Ranger, Nicole T.; Delong, David M. [Duke Advanced Imaging Laboratories, Departments of Radiology, Biomedical Engineering, and Physics, Duke University, Durham, North Carolina 27710 (United States); Duke Advanced Imaging Laboratories, Department of Radiology, Duke University, Durham, North Carolina 27710 (United States); Department of Biostatistics and Bioinformatics, Duke University, Durham, North Carolina 27710 (United States)

2008-04-15

337

Sub-Rayleigh-diffraction-bound quantum imaging  

E-print Network

The spatial resolution of an imaging apparatus is limited by the Rayleigh diffraction bound, a consequence of the imager’s finite spatial extent. We show some N-photon strategies that permit resolution of details that are ...

Giovannetti, Vittorio

338

Automating Shallow Seismic Imaging  

SciTech Connect

This seven-year, shallow-seismic reflection research project had the aim of improving geophysical imaging of possible contaminant flow paths. Thousands of chemically contaminated sites exist in the United States, including at least 3,700 at Department of Energy (DOE) facilities. Imaging technologies such as shallow seismic reflection (SSR) and ground-penetrating radar (GPR) sometimes are capable of identifying geologic conditions that might indicate preferential contaminant-flow paths. Historically, SSR has been used very little at depths shallower than 30 m, and even more rarely at depths of 10 m or less. Conversely, GPR is rarely useful at depths greater than 10 m, especially in areas where clay or other electrically conductive materials are present near the surface. Efforts to image the cone of depression around a pumping well using seismic methods were only partially successful (for complete references of all research results, see the full Final Technical Report, DOE/ER/14826-F), but peripheral results included development of SSR methods for depths shallower than one meter, a depth range that had not been achieved before. Imaging at such shallow depths, however, requires geophone intervals of the order of 10 cm or less, which makes such surveys very expensive in terms of human time and effort. We also showed that SSR and GPR could be used in a complementary fashion to image the same volume of earth at very shallow depths. The primary research focus of the second three-year period of funding was to develop and demonstrate an automated method of conducting two-dimensional (2D) shallow-seismic surveys with the goal of saving time, effort, and money. Tests involving the second generation of the hydraulic geophone-planting device dubbed the ''Autojuggie'' showed that large numbers of geophones can be placed quickly and automatically and can acquire high-quality data, although not under rough topographic conditions. In some easy-access environments, this device could make SSR surveying considerably more efficient and less expensive, particularly when geophone intervals of 25 cm or less are required. The most recent research analyzed the difference in seismic response of the geophones with variable geophone spike length and geophones attached to various steel media. Experiments investigated the azimuthal dependence of the quality of data relative to the orientation of the rigidly attached geophones. Other experiments designed to test the hypothesis that the data are being amplified in much the same way that an organ pipe amplifies sound have so far proved inconclusive. Taken together, the positive results show that SSR imaging within a few meters of the earth's surface is possible if the geology is suitable, that SSR imaging can complement GPR imaging, and that SSR imaging could be made significantly more cost effective, at least in areas where the topography and the geology are favorable. Increased knowledge of the Earth's shallow subsurface through non-intrusive techniques is of potential benefit to management of DOE facilities. Among the most significant problems facing hydrologists today is the delineation of preferential permeability paths in sufficient detail to make a quantitative analysis possible. Aquifer systems dominated by fracture flow have a reputation of being particularly difficult to characterize and model. At chemically contaminated sites, including U.S. Department of Energy (DOE) facilities and others at Department of Defense (DOD) installations worldwide, establishing the spatial extent of the contamination, along with the fate of the contaminants and their transport-flow directions, is essential to the development of effective cleanup strategies. Detailed characterization of the shallow subsurface is important not only in environmental, groundwater, and geotechnical engineering applications, but also in neotectonics, mining geology, and the analysis of petroleum reservoir analogs. Near-surface seismology is in the vanguard of non-intrusive approaches to increase knowledge of the shallow subsurface; our

Steeples, Don W.

2004-12-09

339

Microbial Cell Imaging  

SciTech Connect

Atomic force microscopy (AFM) is finding increasing application in a variety of fields including microbiology. Until the emergence of AFM, techniques for ivnestigating processes in single microbes were limited. From a biologist's perspective, the fact that AFM can be used to generate high-resolution images in buffers or media is its most appealing feature as live-cell imaging can be pursued. Imaging living cells by AFM allows dynamic biological events to be studied, at the nanoscale, in real time. Few areas of biological research have as much to gain as microbiology from the application of AFM. Whereas the scale of microbes places them near the limit of resolution for light microscopy. AFM is well suited for the study of structures on the order of a micron or less. Although electron microscopy techniques have been the standard for high-resolution imaging of microbes, AFM is quickly gaining favor for several reasons. First, fixatives that impair biological activity are not required. Second, AFM is capable of detecting forces in the pN range, and precise control of the force applied to the cantilever can be maintained. This combination facilitates the evaluation of physical characteristics of microbes. Third, rather than yielding the composite, statistical average of cell populations, as is the case with many biochemical assays, the behavior of single cells can be monitored. Despite the potential of AFM in microbiology, there are several limitations that must be considered. For example, the time required to record an image allows for the study of gross events such as cell division or membrane degradation from an antibiotic but precludes the evaluation of biological reactions and events that happen in just fractions of a second. Additionally, the AFM is a topographical tool and is restricted to imaging surfaces. Therefore, it cannot be used to look inside cells as with opticla and transmission electron microscopes. other practical considerations are the limitation on the maximum scan size (roughly 100 x 100 {mu}m) and the restricted movement of the cantilever in the Z (or height) direction. In most commercial AFMs, the Z range is restricted to roughly 10 {mu}m such that the height of cells to be imaged must be seriously considered. Nevertheless, AFM can provide structural-functional information at nanometer resolution and do so in physiologically relevant environments. Further, instrumentation for scanning probe microscopy continues to advance. Systems for high-speed imaging are becoming available, and techniques for looking inside the cells are being demonstrated. The ability to combine AFM with other imaging modalities is likely to have an even greater impact on microbiological studies. AFM studies of intact microbial cells started to appear in the literature in the 1990s. For example, AFM studies of Saccharomyces cerevisiae examined buddings cars after cell division and detailed changes related to cell growth processes. Also, the first AFM studies of bacterial biofilms appeared. In the late 1990s, AFM studies of intact fungal spores described clear changes in spore surfaces upon germination, and studies of individual bacterial cells were also described. These early bacterial imaging studies examined changes in bacterial morphology due to antimicrobial peptides exposure and bacterial adhesion properties. The majority of these early studies were carried out on dried samples and took advantage of the resolving power of AFM. The lack of cell mounting procedures presented an impediment for cell imaging studies. Subsequently, several approaches to mounting microbial cells have been developed, and these techniques are described later. Also highlighted are general considerations for microbial imaging and a description of some of the various applications of AFM to microbiology.

Doktycz, Mitchel John [ORNL; Sullivan, Claretta [Eastern Virginia Medical School; Mortensen, Ninell P [ORNL; Allison, David P [ORNL

2011-01-01

340

Image fusion with guided filtering.  

PubMed

A fast and effective image fusion method is proposed for creating a highly informative fused image through merging multiple images. The proposed method is based on a two-scale decomposition of an image into a base layer containing large scale variations in intensity, and a detail layer capturing small scale details. A novel guided filtering-based weighted average technique is proposed to make full use of spatial consistency for fusion of the base and detail layers. Experimental results demonstrate that the proposed method can obtain state-of-the-art performance for fusion of multispectral, multifocus, multimodal, and multiexposure images. PMID:23372084

Li, Shutao; Kang, Xudong; Hu, Jianwen

2013-07-01

341

Operationalizing Place: Discovering, Reasoning about, and Exploring Place Knowledge from Descriptions  

ERIC Educational Resources Information Center

Places and place types, such as "small town", play a fundamental role in how people organize knowledge about the world. Although places are commonly referenced in human communication, often they are not canonically defined and many of the properties people associate with them have proved difficult to operationalize. In information…

Adams, Benjamin Thomas

2012-01-01

342

Place as Historically Contingent Process: Structuration and the Time-Geography of Becoming Places  

Microsoft Academic Search

This paper presents the theoretical foundation for a different type of place-centered or regional geography. The framework rests upon an integration of time-geography and the emerging theory of structuration. It also builds upon a conceptualization of place as a constantly becoming human product as well as a set of features visible upon the landscape. Place is seen as a process

Allan Pred

1984-01-01

343

First Place -Clothing that Makes Me Feel Special Second Place Traditional Chinese Clothing ELISTUDENTVOICES  

E-print Network

1 Highlights First Place - Clothing that Makes Me Feel Special Second Place ­ Traditional Chinese be the biggest misfortune for everyone. someday. Traditional Chinese Clothing Ping Hu Second Place RW3 Clothing they meet friends outside or stay at home. Traditional Chinese clothing is for celebrating the holiday

Florida, University of

344

A Tie for Third Place: Teens Need Physical Spaces as well as Virtual Places  

ERIC Educational Resources Information Center

"Third places" or public and informal gathering places have declined over the years. Third places, which are "neutral ground" where people gather to discuss, interact, and enjoy the company of those they know, are important for the health of communities. It's a known fact that teens have a strong need to socialize, and their third-space options…

Heeger, Paula Brehm

2006-01-01

345

Foundations of Place: A Multidisciplinary Framework for Place-Conscious Education  

ERIC Educational Resources Information Center

This article provides educators at all levels with a theoretical rationale for place-conscious education; it also discusses pedagogical pathways, and institutional challenges, to place-consciousness. Drawing on insights from phenomenology, critical geography, bioregionalism, ecofeminism, and other place-conscious traditions, the author gathers…

Gruenewald, David A.

2003-01-01

346

Place and Special Places: Innovations in Conservation Practice in Northern Ireland  

Microsoft Academic Search

The ‘sense of place’ that relates human beings to their environment is under threat from the rising tide of ‘placelessness’ which can result from potentially positive forces such as urban regeneration as well as negative ones such as incremental degradation. The concept of ‘sense of place’, and the need to protect and enhance ‘special places’, has underpinned UK conservation legislation

Neil Galway; Malachy Mceldowney

2006-01-01

347

Public places through the private eye  

E-print Network

The radical change in the pattern of everyday communication has corresponded with a rapid transformation of the character of public urban places and the way they are used. The urban network is no longer the primary space ...

Gáspár, Zsuzsanna, 1967-

1993-01-01

348

Knowledge to Go Places Equine Reproduction Laboratory  

E-print Network

Knowledge to Go Places Equine Reproduction Laboratory College of Veterinary Medicine and Biomedical residency program in Equine Theriogenology (Reproduction) beginning July 1, 2015. A description of the program is attached. The residency incorporates the following: 1. Clinical reproduction in mares

349

Promotion-in-place: a logical approach.  

PubMed

The promotion-in-place system, says the author, can be a valuable tool for your healthcare institution. It can create a climate for individual achievement without the traditional roadblocks to success. PMID:10121325

Futrell, D E

1992-01-01

350

Library of Congress: Places in History  

NSDL National Science Digital Library

What do Missouri and Virginia have in common? They are both two of the places profiled on the Library of Congress' "Places in History" site. This remarkable site brings together maps and other primary documents to profile interesting places across the broad span of American history. Currently, there are six entries, including First Battle of Bull Run, Rich Mountain and Vicinity, and Gulf Coast. This last feature is a great place to begin, as it includes several key maps and charts that document the Gulf Coast in Florida around the beginning of the Civil War. Along with these items, there is a listing of related resources at the Library. Visitors shouldn't miss the Extra Session of Congress area as it provides some great historical background on the extra session of Congress called by President Abraham Lincoln for July 4, 1861 that would discuss the Civil War.

351

Chemical Agents: Facts about Sheltering in Place  

MedlinePLUS

... Public Health Matters What's New A - Z Index Chemical Agents: Facts About Sheltering in Place Language: English ... â??sheltering in placeâ? means Some kinds of chemical accidents or attacks may make going outdoors dangerous. ...

352

45 CFR 1703.301 - Meeting place.  

Code of Federal Regulations, 2011 CFR

...1703.301 Public Welfare Regulations Relating to Public Welfare (Continued) NATIONAL COMMISSION ON LIBRARIES AND INFORMATION SCIENCE GOVERNMENT IN THE SUNSHINE ACT Conduct of Meetings § 1703.301 Meeting place. Meetings...

2011-10-01

353

45 CFR 1703.301 - Meeting place.  

Code of Federal Regulations, 2010 CFR

...1703.301 Public Welfare Regulations Relating to Public Welfare (Continued) NATIONAL COMMISSION ON LIBRARIES AND INFORMATION SCIENCE GOVERNMENT IN THE SUNSHINE ACT Conduct of Meetings § 1703.301 Meeting place....

2010-10-01

354

Place and Technology in the Home  

Microsoft Academic Search

The home is a complex environment, designed for general use but shaped by individual needs and desires. It is a place often\\u000a shared by several people with different demands and requirements. It is a place embedded with technologies utilised at various\\u000a times by people in diverse ways. Until recently most home technologies have been primarily functional; aimed at easing domestic

Lynne Baillie; David Benyon

2008-01-01

355

The Dialectic of Recognition: Places and Friction  

Microsoft Academic Search

Friction, resistance, residue are concepts that stand not only for individual subjects but also for collective ones (societies,\\u000a communities, organisations of any type) and also for places, that cannot let themselves be crossed without an imprint or trace\\u000a being left. In effect, the “non-places” shrewdly singled out by Marc Augé (1993), are the nodes and networks of a world without

Giovanni Maciocco; Silvano Tagliagambe

356

Space Place Live: Episode with Linda Herrell  

NSDL National Science Digital Library

In this episode of Space Place Live, we meet Linda Herrell, a space mission architect, and learn that not all architects design buildings. Viewers find out how a love of French and Spanish led her to a love of computers and space technology —and what artsy hobby she picked to use her special design skills. Space Place Live introduces kids to the human, down-to-earth side of real scientists and engineers working in the space program.

357

Towards a detailed soot model for internal combustion engines  

SciTech Connect

In this work, we present a detailed model for the formation of soot in internal combustion engines describing not only bulk quantities such as soot mass, number density, volume fraction, and surface area but also the morphology and chemical composition of soot aggregates. The new model is based on the Stochastic Reactor Model (SRM) engine code, which uses detailed chemistry and takes into account convective heat transfer and turbulent mixing, and the soot formation is accounted for by SWEEP, a population balance solver based on a Monte Carlo method. In order to couple the gas-phase to the particulate phase, a detailed chemical kinetic mechanism describing the combustion of Primary Reference Fuels (PRFs) is extended to include small Polycyclic Aromatic Hydrocarbons (PAHs) such as pyrene, which function as soot precursor species for particle inception in the soot model. Apart from providing averaged quantities as functions of crank angle like soot mass, volume fraction, aggregate diameter, and the number of primary particles per aggregate for example, the integrated model also gives detailed information such as aggregate and primary particle size distribution functions. In addition, specifics about aggregate structure and composition, including C/H ratio and PAH ring count distributions, and images similar to those produced with Transmission Electron Microscopes (TEMs), can be obtained. The new model is applied to simulate an n-heptane fuelled Homogeneous Charge Compression Ignition (HCCI) engine which is operated at an equivalence ratio of 1.93. In-cylinder pressure and heat release predictions show satisfactory agreement with measurements. Furthermore, simulated aggregate size distributions as well as their time evolution are found to qualitatively agree with those obtained experimentally through snatch sampling. It is also observed both in the experiment as well as in the simulation that aggregates in the trapped residual gases play a vital role in the soot formation process. (author)

Mosbach, Sebastian; Celnik, Matthew S.; Raj, Abhijeet; Kraft, Markus [Department of Chemical Engineering and Biotechnology, University of Cambridge, Pembroke Street, Cambridge CB2 3RA (United Kingdom); Zhang, Hongzhi R. [Department of Chemical Engineering, University of Utah, 1495 East 100 South, Kennecott Research Building, Salt Lake City, UT 84112 (United States); Kubo, Shuichi [Frontier Research Center, Toyota Central R and D Labs., Inc., Nagakute, Aichi 480-1192 (Japan); Kim, Kyoung-Oh [Higashifuji Technical Center, Toyota Motor Corporation, Mishuku 1200, Susono, Shizuoka 480-1193 (Japan)

2009-06-15

358

DETAILED STUDIES OF ELECTRON COOLING FRICTION FORCE.  

SciTech Connect

High-energy electron cooling for RHIC presents many unique features and challenges. An accurate estimate of the cooling times requires detailed simulation of the electron cooling process. The first step towards such calculations is to have an accurate description of the cooling force. Numerical simulations are being used to explore various features of the friction force which appear due to several effects, including the anisotropy of the electron distribution in velocity space and the effect of a strong solenoidal magnetic field. These aspects are being studied in detail using the VORFAL code, which explicitly resolves close binary collisions. Results are compared with available asymptotic and empirical formulas and also, using the BETACOOL code, with direct numerical integration of less approximate expressions over the specified electron distribution function.

FEDOTOV, A.V.; BRUHWILER, D.L.; ABELL, D.T.; SIDORIN, A.O.

2005-09-18

359

A detailed DSMC surface chemistry model  

NASA Astrophysics Data System (ADS)

This work is aimed at development of detailed molecular surface chemistry models for DSMC method, their implementation into the SMILE++ software system, verification and validation. An approach to construction of DSMC suface chemistry models based on macroscopic reaction rate data was proposed. The approach was applied to macroscopic data for the air mixture of Deutschmann et al. The resulting DSMC surface chemistry model was implemented into SMILE++ software system and verified for thermal equilibrium conditions.

Molchanova Shumakova, A. N.; Kashkovsky, A. V.; Bondar, Ye. A.

2014-12-01

360

A Detailed Chemical Kinetic Model for TNT  

Microsoft Academic Search

A detailed chemical kinetic mechanism for 2,4,6-tri-nitrotoluene (TNT) has been developed to explore problems of explosive performance and soot formation during the destruction of munitions. The TNT mechanism treats only gas-phase reactions. Reactions for the decomposition of TNT and for the consumption of intermediate products formed from TNT are assembled based on information from the literature and on current understanding

W J Pitz; C K Westbrook

2005-01-01

361

New details on wind power climatology. [USA  

Microsoft Academic Search

The national isodyn map of average available wind power was used to help select fifteen stations, representative of interesting wind power climatic regimes, for detailed analyses of ten-year records of hourly wind speed observations. These long time series have been corrected for observer bias, homogenized to constant anemometer exposures, and extrapolated to select heights 10m, 20m, and 50m above flat

Reed

1977-01-01

362

SECTION 1 -APPLICANT DETAILS SECTION 2 -HOME BASED WORK ARRANGEMENT DETAILS  

E-print Network

Name Employee No. Position School/section University Contact Phone Mobile Email Home Office AddressSECTION 1 - APPLICANT DETAILS SECTION 2 - HOME BASED WORK ARRANGEMENT DETAILS SECTION 4 of work to be performed at home-based work site (Attachment A) Asset/equipment list included (Attachment B

Tobar, Michael

363

Support for seamless linkage between less-detailed and more-detailed representations for comic design  

Microsoft Academic Search

Through a study of comic design practice, we observed that comic designers created three components -- character-config, plot, and storyboard -- and used a trial-and-error approach with iterative progression from less detailed to more detailed representations during the early stages of design. However, existing comic design tools do not support these tasks very well. In the light of these observations,

Junko Ichino; Tomohiro Makita; Shun'ichi Tano; Tomonori Hashiyama

2009-01-01

364

Structural concepts and details for seismic design  

SciTech Connect

This manual discusses building and building component behavior during earthquakes, and provides suggested details for seismic resistance which have shown by experience to provide adequate performance during earthquakes. Special design and construction practices are also described which, although they might be common in some high-seismic regions, may not be common in low and moderate seismic-hazard regions of the United States. Special attention is given to describing the level of detailing appropriate for each seismic region. The UBC seismic criteria for all seismic zones is carefully examined, and many examples of connection details are given. The general scope of discussion is limited to materials and construction types common to Department of Energy (DOE) sites. Although the manual is primarily written for professional engineers engaged in performing seismic-resistant design for DOE facilities, the first two chapters, plus the introductory sections of succeeding chapters, contain descriptions which are also directed toward project engineers who authorize, review, or supervise the design and construction of DOE facilities. 88 refs., 188 figs.

Not Available

1991-09-01

365

Memory for Details with Self-Referencing  

PubMed Central

Self-referencing benefits item memory, but little is known about the ways in which referencing the self affects memory for details. Experiment 1 assessed whether the effects of self-referencing operate only at the item, or general, level or also enhance memory for specific visual details of objects. Participants incidentally encoded objects by making judgments in reference to the self, a close other (one’s mother), or a familiar other (Bill Clinton). Results indicate that referencing the self or a close other enhances both specific and general memory. Experiments 2 and 3 assessed verbal memory for source in a task that relied on distinguishing between different mental operations (internal sources). Results indicate that self-referencing disproportionately enhances source memory, relative to conditions referencing other people, semantic, or perceptual information. We conclude that self-referencing not only enhances specific memory for both visual and verbal information, but can disproportionately improve memory for specific internal source details as well. PMID:22092106

Serbun, Sarah J.; Shih, Joanne Y.; Gutchess, Angela H.

2011-01-01

366

VLBA Movies Reveal New Details of Cosmic Jets  

NASA Astrophysics Data System (ADS)

Astronomers have known for decades that supermassive black holes at the cores of galaxies can shoot out jets of subatomic particles at tremendous speeds. However, details about the physics of such jets, including how they are generated, how the high-speed flows are shaped into jets, and how fast the particles are moving, among many others, have remained elusive. An international team of researchers now is making an unprecedented long-term study of the motions of these giant jets, using the super-sharp imaging capabilities of the National Science Foundation's Very Long Baseline Array (VLBA). "We're making images of 200 galactic jets at regular intervals, tracking their motions and studying their magnetic-field properties. This is making major contributions to our understanding of such jets," said Matthew Lister, of Purdue University. MOJAVE Poster Click image for high-resolution file (11.9 MB) The research team has produced time-lapse movies of 100 of the jets, allowing measurement of the speed and direction of motion. "The results of these VLBA observations are going into a rich and still-growing set of data that is available to the entire astronomical research community as a tool for understanding the many unresolved questions we have about these jets," Lister said. The jet study is called MOJAVE -- Monitoring Of Jets in Active galactic nuclei with VLBA Experiments -- and began in 2002. It is a successor to an earlier VLBA study that regularly made images of nearly 200 jets from 1994 to 2002. The jets are powered by the gravitational energy of black holes containing hundreds of millions times more mass than the Sun. Black holes are concentrations of mass so dense that not even light can escape them. As these monsters draw material toward them, the material falls into a circular disk orbiting the black hole. The jets are propelled outward along the poles of the disk. The MOJAVE movies have given astronomers some surprises and also have spurred follow-on studies of individual objects. "Before the VLBA was built, we were hindered in our studies of extragalactic jets by the lack of a facility that could do high-quality, regularly-spaced images showing very great detail. The VLBA's capabilities have made it a premier facility for studying these objects out to very large distances, and thus getting a large sample," Lister said. The MOJAVE observations are showing new details about the structures of magnetic fields in the jets. This is important, because magnetic fields are thought to play vital roles in the acceleration of the particles and in shaping the jets. The time-lapse movies have revealed a variety of interesting behavior in the jets. For example, the powerful radio galaxy called 3C279 emitted a bright feature that moved along a straight path for 15 years, then suddenly brightened, showed a change in its magnetic field, and sped off in a new direction. Other jets shoot successive bright features that move outward in curved paths. Some features in jets are seen to break apart. "These detailed movies of complex motions are real-world data that allow researchers to refine their computer simulations of the jets, leading to a far better understanding of the physics involved in such impressive cosmic particle accelerators," Lister said. The MOJAVE data will prove valuable for comparison with the gamma-ray information to be collected by NASA's upcoming GLAST satellite. "Using the MOJAVE data along with data from other ground-based and orbiting observatories at different wavelengths is bringing the studies of galactic jets into a new era," Lister concluded. The National Radio Astronomy Observatory is a facility of the National Science Foundation, operated under cooperative agreement by Associated Universities, Inc.

2008-01-01

367

Observe many representations of a single place  

NSDL National Science Digital Library

Created for high school students, this interactive Earth science visualization presents eight different images of Mount Shasta, a volcano in California. Among the eight views are a satellite image, a geologic map, and a plot of lava flows in the area. When students click on each image, they will see either an enlargement of it or, in the case of the 3-D fly-around image, a short movie. Students can also click on a button to open a U.S. map that shows where Mount Shasta is located. Copyright 2005 Eisenhower National Clearinghouse

TERC. Center for Earth and Space Science Education

2003-01-01

368

Magnetic resonance imaging  

SciTech Connect

The author succeeds in making the physical phenomena of MR imaging quite comprehensible. The chapters on imaging sequences and parameters and the effects of pathologic conditions on MR images are written in a way that helps the beginner. MR artifacts are discussed in a special chapter. The atlas, which makes up 60% of the book; includes a detailed imaging guide with protocols concentrating mainly on the head, neck and brain. MR imaging of the chest is discussed as well as abdomen, pelvis and hips, and the spine, breast, and knee. The book ends with a list of MR equipment manufacturers, specifications of nine major commercial MR imagers, and a glossary of MR terminology.

Elster, A.D.

1986-01-01

369

Chord, Tie Bar & Crossbracing Joint Detail in Plan; Crossbracing ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

Chord, Tie Bar & Crossbracing Joint Detail in Plan; Crossbracing Center Joint Detail in Plan; Chord Joining Detail in Plan & Elevation; Chord, Panel Post, Tie Bar, & Diagonal Brace Joint Detail; Crossbracing Center Joint Detail in Section; Chord, Panel Post, Tie Bar & Horizontal Brace Joint Detail - Narrows Bridge, Spanning Sugar Creek at Old County Road 280 East, Marshall, Parke County, IN

370

Non-invasive imaging through opaque scattering layers.  

PubMed

Non-invasive optical imaging techniques, such as optical coherence tomography, are essential diagnostic tools in many disciplines, from the life sciences to nanotechnology. However, present methods are not able to image through opaque layers that scatter all the incident light. Even a very thin layer of a scattering material can appear opaque and hide any objects behind it. Although great progress has been made recently with methods such as ghost imaging and wavefront shaping, present procedures are still invasive because they require either a detector or a nonlinear material to be placed behind the scattering layer. Here we report an optical method that allows non-invasive imaging of a fluorescent object that is completely hidden behind an opaque scattering layer. We illuminate the object with laser light that has passed through the scattering layer. We scan the angle of incidence of the laser beam and detect the total fluorescence of the object from the front. From the detected signal, we obtain the image of the hidden object using an iterative algorithm. As a proof of concept, we retrieve a detailed image of a fluorescent object, comparable in size (50?micrometres) to a typical human cell, hidden 6?millimetres behind an opaque optical diffuser, and an image of a complex biological sample enclosed between two opaque screens. This approach to non-invasive imaging through strongly scattering media can be generalized to other contrast mechanisms and geometries. PMID:23135468

Bertolotti, Jacopo; van Putten, Elbert G; Blum, Christian; Lagendijk, Ad; Vos, Willem L; Mosk, Allard P

2012-11-01

371

An analysis of the optimal size of image sensors in free space optic systems  

NASA Astrophysics Data System (ADS)

There are several advantages offered by free space optic systems compared with conventional radio frequency systems. As a consequence of shorter wavelengths, the high directivity of the transmitted beam makes acquisition and pointing difficult, thus an imaging system is set up for acquisition and pointing. Optical wave front distortions induced by atmospheric turbulence result in a spreading of the beam leads to image jitter take place in the focal plane, where the image sensor is. The behavior of the image jitter can be described in a statistical manner. Consequently, the size, which is a very important parameter to an image sensor, can be determined by the statistical quantity of image jitter, which customarily is the root mean square (RMS) image displacement. The quantity of the RMS image displacement is as a function of several measurable parameters. In this paper, variations of the estimated RMS image displacement were calculate and discussed in detail. The calculation showed good agreement with the experimental results conducted with a propagation path length of 96 km. The optimal sizes of image sensors that are used for some specific circumstances were analyzed and proposed based on the RMS image displacement.

Li, Lixing; Huang, Yongmei; An, Tao

2014-09-01

372

Cure-in-place process for seals  

DOEpatents

A cure-in-place process which allows a rubber seal element to be deformed to its service configuration before it is cross-linked and, hence, is a plastic and does not build up internal stress as a result of the deformation. This provides maximum residual strength to resist the differential pressure. Furthermore, the process allows use of high modulus formulations of the rubber seal element which would otherwise crack if cured and then deformed to its service configuration, resulting in a seal which has better gap bridging capability. Basically, the process involves positioning an uncured seal element in place, deforming it to its service configuration, heating the seal element, curing it in place, and then fully seating the seal.

Hirasuna, Alan R. (Corona Del Mar, CA)

1981-01-01

373

Details of extensive movements by Minnesota wolves  

USGS Publications Warehouse

We used VHF, GPS, and satellite radiocollars to study details of long distance movements by four Minnesota wolves (Canis lupus). Number of locations during our tracking ranged from 14 to 274. Farthest distances reached ranged from 183-494 km, and minimum distances traveled (sums of line segments) ranged from 490-4251 km. Numbers of times wolves crossed state, provincial or interstate highways ranged from 1 to 215. All four of the wolves returned to or near their natal territories after up to 179 d and at least two left again.

Merrill, S.B.; Mech, L.D.

2000-01-01

374

Implementation details of the coupled QMR algorithm  

NASA Technical Reports Server (NTRS)

The original quasi-minimal residual method (QMR) relies on the three-term look-ahead Lanczos process, to generate basis vectors for the underlying Krylov subspaces. However, empirical observations indicate that, in finite precision arithmetic, three-term vector recurrences are less robust than mathematically equivalent coupled two-term recurrences. Therefore, we recently proposed a new implementation of the QMR method based on a coupled two-term look-ahead Lanczos procedure. In this paper, we describe implementation details of this coupled QMR algorithm, and we present results of numerical experiments.

Freund, Roland W.; Nachtigal, Noel M.

1992-01-01

375

Instrumentation for detailed bridge-scour measurements  

USGS Publications Warehouse

A portable instrumentation system is being developed to obtain channel bathymetry during floods for detailed bridge-scour measurements. Portable scour measuring systems have four components: sounding instrument, horizontal positioning instrument, deployment mechanisms, and data storage device. The sounding instrument will be a digital fathometer. Horizontal position will be measured using a range-azimuth based hydrographic survey system. The deployment mechanism designed for this system is a remote-controlled boat using a small waterplane area, twin-hull design. An on-board computer and radio will monitor the vessel instrumentation, record measured data, and telemeter data to shore.

Landers, Mark N.; Mueller, David S.; Trent, Roy E.

1993-01-01

376

A detailed phylogeny for the Methanomicrobiales  

NASA Technical Reports Server (NTRS)

The small subunit rRNA sequence of twenty archaea, members of the Methanomicrobiales, permits a detailed phylogenetic tree to be inferred for the group. The tree confirms earlier studies, based on far fewer sequences, in showing the group to be divided into two major clusters, temporarily designated the "methanosarcina" group and the "methanogenium" group. The tree also defines phylogenetic relationships within these two groups, which in some cases do not agree with the phylogenetic relationships implied by current taxonomic names--a problem most acute for the genus Methanogenium and its relatives. The present phylogenetic characterization provides the basis for a consistent taxonomic restructuring of this major methanogenic taxon.

Rouviere, P.; Mandelco, L.; Winker, S.; Woese, C. R.

1992-01-01

377

Population of the 100 Largest Cities and Other Urban Places in the United States: 1790 to 1990  

NSDL National Science Digital Library

This paper presents decennial census population totals for the 100 largest cities and other urban places in the United States based on the 21 decennial censuses taken from 1790 to 1990. This is the first time that the populations of America's largest urban areas at each census have been published in a single report. The report begins with useful background on three central topics: Urban and Urban Place, City Populations and Annexations, and Cities and Their Suburbs. The data are offered in 26 detailed statistical tables and two text tables. Explanations of detailed tables, sources and limitations of the data, notes for individual places, and references are also provided.

Gibson, Campbell.

1998-01-01

378

39. CLOSE UP DETAIL OF THE FEEDER AND STAMP CONNECTION. ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

39. CLOSE UP DETAIL OF THE FEEDER AND STAMP CONNECTION. THE STAMP AN MORTAR BOX ARE ON THE LEFT AND THE FEEDER WITH ITS FEEDER DISK IS ON THE RIGHT. NOTE THE COLLAR ON THE CENTER STAMP STEM (UPPER LEFT CORNER OF THE IMAGE) THAT ACTIVATES THE LEVER IN THE CENTER OF THE PHOTO. THE COLLAR IS POSITIONED SUCH THAT WHEN THE LEVEL OF THE MATERIAL REACHES A LOW POINT IN THE MORTAR BOX IT PUSHES DOWN ON THE LEVER WHICH IN TURN ACTIVATES THE AUTOMATIC FEEDER DRIVE MECHANISM WHICH THEM DELIVERS ORE INTO THE BACKSIDE OF THE MORTAR BOX. - Standard Gold Mill, East of Bodie Creek, Northeast of Bodie, Bodie, Mono County, CA

379

Fourier plane imaging microscopy  

SciTech Connect

We show how the image of an unresolved photonic crystal can be reconstructed using a single Fourier plane (FP) image obtained with a second camera that was added to a traditional compound microscope. We discuss how Fourier plane imaging microscopy is an application of a remarkable property of the obtained FP images: they contain more information about the photonic crystals than the images recorded by the camera commonly placed at the real plane of the microscope. We argue that the experimental results support the hypothesis that surface waves, contributing to enhanced resolution abilities, were optically excited in the studied photonic crystals.

Dominguez, Daniel, E-mail: daniel.dominguez@ttu.edu; Peralta, Luis Grave de [Department of Physics, Texas Tech University, Lubbock, Texas 79409 (United States); Nano Tech Center, Texas Tech University, Lubbock, Texas 79409 (United States); Alharbi, Nouf; Alhusain, Mdhaoui [Department of Physics, Texas Tech University, Lubbock, Texas 79409 (United States); Bernussi, Ayrton A. [Nano Tech Center, Texas Tech University, Lubbock, Texas 79409 (United States); Department of Electrical and Computer Engineering, Texas Tech University, Lubbock, Texas 79409 (United States)

2014-09-14

380

Space Place Live! With Linda Herrell  

NSDL National Science Digital Library

This is an episode of the Space Place Live talk show. Learners will watch NASA space mission architect Linda Herrell as she talks about her job in designing and testing new technology for the New Millennia Program, as well as engineering the spacecraft and rockets that would be necessary for space missions. Cartoon characters present their own brief talk show from the Space Place Clubhouse. The show presents space program scientists and engineers as role models for kids and encourages them to pursue their dreams. Guests present a short science or technology concept, and also talk about their job, their hobbies, and how they became interested in a career in science or engineering.

2012-12-06

381

Aging in place: merging desire with reality.  

PubMed

Barriers to aging in place include physical mobility and transportation limitations, isolation related loneliness and depression, diminishing health status, housing quality, finances, and caregiving resources. The scope of the aging demographic shift, economic consequences and loss of quality of life urge adoption of such successful approaches as the life course model. Desirable aging in place provides person-centered quality of living that is independence-effective and affordable. Systematic community-centered and person-centered approaches are crucial to accomplishing the central actions of the life course model. Not only are the actions necessary, they are interactive, interdependent, and strategic in supporting one another. PMID:24846462

Benefield, Lazelle E; Holtzclaw, Barbara J

2014-06-01

382

Diversity between and within: Approaches to Teaching about Distant Place in the Secondary School Curriculum  

ERIC Educational Resources Information Center

This study outlines some challenges of teaching about distant place and demonstrates how different strategies can influence school students' framings of diversity. The analysis is based on an interpretive case study of 13-14?year-old students learning about Japan in a UK school. Their changing representations of Japan were tracked in detail…

Taylor, Liz

2014-01-01

383

How Are Community College Students Assessed and Placed in Developmental Math? Grounding Our Understanding in Reality  

ERIC Educational Resources Information Center

The study's main objective was to provide a detailed description of math Assessment and Placement (A&P) policies in the Los Angeles Community College District (LACCD). The study was focused on math because a larger proportion of students place into remedial math than remedial reading or English (Bailey, Jeong, & Cho, 2010; Parsad,…

Melguizo, Tatiana; Kosiewicz, Holly; Prather, George; Bos, Johannes

2014-01-01

384

Consistent Multi-View Texturing of Detailed 3d Surface Models  

NASA Astrophysics Data System (ADS)

Texture mapping techniques are used to achieve a high degree of realism for computer generated large-scale and detailed 3D surface models by extracting the texture information from photographic images and applying it to the object surfaces. Due to the fact that a single image cannot capture all parts of the scene, a number of images should be taken. However, texturing the object surfaces from several images can lead to lighting variations between the neighboring texture fragments. In this paper we describe the creation of a textured 3D scene from overlapping aerial images using a Markov Random Field energy minimization framework. We aim to maximize the quality of the generated texture mosaic, preserving the resolution from the original images, and at the same time to minimize the seam visibilities between adjacent fragments. As input data we use a triangulated mesh of the city center of Munich and multiple camera views of the scene from different directions.

Davydova, K.; Kuschk, G.; Hoegner, L.; Reinartz, P.; Stilla, U.

2015-03-01

385

Animal Science Image Gallery  

NSDL National Science Digital Library

The National Agricultural Library, along with the USDA and the American Society of Animal Science are collaborators on this website of animal science images. The images, animations, and videos, which also have accompanying text, are intended for classroom and educational outreach. Additionally, the site also encourages the public to submit their own images relevant to animal science, and it also fully explains the process of selection, the criteria the image must meet to be suitable for classroom and educational outreach, and the copyright and use information for each submission. On the left side of the page are the categories of animals and topics included on the website. Some of the links include "Dairy Cattle", "Companion Animals", "Horses", "Poultry", "Genetics", "Reproduction", and "Nutrition". Although some of the categories have fewer images than others, such as Companion Animals, others such as "Nutrition" and "Horses" have over 100 images. For categories that do have images, the visitor can choose to view subcategories, or just view all the images in the category. Once you've chosen an image to view, you will initially see a thumbnail and a description of the image. If you click on "Image Details" at the bottom of each description, you will be privy to details such as the date created, image rights, how many times downloaded, and how many times viewed. Conveniently, you can download the image in different file and dimensional sizes to suit your needs.

2009-06-11

386

Detailed Chemical Kinetic Modeling of Hydrazine Decomposition  

NASA Technical Reports Server (NTRS)

The purpose of this research project is to develop and validate a detailed chemical kinetic mechanism for gas-phase hydrazine decomposition. Hydrazine is used extensively in aerospace propulsion, and although liquid hydrazine is not considered detonable, many fuel handling systems create multiphase mixtures of fuels and fuel vapors during their operation. Therefore, a thorough knowledge of the decomposition chemistry of hydrazine under a variety of conditions can be of value in assessing potential operational hazards in hydrazine fuel systems. To gain such knowledge, a reasonable starting point is the development and validation of a detailed chemical kinetic mechanism for gas-phase hydrazine decomposition. A reasonably complete mechanism was published in 1996, however, many of the elementary steps included had outdated rate expressions and a thorough investigation of the behavior of the mechanism under a variety of conditions was not presented. The current work has included substantial revision of the previously published mechanism, along with a more extensive examination of the decomposition behavior of hydrazine. An attempt to validate the mechanism against the limited experimental data available has been made and was moderately successful. Further computational and experimental research into the chemistry of this fuel needs to be completed.

Meagher, Nancy E.; Bates, Kami R.

2000-01-01

387

Advanced solar concentrator: Preliminary and detailed design  

NASA Technical Reports Server (NTRS)

A single reflection point focusing two-axis tracking paraboloidal dish with a reflector aperture diameter of approximately 11 m has a reflective surface made up of 64 independent, optical quality gores. Each gore is a composite of a thin backsilvered mirror glass face sheet continuously bonded to a contoured substrate of lightweight, rigid cellular glass. The use of largely self-supporting gores allows a significant reduction in the weight of the steel support structure as compared to alternate design concepts. Primary emphasis in the preliminary design package for the low-cost, low-weight, mass producible concentrator was placed on the design of the higher cost subsystems. The outer gore element was sufficiently designed to allow fabrication of prototype gores.

Bell, D. M.; Maraschin, R. A.; Matsushita, M. T.; Erskine, D.; Carlton, R.; Jakovcevic, A.; Yasuda, A. K.

1981-01-01

388

Support for seamless linkage between less detailed and more detailed representations for comic design  

Microsoft Academic Search

Through a study of comic design practice, we observed that comic designers created three components-character-config, plot, and storyboard-and used a trial-and-error approach with iterative progression from less detailed to more detailed representations during the early stages of design. However, existing comic design tools do not support these tasks very well. In the light of these observations, we created a system

J. Ichino; T. Makita; S. Tano; T. Hashiyama

2010-01-01

389

Study of the detail content of Apollo orbital photography  

NASA Technical Reports Server (NTRS)

The results achieved during a study of the Detail Content of Apollo Orbital Photography are reported. The effect of residual motion smear or image reproduction processes upon the detail content of lunar surface imagery obtained from the orbiting command module are assessed. Data and conclusions obtained from the Apollo 8, 12, 14 and 15 missions are included. For the Apollo 8, 12 and 14 missions, the bracket-mounted Hasselblad camera had no mechanism internal to the camera for motion compensation. If the motion of the command module were left totally uncompensated, these photographs would exhibit a ground smear varying from 12 to 27 meters depending upon the focal length of the lens and the exposure time. During the photographic sequences motion compensation was attempted by firing the attitude control system of the spacecraft at a rate to compensate for the motion relative to the lunar surface. The residual smear occurring in selected frames of imagery was assessed using edge analyses methods to obtain and achieved modulation transfer function (MTF) which was compared to a baseline MTF.

Kinzly, R. E.

1972-01-01

390

Algorithmically generated rodent hepatic vascular trees in arbitrary detail.  

PubMed

Physiologically realistic geometric models of the vasculature in the liver are indispensable for modelling hepatic blood flow, the main connection between the liver and the organism. Current in vivo imaging techniques do not provide sufficiently detailed vascular trees for many simulation applications, so it is necessary to use algorithmic refinement methods. The method of Constrained Constructive Optimization (CCO) (Schreiner et al., 2006) is well suited for this purpose. Its results after calibration have been previously compared to experimentally acquired human vascular trees (Schwen and Preusser, 2012). The goal of this paper is to extend this calibration to the case of rodents (mice and rats), the most commonly used animal models in liver research. Based on in vivo and ex vivo micro-CT scans of rodent livers and their vasculature, we performed an analysis of various geometric features of the vascular trees. Starting from pruned versions of the original vascular trees, we applied the CCO procedure and compared these algorithmic results to the original vascular trees using a suitable similarity measure. The calibration of the postprocessing improved the algorithmic results compared to those obtained using standard CCO. In terms of angular features, the average similarity increased from 0.27 to 0.61, improving the total similarity from 0.28 to 0.40. Finally, we applied the calibrated algorithm to refine measured vascular trees to the (higher) level of detail desired for specific applications. Having successfully adapted the CCO algorithm to the rodent model organism, the resulting individual-specific refined hepatic vascular trees can now be used for advanced modeling involving, e.g., detailed blood flow simulations. PMID:25451523

Schwen, Lars Ole; Wei, Weiwei; Gremse, Felix; Ehling, Josef; Wang, Lei; Dahmen, Uta; Preusser, Tobias

2015-01-21

391

Passport Scanning: Quick guide First enter the passport number on CMS (Personal Details form) if not already present.  

E-print Network

Passport Scanning: Quick guide First enter the passport number on CMS (Personal Details form) if not already present. Before scanning the passport, make sure that the `Category' option (1) is set to `Passport'. Scan the image

Sussex, University of

392

Is There a Place for Character Education?  

ERIC Educational Resources Information Center

Recent trends in school curricula place a heavy focus on the improvement of basic skills test scores. As a result, the role of character education has been diminished. This article provides a rationale for the incorporation of a character education program within the school curricula, a working definition of character education, and the role of…

Creasy, Kim L.

2008-01-01

393

Central place theory and sport tourism impacts  

Microsoft Academic Search

Although sport tourism initiatives can boost a destination’s export base, not all communities have an equal likelihood of successfully hosting such an event. The purpose of this study is to use central place theory as a basis for understanding location features that influence the economic outcomes associated with hosting a sport event. The economic impacts generated by a tournament co-hosted

Margaret J. Daniels

2007-01-01

394

Defending Place in the Google Earth Age  

Microsoft Academic Search

Virtual globes, like Google Earth, are increasingly being used by experts and lay publics in the process of ‘defending place’ against rapidly shifting energy geographies. Drawing upon the fields of visual studies, landscape architecture and geography, this article examines the use of geospatial tools by conservation campaigns challenging new developments. With a focus on wind energy, the article describes the

Roopali Phadke

2010-01-01

395

A place theory of sound localization  

Microsoft Academic Search

The author presents a place theory of sound localization based upon the time difference of stimulation of the 2 ears. The hypothesis depends upon the known slow rate of conduction in small nerve fibers and the phenomenon of spatial summation. It assumes that some secondary fibers of the auditory tract divide, sending branches homolaterally and contralaterally. There is a further

Lloyd A. Jeffress

1948-01-01

396

Place Based Ringtones Eric Paulos Tom Jenkins  

E-print Network

offices, schools, and homes, technology is expanding at an astonishing rate across our everyday public with new sensors (at bottom in green), actuators (at top in red), and physical places empowering each of us It Yourself) approach to making by using a standard everyday consumer technology as the basic building block

Paulos, Eric

397

library.syr.edu Spaces and Places  

E-print Network

library.syr.edu #12;Spaces and Places Bird Library, the largest library on campus, welcomes over sciences, library administrative offices, the Special Collections Research Center, and the library café, Pages. Other library facilities include the Carnegie Library, the Geology Library in Heroy

McConnell, Terry

398

Timber Products Equipment Services MarketPlace  

E-print Network

permitting process. A local consultant has also been contracted and rough drawings have been sketchedTimber Products Equipment Services The MarketPlace By Mimi Barzen W hile Ainsworth no longer: manufacturers, utility companies, higher education and research, and testing services that support renewable

399

Customers of place: exploring interregional migrant collectivities  

Microsoft Academic Search

Purpose – The aim of this research is to explore how and why different migrant groups see different values in places they move to. Understanding these values and also the conditions in which these values are shaped will help in targeting marketing effort. Design\\/methodology\\/approach – The hierarchical and K-means cluster analyses were instrumental in identifying different migrant clusters. Planned contrasts

Djavlonbek Kadirov; Arti Triveni

2010-01-01

400

A pattern language for sacred secular places  

E-print Network

that could contribute towards this process. The energies, also referred to as Â?patterns,Â? are the energies unique to a place that make it special and sacred (not just in the religious context but also in the secular context). This thesis is an attempt...

Joseph, Melanie Rachel

2006-08-16

401

Place cell activation predicts subsequent memory  

PubMed Central

A major quandary in memory is how hippocampal place cells, widely recognized as elements of a spatial map, contribute to episodic memory, our capacity to remember unique experiences that depends on hippocampal function. Here we recorded from hippocampal neurons as rats performed a T-maze alternation task in which they were required to remember a preceding experience over a delay in order to make a subsequent spatial choice. As has been reported previously in other variations of this task, we observed differential firing that predicted correct subsequent choices, even as the animal traversed identical locations prior to the choice. Here we also observed that most place cells also fired differently on correct as compared to error trials. Among these cells, a large majority fired strongly before the delay or during the retrieval phase but were less active or failed to activate when the animal subsequently made an error. These findings join the place cell phenomenon with episodic memory performance dependent on the hippocampus, revealing that memory accuracy can be predicted by the activation of single place cells in the hippocampus. PMID:23295394

Robitsek, R. Jonathan; White, John; Eichenbaum, Howard

2013-01-01

402

Places to Go: Pedagogy in Action  

ERIC Educational Resources Information Center

In this edition of Places to Go, Stephen Downes explores Pedagogy in Action, a Web site that seeks to provide pedagogical resources and support to educators in the field of scientific education. Managed by Carleton College, a small Midwestern liberal arts college, Pedagogy in Action, argues Downes, exemplifies what the Internet can do: increase…

Downes, Stephen

2008-01-01

403

The Bay in Place of a Glacier.  

ERIC Educational Resources Information Center

The cultural resource specialist at Glacier Bay National Park (Alaska) explains the collaborative efforts of park staff and the Hoonah Tlingit to overcome language and cultural barriers in documenting park place names and clan oral history and traditions. The new park-community relationship, which follows decades of conflict, includes training…

Howell, Wayne

1997-01-01

404

Geography's Place in Higher Education in Singapore  

ERIC Educational Resources Information Center

Unlike the other papers in this symposium, which deal with countries where there are large numbers of universities, and comparison can be made over time and across space of geography's place in higher education, this paper focuses on a country that was for a long time described as a "one-university town": Singapore. What interesting story can…

Kong, Lily

2007-01-01

405

Presence and the Aura of Meaningful Places  

Microsoft Academic Search

We propose the term aura to enrich the current language for designing and analyzing media experiences, especially when using augmented reality, mixed reality and ubiquitous computing technology. Aura describes the cultural and personal significance that a place (or object) holds for an individual. An MR application can exploit aura to make the user's experience more compelling or educationally rewarding. Aura

Blair MacIntyre; Jay David Bolter; Maribeth Gandy

2004-01-01

406

Indian Place Names in South Dakota.  

ERIC Educational Resources Information Center

A cursory examination of place names on a map of South Dakota does not reflect the important role that Indians have played in the state and their relation to the land framed by its borders. Only three towns with populations over 1,000 bear names that clearly come from Indian languages: Sioux Falls, Sisseton, and Yankton. The hostile relationship…

Gasque, Thomas J.

407

Venturing into Scary Places: The Minority Experience  

ERIC Educational Resources Information Center

Students who have lived as part of a majority for their entire life may find it frightening to be asked to visit a place where they will be in the minority. In this article, the author uses this assignment to demonstrate to his students how some people feel everyday. The Minority Experience assignment challenges students to actively participate in…

Bennett, Craig

2007-01-01

408

Geological Society of America 3300 Penrose Place  

E-print Network

Geological Society of America 3300 Penrose Place P.O. Box 9140 Boulder, CO 80301 (303) 447 and restrictions: Copyright © 2006, The Geological Society of America, Inc. (GSA). All rights reserved. Copyright by scientists worldwide, regardless of their race, citizenship, gender, religion, or political viewpoint

Heimsath, Arjun M.

409

Geological Society of America 3300 Penrose Place  

E-print Network

Geological Society of America 3300 Penrose Place P.O. Box 9140 Boulder, CO 80301 (303) 447 to the following conditions and restrictions: Copyright © 2008, The Geological Society of America, Inc. (GSA). All of diverse opinions and positions by scientists worldwide, regardless of their race, citizenship, gender

Lin, Andrew Tien-Shun

410

Geological Society of America 3300 Penrose Place  

E-print Network

Geological Society of America 3300 Penrose Place P.O. Box 9140 Boulder, CO 80301 (303) 357 and restrictions: Copyright © 2009, The Geological Society of America, Inc. (GSA). All rights reserved. Copyright by scientists worldwide, regardless of their race, citizenship, gender, religion, or political viewpoint

411

Geological Society of America 3300 Penrose Place  

E-print Network

Geological Society of America 3300 Penrose Place P.O. Box 9140 Boulder, CO 80301 (303) 447 and restrictions: Copyright © 2005, The Geological Society of America, Inc. (GSA). All rights reserved. Copyright by scientists worldwide, regardless of their race, citizenship, gender, religion, or political viewpoint

Kletetschka, Gunther

412

Geological Society of America 3300 Penrose Place  

E-print Network

Geological Society of America 3300 Penrose Place P.O. Box 9140 Boulder, CO 80301 (303) 447: Copyright © 2009, The Geological Society of America, Inc. (GSA). All rights reserved. Copyright not claimed worldwide, regardless of their race, citizenship, gender, religion, or political viewpoint. Opinions

413

Geological Society of America 3300 Penrose Place  

E-print Network

Geological Society of America 3300 Penrose Place P.O. Box 9140 Boulder, CO 80301 (303) 447 and restrictions: Copyright © 2004, The Geological Society of America, Inc. (GSA). All rights reserved. Copyright by scientists worldwide, regardless of their race, citizenship, gender, religion, or political viewpoint

Kaus, Boris

414

Geological Society of America 3300 Penrose Place  

E-print Network

Geological Society of America 3300 Penrose Place P.O. Box 9140 Boulder, CO 80301 (303) 447 and restrictions: Copyright © 2007, The Geological Society of America, Inc. (GSA). All rights reserved. Copyright by scientists worldwide, regardless of their race, citizenship, gender, religion, or political viewpoint

415

The Right Place, The Right Time  

ERIC Educational Resources Information Center

Superintendents are in the right place at the right time to take advantage of a golden opportunity to reverse a trend that threatens the nation's schools and communities. They are now uniquely positioned to stop the retreat of good-hearted, well-intentioned citizens from public life. In this article, the authors present perpetual traps that…

O'Callaghan, William G.; Irish, Charles M.

2006-01-01

416

Engaging Places: Teacher Research. Final Report  

ERIC Educational Resources Information Center

The report was commissioned by the Department for Culture Media and Sport (DCMS) to provide quantitative and qualitative information on the perspectives of teachers, headteachers and governors, from the three pilot regions (London, the South East and Yorkshire and the Humber), towards using local buildings, places and spaces to support learning…

National Foundation for Educational Research, 2007

2007-01-01

417

What Kind of Place Is Secondary School?  

ERIC Educational Resources Information Center

Secondary school introduces students to a public space that differs from the private spaces commonly found in elementary schools. One of the markers signaling a transition from private to public space is the use of discourse. Secondary schools are places where social practices reject the democratic and caring activities found in the elementary…

Hayes, Monie; Vivian, Craig

2008-01-01

418

Places to Go: YouTube  

ERIC Educational Resources Information Center

Founded in 2005 by three former PayPal employees, YouTube has revolutionized the Internet, marking a change from the static Internet to the dynamic Internet. In this edition of Places to Go, Stephen Downes discusses how the rise of a ubiquitous media format--Flash video--has made YouTube's success possible and argues that Flash video has important…

Downes, Stephen

2008-01-01

419

Making Sense of Place: Sarah's Story  

ERIC Educational Resources Information Center

Written from the vantage point of both a mother and teacher educator, the author recounts the journey taken by Sarah, her 4-year old daughter, as she is introduced to and explores map making as a means of representing and making sense of familiar and unfamiliar places. Offering Sarah's experience as context, the author offers both a practical and…

James, Jennifer H.

2008-01-01

420

Are you currently married? Place of Birth  

E-print Network

or descendent of a member of the American Society for Quality Control, Iowa Chapter? Yes No Work ExperienceAre you currently married? No Yes Place of Birth City County State Country Race/Ethnicity Citizenship Visa Type Visa Date of Birth In-Session Information for Spring 2011 Interim Information Permanent

Lin, Zhiqun

421

Place cells, grid cells, and memory.  

PubMed

The hippocampal system is critical for storage and retrieval of declarative memories, including memories for locations and events that take place at those locations. Spatial memories place high demands on capacity. Memories must be distinct to be recalled without interference and encoding must be fast. Recent studies have indicated that hippocampal networks allow for fast storage of large quantities of uncorrelated spatial information. The aim of the this article is to review and discuss some of this work, taking as a starting point the discovery of multiple functionally specialized cell types of the hippocampal-entorhinal circuit, such as place, grid, and border cells. We will show that grid cells provide the hippocampus with a metric, as well as a putative mechanism for decorrelation of representations, that the formation of environment-specific place maps depends on mechanisms for long-term plasticity in the hippocampus, and that long-term spatiotemporal memory storage may depend on offline consolidation processes related to sharp-wave ripple activity in the hippocampus. The multitude of representations generated through interactions between a variety of functionally specialized cell types in the entorhinal-hippocampal circuit may be at the heart of the mechanism for declarative memory formation. PMID:25646382

Moser, May-Britt; Rowland, David C; Moser, Edvard I

2015-02-01

422

Place-based Mitigation of Climate Change  

E-print Network

Place-based Mitigation of Climate Change Robert Socolow Princeton University socolow should provide at least one wedge. #12;"The Wedge Model is the iPod of climate change: You fill/yr, 30 miles per gallon b) Fly 10,000 miles/yr c) Heat home Natural gas, average house, average climate d

423

Who Places into Developmental Education and Why  

ERIC Educational Resources Information Center

Having garnered national attention, high failure rates in developmental education present a significant barrier to state and national policymakers' goals of increasing the percentage of adults who earn a college credential. However, a majority of the research fails to consider why students place into developmental education. This piece…

Pretlow, Joshua, III; Wathington, Heather D.

2013-01-01

424

Making School a Place of Peace.  

ERIC Educational Resources Information Center

This book was written for educators at all levels and individuals who are concerned about making schools safe, orderly places. It offers guidelines to promote and increase peace in the schools. The introductory chapter, "Moving toward a Peaceable School," endorses the national commitment to violence-free, peaceful, and productive schools, and…

Bey, Theresa M.; Turner, Gwendolyn Y.

425

Place cells, grid cells, and memory.  

PubMed

The hippocampal system is critical for storage and retrieval of declarative memories, including memories for locations and events that take place at those locations. Spatial memories place high demands on capacity. Memories must be distinct to be recalled without interference and encoding must be fast. Recent studies have indicated that hippocampal networks allow for fast storage of large quantities of uncorrelated spatial information. The aim of the this article is to review and discuss some of this work, taking as a starting point the discovery of multiple functionally specialized cell types of the hippocampal–entorhinal circuit, such as place, grid, and border cells.We will show that grid cells provide the hippocampus with a metric, as well as a putative mechanism for decorrelation of representations, that the formation of environment-specific place maps depends on mechanisms for long-term plasticity in the hippocampus, and that long-term spatiotemporal memory storage may depend on offline consolidation processes related to sharp-wave ripple activity in the hippocampus. The multitude of representations generated through interactions between a variety of functionally specialized cell types in the entorhinal–hippocampal circuit may be at the heart of the mechanism for declarative memory formation. PMID:25713825

Moser, May-Britt; Rowland, David C; Moser, Edvard I

2015-01-01

426

The National Register of Historic Places.  

ERIC Educational Resources Information Center

This journal contains articles and materials to help teachers instruct students about U.S. historical and cultural heritage. Articles and materials are: "The National Register of Historic Places Today" (C. D. Shull); "The (Economic) Value of National Register Listing" (D. D. Rypkema); "The National Register and Heritage Areas" (B. Barrett);…

Greenberg, Ronald M., Ed

2002-01-01

427

Prey Processing in Central Place Foragers  

Microsoft Academic Search

The importance of prey processing as an integral part of foraging behaviour has long been acknowledged, but little theoretical consideration has been given to the optimization of the processing behaviour itself. Processing renders food down to ingestible, palatable portions, and also removes non-essential mass thus reducing transport costs. Here, several models of processing are developed for a central place forager.

SEAN A. RANDS; ALASDAIR I. HOUSTON; CATHERINE E. GASSON

2000-01-01

428

Video Games and the Pedagogy of Place  

ERIC Educational Resources Information Center

In this article the author explores the construction of place within virtual worlds and, in particular, in video games that appeal widely to children and youths. With the notable exception of "edutainment" titles, gaming and education have traditionally been viewed as separate pursuits. Yet, after school, millions of children and teens spend…

Hutchison, David

2007-01-01

429

Principal Component Analysis for Place Recognition  

E-print Network

Computer Science Department, Yale University New Haven, CT 06512 Abstract We present a hybrid neural resembles. Here, we propose a neural network solution which combines stages of unsuper­ vised learning network model to solve a place recognition problem. The front end is a self­organizing net equivalent

Dodds, Zachary

430

Embodied Reimagining of Pedagogical Places/Spaces  

ERIC Educational Resources Information Center

Students often find themselves disconnected from foundations courses such as Philosophy of Education, citing the abstract nature of some of the ideas studied and a perceived disconnect from practical issues. Moreover, the place/space of the university classroom itself can be seen to contribute to students' disengagement and stunting of their…

Sinha, Shilpi; Bryzzheva, Lyudmila

2012-01-01

431

Placing a Fyke Net in Wetland Vegetation  

USGS Multimedia Gallery

Glen Black of GLSC and Angela Wahlquist of Northland College places fyke net in wetland vegetation in Fish Creek Slough of Lake Superior near Ashland, Wisconsin, as part of a study of bioindicators of wetland degradation in the Great Lakes. This study is funded by the U.S. EPA Environmental Research...

432

Reframing Primary Curriculum through Concepts of Place  

ERIC Educational Resources Information Center

Australian curricula name "sustainability" as a key priority area with implications for preparing pre-service teachers. In the research that generated this paper, we asked: How can framing teaching through space and place inform pre-service teachers' pedagogical thinking and practice? In new third year Bachelor of Education…

Power, Kerith; Green, Monica

2014-01-01

433

MAGNIFICENT DETAILS IN A DUSTY SPIRAL GALAXY  

NASA Technical Reports Server (NTRS)

In 1995, the majestic spiral galaxy NGC 4414 was imaged by the Hubble Space Telescope as part of the HST Key Project on the Extragalactic Distance Scale. An international team of astronomers, led by Dr. Wendy Freedman of the Observatories of the Carnegie Institution of Washington, observed this galaxy on 13 different occasions over the course of two months. Images were obtained with Hubble's Wide Field Planetary Camera 2 (WFPC2) through three different color filters. Based on their discovery and careful brightness measurements of variable stars in NGC 4414, the Key Project astronomers were able to make an accurate determination of the distance to the galaxy. The resulting distance to NGC 4414, 19.1 megaparsecs or about 60 million light-years, along with similarly determined distances to other nearby galaxies, contributes to astronomers' overall knowledge of the rate of expansion of the universe. The Hubble constant (H0) is the ratio of how fast galaxies are moving away from us to their distance from us. This astronomical value is used to determine distances, sizes, and the intrinsic luminosities for many objects in our universe, and the age of the universe itself. Due to the large size of the galaxy compared to the WFPC2 detectors, only half of the galaxy observed was visible in the datasets collected by the Key Project astronomers in 1995. In 1999, the Hubble Heritage Team revisited NGC 4414 and completed its portrait by observing the other half with the same filters as were used in 1995. The end result is a stunning full-color look at the entire dusty spiral galaxy. The new Hubble picture shows that the central regions of this galaxy, as is typical of most spirals, contain primarily older, yellow and red stars. The outer spiral arms are considerably bluer due to ongoing formation of young, blue stars, the brightest of which can be seen individually at the high resolution provided by the Hubble camera. The arms are also very rich in clouds of interstellar dust, seen as dark patches and streaks silhouetted against the starlight. Image Credit: Hubble Heritage Team (AURA/STScI/NASA) NOTE TO EDITORS: Image files and photo caption are available on the

2002-01-01

434

Toward a detailed characterization of oil adsorbates as "solid liquids".  

PubMed

Solid lipid formulation systems are used to overcome oral bioavailability problems of poorly water-soluble drugs. One promising process is the conversion of a liquid lipid system in a free flowing powder by use of adsorbing excipients. The aim of this study was the detailed characterization of solid-liquid interactions in oil adsorbed to Fujicalin and Neusilin which were manufactured by means of dual asymmetric centrifugation or conventional mortar/pestle blending. The adsorption strength of the excipients was investigated by Benchtop-NMR and ESR spectroscopy revealing the highest adsorption power for the Neusilin products. The adsorbate production methods as well as the storage of the excipients impact their adsorption properties. Environmental scanning electron microscopy (ESEM) and confocal laser scanning microscopy (CLSM) show that dual asymmetric centrifugation leads to a smoothing of the particle surface, whereas the mortar/pestle blending results in an uneven surface and particle destruction. The oil distribution at the particles is inhomogeneous for both production methods. The micropolarity of the adsorbed oil was investigated by ESR spectroscopy and multispectral fluorescence imaging. The adsorbing process on Neusilin leads to an increased micropolarity of the oil component. The release of the oil component in aqueous media could be verified by Benchtop-NMR and multispectral fluorescence imaging. PMID:23275113

Kutza, Claudia; Metz, Hendrik; Kutza, Johannes; Syrowatka, Frank; Mäder, Karsten

2013-05-01

435

Picornavirus uncoating intermediate captured in atomic detail  

PubMed Central

It remains largely mysterious how the genomes of non-enveloped eukaryotic viruses are transferred across a membrane into the host cell. Picornaviruses are simple models for such viruses, and initiate this uncoating process through particle expansion, which reveals channels through which internal capsid proteins and the viral genome presumably exit the particle, although this has not been clearly seen until now. Here we present the atomic structure of an uncoating intermediate for the major human picornavirus pathogen CAV16, which reveals VP1 partly extruded from the capsid, poised to embed in the host membrane. Together with previous low-resolution results, we are able to propose a detailed hypothesis for the ordered egress of the internal proteins, using two distinct sets of channels through the capsid, and suggest a structural link to the condensed RNA within the particle, which may be involved in triggering RNA release. PMID:23728514

Ren, Jingshan; Wang, Xiangxi; Hu, Zhongyu; Gao, Qiang; Sun, Yao; Li, Xuemei; Porta, Claudine; Walter, Thomas S.; Gilbert, Robert J.; Zhao, Yuguang; Axford, Danny; Williams, Mark; McAuley, Katherine; Rowlands, David J.; Yin, Weidong; Wang, Junzhi; Stuart, David I.; Rao, Zihe; Fry, Elizabeth E.

2013-01-01

436

Detailed mechanism for oxidation of benzene  

NASA Technical Reports Server (NTRS)

A detailed mechanism for the oxidation of benzene is presented and used to compute experimentally obtained concentration profiles and ignition delay times over a wide range of equivalence ratio and temperature. The computed results agree qualitatively with all the experimental trends. Quantitative agreement is obtained with several of the composition profiles and for the temperature dependence of the ignition delay times. There are indications, however, that some important reactions are as yet undiscovered in this mechanism. Recent literature expressions have been used for the rate coefficients of most important reactions, except for some involving phenol. The discrepancy between the phenol pyrolysis rate coefficient used in this work and a recent literature expression remains to be explained.

Bittker, David A.

1990-01-01

437

Magnetic resonance imaging  

SciTech Connect

The authors present a review of magnetic resonance imaging. Many topics are explored from instrumentation, spectroscopy, blood flow and sodium imaging to detailed clinical applications such as the differential diagnosis of multiple sclerosis or adrenal adenoma. The emphasis throughout is on descriptions of normal multiplanar anatomy and pathology as displayed by MRI.

Stark, D.D.; Bradley, W.G. Jr.

1988-01-01

438

Implications of Sense of Place and Place-Based Education for Ecological Integrity and Cultural Sustainability in Diverse Places  

Microsoft Academic Search

\\u000a Emotional and intellectual estrangement – or even the outright eviction – of people from places personally and culturally\\u000a important to them is rampant in this time of anthropic sprawl, economic globalization, and cultural homogenization. Placelessness\\u000a (Relph 1976) unmoors individuals, often with detrimental effects to self-identity and well-being. Mass displacement, typically\\u000a to suit the economic or political purposes of others, removes

Steven Semken; Elizabeth Brandt

439

Fairtrade Urbanism? The Politics of Place Beyond Place in the Bristol Fairtrade City Campaign  

Microsoft Academic Search

Understandings of fairtrade, ethical trading and sustainability often assume a relationship involving disparate placeless consumers being stitched together with place-specific producers in developing world contexts. Using an ethnographic study of the policy-making and political processes of the Bristol Fairtrade City campaign, we suggest ways in which fairtrade consumption can become aligned with place. The campaign was a vehicle for enlisting

ALICE MALPASS; PAUL CLOKE; CLIVE BARNETT; NICK CLARKE

2007-01-01

440

"My Place": Exploring Children's Place-Related Identities through Reading and Writing  

ERIC Educational Resources Information Center

This paper considers how children perceive and represent their placed-related identities through reading and writing. It reports on the findings of an 18-month interdisciplinary project, based at Cambridge University Faculty of Education, which aimed to consider children's place-related identities through their engagement with, and creation…

Charlton, Emma; Cliff Hodges, Gabrielle; Pointon, Pam; Nikolajeva, Maria; Spring, Erin; Taylor, Liz; Wyse, Dominic

2014-01-01

441

EVIDENCE FOR PHONETIC PROCESSING OF CUES TO PLACE OF ARTICULATION: PERCEIVED MANNER AFFECTS PERCEIVED PLACE  

E-print Network

EVIDENCE FOR PHONETIC PROCESSING OF CUES TO PLACE OF ARTICULATION: PERCEIVED MANNER AFFECTS of place of articulation involves phonetic processing, and could not be purely auditory. It is clear of the system. and speech- specific phonetic or phonological mechanisms at the output end where segments

442

14 CFR 29.685 - Control system details.  

Code of Federal Regulations, 2010 CFR

... 2010-01-01 2010-01-01 false Control system details. 29.685 Section 29.685 ...CATEGORY ROTORCRAFT Design and Construction Control Systems § 29.685 Control system details. (a) Each detail of each...

2010-01-01

443

14 CFR 27.685 - Control system details.  

Code of Federal Regulations, 2010 CFR

... 2010-01-01 2010-01-01 false Control system details. 27.685 Section 27.685 ...CATEGORY ROTORCRAFT Design and Construction Control Systems § 27.685 Control system details. (a) Each detail of each...

2010-01-01

444

Image-Method Gain Measurement With Mismatch  

NASA Technical Reports Server (NTRS)

New formula accounts for multiple reflections. In image method antenna placed facing its image in reflecting plane. Power transmitted by antenna and portion of transmitted power received by antenna after reflection from plane measured at various distances R.

Lee, Richard Q.; Baddour, Maurice F.

1988-01-01

445

Apple Image Processing Educator  

NASA Technical Reports Server (NTRS)

A software system design is proposed and demonstrated with pilot-project software. The system permits the Apple II microcomputer to be used for personalized computer-assisted instruction in the digital image processing of LANDSAT images. The programs provide data input, menu selection, graphic and hard-copy displays, and both general and detailed instructions. The pilot-project results are considered to be successful indicators of the capabilities and limits of microcomputers for digital image processing education.

Gunther, F. J.

1981-01-01

446

Geometry Completion and Detail Generation by Texture Synthesis Minh X. Nguyen Xiaoru Yuan Baoquan Chen  

E-print Network

Geometry Completion and Detail Generation by Texture Synthesis Minh X. Nguyen Xiaoru Yuan Baoquan on existing geometry. The most novel feature of our pro- posed method is to transform the 3D geometry synthe then derive lo- cal geometry gradient images that encode intrinsic local geometry properties, which

Minnesota, University of

447

Being there: the library as place.  

PubMed

The value of the library as place is examined in this Janet Doe Lecture. The lecture, which is intended to focus on the history or philosophy of health sciences librarianship, presents an overview of the library as a place in society from ancient times to the present. The impact of information technology and changes in the methods of scholarly publication from print to digital are addressed as well as the role of the library as the repository of the written historical record of cultures. Functions and services of libraries are discussed in light of the physical library facility of the future. Finally, librarians are asked to remember the enduring values of librarianship in planning libraries of the future. PMID:14762459

Weise, Frieda

2004-01-01

448

Being there: the library as place*  

PubMed Central

The value of the library as place is examined in this Janet Doe Lecture. The lecture, which is intended to focus on the history or philosophy of health sciences librarianship, presents an overview of the library as a place in society from ancient times to the present. The impact of information technology and changes in the methods of scholarly publication from print to digital are addressed as well as the role of the library as the repository of the written historical record of cultures. Functions and services of libraries are discussed in light of the physical library facility of the future. Finally, librarians are asked to remember the enduring values of librarianship in planning libraries of the future. PMID:14762459

Weise, Frieda

2004-01-01

449

Burial at Srebrenica: linking place and trauma.  

PubMed

Five years after the massacre at Srebrenica in Bosnia-Herzegovina, survivors were faced with the decision: where did they want their loved ones buried? This report explores the reasons for their choice in qualitative interviews with 37 survivors of the massacre and 22 key informants performed over the summer 2000. Survivors wanted the loved ones buried at Potocari, a site just outside of Srebrenica, because it represented the site of ultimate horror, was connected to their sense of home, and underscored the various power relationships. The data points to the importance of place for health. Trauma, as it occurs in particular locations, breaks the sense of attachment to a particular place. Restoring the physical and social environment through burial and memorials mitigates the consequences of the trauma. The burial at Potocari provides a window into the mourning, politics, and recovery after mass violence. PMID:12560012

Pollack, Craig Evan

2003-02-01

450

Space Place Live! With Merav Opher  

NSDL National Science Digital Library

This is an episode of the Space Place Live talk show. Learners will watch NASA astrophysicist Merav Opher as she talks about her job studying the Sun, heliosphere, space weather, and solar wind. She also discusses NASA's Voyager missions and how they have reached the heliosheath and will soon leave our Solar System into the interstellar medium. Cartoon characters present their own brief talk show from the Space Place Clubhouse. The show presents space program scientists and engineers as role models for kids and encourages them to pursue their dreams. Guests present a short science or technology concept, and also talk about their job, their hobbies, and how they got interested in a career in science or engineering.

2013-02-14

451

Space Place Live! with Donya Douglas  

NSDL National Science Digital Library

This is an episode of the Space Place Live talk show. Learners will watch engineer, Donya Douglas, of NASA's Goddard Space Flight Center, talk about her job in designing ways to keep the three tiny Space Technology 5 spacecraft at the right operating temperature in space, without adding much to their mass or need for electrical power. Cartoon characters present their own 6-7 minute talk show live from the Space Place Clubhouse. The show presents space program scientists and engineers as role models for kids and encourages them to pursue their dreams. Guests present a short science or technology concept, and also talk about their job, their hobbies, and how they got interested in a career in science or engineering.

452

Space Place Live! with Donya Douglas  

NSDL National Science Digital Library

In this episode of the Space Place Web site talk show, thermal engineer Donya Douglas of NASA's Goddard Space Flight Center talks about her job in designing ways to keep the three tiny Space Technology 5 spacecraft at the right operating temperature in space, without adding much to their mass or need for electrical power. Cartoon characters present their own 6-7 minute talk show live from the Space Place Clubhouse. The show presents space program scientists and engineers as role models for kids and encourages them to pursue their dreams. In each episode, the guest presents a short science or technology concept, and also talks about their job, their hobbies, and how they got interested in a career in science or engineering.

2005-09-26

453

Space Place LIve! with Andre Dress  

NSDL National Science Digital Library

This episode of the Space Place Live animated talk show features an interview with Andre Dress, the Deputy Project Manager for the Geostationary Operational Environmental Satellite (GOES) program. During the course of the interview, viewers are introduced to the GOES program and its role in studying the sun, solar flares, weather and our atmosphere. The term geostationary is also explained. Cartoon characters present their own brief talk show from the Space Place Clubhouse. The show presents space program scientists and engineers as role models for kids and encourages them to pursue their dreams. Guests present a short science or technology concept, and also talk about their job, their hobbies, and how they became interested in a career in science or engineering.

454

Forwardly-placed firearm fire control assembly  

DOEpatents

A firearm fire control assembly for disposition in a forwardly placed support-hand operative relationship within a firearm having a combination of a firing pin and a firearm hammer adapted to engage and fire a cartridge, a sear assembly to alternately engage and disengage the combination of the firearm hammer and firing pin, and a trigger assembly including a movable trigger mechanism that is operable to engage the sear assembly to cause the firearm hammer firing pin combination to fire the firearm, a fire control assembly including a fire control depression member and a fire control rod operably connected to the depression member, and being positioned in a forward disposition disposed within a forestock of the firearm, and the depression member adapted to be operably engaged and depressed by the user's conventional forwardly placed support hand to maneuver the fire control rod to provide firing control of the firing of the firearm.

Frickey, Steven J. (Rigby, ID)

2001-12-22

455

Revisiting place and temporal theories of pitch  

PubMed Central

The nature of pitch and its neural coding have been studied for over a century. A popular debate has revolved around the question of whether pitch is coded via “place” cues in the cochlea, or via timing cues in the auditory nerve. In the most recent incarnation of this debate, the role of temporal fine structure has been emphasized in conveying important pitch and speech information, particularly because the lack of temporal fine structure coding in cochlear implants might explain some of the difficulties faced by cochlear implant users in perceiving music and pitch contours in speech. In addition, some studies have postulated that hearing-impaired listeners may have a specific deficit related to processing temporal fine structure. This article reviews some of the recent literature surrounding the debate, and argues that much of the recent evidence suggesting the importance of temporal fine structure processing can also be accounted for using spectral (place) or temporal-envelope cues. PMID:25364292

2014-01-01

456

Part A Personal / Contact Information Part B Passport / Visa Details  

E-print Network

Part A ­ Personal / Contact Information Part B ­ Passport / Visa Details Part C ­ Travel Plans Our. Passport Details Name as it appears on passport ______________________________________________ Passport

Hickman, Mark

457

Improved Cure-in-Place Silicone Adhesives  

NASA Technical Reports Server (NTRS)

Two improved cure-in-place silicone-elastomer-based adhesives have low thermal expansion and low thermal conductivity. Adhesives are flexible at low temperature and withstand high temperatures without disintegrating. New ablative compounds were initially developed for in-flight repair of insulating tile on Space Shuttle orbiter. Could find use in other applications requiring high-performance adhesives, such as sealants for solar collectors.

Blevins, C. E.; Sweet, J.; Gonzalez, R.

1982-01-01

458

Reach the Target -Decimals and Place Value  

NSDL National Science Digital Library

This activity which opens using the Sketchpad Explorer (cataloged separately) allows students to develop and apply their knowledge of place value as they make and refine a series of estimates to identify the locations of unlabeled tick marks on a number line. These locations are exact to units, tenths, and all the way up to hundred thousandths. Also included are activity notes (PDF) and student worksheets (PDF).

Daniel Scher

2012-10-09

459

The Young Men of Marram Place  

ERIC Educational Resources Information Center

Bucky is 29 years old. Jesse is 27 is years old. Paul is 23 years old. They have lived together at Marram Place, a four-bedroom house, for over a year and have become best friends. Each works 20 hours per week in the community for his own spending money. After work, the guys walk, swim, work on computers, help with the housework, deliver a…

Johnston, Diana Armatage

2010-01-01

460

Place, race and differential occupational opportunities  

Microsoft Academic Search

A large body of literature investigating the link between black percentage in the community and occupational differentiation,\\u000a has found disparities to be greater in places where blacks are in a higher proportion. The present paper discusses first,\\u000a theoretical perspectives and methodological techniques employed in past research; second, examines the issue in terms of the\\u000a relative odds of the races for

Moshe Semyonov; Danny R. Hoyt; Richard I. Scott

1984-01-01

461

The Israeli “Place” in East Jerusalem  

Microsoft Academic Search

How does new territorial control become inexorable fact?1 How does such fact, based on confiscated land, turn into “a national home”? How does this “home” embody the Israeli “place”\\u000a even as Palestinians contest possession of the genius loci? This essay examines the legitimizing professional discourse of\\u000a the Israeli settler society. It focuses on the architectural practices that empowered the first

Alona Nitzan-Shiftan

462

EXAM PLACES K Chemistry Dept. Building  

E-print Network

.30 Proctors will pick-up exam papers from G. ERTA, T. TNÃ?ER Surname Group Place Building Proctors Instructor AHBOZ- BAARAN (24) 01 U-1 G. ERTA BEGJANOV- DEMRDELEN (24) 01 U-2 G. ERTA DEMREL- YÃ?REKL (100) 01 U-3 G. ERTA ABALI-ELTA (40) 02 P-1 T. TNÃ?ER ERCAN-Ã?ZTÃ?RK (40) 02 P-2 T. TNÃ?ER Ã?ZYURT-TURGU (17) 02 P-3 T

Hasýrcý, Vasýf

463

Filter for biomedical imaging and image processing  

NASA Astrophysics Data System (ADS)

Image filtering techniques have numerous potential applications in biomedical imaging and image processing. The design of filters largely depends on the a priori, knowledge about the type of noise corrupting the image. This makes the standard filters application specific. Widely used filters such as average, Gaussian, and Wiener reduce noisy artifacts by smoothing. However, this operation normally results in smoothing of the edges as well. On the other hand, sharpening filters enhance the high-frequency details, making the image nonsmooth. An integrated general approach to design a finite impulse response filter based on Hebbian learning is proposed for optimal image filtering. This algorithm exploits the interpixel correlation by updating the filter coefficients using Hebbian learning. The algorithm is made iterative for achieving efficient learning from the neighborhood pixels. This algorithm performs optimal smoothing of the noisy image by preserving high-frequency as well as low-frequency features. Evaluation results show that the proposed finite impulse response filter is robust under various noise distributions such as Gaussian noise, salt-and-pepper noise, and speckle noise. Furthermore, the proposed approach does not require any a priori knowledge about the type of noise. The number of unknown parameters is few, and most of these parameters are adaptively obtained from the processed image. The proposed filter is successfully applied for image reconstruction in a positron emission tomography imaging modality. The images reconstructed by the proposed algorithm are found to be superior in quality compared with those reconstructed by existing PET image reconstruction methodologies.

Mondal, Partha P.; Rajan, K.; Ahmad, Imteyaz

2006-07-01

464

In-place filter testing summary  

SciTech Connect

The most common method of identifying particle penetration through a filter or adsorber system is through the performance of a periodic penetration test, i.e., in-place test or leak test using an aerosol or gas vapor to challenge the filter or adsorber system. The aerosol is usually formed by vaporization of a liquid, di-2(ethelhexyl sebacate) (DEHS), and allowed to condense to form liquid particles of a certain size and distribution. The gas vapor is formed by vaporization of Freon 11 liquid. The periodic penetration test, although conducted annually, can and has been demonstrated to show the beginning degradation of a filter or adsorber system. Other evidence of penetration can include detection of radiation downstream of the filter system or the existence of an unusually low pressure drop across the filter, i.e., torn filter, etc. However, these kinds of occurrences show up instantaneously and could release radioactive material to the atmosphere before the systems could be shut down. When a filter system fails the in--place test or is showing evidence of.filter or component degradation, corrective measures are put into place in order to return,the system back to its best operating condition. This report presents a summary of all filter tests.

Ortiz, J.P.; Garcia, E.D.; Ortega, J.M.

1988-03-01

465

Course Location Duration Admission Places for non-EU  

E-print Network

'Offerta Formativa A.A. 2012/2013 08/06/2012 #12;Course Location Duration (years) Admission Places for non-EUCourse Location Duration (years) Admission Places for non-EU students (total) Places for Chinese places reserved for spring entrance test) 5 0 Course Location Duration (years) Admission Places for non-EU

Schenato, Luca

466

Course Location Duration Admission Places for non-EU  

E-print Network

Course Location Duration (years) Admission Places for non-EU students (total) Places for Chinese (195 places) 5 2 Course Location Duration (years) Admission Places for non-EU students (total) Places Certificazione dell'Offerta Formativa A.A. 2012/2013 08/06/2012 #12;Course Location Duration (years) Admission

Schenato, Luca

467

Distributed cognitive maps reflecting real distances between places and views in the human brain.  

PubMed

KEEPING ORIENTED IN THE ENVIRONMENT IS A MULTIFACETED ABILITY THAT REQUIRES KNOWLEDGE OF AT LEAST THREE PIECES OF INFORMATION: one's own location ("place") and orientation ("heading") within the environment, and which location in the environment one is looking at ("view"). We used functional magnetic resonance imaging (fMRI) in humans to examine the neural signatures of these information. Participants were scanned while viewing snapshots which varied for place, view and heading within a virtual room. We observed adaptation effects, proportional to the physical distances between consecutive places and views, in scene-responsive (retrosplenial complex and parahippocampal gyrus), fronto-parietal and lateral occipital regions. Multivoxel pattern classification of signals in scene-responsive regions and in the hippocampus allowed supra-chance decoding of place, view and heading, and revealed the existence of map-like representations, where places and views closer in physical space entailed activity patterns more similar in neural representational space. The pattern of hippocampal activity reflected both view- and place-based distances, the pattern of parahippocampal activity preferentially discriminated between views, and the pattern of retrosplenial activity combined place and view information, while the fronto-parietal cortex only showed transient effects of changes in place, view, and heading. Our findings provide evidence for the presence of map-like spatial representations which reflect metric distances in terms of both one's own and landmark locations. PMID:25309392

Sulpizio, Valentina; Committeri, Giorgia; Galati, Gaspare

2014-01-01

468

Distributed cognitive maps reflecting real distances between places and views in the human brain  

PubMed Central

Keeping oriented in the environment is a multifaceted ability that requires knowledge of at least three pieces of information: one’s own location (“place”) and orientation (“heading”) within the environment, and which location in the environment one is looking at (“view”). We used functional magnetic resonance imaging (fMRI) in humans to examine the neural signatures of these information. Participants were scanned while viewing snapshots which varied for place, view and heading within a virtual room. We observed adaptation effects, proportional to the physical distances between consecutive places and views, in scene-responsive (retrosplenial complex and parahippocampal gyrus), fronto-parietal and lateral occipital regions. Multivoxel pattern classification of signals in scene-responsive regions and in the hippocampus allowed supra-chance decoding of place, view and heading, and revealed the existence of map-like representations, where places and views closer in physical space entailed activity patterns more similar in neural representational space. The pattern of hippocampal activity reflected both view- and place-based distances, the pattern of parahippocampal activity preferentially discriminated between views, and the pattern of retrosplenial activity combined place and view information, while the fronto-parietal cortex only showed transient effects of changes in place, view, and heading. Our findings provide evidence for the presence of map-like spatial representations which reflect metric distances in terms of both one’s own and landmark locations. PMID:25309392

Sulpizio, Valentina; Committeri, Giorgia; Galati, Gaspare

2014-01-01

469

Optoelectronic pH Meter: Further Details  

NASA Technical Reports Server (NTRS)

A collection of documents provides further detailed information about an optoelectronic instrument that measures the pH of an aqueous cell-culture medium to within 0.1 unit in the range from 6.5 to 7.5. The instrument at an earlier stage of development was reported in Optoelectronic Instrument Monitors pH in a Culture Medium (MSC-23107), NASA Tech Briefs, Vol. 28, No. 9 (September 2004), page 4a. To recapitulate: The instrument includes a quartz cuvette through which the medium flows as it is circulated through a bioreactor. The medium contains some phenol red, which is an organic pH-indicator dye. The cuvette sits between a light source and a photodetector. [The light source in the earlier version comprised red (625 nm) and green (558 nm) light-emitting diodes (LEDs); the light source in the present version comprises a single green- (560 nm)-or-red (623 nm) LED.] The red and green are repeatedly flashed in alternation. The responses of the photodiode to the green and red are processed electronically to obtain the ratio between the amounts of green and red light transmitted through the medium. The optical absorbance of the phenol red in the green light varies as a known function of pH. Hence, the pH of the medium can be calculated from the aforesaid ratio.

Jeevarajan, Antony S.; Anderson, Mejody M.; Macatangay, Ariel V.

2009-01-01

470

Murky details of the Miocene Atlantic Ocean  

NASA Astrophysics Data System (ADS)

We examine Atlantic Ocean circulation during the Miocene based on published modelling and data. It has long been recognised that the Atlantic Ocean played a key role in climate changes throughout the Quaternary and determining whether this was the case earlier in the Cenozoic may be important for understanding the details of Miocene climate evolution. Current geochemical, sedimentological and micropaleontologic evidence allows for multiple interpretations of deep water activity, which is further hampered by a lack of precise dating of ocean gateway closures. Previous ocean modelling studies have shown strong increases in deep water formation due to closure of the Panama gateway but have disagreed on the oceanographic importance of the Tethys gateway and bathymetry of the far North Atlantic. This combination of ambiguous data and conflicting modelling results leaves the current state of knowledge of the Miocene ocean lacking. We propose several avenues of research to improve our knowledge of the Miocene Atlantic Ocean, which will ultimately improve our understanding of its response to climate change and vice versa.

Herold, N. K.; Huber, M.; Shevenell, A.; Müller, D.

2013-12-01

471

Detailed abundances in EMP dwarfs from SDSS  

NASA Astrophysics Data System (ADS)

We report on the current status of an ongoing survey to select extremely metal poor (EMP) turn-off (TO) stars from Sloan Digital Sky Survey (SDSS) spectra, and determine their detailed chemical composition through high resolution follow-up. So far, 26 stars have been observed with UVESatVLT and X-SHOOTERatVLT, all but two showing an iron content below [Fe/H]=-3. Among them we detected the current record holder for the lowest total metallicity (SDSS J102915+172927, Z=10-5 Zsolar), four carbon-enhanced extremely metal poor objects (CEMP), as well as subsets with enhanced Ni and Mn. Lithium abundances or upper limits were derived, confirming the previously detected ``meltdown'' of the Spite plateau for metallicities below about [Fe/H]=-2.8. SDSS J102915+172927 in particular shows no detectable Li I 670.8 doublet, leading to an upper limit of A(Li)<1.1, hinting to an even deeper Li depletion in TO stars below [Fe/H]=-4. Spectroscopic follow-up is currently being prosecuted by the recently started ESO large program TOPoS, aiming to observe about 80 more EMP candidates.

Sbordone, Luca; Caffau, Elisabetta; Bonifacio, Piercarlo

2012-09-01

472

Some articulatory details of emotional speech  

NASA Astrophysics Data System (ADS)

Differences in speech articulation among four emotion types, neutral, anger, sadness, and happiness are investigated by analyzing tongue tip, jaw, and lip movement data collected from one male and one female speaker of American English. The data were collected using an electromagnetic articulography (EMA) system while subjects produce simulated emotional speech. Pitch, root-mean-square (rms) energy and the first three formants were estimated for vowel segments. For both speakers, angry speech exhibited the largest rms energy and largest articulatory activity in terms of displacement range and movement speed. Happy speech is characterized by largest pitch variability. It has higher rms energy than neutral speech but articulatory activity is rather comparable to, or less than, neutral speech. That is, happy speech is more prominent in voicing activity than in articulation. Sad speech exhibits longest sentence duration and lower rms energy. However, its articulatory activity is no less than neutral speech. Interestingly, for the male speaker, articulation for vowels in sad speech is consistently more peripheral (i.e., more forwarded displacements) when compared to other emotions. However, this does not hold for female subject. These and other results will be discussed in detail with associated acoustics and perceived emotional qualities. [Work supported by NIH.

Lee, Sungbok; Yildirim, Serdar; Bulut, Murtaza; Kazemzadeh, Abe; Narayanan, Shrikanth

2005-09-01

473

Environment: EPA details progress on pollution prevention  

SciTech Connect

Trumpeting the triumph of voluntary agreements over command and control regulation, EPA has issued a report on the pollution prevention accomplishments it says it helped industry achieve in 1994. Some of those moves were greeted with a jaundiced eye by industry when they were announced, however, and a new industry study finds that more environmental progress has been made by industry without the help of EPA. EPA details a long list of pollution prevention achievements, including design and demonstration of innovative pollution prevention techniques for the chemical and other industries, reducing waste at an agchem dealership, and creation of a new Office of Compliance to assist various industry sectors. Many of the initiatives focus on reducing use of such chemicals as pesticides, halogenated solvents, and chlorofluorocarbons. Industry was not so impressed with other actions, such as numerical goals in EPA`s hazardous waste minimization plan, dioxin standards in a major pulp and paper rule, and a {open_quotes}green chemistry challenge{close_quotes} unveiled as a partnership with the chemical industry. In its report on industry`s environmental progress, the National Association of Manufacturers says, {open_quotes}The remarkable environmental achievements of manufacturers stem from innovation and flexibility, not from top-down dictates from regulators.{close_quotes} It says manufacturers have reduced toxic emissions 43% in the past seven years as companies changed production processes to meet environmental goals and to improve productivity and quality.

NONE

1995-05-03

474

Detailed Chemical Kinetic Modeling of Cyclohexane Oxidation  

SciTech Connect

A detailed chemical kinetic mechanism has been developed and used to study the oxidation of cyclohexane at both low and high temperatures. Reaction rate constant rules are developed for the low temperature combustion of cyclohexane. These rules can be used for in chemical kinetic mechanisms for other cycloalkanes. Since cyclohexane produces only one type of cyclohexyl radical, much of the low temperature chemistry of cyclohexane is described in terms of one potential energy diagram showing the reaction of cyclohexyl radical + O{sub 2} through five, six and seven membered ring transition states. The direct elimination of cyclohexene and HO{sub 2} from RO{sub 2} is included in the treatment using a modified rate constant of Cavallotti et al. Published and unpublished data from the Lille rapid compression machine, as well as jet-stirred reactor data are used to validate the mechanism. The effect of heat loss is included in the simulations, an improvement on previous studies on cyclohexane. Calculations indicated that the production of 1,2-epoxycyclohexane observed in the experiments can not be simulated based on the current understanding of low temperature chemistry. Possible 'alternative' H-atom isomerizations leading to different products from the parent O{sub 2}QOOH radical were included in the low temperature chemical kinetic mechanism and were found to play a significant role.

Silke, E J; Pitz, W J; Westbrook, C K; Ribaucour, M

2006-11-10

475

Stellar Imager  

NASA Technical Reports Server (NTRS)

The Stellar Imager (SI) is one of NASA's "Vision Missions" - concepts for future, space-based, strategic missions that could enormously increase our capabilities for observing the Cosmos. SI is designed as a UV/Optical Interferometer which will enable 0.1 milli-arcsecond (mas) spectral imaging of stellar surfaces and, via asteroseismology, stellar interiors and of the Universe in general. The ultra-sharp images of the Stellar Imager will revolutionize our view of many dynamic astrophysical processes by transforming point sources into extended sources, and snapshots into evolving views. SI, with a characteristic angular resolution of 0.1 milli-arcseconds at 2000 Angstroms, represents an advance in image detail of several hundred times over that provided by the Hubble Space Telescope. The Stellar Imager will zoom in on what today-with few exceptions - we only know as point sources, revealing processes never before seen, thus providing a tool as fundamental to astrophysics as the microscope is to the study of life on Earth. SI's science focuses on the role of magnetism in the Universe, particularly on magnetic activity on the surfaces of stars like the Sun. It's prime goal is to enable long-term forecasting of solar activity and the space weather that it drives, in support of the Living With a Star program in the Exploration Era. SI will also revolutionize our understanding of the formation of planetary systems, of the habitability and climatology of distant planets, and of many magneto-hydrodynamically controlled processes in the Universe. Stellar Imager is included as a "Flagship and Landmark Discovery Mission" in the 2005 Sun Solar System Connection (SSSC) Roadmap and as a candidate for a "Pathways to Life Observatory" in the Exploration of the Universe Division (EUD) Roadmap (May, 2005) and as such is a candidate mission for the 2025-2030 timeframe. An artist's drawing of the current "baseline" concept for SI is presented.

Carpenter, Kenneth

2007-01-01

476

Weighted guided image filtering.  

PubMed

It is known that local filtering-based edge preserving smoothing techniques suffer from halo artifacts. In this paper, a weighted guided image filter (WGIF) is introduced by incorporating an edge-aware weighting into an existing guided image filter (GIF) to address the problem. The WGIF inherits advantages of both global and local smoothing filters in the sense that: 1) the complexity of the WGIF is O(N) for an image with N pixels, which is same as the GIF and 2) the WGIF can avoid halo artifacts like the existing global smoothing filters. The WGIF is applied for single image detail enhancement, single image haze removal, and fusion of differently exposed images. Experimental results show that the resultant algorithms produce images with better visual quality and at the same time halo artifacts can be reduced/avoided from appearing in the final images with negligible increment on running times. PMID:25415986

Li, Zhengguo; Zheng, Jinghong; Zhu, Zijian; Yao, Wei; Wu, Shiqian

2015-01-01

477

Beyond conventional migration: non-linear elastic subsalt imaging with transmissions and two-sided illumination  

NASA Astrophysics Data System (ADS)

Source-receiver interferometric imaging can be used to synthesize a subsurface acoustic or elastic image, consisting of a zero-time, zero-offset response (or Green's function) between a colocated pseudo-source and pseudo-receiver placed at each point in the subsurface image. However, if the imaging process does not properly account for multiple reflections, and enclosing boundaries of sources and receivers are not available, the image shows artefacts, poorly illuminated areas and distorted image amplitudes. Here we demonstrate with numerical examples that two-sided non-linear imaging provides the best elastic pure-mode (PP and SS) and converted-mode (PS) images, having higher resolution and more uniform illumination than those obtained from both one-sided linear imaging and from other intermediate steps of imaging (e.g. non-linear one-sided, linear two-sided). We also propose practical approaches to construct the additional fields required by two-sided non-linear imaging without the need for a detailed velocity model and receivers (and/or sources) in the subsurface. Moreover, when conversions are used for imaging, `true-amplitude' images (here true-amplitude means properly retrieving amplitudes that represent the zero-time, zero-offset elastic response) should theoretically vanish because neither P-to-S or S-to-P conversions arise at zero-time and zero-offset. Applying a correction procedure that accounts for the polarity reversal in PS (or SP) single-shot images helps with their structural interpretation but results in an unphysical estimate of the subsurface response and uninterpretable amplitudes. This suggests that there are advantages in exploiting pure-mode SS reflections/transmissions, in addition to converted waves only, because they require no polarity correction and the resulting image contains meaningful amplitudes that are proportional to the local shear-wave properties of the medium.

Ravasi, Matteo; Vasconcelos, Ivan; Curtis, Andrew

2014-08-01

478

Aging in Place in a Retirement Community: 90+ Year Olds  

PubMed Central

Aging in place, an image of growing old in one’s home and maintaining one’s daily routine, is desired by most older adults. To identify variables promoting such independent living in the oldest-old, we examined the association between living situation of a population-based cohort of 90+ year olds with health and lifestyle variables. Of 1485 participants, 53% still lived in their home at a retirement community designed to foster wellness. Those living at home tended to be healthier, with smaller proportions having chronic diseases or hospitalizations in the preceding year and a greater proportion having normal functional ability. Dementia was the chronic disease most significantly related to living situation. In addition to not having dementia, not using a wheelchair or bath aid, receiving meals on wheels, and being married were jointly related to living at home. With the help of family and friends and with a medical and social support system, many 90+ year olds can age in place. This is often because they have a caregiving spouse or paid caregiver. PMID:25288828

Paganini-Hill, Annlia

2014-01-01

479

Visual Place Recognition with Repetitive Structures Akihiko Torii Josef Sivic Tomas Pajdla Masatoshi Okutomi  

E-print Network

]; (iv) exploiting the 3D or graph structure of the database [11, 20, 29, 42, 43, 47]; or (v) indexing or more images in the geotagged database depicting the same place. The ability to visually recognize of Science and Engineering, Tokyo Institute of Technology WILLOW project, Laboratoire d'Informatique de l

480

Shaping the vision, the identity and the cultural i mage of European places  

Microsoft Academic Search

European regions and cities have been, especially d uring the last twenty years, characterised by a plurality of efforts to define their vision, to con struct their identity and to shape their images, in order to become more attractive and, consequently, competitive, and also to increase their market share in a globalised economy. Further to this, places have be en

Alex Deffner; Theodore Metaxas

2005-01-01

481

ATTITUDES TOWARDS VEGETATION IN A DESERT URBAN FOREST: CREATING A SENSE OF PLACE  

Microsoft Academic Search

Attitudes towards vegetation are especially impor- tant in Tucson, located in the Sonoran Desert, where water availability is limited and where native vegetation can play an important role in the city's image and sense of place. This paper reports on interviews with long-term Tucson residents and a survey of students who are relatively new to Tucson. Vegetation was seen as

Christina B. Kennedy; Ervin H. Zube

1991-01-01

482

Special Places for Children--The Schools in Reggio Emilia, Italy.  

ERIC Educational Resources Information Center

Four articles discuss the child-centered approach of the preschools of Reggio Emilia, Italy: "Not Just Anywhere: Making Child Care Centers into 'Particular' Places" (Lella Gandini); "Your Image of the Child" (Loris Malaguzzi); "What Can We Learn from Reggio Emilia: An Italian-American Collaboration (Lella Gandini); and "Unpacking My Questions and…

Gandini, Lella; And Others

1994-01-01

483

All Intimate Grammars Leak: Reflections on "Indian Languages in Unexpected Places"  

ERIC Educational Resources Information Center

In this discussion of a set of studies that fits the trope of "Indian Languages in Unexpected Places," I explore the obvious necessity of developing a relevant notion of linguistic "leakage" following a famous image from the writings of the linguistic anthropologist Edward Sapir. Though in its original use, the concept applied more to the order of…

Kroskrity, Paul V.

2011-01-01

484

Commodification of Rural Places: A Narrative of Social Fields, Rural Development, and Football  

ERIC Educational Resources Information Center

One of the most significant recent elements of restructuring in rural areas is the transition from an economy based on agricultural production to an economy based on the countryside as a form of commodity. In this transition process, different narratives or images of an area are produced to promote villages and other places in the countryside as…

Floysand, Arnt; Jakobsen, Stig-Erik

2007-01-01

485

Multi-resolution image inpainting  

Microsoft Academic Search

Digital inpainting is an image interpolation mechanism, which can automatically restore damaged or partially removed image. Most inpainting mechanisms use a singular resolution approach on the extrapolation or interpolation of pixels. We propose a multi-resolution algorithm, which can take into consideration the different levels of details. The algorithm was tested on 1000 still images, with an evaluation showing the effectiveness

Timothy K. Shih; Liang-Chen Lu; Ying-Hong Wang; Rong-Chi Chang

2003-01-01

486

Ancillary-service details: Dynamic scheduling  

SciTech Connect

Dynamic scheduling (DS) is the electronic transfer from one control area to another of the time-varying electricity consumption associated with a load or the time-varying electricity production associated with a generator. Although electric utilities have been using this technique for at least two decades, its use is growing in popularity and importance. This growth is a consequence of the major changes under way in US bulk-power markets, in particular efforts to unbundle generation from transmission and to increase competition among generation providers. DS can promote competition and increase choices. It allows consumers to purchase certain services from entities outside their physical-host area and it allows generators to sell certain services to entities other than their physical host. These services include regulation (following minute-to-minute variations in load) and operating reserves, among others. Such an increase in the number of possible suppliers and customers should encourage innovation and reduce the costs and prices of providing electricity services. The purpose of the project reported here was to collect and analyze data on utility experiences with DS. Chapter 2 provides additional details and examples of the definitions of DS. Chapter 3 explains why DS might be an attractive service that customers and generators, as well as transmission providers, might wan to use. Chapter 4 presents some of the many current DS examples the authors uncovered in their interviews. Chapter 5 discusses the costs and cost-effectiveness of DS. Chapter 6 explains what they believe can and cannot be electronically moved from one control area to another, primarily in terms of the six ancillary services that FERC defined in Order 888. Chapter 7 discusses the need for additional research on DS.

Hirst, E.; Kirby, B.

1997-01-01

487

Local detailed balance: a microscopic derivation  

NASA Astrophysics Data System (ADS)

Thermal contact is the archetype of non-equilibrium processes driven by constant non-equilibrium constraints when the latter are enforced by reservoirs exchanging conserved microscopic quantities. At a mesoscopic scale only the energies of the macroscopic bodies are accessible together with the configurations of the contact system. We consider a class of models where the contact system, as well as macroscopic bodies, have a finite number of possible configurations. The global system, with only discrete degrees of freedom, has no microscopic Hamiltonian dynamics, but it is shown that, if the microscopic dynamics is assumed to be deterministic and ergodic and to conserve energy according to some specific pattern, and if the mesoscopic evolution of the global system is approximated by a Markov process as closely as possible, then the mesoscopic transition rates obey three constraints. In the limit where macroscopic bodies can be considered as reservoirs at thermodynamic equilibrium (but with different intensive parameters), the mesoscopic transition rates turn into transition rates for the contact system and the third constraint becomes local detailed balance; the latter is generically expressed in terms of the microscopic exchange entropy variation, namely the opposite of the variation of the thermodynamic entropy of the reservoir involved in a given microscopic jump of the contact system configuration. For a finite-time evolution after contact has been switched on, we derive a fluctuation relation for the joint probability of the heat amounts received from the various reservoirs. The generalization to systems exchanging energy, volume and matter with several reservoirs, with a possible conservative external force acting on the contact system, is given explicitly.

Bauer, M.; Cornu, F.

2015-01-01

488

Brown Dwarfs: Discovery and Detailed Studies  

NASA Technical Reports Server (NTRS)

We obtained the optical and IR spectra of Gliese 229B and identified Cs, I, and CO features - as expected in theoretical models. Our optical IR spectrum showed that most of the refractory metals have condensed out of the atmosphere and the presence of Cs, I and CO shows evidence for disequilibrium chemistry. We reported orbital evidence for Gliese 229B. The HST measured optical magnitudes provide additional evidence for the absence of dust in the atmosphere of this cool object. The luminosity of brown dwarfs depend on their masses and ages and in order to interpret the results of the survey we have carried out an extensive Monte Carlo analysis. Our conclusion is that warm brown dwarfs are rare, as companions in the orbital period range beyond approximately 30 - 50 AU. The Palomer survey poses no constraint for brown dwarfs in planetary orbits similar to those of the outer planets. We have just started a program of imaging nearby stars with the newly commissioned AO system at Palomar and Keck and have already found a brown dwarf candidate.

Kulkarni, Shrinivas R.

2001-01-01

489

The birth place of the type Ic Supernova 2007gr  

E-print Network

We report our attempts to locate the progenitor of the peculiar type Ic SN 2007gr in HST pre-explosion images of the host galaxy, NGC 1058. Aligning adaptive optics Altair/NIRI imaging of SN 2007gr from the Gemini (North) Telescope with the pre-explosion HST WFPC2 images, we identify the SN position on the HST frames with an accuracy of 20 mas. Although nothing is detected at the SN position we show that it lies on the edge of a bright source, 134+/-23 mas (6.9 pc) from its nominal centre. Based on its luminosity we suggest that this object is possibly an unresolved, compact and coeval cluster and that the SN progenitor was a cluster member, although we note that model profile fitting favours a single bright star. We find two solutions for the age of this assumed cluster; 7-/+0.5 Myrs and 20-30 Myrs, with turn-off masses of 28+/-4 Msun and 12-9 Msun respectively. Pre-explosion ground-based K-band images marginally favour the younger cluster age/higher turn-off mass. Assuming the SN progenitor was a cluster member, the turn-off mass provides the best estimate for its initial mass. More detailed observations, after the SN has faded, should determine if the progenitor was indeed part of a cluster, and if so allow an age estimate to within ~2 Myrs thereby favouring either a high mass single star or lower mass interacting binary progenitor.

R. Mark Crockett; Justyn R. Maund; Stephen J. Smartt; Seppo Mattila; Andrea Pastorello; Jonathan Smoker; Andrew W. Stephens; Johan Fynbo; John J. Eldridge; I. John Danziger; Christopher R. Benn

2007-11-28

490

There's no place like home: Earth  

NSDL National Science Digital Library

This news story from NASA's Eyes on the Earth website highlights three short videos: "Majestic Planet," "Earth: The Water Planet," and "Frozen Earth." In these videos, images of the earth taken from satellites and space stations are accompanied by music, visualizations, and informational text.

2010-12-10

491

A deep dive into NGC 604 with Gemini/NIRI imaging  

E-print Network

The giant HII region NGC 604 constitutes a complex and rich population to studying detail many aspects of massive star formation, such as their environments and physical conditions, the evolutionary processes involved, the initial mass function for massive stars and star-formation rates, among many others. Here, we present our first results of a near-infrared study of NGC 604 performed with NIRI images obtained with Gemini North. Based on deep JHK photometry, 164 sources showing infrared excess were detected, pointing to the places where we should look for star-formation processes currently taking place. In addition, the color-color diagram reveals a great number of objects that could be giant/supergiant stars or unresolved, small, tight clusters. A extinction map obtained based on narrow-band images is also shown.

Farina, Cecilia; Barba, Rodolfo H

2009-01-01

492

Image processing and recognition for biological images  

PubMed Central

This paper reviews image processing and pattern recognition techniques, which will be useful to analyze bioimages. Although this paper does not provide their technical details, it will be possible to grasp their main tasks and typical tools to handle the tasks. Image processing is a large research area to improve the visibility of an input image and acquire some valuable information from it. As the main tasks of image processing, this paper introduces gray-level transformation, binarization, image filtering, image segmentation, visual object tracking, optical flow and image registration. Image pattern recognition is the technique to classify an input image into one of the predefined classes and also has a large research area. This paper overviews its two main modules, that is, feature extraction module and classification module. Throughout the paper, it will be emphasized that bioimage is a very difficult target for even state-of-the-art image processing and pattern recognition techniques due to noises, deformations, etc. This paper is expected to be one tutorial guide to bridge biology and image processing researchers for their further collaboration to tackle such a difficult target. PMID:23560739

Uchida, Seiichi

2013-01-01

493

Space Place: Make Asteroids You Can Eat  

NSDL National Science Digital Library

This hands-on, food preparation activity is designed to familiarize children with asteroids: what they are, where they orbit, how they formed, what they look like (making mashed potato mixture look like an asteroid), and why we care about them. Introduces NASA's Deep Space 1 mission that flew very close to Asteroid Braille. The Space Place is an educational NASA site for children and adults with activities and facts related to the exploration of space—past, current, and future. Some activities are computer-interactive and many are real-world-interactive.

NASA JPL

494

A Detailed Thermal Analysis of the Binospec Spectrograph  

NASA Astrophysics Data System (ADS)

Refractive optics in astronomical instruments are potentially sensitive to temperature gradients and temperature transients. This sensitivity arises from thermally dependent refractive indices, lens spacings, and lens dimensions. In addition, thermal gradients in the instrument structure can cause undesirable image shifts at the detector that degrade instrument calibration. We have therefore undertaken a detailed thermal analysis of Binospec, a wide-field optical spectrograph under development for the converted Multiple Mirror Telescope (MMT). Our goals are to predict the temperature gradients that will be present in the Binospec optics and structure under realistic operating conditions and to determine how design choices affect these gradients. We begin our analysis by deriving thermal time constants for instrument subassemblies to estimate the magnitude of temperature gradients in the instrument and to determine where detailed thermal models are required. We then generate a low-resolution finite-difference model of the entire instrument and high-resolution models of sensitive subassemblies. This approach to thermal analysis is applicable to a variety of other instruments. We use measurements of the ambient temperature in the converted MMT's dome to model Binospec's thermal environment. In moderate conditions, the external temperature changes by up to 8°C over 48 hr, while in extreme conditions the external temperature changes by up to 17°C in 24 hr. During moderate conditions, we find that the Binospec lens groups develop ~0.14°C axial and radial temperature gradients and that lens groups of different mass develop ~0.5°C temperature differences; these numbers are doubled for the extreme conditions. Internal heat sources do not significantly affect these results; heat flow from the environment dominates. The instrument must be periodically opened to insert new aperture masks, but we find that the resulting temperature gradients and thermal stresses in the optics are small. Image shifts at the detector caused by thermal deflections of the Binospec optical bench structure are ~0.1 pixel hr-1. We conclude that the proposed Binospec design has acceptable thermal properties, and we briefly discuss design changes to further reduce temperature gradients.

Brown, Warren R.; Fabricant, Daniel G.; Boyd, David A.

2002-12-01

495

The place for performance in the digital holographic space  

NASA Astrophysics Data System (ADS)

In this series of digital art holograms and lenticulars, we are examining different kinds of movement inside the digital holographic space explored by Elizabeth Sandford-Richardson, a visual performance artist. During the process of capturing the image, we used the HoloCam Portable Light System, equipped with Canon and Nikon cameras positioned at different heights and angles, in order to improve the rendering of the holographic space. Based on the "Performativity of Performance Documentation" a notion introduced by Philip Auslanderi we revisit some authors that have been working in the "theatrical" practise, mainly in photography, adding the possibility of movement in 3D space. We must realise that the movement of the viewer in front of a digital holographic image creates the performance that he/she is looking at. We should consider the physical space, outside the hologram, and this kind of "performance acts", also part of the work. In summary, we propose a reflection on the digital holographic space, time, movement and its place in contemporary art.

Azevedo, Isabel; Richardson, Martin; Sandford-Richardson, Elizabeth; Bernardo, Luis Miguel; Crespo, Helder

2014-02-01

496

Detailed Design of the Heliophysics Event Knowledgebase (HEK)  

NASA Astrophysics Data System (ADS)

We present the Heliophysics Event Registry (HER) and the Heliophysics Coverage Registry (HCR), which serve as two components of the Heliophysics Event Knowledgebase (HEK). Using standardized XML formats built upon the IVOA VOEvent specification, events can be ingested, stored, and later searched upon. Various web services and SolarSoft routines are available to aid in these functions. One source of events for the HEK is an automated Event Detection System (EDS) that continuously runs feature finding modules on SDO data. Modules are primarily supplied by the Smithsonian Astrophysical Observatory-led Feature Finding Team. The distributed system will keep up with SDO's data rate and issue space weather alerts in near-real time. Some modules will be run on all data while others are run in response to certain solar phenomena found by other modules in the system. Panorama is a software tool used for rapid visualization of large volumes of solar image data in multiple channels/wavelengths. With the EVACS front-end GUI tool, Panorama allows the user to, in real-time, change channel pixel scaling, weights, alignment, blending and colorization of the data. The user can also easily create WYSIWYG movies and launch the Annotator tool to describe events and features the user observes in the data. Panorama can also be used to drive clustered HiperSpace walls using the CGLX toolkit. The Event Viewer and Control Software (EVACS) provides a GUI that the user can search both the HER and HCR with. By specifying a start and end time and selecting the types of events and instruments that are of interest, EVACS will display the events on a full disk image of the sun while displaying more detailed information for the events. As mentioned, the user can also launch Panorama via EVACS.

Somani, Ankur; Seguin, R.; Timmons, R.; Freeland, S.; Hurlburt, N.; Kobashi, A.; Jaffey, A.

2010-05-01

497

The Coldest Place in Ireland "The coldest place in Ireland" is the title of this year's winning  

E-print Network

The Coldest Place in Ireland "The coldest place in Ireland in Ireland" refers to the Quantum Optics Laboratory in the Tyndall National Institute which also happens to be the coldest place in Ireland. Laura explained

Schellekens, Michel P.

498

Prey processing in central place foragers.  

PubMed

The importance of prey processing as an integral part of foraging behaviour has long been acknowledged, but little theoretical consideration has been given to the optimization of the processing behaviour itself. Processing renders food down to ingestible, palatable portions, and also removes non-essential mass thus reducing transport costs. Here, several models of processing are developed for a central place forager. When the forager has to make a simple choice between processing the prey and not, a critical distance from the central place can be calculated, beyond which it is optimal to process prey. If the forager also decides on how much of the prey to remove, the optimal amount to be removed can also be calculated. Imposing a ceiling on overall metabolic expenditure is shown to reduce the distances at which processing becomes the optimal strategy. The models are tested using parameters derived for a provisioning merlin, Falco columbarius, and alternative explanations as to why observed behaviours should differ from the optimal behaviour predicted are discussed. PMID:10640435

Rands, S A; Houston, A I; Gasson, C E

2000-01-21

499

Space Radar Image of Safsaf Oasis, Egypt  

NASA Technical Reports Server (NTRS)

This three-frequency space radar image of south-central Egypt demonstrates the unique capability of imaging radar to penetrate thin sand cover in arid regions to reveal hidden details below the surface. Nearly all of the structures seen in this image are invisible to the naked eye and to conventional optical satellite sensors. Features appear in various colors because the three separate radar wavelengths are able to penetrate the sand to different depths. Areas that appear red or orange are places that can be seen only by the longest wavelength, L-band, and they are the deepest of the buried structures. Field studies in this area indicate L-band can penetrate as much as 2 meters (6.5 feet) of very dry sand to image buried rock structures. Ancient drainage channels at the bottom of the image are filled with sand more than 2 meters (6.5 feet) thick and therefore appear dark because the radar waves cannot penetrate them. The fractured orange areas at the top of the image and the blue circular structures in the center of the image are granitic areas that may contain mineral ore deposits. Scientists are using the penetrating capabilities of radar imaging in desert areas in studies of structural geology, mineral exploration, ancient climates, water resources and archaeology. This image is 51.9 kilometers by 30.2 kilometers (32.2 miles by 18.7 miles) and is centered at 22.7 degrees north latitude, 29.3degrees east longitude. North is toward the upper right. The colors are assigned to different radar frequencies and polarizations as follows: red is L-band, horizontally transmitted and received; green is C-band, horizontally transmitted and received; and blue is X-band, vertically transmitted and received. The image was acquired by the Spaceborne Imaging Radar-C/X-band Synthetic Aperture Radar (SIR-C/X-SAR) on April 16, 1994, on board the space shuttle Endeavour. SIR-C/X-SAR, a joint mission of the German, Italian and United States space agencies, is part of NASA's Mission to Planet Earth program.

1994-01-01

500

Our Place in Space: The Journey Begins  

NSDL National Science Digital Library

This is an interactive feature in which in which younger students explore space. After an introduction by astronomer Neil de Grasse Tyson, director of the Hayden Planetarium, they will follow a series of links that introduce various topics in astronomy: gravity; the planet Mars; our sun; our galaxy (the Milky Way); and the origin of the universe (the Big Bang). The feature concludes with a game in which students try to match images of astronomical objects with their descriptions.