The Trypanosoma cruzi Satellite DNA OligoC-TesT and Trypanosoma cruzi Kinetoplast DNA OligoC-TesT for Diagnosis of Chagas Disease: A Multi-cohort Comparative Evaluation Study

Science.gov (United States)

De Winne, Koen; Büscher, Philippe; Luquetti, Alejandro O.; Tavares, Suelene B. N.; Oliveira, Rodrigo A.; Solari, Aldo; Zulantay, Ines; Apt, Werner; Diosque, Patricio; Monje Rumi, Mercedes; Gironès, Nuria; Fresno, Manuel; Lopez-Velez, Rogelio; Perez-Molina, José A.; Monge-Maillo, Begoña; Garcia, Lineth; Deborggraeve, Stijn

2014-01-01

Background The Trypanosoma cruzi satellite DNA (satDNA) OligoC-TesT is a standardised PCR format for diagnosis of Chagas disease. The sensitivity of the test is lower for discrete typing unit (DTU) TcI than for TcII-VI and the test has not been evaluated in chronic Chagas disease patients. Methodology/Principal Findings We developed a new prototype of the OligoC-TesT based on kinetoplast DNA (kDNA) detection. We evaluated the satDNA and kDNA OligoC-TesTs in a multi-cohort study with 187 chronic Chagas patients and 88 healthy endemic controls recruited in Argentina, Chile and Spain and 26 diseased non-endemic controls from D.R. Congo and Sudan. All specimens were tested in duplicate. The overall specificity in the controls was 99.1% (95% CI 95.2%–99.8%) for the satDNA OligoC-TesT and 97.4% (95% CI 92.6%–99.1%) for the kDNA OligoC-TesT. The overall sensitivity in the patients was 67.9% (95% CI 60.9%–74.2%) for the satDNA OligoC-TesT and 79.1% (95% CI 72.8%–84.4%) for the kDNA OligoC-Test. Conclusions/Significance Specificities of the two T. cruzi OligoC-TesT prototypes are high on non-endemic and endemic controls. Sensitivities are moderate but significantly (p = 0.0004) higher for the kDNA OligoC-TesT compared to the satDNA OligoC-TesT. PMID:24392177

The 160 TES bolometer read-out using FDM for SAFARI

Science.gov (United States)

Hijmering, R. A.; den Hartog, R. H.; van der Linden, A. J.; Ridder, M.; Bruijn, M. P.; van der Kuur, J.; van Leeuwen, B. J.; van Winden, P.; Jackson, B.

2014-07-01

For the read out of the Transition Edge Sensors (TES) bolometer arrays of the SAFARI instrument on the Japanese background-limited far-IR SPICA mission SRON is developing a Frequency Domain Multiplexing (FDM) read-out system. The next step after the successful demonstration of the read out of 38 TES bolometers using FDM was to demonstrate the FDM readout of the required 160 TES bolometers. Of the 160 LC filter and TES bolometer chains 151 have been connected and after cooldown 148 of the resonances could be identified. Although initial operation and locking of the pixels went smoothly the experiment revealed several complications. In this paper we describe the 160 pixel FDM set-up, show the results and discuss the issues faced during operation of the 160 pixel FDM experiment.

Mātes depresijas simptomu un dusmu saistība ar mātes audzināšanas stiliem un bērna uzvedību

OpenAIRE

Krūmiņa, Evija

2015-01-01

Šī bakalaura darba mērķis bija noskaidrot saistības starp mātes depresijas simptomu un dusmu rādītājiem ar mātes audzināšanas stiliem un bērna uzvedības izpausmēm respondentu grupā, kuru bērni ir vecumā no 4-6 gadiem. Pētījuma izlasi veidoja 63 mātes vecumā no 21 līdz 42 gadiem (vidējais vecums bija 29 gadi). Pētījumā mātes dusmu un depresijas rādītāju noteikšanai tika izmantota Traumu simptomu aptauja (Trauma Symptom Inventory, Briere, 1995), Vecāku audzināšanas stila aptauja (Parental Autho...

Komparasi Metode Penyetaraan Tes Menurut teori Respons Butir

Directory of Open Access Journals (Sweden)

Erna Miyatun

2004-01-01

Full Text Available Penelitian ini bertujuan menemukan metode penyetaraan tes dengan teori respons butir yang paling akurat. Sebelum dilakukan pengujian keakuratan metode penyetaraan tes, terlebih dahulu dilakukan: 1 Pemeriksaan setara atau tidaknya perangkat tes, 2 Penemuan persamaan konversi antarpaket soal yang tidak setara dan 3 Estimasi parameter butir. Penentuan metode penyetaraan tes yang akurat didasarkan pada besarnya kesalahan standar penyetaraan (SEE; yang paling akurat adalah metode penyetaraan tes yang mempunyai SEE paling kecil. Dalam penelitian ini, terdapat dua macam objek penelitian yaitu paket soal dan jawaban peserta EBTANAS. Soal EBTANAS terdiri dari 3 paket soal utama, 1 paket soal susulan, dan 1 paket soal cadangan. Peserta EBTANAS SLTP di Jawa Tengah Tahun Ajaran 1998/1999 terdiri dari 370.187 siswa. Teknik Purposive Sampling digunakan untuk menentukan sampel paket soal, yaitu ketiga paket soal utama terpilih sebagai sampel penelitian. Teknik Cluster Stratified Systematic Random Sampling digunakan untuk menentukan sampel jawaban peserta EBTANAS. Jawaban peserta sebanyak 8.251, terpilih sebagai sampel penelitian. Paket soal EBTANAS SLTP bidang studi Matematika dan data jawaban peserta tes, diperoleh melalui pengambilan data dokumentasi. Keparalelan tes diuji dengan analisis varians, uji Scheffe, dan uji Levene. Penyetaraan tes dilakukan dengan metode: Rerata dan Sigma, Rerata dan Sigma Tegar, dan Kurva Karakteristik. Estimasi parameter butir dilakukan dengan analisis program Bilog. Hasil analisis menunjukkan, pasangan paket soal utama-1 dan 2 serta pasangan paket soal utama-1 dan 3 tidak paralel, sehingga diperlukan proses penyetaraan. Pasangan paket soal utama-2 dan paket soal utama-3 bersifat paralel. Oleh karena itu tidak diperlukan proses penyetaraan. Penyetaraan paket soal utama-1 ke paket soal utama-2, dengan metode Rerata dan Sigma didapatkan persamaan konversi X2 - 1,19495 X] + 0,25766; dengan metode Rerata dan Sigma Tegar, X2 = 0

Long-term stability of TES satellite radiance measurements

Directory of Open Access Journals (Sweden)

T. C. Connor

2011-07-01

Full Text Available The utilization of Tropospheric Emission Spectrometer (TES Level 2 (L2 retrieval products for the purpose of assessing long term changes in atmospheric trace gas composition requires knowledge of the overall radiometric stability of the Level 1B (L1B radiances. The purpose of this study is to evaluate the stability of the radiometric calibration of the TES instrument by analyzing the difference between measured and calculated brightness temperatures in selected window regions of the spectrum. The Global Modeling and Assimilation Office (GMAO profiles for temperature and water vapor and the Real-Time Global Sea Surface Temperature (RTGSST are used as input to the Optimal Spectral Sampling (OSS radiative transfer model to calculate the simulated spectra. The TES reference measurements selected cover a 4-year period of time from mid 2005 through mid 2009 with the selection criteria being; observation latitudes greater than −30° and less than 30°, over ocean, Global Survey mode (nadir view and retrieved cloud optical depth of less than or equal to 0.01. The TES cloud optical depth retrievals are used only for screening purposes and no effects of clouds on the radiances are included in the forward model. This initial screening results in over 55 000 potential reference spectra spanning the four year period. Presented is a trend analysis of the time series of the residuals (observation minus calculations in the TES 2B1, 1B2, 2A1, and 1A1 bands, with the standard deviation of the residuals being approximately equal to 0.6 K for bands 2B1, 1B2, 2A1, and 0.9 K for band 1A1. The analysis demonstrates that the trend in the residuals is not significantly different from zero over the 4-year period. This is one method used to demonstrate that the relative radiometric calibration is stable over time, which is very important for any longer term analysis of TES retrieved products (L2, particularly well-mixed species such as carbon dioxide and methane.

Fabrication of close-packed TES microcalorimeter arrays using superconducting molybdenum/gold transition-edge sensors

Science.gov (United States)

Finkbeiner, F. M.; Brekosky, R. P.; Chervenak, J. A.; Figueroa-Feliciano, E.; Li, M. J.; Lindeman, M. A.; Stahle, C. K.; Stahle, C. M.; Tralshawala, N.

2002-02-01

We present an overview of our efforts in fabricating Transition-Edge Sensor (TES) microcalorimeter arrays for use in astronomical x-ray spectroscopy. Two distinct types of array schemes are currently pursued: 5×5 single pixel TES array where each pixel is a TES microcalorimeter, and Position-Sensing TES (PoST) array. In the latter, a row of 7 or 15 thermally-linked absorber pixels is read out by two TES at its ends. Both schemes employ superconducting Mo/Au bilayers as the TES. The TES are placed on silicon nitride membranes for thermal isolation from the structural frame. The silicon nitride membranes are prepared by a Deep Reactive Ion Etch (DRIE) process into a silicon wafer. In order to achieve the concept of closely packed arrays without decreasing its structural and functional integrity, we have already developed the technology to fabricate arrays of cantilevered pixel-sized absorbers and slit membranes in silicon nitride films. Furthermore, we have started to investigate ultra-low resistance through-wafer micro-vias to bring the electrical contact out to the back of a wafer. .

Parametric Characterization of TES Detectors Under DC Bias

Science.gov (United States)

Chiao, Meng P.; Smith, Stephen James; Kilbourne, Caroline A.; Adams, Joseph S.; Bandler, Simon R.; Betancourt-Martinez, Gabriele L.; Chervenak, James A.; Datesman, Aaron M.; Eckart, Megan E.; Ewin, Audrey J.;

Training Exit Survey (TES) Individual Campus

Data.gov (United States)

U.S. Department of Health & Human Services — The TES Individual dataset contains information at the individual-level about the persons who attend a GLS funded training event. This dataset includes variables...

Using TES retrievals to investigate PAN in North American biomass burning plumes

Science.gov (United States)

Fischer, Emily V.; Zhu, Liye; Payne, Vivienne H.; Worden, John R.; Jiang, Zhe; Kulawik, Susan S.; Brey, Steven; Hecobian, Arsineh; Gombos, Daniel; Cady-Pereira, Karen; Flocke, Frank

2018-04-01

Peroxyacyl nitrate (PAN) is a critical atmospheric reservoir for nitrogen oxide radicals, and plays a lead role in their redistribution in the troposphere. We analyze new Tropospheric Emission Spectrometer (TES) PAN observations over North America from July 2006 to July 2009. Using aircraft observations from the Colorado Front Range, we demonstrate that TES can be sensitive to elevated PAN in the boundary layer (˜ 750 hPa) even in the presence of clouds. In situ observations have shown that wildfire emissions can rapidly produce PAN, and PAN decomposition is an important component of ozone production in smoke plumes. We identify smoke-impacted TES PAN retrievals by co-location with NOAA Hazard Mapping System (HMS) smoke plumes. Depending on the year, 15-32 % of cases where elevated PAN is identified in TES observations (retrievals with degrees of freedom (DOF) > 0.6) overlap smoke plumes during July. Of all the retrievals attempted in the July 2006 to July 2009 study period, 18 % is associated with smoke . A case study of smoke transport in July 2007 illustrates that PAN enhancements associated with HMS smoke plumes can be connected to fire complexes, providing evidence that TES is sufficiently sensitive to measure elevated PAN several days downwind of major fires. Using a subset of retrievals with TES 510 hPa carbon monoxide (CO) > 150 ppbv, and multiple estimates of background PAN, we calculate enhancement ratios for tropospheric average PAN relative to CO in smoke-impacted retrievals. Most of the TES-based enhancement ratios fall within the range calculated from in situ measurements.

Using TES retrievals to investigate PAN in North American biomass burning plumes

Directory of Open Access Journals (Sweden)

E. V. Fischer

2018-04-01

Full Text Available Peroxyacyl nitrate (PAN is a critical atmospheric reservoir for nitrogen oxide radicals, and plays a lead role in their redistribution in the troposphere. We analyze new Tropospheric Emission Spectrometer (TES PAN observations over North America from July 2006 to July 2009. Using aircraft observations from the Colorado Front Range, we demonstrate that TES can be sensitive to elevated PAN in the boundary layer (∼ 750 hPa even in the presence of clouds. In situ observations have shown that wildfire emissions can rapidly produce PAN, and PAN decomposition is an important component of ozone production in smoke plumes. We identify smoke-impacted TES PAN retrievals by co-location with NOAA Hazard Mapping System (HMS smoke plumes. Depending on the year, 15–32 % of cases where elevated PAN is identified in TES observations (retrievals with degrees of freedom (DOF > 0.6 overlap smoke plumes during July. Of all the retrievals attempted in the July 2006 to July 2009 study period, 18 % is associated with smoke . A case study of smoke transport in July 2007 illustrates that PAN enhancements associated with HMS smoke plumes can be connected to fire complexes, providing evidence that TES is sufficiently sensitive to measure elevated PAN several days downwind of major fires. Using a subset of retrievals with TES 510 hPa carbon monoxide (CO > 150 ppbv, and multiple estimates of background PAN, we calculate enhancement ratios for tropospheric average PAN relative to CO in smoke-impacted retrievals. Most of the TES-based enhancement ratios fall within the range calculated from in situ measurements.

Frequency-domain multiplexing of TES microcalorimeter array with CABBAGE

International Nuclear Information System (INIS)

Iyomoto, N.; Ichitsubo, T.; Mitsuda, K.; Yamasaki, N.Y.; Fujimoto, R.; Oshima, T.; Futamoto, K.; Takei, Y.; Fujimori, T.; Yoshida, K.; Ishisaki, Y.; Morita, U.; Koga, T.; Shinozaki, K.; Sato, K.; Takai, N.; Ohashi, T.; Miyazaki, T.; Nakayama, S.; Tanaka, K.; Morooka, T.; Chinone, K.

2004-01-01

Properties of Transition-Edge Sensor (TES) microcalorimeters operated with AC bias are studied utilizing the calorimeter Wheatstone bridge circuit called Calorimeter Bridge Biased by an AC Generator (CABBAGE). The CABBAGE eliminates the AC carrier significantly, thus enables us to study the AC responses of the TES with high sensitivity. We tested two kinds of TES devices operating at 110 and 440 mK, respectively. With the 110 mK device biased with 25 kHz, an energy resolution of 28 eV is obtained for Mn Kα line. On the other hand, we multiplexed the signals from two 440 mK device biased with 50 and 20 kHz, respectively, and obtained 167 and 271 eV energy resolutions. Even at the balance point of the bridge, AC signal did not disappear and odd-order harmonics were observed. They are considered to arise from the current dependence of the TES resistance, which is characterized by β≡d log R/d log I. Numerical solution for the CABBAGE response can reproduce the experimental results well if β=0.24±0.02. Since the harmonics may cause severe problem in the SQUID operation even after attenuated by a band-pass filter, especially at high bias frequency operation such as several hundred kHz, it is important to make β small

Simatik : Aplikasi Simulasi Bank Soal Tes Potensi Akademik (TPA Berbasis Multi Platform

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Made Hendra Yudha Saputra

2017-01-01

Full Text Available Abstrak---Penelitian ini bertujuan untuk : (1 menghasilkan rancang bangun dan implementasi Simatik : Aplikasi Simulasi Bank Soal Tes Potensi Akademik (TPA Berbasis Multi Platform, (2 Mengetahui respon dari Pengguna terhadap Simatik : Aplikasi Simulasi Bank Soal Tes Potensi Akademik (TPA Berbasis Multi Platform. Dalam perancangannya, aplikasi ini akan menggunakan arsitektur client-server untuk melakukan proses pertukaran data. Perancangan dilakukan dengan menggunakan model fungsional berupa UML. Model fungsional berupa UML tersebut diimplementasikan dalam sebuah framework yaitu Phonegap dengan bahasa pemrograman HTML5. Untuk mengetahui respon terhadap Simatik : Aplikasi Simulasi Bank Soal Tes Potensi Akademik (TPA Berbasis Multi Platform ini diperoleh dengan menggunakan metode angket. Hasil akhirnya yaitu berupa Aplikasi Simatik berbasis Multi Platform yang dapat diinstall pada perangkat mobile untuk digunakan dalam latihan soal-soal yang terkait dengan Tes Potensi Akademik (TPA. Berdasarkan hasil uji usability, aplikasi Simatik berbasis Multi Platform ini mendapatkan persentase hasil sebesar 95,6 % dengan kategori sangat baik yang berarti dalam pengoperasiannya aplikasi ini mudah untuk digunakan dan dapat berfungsi sesuai dengan fungsi seharusnya. Kata Kunci : Phonegap, Multi Platform, Client Server, Mobile, Tes Potensi Akademik (TPA, Simatik   Abstract--- This research is purpose to : (1 produce generate design and implementation Simatik : Aplikasi Simulasi Bank Soal Tes Potensi Akademik (TPA Berbasis Multi Platform (2 To knowing the response of users to Simatik : Aplikasi Simulasi Bank Soal Tes Potensi Akademik (TPA Berbasis Multi Platform. In its design, this application will use the client-server architecture to make the exchange process of data. The design were done by using a functional model UML form. The functional model UML form is implemented within a framework that is phonegap with HTML 5 programming languages. To determine the

Karakteristik Pengembangan Tes Keterampilan Berpiki Kritis Bumi dan Antariksa Untuk Calon Guru

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Taufik Ramlan Ramalis

2015-12-01

Full Text Available Abstract The purpose of this study was to analyze the characteristics of the f critical thinking skills test and measurement errors according to classical test theory and item response theory. The test is based on the basic concepts and essential principles of the Earth Space, with reference to the core critical thinking skills. The research method used a mixed methods design with embedded experimental models. The analysis in this study is based on 41 responses of students teacher prospective who have taken IPBA courses at the Physics education department of FPMIPA UPI. Based on classical test theory indicates that of 18 test items were analyzed 15 items were good quality, reliability index of 0.89. From information function and standard error measurement of item response theory, the overall conclusion of this evaluation is that the model 2PL is better to use when evaluating the test. Keywords: critical thinking skills, earth and space, classical test theory, item response theory Abstrak Tujuan penelitian ini untuk menganalisis karakteristik tes keterampilan berpikir kritis serta kesalahan pengukuran menurut teori tes klasik dan teori respons item. Tes disusun berdasarkan konsep dasar dan prinsip esensial sains Bumi dan Antariksa, dengan mengacu pada inti keterampilan berpikir kritis. Metode penelitiannya menggunakan mixed methods dengan desain embedded experimental model. Analisis dalam penelitian ini didasarkan pada respons 41 mahasiswa calon guru yang telah mengambil matakuliah IPBA di departemen pendidikan Fisika FPMIPA UPI. Berdasarkan teori tes klasik menunjukkan bahwa dari 18 item tes yang dianalisis 15 item yang berkualitas baik, indeks reliabilitas 0,89. Dari fungsi informasi dan pengukuran kesalahan baku pada teori respons item, kesimpulan keseluruhan dari evaluasi ini adalah bahwa model 2PL adalah lebih baik untuk digunakan ketika mengevaluasi tes. Kata-kata kunci: keterampilan berpikir kritis, bumi dan antariksa, teori tes klasik

Contribution à la connaissance des micromycètes du Maroc. Cas ...

African Journals Online (AJOL)

Contribution à la connaissance des micromycètes du Maroc. Cas des ... et qualitative des micromycètes d'origine terrestre de la région de Rabat (Maroc). ... elles ont été entraînées dans le milieu aquatique par différents moyens de transport.

Pengembangan Sistem E-Learning yang Adaptif untuk Pelatihan dan Tes TOEFL

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Sofian Arifianto

2012-09-01

Full Text Available TOEFL (Test of English as a Foreign Language memiliki 3 bagian jenis soal, Listening Comprehension, Structure & Write Expression dan Reading Comprehension. Untuk saat ini, kebanyakan TOEFL dilakukan dengan manual, yaitu dengan pengerjaan dengan kertas dan membutuhkan waktu beberapa hari agar bisa mengetahui hasil tes tersebut. Dalam artikel ini, LMS Dokeos dikembangkan dengan beberapa perubahan, sehingga didapatkan suatu sistem yang adaptif yang mampu menganalisis kelemahan user dan memberikan soal yang menjadi kelemahan. Dokeos sendiri dibangun dengan bahasa pemrograman PHP&MySQL. Pada sistem ini ada 2 macam tes, Pretest dan posttest. Pretest merupakan suatu latihan TOEFL. Sedangkan Posttest merupakan TOEFL yang sesungguhnya. Posttest bisa dilakukan setelah user lulus dari pretest. Nilai untuk kelulusan dalam  pretest dan posttest ini adalah 477. Pada pretest, sistem bisa menganalisis kelemahan seorang user berdasarkan nilai tes yang telah didapat dari tiap section. Pengguna juga bisa memonitor nilai yang didapatkan pada saat pretest. Sedangkan pada posttest, terdapat pin yang digunakan sebagai hak akses untuk melakukan tes. Dengan begitu, diharapkan aplikasi ini bisa lebih aman dan efisien dalam menghemat waktu dan biaya

Methanol from TES global observations: retrieval algorithm and seasonal and spatial variability

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K. E. Cady-Pereira

2012-09-01

Full Text Available We present a detailed description of the TES methanol (CH₃OH retrieval algorithm, along with initial global results showing the seasonal and spatial distribution of methanol in the lower troposphere. The full development of the TES methanol retrieval is described, including microwindow selection, error analysis, and the utilization of a priori and initial guess information provided by the GEOS-Chem chemical transport model. Retrieval simulations and a sensitivity analysis using the developed retrieval strategy show that TES: (i generally provides less than 1.0 piece of information, (ii is sensitive in the lower troposphere with peak sensitivity typically occurring between ~900–700 hPa (~1–3 km at a vertical resolution of ~5 km, (iii has a limit of detectability between 0.5 and 1.0 ppbv Representative Volume Mixing Ratio (RVMR depending on the atmospheric conditions, corresponding roughly to a profile with a maximum concentration of at least 1 to 2 ppbv, and (iv in a simulation environment has a mean bias of 0.16 ppbv with a standard deviation of 0.34 ppbv. Applying the newly derived TES retrieval globally and comparing the results with corresponding GEOS-Chem output, we find generally consistent large-scale patterns between the two. However, TES often reveals higher methanol concentrations than simulated in the Northern Hemisphere spring, summer and fall. In the Southern Hemisphere, the TES methanol observations indicate a model overestimate over the bulk of South America from December through July, and a model underestimate during the biomass burning season.

PENGEMBANGAN TES BERPIKIR KRITIS DENGAN PENDEKATAN ITEM RESPONSE THEORY

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Fajrianthi Fajrianthi

2016-06-01

Full Text Available Penelitian ini bertujuan untuk menghasilkan sebuah alat ukur (tes berpikir kritis yang valid dan reliabel untuk digunakan, baik dalam lingkup pendidikan maupun kerja di Indonesia. Tahapan penelitian dilakukan berdasarkan tahap pengembangan tes menurut Hambleton dan Jones (1993. Kisi-kisi dan pembuatan butir didasarkan pada konsep dalam tes Watson-Glaser Critical Thinking Appraisal (WGCTA. Pada WGCTA, berpikir kritis terdiri dari lima dimensi yaitu Inference, Recognition Assumption, Deduction, Interpretation dan Evaluation of arguments. Uji coba tes dilakukan pada 1.453 peserta tes seleksi karyawan di Surabaya, Gresik, Tuban, Bojonegoro, Rembang. Data dikotomi dianalisis dengan menggunakan model IRT dengan dua parameter yaitu daya beda dan tingkat kesulitan butir. Analisis dilakukan dengan menggunakan program statistik Mplus versi 6.11 Sebelum melakukan analisis dengan IRT, dilakukan pengujian asumsi yaitu uji unidimensionalitas, independensi lokal dan Item Characteristic Curve (ICC. Hasil analisis terhadap 68 butir menghasilkan 15 butir dengan daya beda yang cukup baik dan tingkat kesulitan butir yang berkisar antara –4 sampai dengan 2.448. Sedikitnya jumlah butir yang berkualitas baik disebabkan oleh kelemahan dalam menentukan subject matter experts di bidang berpikir kritis dan pemilihan metode skoring. Kata kunci: Pengembangan tes, berpikir kritis, item response theory   DEVELOPING CRITICAL THINKING TEST UTILISING ITEM RESPONSE THEORY Abstract The present study was aimed to develop a valid and reliable instrument in assesing critical thinking which can be implemented both in educational and work settings in Indonesia. Following the Hambleton and Jones’s (1993 procedures on test development, the study developed the instrument by employing the concept of critical thinking from Watson-Glaser Critical Thinking Appraisal (WGCTA. The study included five dimensions of critical thinking as adopted from the WGCTA: Inference, Recognition

STUDI SIMULASI MENGGUNAKAN FUZZY C-MEANS DALAM MENGKLASIFIKASI KONSTRUK TES

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Rukli Rukli

2013-01-01

Full Text Available Tulisan ini memperkenalkan metode fuzzy c-means dalam mengklasifikasi konstruk tes. Untuk memverifikasi sifat unidimensional suatu tes biasanya menggunakan analisis faktor sebagai bagian dari statistik parametrik dengan beberapa persyaratan yang ketat sedangkan metode fuzzy c-means termasuk metode heuristik yang tidak memerlukan persyaratan yang ketat. Studi simulasi penelitian ini menggunakan dua metode yakni analisis faktor menggunakan program SPSS dan fuzzy c-means menggunakan program Matlab. Data simulasi menggunakan tipe data dikotomi dan politomi yang dibangkitkan lewat prog-ram Microsoft Office Excel dengan desain 2 kategori, yakni: tiga butir soal dengan banyak peserta tes 10, dan 30 butir soal dengan banyak peserta tes 100. Hasil simulasi menunjukkan bahwa metode fuzzy c-means lebih memberikan gambaran pengelompokan secara deskriptif dan dinamis pada semua desain yang telah dibuat dalam memverifikasi unidimensional pada suatu tes. Kata kunci: fuzzy c-means, analisis faktor, unidimensional _____________________________________________________________ SIMULATION STUDY USING FUZZY C-MEANS FOR CLASIFYING TEST CONSTRUCTION Abstract This paper introduces the fuzzy c-means method for classifying the test constructs. To verify the unidimensional a test typically uses factor analysis as part of parametric statistics with some strict requirements, while fuzzy c-means methods including method heuristic that do not require strict require-ments. Simulation comparison between the method of factor analysis using SPSS program and fuzzy c-means methods using Matlab. Simulation data using data type dichotomy and politomus generated through Microsoft Office Excel programs each with a number of 3 items using the number of participants 10 tests, while the number of 30 test items using the number as many as 100 participants. The simulation results show that the fuzzy c-means method provides a more descriptive and dyna-mic grouping of all the designs that

MODEL TES FISIK PENCARIAN BAKAT OLAHRAGA BULUTANGKIS USIA DI BAWAH 11 TAHUN DI DIY

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Utvi Hinda Zhannisa

2015-04-01

Full Text Available Penelitian ini bertujuan untuk mengembangkan model tes fisik pencarian bakat cabang olahraga bulutangkis usia di bawah 11 tahun. Jenis penelitian ini adalah penelitian R and D (Research and Development. Dalam penelitian pengembangan ini, langkah-langkah yang harus ditempuh meliputi: (1 studi pendahuluan (studi pustaka dan studi lapangan, (2 perencanaan (melakukan analisis, (3 desain draft awal, (4 validasi draft (5 ujcoba produk kelompok kecil dan revisi, (6 uji coba kelompok besar dan revisi, (7 hasil akhir. Validitas menggunakan validitas isi, reliabilitas menggunakan test retest Conbrach’s Alpha dan Z skor untuk menyamakan satuan. Uji reliabilitas diperoleh hasil (a tes kelentukan (sit and reach 0,743; (b tes kecepatan (lari 30 m 0,844; (c tes power otot tungkai (vertical jump 0,663; (d tes kelincahan (lari 4 sudut 0,848; (e tes power otot lengan (lempar bola 0,943; (f tes reaksi (step test 0,987; (g tes daya tahan (lari 600 m 0,861. Produk yang dihasilkan berupa sebuah model tes dan norma tes untuk pencarian bakat.   A MODEL OF PHYSICAL TEST FOR TALENT SCOUTING IN BADMINTON SKILL UNDER 11 YEARS OLD IN DIY   Abstract The purpose of the research it to develop a model of physical test in looking for a sport talent in badminton skill under 11 years old. The type of this research is R and D (Research and Development in this development research, the steps are (1 introduction study (bibiliography study, and field study, (2 planning (doing analysis, (3introduction draft design, (4 validation draft, (5 trying out product in small group and revision, (6 trying out product in big group and revision, (7 final result. Validation used content validation, reliability used test retest and Z score to the same the unit.  The model of the test that has been arranged is suitable to be to look for talent in badminton skill. Reability test shows that: (a sit and reach 0.743; (b sprint 30 m 0.844; (c vertical jump 0.663; (d run 4 corner 0.848; (e throw ball

APLIKASI TES KEPRIBADIAN UNTUK PENEMPATAN KARYAWAN MENGGUNAKAN METODE MBTI (MYERS-BRIGGS TYPEINDICATORBERBASISWEB (STUDI KASUS: PT. WINATA PUTRA MANDIRI

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Fiftin Noviyanto

2012-04-01

Full Text Available Penempatan karyawan merupakan salah satu fungsi terpenting dalam Manajemen Sumber Daya Manusia. Penempatan karyawan yang tepat sesuai dengan harapan, bakat dan kepribadian karyawan, akan mampu meningkatkan motivasi, produltifitas dan kepuasan kerja. Salah satu tes penunjang penempatan karyawan adalah tes kepribadian. Tes kepribadian yang dilakukan menggunakan metode Myers-Briggs Type Indicator (MBTI. Pelaksanaan tes yang dilakukan manual dan terpisah antara kantor pusat dan kantor cabang membuat PT. Winata Putra Mandiri memerlukan waktu yang lama untuk melihat keseluruhan hasil tes seluruh karyawan. Tujuan penelitian ini membuat aplikasi tes kepribadian yang dapat diakses melalui internet adalah agar karyawan dapat melihat hasil tes kepribadian secara langsung dan cepat serta dapat mengintegrasikan hasil tes dari kantor pusat dan kantor cabang. Pengumpulan data dilakukan dengan berbagai metode antara lain : Studi kepustakaan, metode interview dan browsing. Model proses yang digunakan adalah waterfall yang terdiri dari analisa kebutuhan sistem, perancangan, implementasi dan pengujian. Pada perancangan sistem dimulai dari perancangan proses, perancangan tabel, perancangan menu dan perancangan interface. Pada tahap implementasi menggunakan PHPMyAdmin untuk membangun basisdata dan PHP untuk teknologi Serverside. Tahap terakhir adalah pengujian sistem yang dilakukan dengan Black Box Test dan Alpha Test. Hasil penelitian ini berupa aplikasi tes kepribadian menggunakan metode Myers- Briggs Type Indicator (MBTI berbasis web yang dapat membantu PT. Winata Putra Mandiri dalam mengintegrasikan hasil tes seluruh karyawan baik dari kantor pusat maupun kantor cabang

Performance-based service acquisition (PBSA) of TRIDENT strategic weapons systems (SWS) technical engineering support (TES) services

OpenAIRE

Arcidiacono, William J.

2003-01-01

CIVINS (Civilian Institutions) Thesis document Approved for public release ; distribution is unlimited The objective of this thesis is to determine whether the Strategic Systems Programs (SSP) should apply the concepts of Performance-Based Service Acquisition (PBSA) to Strategic Weapons Systems (SWS) Technical Engineering Support (TES) Services. This thesis provides a Department of Defense (DoD), Department of the Navy (DON), and SSP SWS program acquisition and PBSA history background, ...

Recent Patents on Nano-Enhanced Materials for Use in Thermal Energy Storage (TES).

Science.gov (United States)

Ferrer, Gerard; Barreneche, Camila; Solé, Aran; Juliá, José Enrique; Cabeza, Luisa F

2017-07-10

Thermal energy storage (TES) systems using phase change materials (PCM) have been lately studied and are presented as one of the key solutions for the implementation of renewable energies. These systems take advantage of the latent heat of phase change of PCM during their melting/ solidification processes to store or release heat depending on the needs and availability. Low thermal conductivity and latent heat are the main disadvantages of organic PCM, while corrosion, subcooling and thermal stability are the prime problems that inorganic PCM present. Nanotechnology can be used to overcome these drawbacks. Nano-enhanced PCM are obtained by the dispersion of nanoparticles in the base material and thermal properties such as thermal conductivity, viscosity and specific heat capacity, within others, can be enhanced. This paper presents a review of the patents regarding the obtaining of nano-enhanced materials for thermal energy storage (TES) in order to realize the development nanotechnologies have gained in the TES field. Patents regarding the synthesis methods to obtain nano-enhanced phase materials (NEPCM) and TES systems using NEPCM have been found and are presented in the paper. The few existing number of patents found is a clear indicator of the recent and thus low development nanotechnology has in the TES field so far. Nevertheless, the results obtained with the reviewed inventions already show the big potential that nanotechnology has in TES and denote a more than probable expansion of its use in the next years. Copyright© Bentham Science Publishers; For any queries, please email at epub@benthamscience.org.

A work procedure of utilising PCMs as thermal storage systems based on air-TES systems

International Nuclear Information System (INIS)

Iten, M.; Liu, S.

2014-01-01

Highlights: • A procedure to design effective thermal energy storage (TES) system. • A guidance for the selection of the working material (PCM) and the heat exchanger development. • Suggestions for heat transfer enhancement techniques for the air-TES system. • Mathematical, computational and experimental methods optimising the air-TES system. - Abstract: The paper seeks to offer a procedure to design an effective short term thermal energy storage (TES) system using phase change materials. The methodology focus on two main aspects: the selection of the working material and the heat exchanger development. The selection of the appropriate PCMs is one of the main keys for any TES therefore their classifications, properties, advantages and disadvantages need to be investigated. Due to the intensive researches using this kind of materials in the recent years, there are a range of commercial PCMs available and supplied by different companies. However, all types of PCM present their specific problems and therefore requirements are defined in order to select the most suitable PCMs. The other main key when designing TES is related to the heat exchanger formed by the PCM and the cold/hot heat sources. For this step, the choice of the appropriate container to encapsulate the PCM and the heat transfer enhancement techniques are analysed. Distinct methodologies such as experimental and numerical study methods and modelling software tools are presented to analyse the thermal energy performance of the system and achieve the optimal design of the TES system

Training Exit Survey (TES) Individual State and Tribe

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U.S. Department of Health & Human Services — The TES Individual dataset contains information at the individual-level about the persons who attend a GLS funded training event. This dataset includes variables...

TES ammonia retrieval strategy and global observations of the spatial and seasonal variability of ammonia

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M. W. Shephard

2011-10-01

Full Text Available Presently only limited sets of tropospheric ammonia (NH₃ measurements in the Earth's atmosphere have been reported from satellite and surface station measurements, despite the well-documented negative impact of NH₃ on the environment and human health. Presented here is a detailed description of the satellite retrieval strategy and analysis for the Tropospheric Emission Spectrometer (TES using simulations and measurements. These results show that: (i the level of detectability for a representative boundary layer TES NH₃ mixing ratio value is ~0.4 ppbv, which typically corresponds to a profile that contains a maximum level value of ~1 ppbv; (ii TES NH₃ retrievals generally provide at most one degree of freedom for signal (DOFS, with peak sensitivity between 700 and 900 mbar; (iii TES NH₃ retrievals show significant spatial and seasonal variability of NH₃ globally; (iv initial comparisons of TES observations with GEOS-CHEM estimates show TES values being higher overall. Important differences and similarities between modeled and observed seasonal and spatial trends are noted, with discrepancies indicating areas where the timing and magnitude of modeled NH₃ emissions from agricultural sources, and to lesser extent biomass burning sources, need further study.

Characterization of Ir/Au pixel TES

International Nuclear Information System (INIS)

Kunieda, Y.; Takahashi, H.; Zen, N.; Damayanthi, R.M.T.; Mori, F.; Fujita, K.; Nakazawa, M.; Fukuda, D.; Ohkubo, M.

2006-01-01

Signal shapes and noise characteristics of an asymmetrical ten-pixel Ir/Au-TES have been studied. The asymmetric design may be effective to realize an imaging spectrometer. Distinct two exponential decays observed for X-ray events are consistent with a two-step R-T curve. A theoretical thermal model for noise in multi-pixel devices reasonably explains the experimental data

Common Bias Readout for TES Array on Scanning Transmission Electron Microscope

Science.gov (United States)

Yamamoto, R.; Sakai, K.; Maehisa, K.; Nagayoshi, K.; Hayashi, T.; Muramatsu, H.; Nakashima, Y.; Mitsuda, K.; Yamasaki, N. Y.; Takei, Y.; Hidaka, M.; Nagasawa, S.; Maehata, K.; Hara, T.

2016-07-01

A transition edge sensor (TES) microcalorimeter array as an X-ray sensor for a scanning transmission electron microscope system is being developed. The technical challenge of this system is a high count rate of ˜ 5000 counts/second/array. We adopted a 64 pixel array with a parallel readout. Common SQUID bias, and common TES bias are planned to reduce the number of wires and the resources of a room temperature circuit. The reduction rate of wires is 44 % when a 64 pixel array is read out by a common bias of 8 channels. The possible degradation of the energy resolution has been investigated by simulations and experiments. The bias fluctuation effects of a series connection are less than those of a parallel connection. Simple calculations expect that the fluctuations of the common SQUID bias and common TES bias in a series connection are 10^{-7} and 10^{-3}, respectively. We constructed 8 SQUIDs which are connected to 8 TES outputs and a room temperature circuit for common bias readout and evaluated experimentally. Our simulation of crosstalk indicates that at an X-ray event rate of 500 cps/pixel, crosstalk will broaden a monochromatic line by about 0.01 %, or about 1.5 eV at 15 keV. Thus, our design goal of 10 eV energy resolution across the 0.5-15 keV band should be achievable.

Pengembangan Instrumen Tes Keterampilan Pemecahan Masalah pada Materi Getaran, Gelombang, dan Bunyi

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Syarif Rokhmat Hidayat

2017-12-01

Full Text Available Abstract Problem-solving is one of the fundamental skills in the 21st century. Students’ problem-solving skill is defined as students’ abilities to use their knowledge to solve the daily life problems. This study main goal is to develop a test instrument of junior high school students’ problem-solving skills on oscillation, wave, and sound concepts. The test items are arranged based on problem-solving skills indicator that proposed by Doctor and Heler (2009, there are problems visualization/description, physics approach, mathematic procedure, and logically conclusion. This study used 4D (define, design, develop, and disseminate model of research and development method. Fifteen test sets are designed based on five problem-solving skill indicators that grouped to each oscillation, wave, and sound sub concept. The result of instrument development shows all test items are valid through Pearson moment correlation coefficient test. Alpha Cronbach test the instrument shows the instrument reliability is 0.88 with the criteria of reliability is high. Based on expert judgment and data collections, the test instruments were well developed and could be used to measure students’ problem-solving skills on oscillation, wave, and sound wave concepts. Keywords: problem solving skills; problem solving skills instrument; oscillation, wave, and sound concept. Abstrak Pemecahan masalah adalah salah satu keterampilan yang penting di abad ke-21. Keterampilan pemecahan masalah siswa adalah kemampuan siswa menggunakan pengetahuan-pengetahuan yang dimilikinya untuk memecahkan masalah dalam kehidupan sehari-hari. Penelitian ini bertujuan mengembangkan instrumen tes untuk mengukur keterampilan pemecahan masalah pada siswa SMP terkait materi getaran, gelombang, dan bunyi. Instrumen tes disusun berdasarkan indikator keterampilan pemecahan masalah yang dikembangkan oleh Doctor dan Heler (2009 yaitu visualisasi/deskripsi masalah, pendekatan fisika, prosedur matematika

Fabrication of Low-Noise TES Arrays for the SAFARI Instrument on SPICA

Science.gov (United States)

Ridder, M. L.; Khosropanah, P.; Hijmering, R. A.; Suzuki, T.; Bruijn, M. P.; Hoevers, H. F. C.; Gao, J. R.; Zuiddam, M. R.

2016-07-01

Ultra-low-noise transition edge sensors (TES) with noise equivalent power lower than 2 × 10^{-19} W/Hz^{1/2 } have been fabricated by SRON, which meet the sensitivity requirements for the far-infrared SAFARI instrument on space infrared telescope for cosmology and astrophysics. Our TES detector is based on a titanium/gold (Ti/Au) thermistor on a silicon nitride (SiN) island. The island is thermally linked with SiN legs to a silicon support structure at the bath temperature. The SiN legs are very thin (250 nm), narrow (500 nm), and long (above 300 {\\upmu } m); these dimensions are needed in leg-isolated bolometers to achieve the required level of sensitivity. In this paper, we describe the latest fabrication process for our TES bolometers with improved sensitivity.

An Optimisation Study on Integrating and Incentivising Thermal Energy Storage (TES in a Dwelling Energy System

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Gbemi Oluleye

2018-04-01

Full Text Available In spite of the benefits from thermal energy storage (TES integration in dwellings, the penetration rate in Europe is 5%. Effective fiscal policies are necessary to accelerate deployment. However, there is currently no direct support for TES in buildings compared to support for electricity storage. This could be due to lack of evidence to support incentivisation. In this study, a novel systematic framework is developed to provide a case in support of TES incentivisation. The model determines the costs, CO2 emissions, dispatch strategy and sizes of technologies, and TES for a domestic user under policy neutral and policy intensive scenarios. The model is applied to different building types in the UK. The model is applied to a case study for a detached dwelling in the UK (floor area of 122 m2, where heat demand is satisfied by a boiler and electricity imported from the grid. Results show that under a policy neutral scenario, integrating a micro-Combined Heat and Power (CHP reduces the primary energy demand by 11%, CO2 emissions by 21%, but with a 16 year payback. Additional benefits from TES integration can pay for the investment within the first 9 years, reducing to 3.5–6 years when the CO2 levy is accounted for. Under a policy intensive scenario (for example considering the Feed in Tariff (FIT, primary energy demand and CO2 emissions reduce by 17 and 33% respectively with a 5 year payback. In this case, the additional benefits for TES integration can pay for the investment in TES within the first 2 years. The framework developed is a useful tool is determining the role TES in decarbonising domestic energy systems.

A Public Presentations of Gendered Bodies: A Look at Gay and Lesbian Online Dating Profiles

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Andrew Latinsky

2012-10-01

Full Text Available This paper examines how stereotypes and media presentations related to gender norms influence public presentations of gay men and lesbian women. Using online profiles from the online dating website Match.com, this paper examines the body types daters use to describe themselves, their ideal date, and if the poster has a photograph of themselves on their profile. These profiles are used as a method of observing public presentations that are in a unique situation to be tailored towards notions of publically displayed social desirability. Findings indicate that gay men present their online bodies as stereotypically masculine and athletic, while lesbian women are willing to display a slightly broader range of body types. In addition, regardless of gender, both gay men and lesbian women present their ideal dates as stereotypically attractive, with gay men having a particular affinity for dating athletic men. Regression analysis suggests that intersectional variables such as race and age influence a person’s willingness to display a profile picture in the public arena. Overall, this study concludes that heteronormative standards of masculinity combined with structural influences from both the media and peer groups likely have an impact on gay men’s ideal gendered body, while the comparative exclusion of lesbian women from these media influences allow other experiences of gender norms slightly more freedom.

Seasonal and spatial changes in trace gases over megacities from Aura TES observations: two case studies

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K. E. Cady-Pereira

2017-08-01

Full Text Available The Aura Tropospheric Emission Spectrometer (TES is collecting closely spaced observations over 19 megacities. The objective is to obtain measurements that will lead to better understanding of the processes affecting air quality in and around these cities, and to better estimates of the seasonal and interannual variability. We explore the TES measurements of ozone, ammonia, methanol and formic acid collected around the Mexico City metropolitan area (MCMA and in the vicinity of Lagos (Nigeria. The TES data exhibit seasonal signals that are correlated with Atmospheric Infrared Sounder (AIRS CO and Moderate Resolution Imaging Spectroradiometer (MODIS aerosol optical depth (AOD, with in situ measurements in the MCMA and with Goddard Earth Observing System (GEOS-Chem model output in the Lagos area. TES was able to detect an extreme pollution event in the MCMA on 9 April 2013, which is also evident in the in situ data. TES data also show that biomass burning has a greater impact south of the city than in the caldera where Mexico City is located. TES measured enhanced values of the four species over the Gulf of Guinea south of Lagos. Since it observes many cities from the same platform with the same instrument and applies the same retrieval algorithms, TES data provide a very useful tool for easily comparing air quality measures of two or more cities. We compare the data from the MCMA and Lagos, and show that, while the MCMA has occasional extreme pollution events, Lagos consistently has higher levels of these trace gases.

Digital Signal Processing Based on a Clustering Algorithm for Ir/Au TES Microcalorimeter

Science.gov (United States)

Zen, N.; Kunieda, Y.; Takahashi, H.; Hiramoto, K.; Nakazawa, M.; Fukuda, D.; Ukibe, M.; Ohkubo, M.

2006-02-01

In recent years, cryogenic microcalorimeters using their superconducting transition edge have been under development for possible application to the research for astronomical X-ray observations. To improve the energy resolution of superconducting transition edge sensors (TES), several correction methods have been developed. Among them, a clustering method based on digital signal processing has recently been proposed. In this paper, we applied the clustering method to Ir/Au bilayer TES. This method resulted in almost a 10% improvement in the energy resolution. Conversely, from the point of view of imaging X-ray spectroscopy, we applied the clustering method to pixellated Ir/Au-TES devices. We will thus show how a clustering method which sorts signals by their shapes is also useful for position identification

Searching for an Improved Spectral Match to TES and IRIS Sinus Meridiani Spectra: Coatings and Cemented Materials

Science.gov (United States)

Kirkland, L. E.; Herr, K. C.; Adams, P. M.

2001-05-01

A region on Mars within Sinus Meridiani has been interpreted as a surface partially covered by coarse-grained (gray) hematite, using spectra measured by the 1996 Global Surveyor Thermal Emission Spectrometer (TES) [Lane et al., 1999; Christensen et al., 2000]. The band strengths recorded by TES of this region are consistent with either coarse-grained hematite, or cemented poorly crystalline or cemented fine-grained hematite. The band strengths are inconsistent with unconsolidated, poorly crystalline or fine-grained hematite, including nanophase hematite dust [Christensen et al., 2000]. Currently the gray hematite interpretation is based on bands centered near 22 and 33 microns. TES also records a band centered near 18 microns that was used in early hematite interpretations [Lane et al., 1999]. However, it was noted [Kirkland et al., 1999a] that the 18 micron band is too narrow in both TES and the 1971 Mariner Mars IRIS spectra to be a good match to typical spectra of well-crystalline hematite [e.g. Salisbury et al., 1991]. The 18 micron band is near the very strong 15 micron atmospheric CO2 band, but if anything the nearby CO2 band should cause the 18 micron band to appear wider, not narrower. In addition, the higher spectral resolution of IRIS allows improved separation of the bands [Kirkland et al., 1999b]. More recent publications no longer show the TES 18 micron band [e.g. Lane et al., 2000; Christensen et al., 2000], which temporarily resolved the issue. However, we feel it is important to understand why TES and IRIS spectra exhibit an 18 micron band that is too narrow to match typical spectra of coarse-grained hematite. Smooth-surfaced cemented (e.g. ferricrete) or coated materials (e.g. desert varnish) have spectral contrast that is consistent with the observed IRIS and TES band contrast. On Mars, one possible source for cemented material or coatings would be the nanophase hematite dust. Cemented materials may occur in bulk (e.g. duricrust or ferricrete), or

Examining publication bias—a simulation-based evaluation of statistical tests on publication bias

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Andreas Schneck

2017-11-01

Full Text Available Background Publication bias is a form of scientific misconduct. It threatens the validity of research results and the credibility of science. Although several tests on publication bias exist, no in-depth evaluations are available that examine which test performs best for different research settings. Methods Four tests on publication bias, Egger’s test (FAT, p-uniform, the test of excess significance (TES, as well as the caliper test, were evaluated in a Monte Carlo simulation. Two different types of publication bias and its degree (0%, 50%, 100% were simulated. The type of publication bias was defined either as file-drawer, meaning the repeated analysis of new datasets, or p-hacking, meaning the inclusion of covariates in order to obtain a significant result. In addition, the underlying effect (β = 0, 0.5, 1, 1.5, effect heterogeneity, the number of observations in the simulated primary studies (N = 100, 500, and the number of observations for the publication bias tests (K = 100, 1,000 were varied. Results All tests evaluated were able to identify publication bias both in the file-drawer and p-hacking condition. The false positive rates were, with the exception of the 15%- and 20%-caliper test, unbiased. The FAT had the largest statistical power in the file-drawer conditions, whereas under p-hacking the TES was, except under effect heterogeneity, slightly better. The CTs were, however, inferior to the other tests under effect homogeneity and had a decent statistical power only in conditions with 1,000 primary studies. Discussion The FAT is recommended as a test for publication bias in standard meta-analyses with no or only small effect heterogeneity. If two-sided publication bias is suspected as well as under p-hacking the TES is the first alternative to the FAT. The 5%-caliper test is recommended under conditions of effect heterogeneity and a large number of primary studies, which may be found if publication bias is examined in a

Production and evaluation of the recombinant antigen TES-30 of Toxocara canis for the immunodiagnosis of toxocariasis.

Science.gov (United States)

Olave, Ana M; Mesa, Jairo A; Botero, Jorge H; Patiño, Edwin B; García, Gisela M; Alzate, Juan F

2016-03-03

Toxocara canis is a pathogenic nematode of canines which can be accidentally transmitted to humans. Although serology is the most important diagnostic tool for this zoonosis, diagnostic kits use crude excretion/secretion antigens, most of them being glycoproteins which are not species-specific and may cross-react with antibodies generated against other parasites.  To produce the rTES-30 recombinant antigen of Toxocara canis and evaluate it in the immunodiagnosis of toxocariasis.  The gene that codes for TES-30 was cloned in the expression vector pET28a (+) using single-stranded oligonucleotides united by PCR. The protein rTES-30 was purified by Ni2+ affinity chromotography. Seroreactivity of rTES-30 was evaluated by immunoblot. Given that there is no gold standard test, the behaviour of the antigen was compared with the method that is routinely used to immunodiagnose toxocariasis, i.e., the conventional ELISA technique using excretion/secretion antigens.  The rTES-30 was produced from an Escherichia coli LB culture which yielded 2.25 mg/L of the antigen with a purity of 95%. The results obtained showed 73% (46/63) concordance of reactivity between the rTES-30 immunoblot and the conventional ELISA, and 100% concordance with the nonreactive sera (21). Nineteen of the 21 sera positive for other parasitoses reacted with ELISA, while only seven of these were positive with the rTES-30 immunoblot. Concordance between the ELISA and the immunoblot was moderate (kappa coefficient: 0.575; 95% CI: 0.41- 0.74).  The data presented show the potential of the rTES-30 inmunoblot for confirmation of possible ELISA positives, not only in epidemiological studies, but also as a candidate for the development of diagnostic tests for ocular toxocariasis in Colombia.

High-temperature thermocline TES combining sensible and latent heat - CFD modeling and experimental validation

Science.gov (United States)

Zavattoni, Simone A.; Geissbühler, Lukas; Barbato, Maurizio C.; Zanganeh, Giw; Haselbacher, Andreas; Steinfeld, Aldo

2017-06-01

The concept of combined sensible/latent heat thermal energy storage (TES) has been exploited to mitigate an intrinsic thermocline TES systems drawback of heat transfer fluid outflow temperature reduction during discharging. In this study, the combined sensible/latent TES prototype under investigation is constituted by a packed bed of rocks and a small amount of encapsulated phase change material (AlSi12) as sensible heat and latent heat sections respectively. The thermo-fluid dynamics behavior of the combined TES prototype was analyzed by means of a computational fluid dynamics approach. Due to the small value of the characteristic vessel-to-particles diameter ratio, the effect of radial void-fraction variation, also known as channeling, was accounted for. Both the sensible and the latent heat sections of the storage were modeled as porous media under the assumption of local thermal non-equilibrium (LTNE). The commercial code ANSYS Fluent 15.0 was used to solve the model's constitutive conservation and transport equations obtaining a fairly good agreement with reference experimental measurements.

Production of Toxocara cati TES-120 Recombinant Antigen and Comparison with its T. canis Homolog for Serodiagnosis of Toxocariasis

Science.gov (United States)

Zahabiun, Farzaneh; Sadjjadi, Seyed Mahmoud; Yunus, Muhammad Hafiznur; Rahumatullah, Anizah; Moghaddam, Mohammad Hosein Falaki; Saidin, Syazwan; Noordin, Rahmah

2015-01-01

Toxocariasis is a cosmopolitan zoonotic disease caused by the infective larvae of Toxocara canis and T. cati. Diagnosis in humans is usually based on clinical symptoms and serology. Immunoglobulin G (IgG)-enzyme-linked immunosorbent assay kits using T. canis excretory–secretory (TES) larval antigens are commonly used for serodiagnosis. Differences in the antigens of the two Toxocara species may influence the diagnostic sensitivity of the test. In this study, T. cati recombinant TES-120 (rTES-120) was cloned, expressed, and compared with its T. canis homolog in an IgG4-western blot. The diagnostic sensitivity and specificity of T. cati rTES-120 were 70% (33/47) and 100% (39/39), respectively. T. canis rTES-120 showed 57.4% sensitivity and 94.4% specificity. When the results of assays using rTES-120 of both species were considered, the diagnostic sensitivity was 76%. This study shows that using antigens from both Toxocara species may improve the serodiagnosis of toxocariasis. PMID:26033026

PENILAIAN PEMAHAMAN REPRESENTASI GRAFIK MATERI OPTIKA GEOMETRI MENGGUNAKAN TES DIAGNOSTIK

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Wawan Bunawan

2015-06-01

Full Text Available Abstrak: Tujuan penelitian adalah mengembangkan dan menerapkan tes diagnostik pilihan ganda tiga tingkat untuk mengukur pemahaman representasi grafik mahasiswa terkait esensi inkuiri sains dan materi optika geometri. Penelitian menggunakan metode campuran melibatkan 83 mahasiswa calon guru fisika di satu LPTK Sumatera Utara. Instrumen tes diagnostik terlebih dahulu didesain kemudian disempurnakan selama proses, direvisi, dan digunakan untuk mendeteksi dan menilai pemahaman representasi grafik mahasiswa calon guru fisika. Instrumen tes telah dikembangkan untuk dapat mendiagnosis dan memperbaiki kesalahan-kesalahan yang dilakukan calon guru fisika terkait dengan keterampilan mengonstruk grafik, menemukan kesulitan-kesulitan dalam membaca dan menginterpretasi grafik. Analisis data dilakukan secara kualitatif dan kuantitatif. Hasil studi menunjukkan pembacaan grafik dan keterampilan menginterpretasi grafik calon guru fisika masih belum memadai dan juga kemahiran dalam menganalisis grafik bergantung pada jenis grafik dan level atau tipe pertanyaan yang dikembangkan. Kata Kunci: representasi grafik, optik geometri, diagnostik tes ASSESSING OF UNDERSTANDING GRAPHICAL REPRESENTATION CONTENT GEOMETRICAL OPTIC USING DIAGNOSTIC TEST Abstract: The purpose of this study is to develop and apply three tier multiple choice diagnostic test to measure student’s understanding of graphical representation about essential features of inquiry and content geometrical optic. The study was conducted using mixed methods and carried out with 83 prephysics teachers at a University of Teachers Education in North Sumatera. The diagnostic instrument was designed and then progressively refined, revised, and implemented to detect and assess student’s understanding of graphical representation. Test instrument was developed to diagnose and correct the mistakes made by pre-service physics teachers about construction graphic skills, difficulties in the reading and interpretation

Collection and dissemination of TES system information for the paper and pulp industry

Science.gov (United States)

Dietrich, M. W.; Edde, H.

1980-01-01

A survey of U.S. and international paper and pulp mills using thermal energy storage (TES) systems as a part of their production processes was conducted to obtain sufficient operating data to conduct a benefits analysis encompassing: (1) an energy conservation assessment, (2) an economic benefits analysis, and (3) an environmental impact assessment. An information dissemination plan was then proposed to effectively present the benefits of TES to the U.S. paper and pulp industry.

A joint data record of tropospheric ozone from Aura-TES and MetOp-IASI

Directory of Open Access Journals (Sweden)

H. Oetjen

2016-08-01

Full Text Available The Tropospheric Emission Spectrometer (TES on Aura and Infrared Atmospheric Sounding Interferometer (IASI on MetOp-A together provide a time series of 10 years of free-tropospheric ozone with an overlap of 3 years. We characterise the differences between TES and IASI ozone measurements and find that IASI's coarser vertical sensitivity leads to a small (< 5 ppb low bias relative to TES for the free troposphere. The TES-IASI differences are not dependent on season or any other factor and hence the measurements from the two instruments can be merged, after correcting for the offset, in order to study decadal-scale changes in tropospheric ozone. We calculate time series of regional monthly mean ozone in the free troposphere over eastern Asia, the western United States (US, and Europe, carefully accounting for differences in spatial sampling between the instruments. We show that free-tropospheric ozone over Europe and the western US has remained relatively constant over the past decade but that, contrary to expectations, ozone over Asia in recent years does not continue the rapid rate of increase observed from 2004 to 2010.

Methane from the Tropospheric Emission Spectrometer (TES)

Science.gov (United States)

Payne, Vivienne; Worden, John; Kulawik, Susan; Frankenberg, Christian; Bowman, Kevin; Wecht, Kevin

2012-01-01

TES V5 CH4 captures latitudinal gradients, regional variability and interannual variation in the free troposphere. V5 joint retrievals offer improved sensitivity to lower troposphere. Time series extends from 2004 to present. V5 reprocessing in progress. Upper tropospheric bias. Mitigated by N2O correction. Appears largely spatially uniform, so can be corrected. How to relate free-tropospheric values to surface emissions.

TES/Aura L2 Instantaneous Radiative Kernel Nadir V007

Data.gov (United States)

National Aeronautics and Space Administration — Using TES radiances, Jacobians and ozone profiles with hemispherical integration, it is possible to compute the TOA (top-of-atmosphere) flux from the infrared ozone...

Incidência e etiologia de uveítes em Curitiba Incidence and etiology of uveitis in Curitiba

Directory of Open Access Journals (Sweden)

Marcelo Luis Gehlen

1999-10-01

Full Text Available Objetivo: Determinar a incidência e a etiologia dos casos de uveítes em Curitiba-PR. Métodos: Foram estudados 68 casos de uveítes em Curitiba, PR, atendidos no ambulatório de oftalmologia no período de janeiro a abril de 1998 procurando estabelecer o diagnóstico a partir de ampla investigação clínica e laboratorial. Resultados: Em nosso estudo, constatamos que a uveíte posterior foi a mais encontrada (49%, seguindo-se a panuveíte (29% e, com menor freqüência, a uveíte anterior (22%. A etiologia mais freqüente para as uveítes posteriores foi a toxoplasmose, responsável por 88% dos casos. Entre as panuveítes, novamente a toxoplasmose prevaleceu, com 85% e, dentro das uveítes anteriores, a principal causa foi a espondilite anquilosante com 20%. Conclusão: Em Curitiba, há um predomínio de uveítes posteriores e panuveítes, sendo a causa mais comum a toxoplasmose. No entanto, enfatiza-se que existem outras causas importantes de uveítes que devem ser lembradas pelo oftalmologista na investigação clínica.Purpose: To study the incidence and etiology of uveitis in Curitiba, PR, Brazil. Methods: Sixty-eight cases of uveitis were studied in Curitiba, PR between January and April, 1998. Clinical and laboratorial research was performed in order to establish the diagnosis. Results: In this study, we found that posterior uveitis was the most frequent (49%, followed by panuveitis (29%, and, less frequently, anterior uveitis (22%. The major etiology of posterior uveitis was toxoplasmosis, responsible for 88% of the cases; among panuveitis, toxoplasmosis also predomi-nated, representing 85% and, the main cause of anterior uveitis was ankylosing spondilytis with 20%. Conclusions: In Curitiba, posterior uveitis and panuveitis predominate, and the most frequent etiology is toxoplas-mosis. However, its important to emphasize that there are other important causes of uveitis which should be remem-bered by the ophthalmologist during the

Teen Dating Violence

Science.gov (United States)

... Room Social Media Publications Injury Center Teen Dating Violence Recommend on Facebook Tweet Share Compartir On This ... serious forms of violence. What is teen dating violence? Teen Dating Violence [550 KB, 2 Pages, 508] ...

Characterization, 1064 nm photon signals and background events of a tungsten TES detector for the ALPS experiment

International Nuclear Information System (INIS)

Dreyling-Eschweiler, J.; Doebrich, B.; Januschek, F.; Lindner, A.; Bastidon, N.; Horns, D.

2015-02-01

The high efficiency, low-background, and single-photon detection with transition-edge sensors (TES) is making this type of detector attractive in widely different types of application. In this paper, we present first characterizations of a TES to be used in the Any Light Particle Search (ALPS) experiment searching for new fundamental ultra-light particles. Firstly, we describe the setup and the main components of the ALPS TES detector (TES, millikelvin-cryostat and SQUID read-out) and their performances. Secondly, we explain a dedicated analysis method for single-photon spectroscopy and rejection of non-photon background. Finally, we report on results from extensive background measurements. Considering an event-selection, optimized for a wavelength of 1064 nm, we achieved a background suppression of ∝10 -3 with a ∝ 50 % efficiency for photons passing the selection. The resulting overall efficiency was 23 % with a dark count rate of 8.6.10 -3 s -1 . We observed that pile-up events of thermal photons are the main background component.

[Jānis Keruss, Ineta Lipša, Inese Runce, Kaspars Zellis. Latvijas Universitātes Vēstures un filozofijas fakultātes vēsture padomju laikā: personības, struktūras, idejas (1944-1991)] / Kristine Wohlfart

Index Scriptorium Estoniae

Wohlfart, Kristine, 1968-

2012-01-01

Arvustus: Keruss, Jānis, Lipša, Ineta, Runce, Inese, Zellis, Kaspars. Latvijas Universitātes Vēstures un filozofijas fakultātes vēsture padomju laikā: personības, struktūras, idejas (1944-1991). (Riga. LU Akadēmiskais apgāds, 2010)

CK2(beta)tes gene encodes a testis-specific isoform of the regulatory subunit of casein kinase 2 in Drosophila melanogaster

DEFF Research Database (Denmark)

Kalmykova, Alla I; Shevelyov, Yuri Y; Polesskaya, Oksana O

2002-01-01

An earlier described CK2(beta)tes gene of Drosophila melanogaster is shown to encode a male germline specific isoform of regulatory beta subunit of casein kinase 2. Western-analysis using anti-CK2(beta)tes Ig revealed CK2(beta)tes protein in Drosophila testes extract. Expression of a CK2(beta...... and coimmunoprecipitation analysis of protein extract from Drosophila testes, we demonstrated an association between CK2(beta)tes and CK2alpha. Northern-analysis has shown that another regulatory (beta') subunit found recently in D. melanogaster genome is also testis-specific. Thus, we describe the first example of two...

Study of the Dependency on Magnetic Field and Bias Voltage of an AC-Biased TES Microcalorimeter

Science.gov (United States)

Gottardi, L.; Bruijn, M.; denHartog, R.; Hoevers, H.; deKorte, P.; vanderKuur, J.; Linderman, M.; Adams, J.; Bailey, C.; Bandler, S.;

Computational Analysis on Performance of Thermal Energy Storage (TES) Diffuser

Science.gov (United States)

Adib, M. A. H. M.; Adnan, F.; Ismail, A. R.; Kardigama, K.; Salaam, H. A.; Ahmad, Z.; Johari, N. H.; Anuar, Z.; Azmi, N. S. N.

2012-09-01

Application of thermal energy storage (TES) system reduces cost and energy consumption. The performance of the overall operation is affected by diffuser design. In this study, computational analysis is used to determine the thermocline thickness. Three dimensional simulations with different tank height-to-diameter ratio (HD), diffuser opening and the effect of difference number of diffuser holes are investigated. Medium HD tanks simulations with double ring octagonal diffuser show good thermocline behavior and clear distinction between warm and cold water. The result show, the best performance of thermocline thickness during 50% time charging occur in medium tank with height-to-diameter ratio of 4.0 and double ring octagonal diffuser with 48 holes (9mm opening ~ 60%) acceptable compared to diffuser with 6mm ~ 40% and 12mm ~ 80% opening. The conclusion is computational analysis method are very useful in the study on performance of thermal energy storage (TES).

PENGEMBANGAN SISTEM TES DIAGNOSTIK KESULITAN BELAJAR BERBASIS WEB MAHASISWA JURUSAN TEKNIK MESIN

Directory of Open Access Journals (Sweden)

Soffan Nurhaji

2016-07-01

Full Text Available Penelitian ini bertujuan untuk: (a Merancang sistem tes diagnostik kesulitan belajar mahasiswa jurusan pendidikan teknik mesin, dan, dan (b mengembangkan sistem tes diagnostik kesulitan belajar Mahasiswa. Penelitian ini menggunakan pendekatan Research and Development dengan perangkat lunak. Model pengembangan yang digunakan dalam penelitian ini adalah model modifikasi linear sequential yang disebut juga sebagai classic life cycle atau model waterfall yang memiliki 4 langkah. Analisis kebutuhan sistem dan perancangan sistem telah dilakukan pada tahun kedua. Implementasi dan validasi program dilakukan pada tahun keempat. Validasi sistem dilakukan dengan angket yang diberikan kepada 6 dosen yang mengampu di jurusan teknik pendidikan mesin untuk melihat aspek kinerja, rancangan, dan aksesbilitas sistem. Analisis data validasi dilakukan dengan statistik deskriptif. Langkah terakhir, evaluasi pemanfaatan sistem, akan dilaksanakan pada tahun kelima. Sistem tes diagnostik kesulitan belajar akan dikembangkan dengan arsitektur web client-server. Sistem ini memiliki tiga kelompok pengguna, yaitu admin, dosen, dan mahasiswa. Hasil analisis aspek kinerja, rancangan, dan adaptabilitas sistem secara keseluruhan akan dianalisis dari angket yang mempunyai rata-rata penilaian yang diperoleh dari skala 1–4, sehingga termasuk kategori sangat baik. Karena itu sistem yang telah dikembangkan dapat digunakan pada penelitian lebih lanjut pada tahun keenam, yaitu evaluasi pemanfaatan sistem. 

Antenna-coupled TES bolometers for the SPIDER experiment

Energy Technology Data Exchange (ETDEWEB)

Kuo, C.L. [Jet Propulsion Laboratory, 4800 Oak Grove Drive, Pasadena, CA 91109 (United States)]|[California Institute of Technology, 1200 E California Boulevard, Pasadena, CA 91125 (United States)]. E-mail: clkuo@astro.caltech.edu; Ade, P. [University of Wales, Cardiff, 5 The Parade, Cardiff, CF24 3YB, Wales (United Kingdom); Bock, J.J. [Jet Propulsion Laboratory, 4800 Oak Grove Drive, Pasadena, CA 91109 (United States)]|[California Institute of Technology, 1200 E California Boulevard, Pasadena, CA 91125 (United States); Day, P. [Jet Propulsion Laboratory, 4800 Oak Grove Drive, Pasadena, CA 91109 (United States)]|[California Institute of Technology, 1200 E California Boulevard, Pasadena, CA 91125 (United States); Goldin, A.; Golwala, S.; Hristov, V.; Jones, W.C.; Lange, A.E.; Rossinot, P.; Vayonakis, A.; Wang, G. [California Institute of Technology, 1200 E California Boulevard, Pasadena, CA 91125 (United States); Halpern, M. [University of British Columbia, 2329 West Mall, Vancouver, BC, V6T 1Z4 (Canada); Hilton, G.; Irwin, K. [National Institute of Standards and Technology, 325 Broadway, Boulder, CO (United States); Holmes, W.; Kenyon, M.; LeDuc, H.G. [Jet Propulsion Laboratory, 4800 Oak Grove Drive, Pasadena, CA 91109 (United States); MacTavish, C. [University of Toronto, 60 St. George Street, Toronto, ON, M5S 1A7 (Canada); Montroy, T.; Ruhl, J. [Case Western Reserve University, 10900 Euclid Avenue, Cleveland, OH 44106 (United States); Netterfield, C.B. [University of Toronto, 60 St. George Street, Toronto, ON, M5S 1A7 (Canada); Yun, M. [Jet Propulsion Laboratory, 4800 Oak Grove Drive, Pasadena, CA 91109 (United States)]|[University of Pittsburgh, 348 Benedum Engineering Hall, Pittsburgh, PA 15261 (United States); Zmuidzinas, J. [Jet Propulsion Laboratory, 4800 Oak Grove Drive, Pasadena, CA 91109 (United States)]|[California Institute of Technology, 1200 E California Boulevard, Pasadena, CA 91125 (United States)

2006-04-15

SPIDER is a proposed balloon-borne experiment designed to search for the imprints of gravity waves on the polarization of the cosmic microwave background radiation. The required wide frequency coverage, large number of sensitive detectors, and the stringent power constraints on a balloon are made possible by antenna-coupled TES bolometers. Several prototype devices have been fabricated and optically characterized. Their spectral and angular responses agree well with the theoretical expectations.

Kamppailu yleistelevisiosta. TES-TV:n, Mainos-TV:n ja Tesvision merkitykset suomalaisessa televisiokulttuurissa 1956-1964

OpenAIRE

Keinonen, Heidi

2011-01-01

Suomalaista televisiohistoriaa tarkastellaan usein Yleisradion historiana. Säännöllinen televisiotoiminta käynnistyi kuitenkin kaupallisesti rahoitetun televisioaseman lähetyksillä, ja vuoteen 1964 mennessä Suomessa ehti toimia kolme kaupallista televisioyhtiötä. TES-TV jatkoi pääkaupunkiseudulla vuonna 1956 säännölliset lähetykset aloittaneen Televisiokerhon toimintaa, Mainos-TV aloitti omat lähetyksensä Yleisradion televisiokanavalla seuraavana vuonna ja vuodesta 1960 lähtien TES-kanavan oh...

TES/Aura L3 H2O Monthly Gridded V004

Data.gov (United States)

National Aeronautics and Space Administration — The TES Aura L3 H2O data consist of daily atmospheric temperature and VMR for the atmospheric species. Data are provided at 2 degree latitude X 4 degree longitude...

Computational Analysis on Performance of Thermal Energy Storage (TES) Diffuser

International Nuclear Information System (INIS)

Adib, M A H M; Ismail, A R; Kardigama, K; Salaam, H A; Ahmad, Z; Johari, N H; Anuar, Z; Azmi, N S N; Adnan, F

2012-01-01

Application of thermal energy storage (TES) system reduces cost and energy consumption. The performance of the overall operation is affected by diffuser design. In this study, computational analysis is used to determine the thermocline thickness. Three dimensional simulations with different tank height-to-diameter ratio (HD), diffuser opening and the effect of difference number of diffuser holes are investigated. Medium HD tanks simulations with double ring octagonal diffuser show good thermocline behavior and clear distinction between warm and cold water. The result show, the best performance of thermocline thickness during 50% time charging occur in medium tank with height-to-diameter ratio of 4.0 and double ring octagonal diffuser with 48 holes (9mm opening ∼ 60%) acceptable compared to diffuser with 6mm ∼ 40% and 12mm ∼ 80% opening. The conclusion is computational analysis method are very useful in the study on performance of thermal energy storage (TES).

A short biography of Hubert Ludwig and a note on the publication dates of his monograph Die Seewalzen (1889-1892).

Science.gov (United States)

Reich, Mike

2015-12-03

The dates of publication of Hubert Ludwig's (1852-1913) comprehensive monograph Die Seewalzen [= Sea cucumbers] are reviewed. The precise publication dates of his volume, originally published in 16 fascicles and 8 parts/issues, delivered between 1889 and 1892, has been re-examined. Additionally, a short biographical note on Hubert Ludwig's life and a discussion of all new taxa introduced by him in his monograph is given.

Université de Genève - Planètes extra-solaires: des propriétés inattendues des planètes géantes à la chasse à une nouvelle Terre - French version only

CERN Multimedia

2006-01-01

Université de Genève Ecole de physique 24 quai Ernest Ansermet1211 Genève 4Tél : +41 22 379 6383 (secrétariat)Tél : +41 22 379 6256 (réception) Fax: +41 22 379 6922 Lundi 30 octobre 2006 COLLOQUE 17h00 - Auditoire Stueckelberg Planètes extra-solaires: des propriétés inattendues des planètes géantes à la chasse à une nouvelle Terre Dr S. Udry / Observatoire de Genève, Sauverny Depuis la détection de la première 'exoplanète' en orbite autour d'une étoile semblable à notre soleil, il y a un peu plus de 10 ans, près de 200 candidats planétaires ont été mis à jour, la plupart par spectroscopie Doppler. Les propriétés variées et inattendues de ces systèmes seront discutées ainsi que les contraintes qu'elles fournissent pour les modèles de formation planétaire. Si les planètes découvertes sont pour la plupart des géantes gazeuses ressemblant à Jupiter, un nouveau pas a été récemment franchi avec la détection de planètes plus légères (10-20 masses terrestres) et probabl...

Development of TES microcalorimeters with Sn absorber for hard x-ray detection

International Nuclear Information System (INIS)

Hatakeyama, Shuichi; Ohno, Masashi; Damayanthi, R.M. Thushara; Takahashi, Hiroyuki

2013-01-01

Superconducting transition edge sensors (TES) are used for high-resolution X-ray spectroscopy. In this study, we have designed a new TES detector using a superconducting tin (Sn) absorber to detect high energy photons over 100 keV. The Sn absorber is coupled to an Ir/Au super-conducting film which is deposited on an ultra-thin SiN membrane (500 nm thick) with a small amount of epoxy post (Stycast 2850FT) by handling with a flip-chip bonding machine. The 241 Am photoelectron peak, the Sn K α and K β X-ray escape peaks are clearly observed. The measured energy resolution is 320 eV FWHM at 59.5 keV and is better than that of HPGe detector. (author)

Performance of an X-ray single pixel TES microcalorimeter under DC and AC biasing

International Nuclear Information System (INIS)

Gottardi, L.; Kuur, J. van der; Korte, P. A. J. de; Den Hartog, R.; Dirks, B.; Popescu, M.; Hoevers, H. F. C.; Bruijn, M.; Borderias, M. Parra; Takei, Y.

2009-01-01

We are developing Frequency Domain Multiplexing (FDM) for the read-out of TES imaging microcalorimeter arrays for future X-ray missions like IXO. In the FDM configuration the TES is AC voltage biased at a well defined frequencies (between 0.3 to 10 MHz) and acts as an AM modulating element. In this paper we will present a full comparison of the performance of a TES microcalorimeter under DC bias and AC bias at a frequency of 370 kHz. In both cases we measured the current-to-voltage characteristics, the complex impedance, the noise, the X-ray responsivity, and energy resolution. The behaviour is very similar in both cases, but deviations in performances are observed for detector working points low in the superconducting transition (R/R N <0.5). The measured energy resolution at 5.89 keV is 2.7 eV for DC bias and 3.7 eV for AC bias, while the baseline resolution is 2.8 eV and 3.3 eV, respectively.

TES/Aura L2 Instantaneous Radiative Kernel Nadir Special Observation V007

Data.gov (United States)

National Aeronautics and Space Administration — Using TES radiances, Jacobians and ozone profiles with hemispherical integration, it is possible to compute the TOA (top-of-atmosphere) flux from the infrared ozone...

Advances in the valorization of waste and by-product materials as thermal energy storage (TES) materials

OpenAIRE

Gutiérrez, Andrea; Miró, Laia; Gil, Antoni; Rodríguez Aseguinolaza, Javier; Barreneche Güerisoli, Camila; Calvet, Nicolas; Py, Xavier; Fernández Renna, Ana Inés; Grágeda, Mario; Ushak, Svetlana; Cabeza, Luisa F.

2016-01-01

Today, one of the biggest challenges our society must face is the satisfactory supply, dispatchability and management of the energy. Thermal Energy Storage (TES) has been identified as a breakthrough concept in industrial heat recovery applications and development of renewable technologies such as concentrated solar power (CSP) plants or compressed air energy storage (CAES). A wide variety of potential heat storage materials has been identified depending on the implemented TES method: sensibl...

UJI VALIDASI TES FROSTIG UNTUK MENGUKUR KEMAMPUAN PERSEPSI VISUAL ANAK PRASEKOLAH DI YOGYAKARTA

Directory of Open Access Journals (Sweden)

Rahma Widyana

2016-08-01

Full Text Available Penelitian ini bertujuan untuk mengetahui validitas dan reliabilitas Marianne Frostig Developmental Test of Visual Perception (Tes Frostig untuk mengukur kemampuan persepsi visual anak-anak prasekolah. Subjek penelitian 102 anak-anak prasekolah yang mengikuti pendidikan Taman Kanak-Kanak di TKIT Salman Al Farisi 2 Sleman Yogyakarta, TKIT Insan Utama, Bantul, TKIT Ibnu Abbas 3 Minggir Sleman, TKIT Insan Mulia Sentolo Kulon Progo, TK ABA Margakaton 3 Seyegan Sleman Yogyakarta, dengan rentang usia antara 4 tahun 1 bulan sampai 6 tahun 3 bulan. Hasil penelitian menunjukkan bahwa sebagian besar aitem Tes Persepsi Visual yang disusun oleh Frostig, berkolaborasi dengan Lefever dan Whittlesey pada tahun 1963 masih teruji validitas dan reliabilitasnya hingga saat ini. Meskipun demikian, penggunaannya perlu dikuatkan dengan tes lainnya mengingat koefisien reliabilitas khususnya subtes 3 dan 5 yang relatif rendah. Untuk subtes pertama (eye motor coordination yang terdiri dari 16 butir ditemukan 11 aitem valid dengan angka korelasi antara 0,213 sampai dengan 0,564. Untuk subtes kedua figure ground terdiri dari 8 aitem, semua aitem valid dengan angka korelasi 0,330 sampai dengan 0,673. Subtes ketiga (constancy of shape bagian pertama dan kedua, terdiri dari 32 aitem, terdapat 18 aitem valid dengan angka korelasi antara 0,223 sampai dengan 0,692. Subtes keempat (position of shape yang terdiri dari 8 aitem, 6 aitem valid dengan angka korelasi 0,244 sampai 0,353. Subtes kelima (spatial relationship yang terdiri dari 7 aitem (untuk usia prasekolah aitem 8 tidak diberikan, 6 aitem valid dengan angka korelasi antara 0,16 sampai dengan 0,512. Reliabilitas subtes bergerak dari 0,476 – 0,820. Terdapatnya korelasi yang signifikan antara skor skala subtes dengan skor total dengan rentang korelasi 0,406 – 0,754 menunjukkan bahwa semua subtes yang terdapat dalam tes Frostig menunjukkan relevansi untuk menggambarkan skor total kemampuan persepsi visual.

Development of a Luminex Bead Based Assay for Diagnosis of Toxocariasis Using Recombinant Antigens Tc-CTL-1 and Tc-TES-26.

Directory of Open Access Journals (Sweden)

John P Anderson

Full Text Available The clinical spectrum of human disease caused by the roundworms Toxocara canis and Toxocara cati ranges from visceral and ocular larva migrans to covert toxocariasis. The parasite is not typically recovered in affected tissues, so detection of parasite-specific antibodies is usually necessary for establishing a diagnosis. The most reliable immunodiagnostic methods use the Toxocara excretory-secretory antigens (TES-Ag in ELISA formats to detect Toxocara-specific antibodies. To eliminate the need for native parasite materials, we identified and purified immunodiagnostic antigens using 2D gel electrophoresis followed by electrospray ionization mass spectrometry. Three predominant immunoreactive proteins were found in the TES; all three had been previously described in the literature: Tc-CTL-1, Tc-TES-26, and Tc-MUC-3. We generated Escherichia coli expressed recombinant proteins for evaluation in Luminex based immunoassays. We were unable to produce a functional assay with the Tc-MUC-3 recombinant protein. Tc-CTL-1 and Tc-TES-26 were successfully coupled and tested using defined serum batteries. The use of both proteins together generated better results than if the proteins were used individually. The sensitivity and specificity of the assay for detecting visceral larval migrans using Tc-CTL-1 plus Tc-TES-26 was 99% and 94%, respectively; the sensitivity for detecting ocular larval migrans was 64%. The combined performance of the new assay was superior to the currently available EIA and could potentially be employed to replace current assays that rely on native TES-Ag.

Dates of publication of the Zoology parts of the Report of the Scientific Results of the Voyage of H.M.S. Challenger During the Years 1873-76.

Science.gov (United States)

Low, Martyn E Y; Evenhuis, Neal L

2013-01-01

The dates of publication and exact titles of the 83 parts of the Zoology of the Report of the Scientific Results of the Voyage of H.M.S. Challenger During the Years 1873-76 are presented. Exact dates of publication for 71 of these parts have been determined using notices of their publication in contemporary publications. The dates of publication of the two Narrative volumes of the voyage of the H.M.S. Challenger (which contain available indications of new names) are also determined.

Determinan Perilaku Tes HIV pada Ibu Hamil

Directory of Open Access Journals (Sweden)

Nanik Setiyawati

2015-04-01

pengetahuan tentang HIV dan AIDS, persepsi kerentanan diri dan sikap ibu. Ada hubungan antara PITC, ketersediaan sumber informasi tentang HIV dan AIDS dari keluarga dan kader kesehatan dengan perilaku tes HIV pada ibu hamil. PITC merupakan variabel yang paling berpengaruh terhadap perilaku tes HIV pada ibu hamil. Determinant of HIV Testing Behavior among Pregnant Women Human immunodeficiency virus (HIV and Acquired immune deficiency syndrome (AIDS is one of highlighted issues in accomplishing Millenium Development Goals (MDGs target. Pregnant women with HIV will transmit the virus to their babies. HIV testing is such an opening gate of HIV status that is very important to be conducted on pregnant women. This study aimed to determine the determinant of HIV testing behaviour among pregnant women including education level, knowledge level, perception of selfvulnerability to be HIV-infected, attitudes, Provider-Initiated Testing and Counseling (PITC and availability of information (family and health workers. This study was cross sectional using a survey method. This study was conducted in Mantrijeron and Sleman Primary Health Care that had HIV testing facilities and executed prevention of mother to child transmission program. The subjects of this study were pregnant women visiting such primary health care on August up to October 2014, as much as 54 people. Data collecting used questionnaire. Analysed used were univariate, biviariate, and multivariate. The results showed no relation between educational level, knowledge level about HIV and AIDS, perception of self-vulnerability and attitudes of women.There was a relation between PITC, information source availability about HIV and AIDS from the family and health workers with HIV testing behaviour among pregnant women. PITC is the most influencing variable toward HIV testing behaviour among pregnant women.

Lightning NOx emissions over the USA constrained by TES ozone observations and the GEOS-Chem model

Science.gov (United States)

Jourdain, L.; Kulawik, S. S.; Worden, H. M.; Pickering, K. E.; Worden, J.; Thompson, A. M.

2010-01-01

Improved estimates of NOx from lightning sources are required to understand tropospheric NOx and ozone distributions, the oxidising capacity of the troposphere and corresponding feedbacks between chemistry and climate change. In this paper, we report new satellite ozone observations from the Tropospheric Emission Spectrometer (TES) instrument that can be used to test and constrain the parameterization of the lightning source of NOx in global models. Using the National Lightning Detection (NLDN) and the Long Range Lightning Detection Network (LRLDN) data as well as the HYPSLIT transport and dispersion model, we show that TES provides direct observations of ozone enhanced layers downwind of convective events over the USA in July 2006. We find that the GEOS-Chem global chemistry-transport model with a parameterization based on cloud top height, scaled regionally and monthly to OTD/LIS (Optical Transient Detector/Lightning Imaging Sensor) climatology, captures the ozone enhancements seen by TES. We show that the model's ability to reproduce the location of the enhancements is due to the fact that this model reproduces the pattern of the convective events occurrence on a daily basis during the summer of 2006 over the USA, even though it does not well represent the relative distribution of lightning intensities. However, this model with a value of 6 Tg N/yr for the lightning source (i.e.: with a mean production of 260 moles NO/Flash over the USA in summer) underestimates the intensities of the ozone enhancements seen by TES. By imposing a production of 520 moles NO/Flash for lightning occurring in midlatitudes, which better agrees with the values proposed by the most recent studies, we decrease the bias between TES and GEOS-Chem ozone over the USA in July 2006 by 40%. However, our conclusion on the strength of the lightning source of NOx is limited by the fact that the contribution from the stratosphere is underestimated in the GEOS-Chem simulations.

Experimental investigation of thermal de-stratification in rock bed TES systems for high temperature applications

International Nuclear Information System (INIS)

Okello, Denis; Nydal, Ole J.; Banda, Eldad J.K.

2014-01-01

Highlights: • High thermal stratifications exists rock bed TES when charge with high temperature heat. • Faster thermal degradation occurs in highly stratified bed irrespective of the bed length. • Average rate of heat loss as a function of storage time increases with increasing average bed temperature. - Abstract: Solar energy fluctuates so much that it cannot promote continuous use. Integration of Thermal Energy Storage (TES) with solar energy collection devices has the potential of making solar energy available on demand. Thermal energy can be stored in a bed of rocks at temperatures suitable for applications like cooking, boiling space heating, etc. During charging, temperature stratification is observed in the bed. In a stratified system, if the heat is used immediately, then it is possible to extract heat at reasonably high temperature from the top. For cases where the system is to be used after sometime (later at night or the following morning), the high temperature heat at the top is observed to degrade as the system tries to establish thermal equilibrium irrespective of the bed height. The average rate of heat loss from the TES unit to the ambient is found to increase with increasing average bed temperatures

Mini-TES Observations of the Gusev and Meridiani Landing Sites

Science.gov (United States)

Christensen, Philip; Arvidson, Raymond; Bandfield, Joshua L.; Blaney, Diana; Budney, Charles; Calvin, Wendy; Ciccolella, Sandra; Fallacro, Alicia; Fergason, Robin; Glotch, Timothy

2004-01-01

The Miniature Thermal Emission Spectrometer (Mini-TES) has provided remote measurements of the mineralogy and thermophysical properties of the scene surrounding the Mars Exploration Rovers. The specific scientific objectives of this investigation are to: (1) determine the mineralogy of rocks and soils; (2) determine the thermophysical properties of surface materials; and (3) determine the temperature profile, dust and water-ice opacity, and water vapor abundance in the lower atmospheric boundary layer.

Reflectance and Thermal Infrared Spectroscopy of Mars: Relationship Between ISM and TES for Compositional Determinations

Science.gov (United States)

Boyce, Joseph (Technical Monitor); Mustard, John

2004-01-01

Reflectance spectroscopy has demonstrated that high albedo surfaces on Mars contain heavily altered materials with some component of hematite, poorly crystalline ferric oxides, and an undefined silicate matrix. The spectral properties of many low albedo regions indicate crystalline basalts containing both low and high calcium pyroxene, a mineralogy consistent with the basaltic SNC meteorites. The Thermal Emission Spectrometer (TES) experiment on the Mars Geochemical Surveyor has acquired critical new data relevant to surface composition and mineralogy, but in a wavelength region that is complementary to reflectance spectroscopy. The essence of the completed research was to analyze TES data in the context of reflectance data obtained by the French ISM imaging spectrometer experiment in 1989. This approach increased our understanding of the complementary nature of these wavelength regions for mineralogic determinations using actual observations of the martian surface. The research effort focused on three regions of scientific importance: Syrtis Major-Isidis Basin, Oxia Palus-Arabia, and Valles Marineris. In each region distinct spatial variations related to reflectance, and in derived mineralogic information and interpreted compositional units were analyzed. In addition, specific science questions related to the composition of volcanics and crustal evolution, soil compositions and pedogenic processes, and the relationship between pristine lithologies and weathering provided an overall science-driven framework for the work. The detailed work plan involved colocation of TES and ISM data, extraction of reflectance and emissivity spectra from areas of known reflectance variability, and quantitative analysis using factor analysis and statistical techniques to determine the degree of correspondence between these different wavelength regions. Identified coherent variations in TES spectroscopy were assessed against known atmospheric effects to validate that the variations

Domestic demand-side management (DSM): Role of heat pumps and thermal energy storage (TES) systems

International Nuclear Information System (INIS)

Arteconi, A.; Hewitt, N.J.; Polonara, F.

2013-01-01

Heat pumps are seen as a promising technology for load management in the built environment, in combination with the smart grid concept. They can be coupled with thermal energy storage (TES) systems to shift electrical loads from high-peak to off-peak hours, thus serving as a powerful tool in demand-side management (DSM). This paper analyzes heat pumps with radiators or underfloor heating distribution systems coupled with TES with a view to showing how a heat pump system behaves and how it influences the building occupants' thermal comfort under a DSM strategy designed to flatten the shape of the electricity load curve by switching off the heat pump during peak hours (16:00–19:00). The reference scenario for the analysis was Northern Ireland (UK). The results showed that the heat pump is a good tool for the purposes of DSM, also thanks to the use of TES systems, in particular with heating distribution systems that have a low thermal inertia, e.g. radiators. It proved possible to achieve a good control of the indoor temperature, even if the heat pump was turned off for 3 h, and to reduce the electricity bill if a “time of use” tariff structure was adopted. -- Highlights: ► Heat pump heating systems with thermal energy storage are considered. ► System behavior is investigated during a DSM strategy for reducing peak energy demand. ► Heat pump heating systems demonstrate to be able to have an active role in DSM programs. ► A TES system must be coupled with the heat pump in presence of low thermal inertia heating distribution systems. ► Central role played by incentives schemes to promote this technology

Cross-validation of IASI/MetOp derived tropospheric δD with TES and ground-based FTIR observations

Science.gov (United States)

Lacour, J.-L.; Clarisse, L.; Worden, J.; Schneider, M.; Barthlott, S.; Hase, F.; Risi, C.; Clerbaux, C.; Hurtmans, D.; Coheur, P.-F.

2015-03-01

The Infrared Atmospheric Sounding Interferometer (IASI) flying onboard MetOpA and MetOpB is able to capture fine isotopic variations of the HDO to H2O ratio (δD) in the troposphere. Such observations at the high spatio-temporal resolution of the sounder are of great interest to improve our understanding of the mechanisms controlling humidity in the troposphere. In this study we aim to empirically assess the validity of our error estimation previously evaluated theoretically. To achieve this, we compare IASI δD retrieved profiles with other available profiles of δD, from the TES infrared sounder onboard AURA and from three ground-based FTIR stations produced within the MUSICA project: the NDACC (Network for the Detection of Atmospheric Composition Change) sites Kiruna and Izaña, and the TCCON site Karlsruhe, which in addition to near-infrared TCCON spectra also records mid-infrared spectra. We describe the achievable level of agreement between the different retrievals and show that these theoretical errors are in good agreement with empirical differences. The comparisons are made at different locations from tropical to Arctic latitudes, above sea and above land. Generally IASI and TES are similarly sensitive to δD in the free troposphere which allows one to compare their measurements directly. At tropical latitudes where IASI's sensitivity is lower than that of TES, we show that the agreement improves when taking into account the sensitivity of IASI in the TES retrieval. For the comparison IASI-FTIR only direct comparisons are performed because the sensitivity profiles of the two observing systems do not allow to take into account their differences of sensitivity. We identify a quasi negligible bias in the free troposphere (-3‰) between IASI retrieved δD with the TES, which are bias corrected, but important with the ground-based FTIR reaching -47‰. We also suggest that model-satellite observation comparisons could be optimized with IASI thanks to its high

User's Manual for the Biodiversity and Threatened and Endangered Species Experts (BioTES) Tool

National Research Council Canada - National Science Library

Sebesta, Georgia

1996-01-01

The Biodiversity and Threatened and Endangered Species Experts (BioTES), version 1.0 helps installation and government personnel locate points of contact for experts in the areas of biodiversity and threatened and endangered species...

Latvijas uzņēmumu mārketinga aktivitātes interneta vidē.

OpenAIRE

Zujevs, Armands

2015-01-01

Bakalaura darba tēma ir „Latvijas uzņēmumu mārketinga aktivitātes interneta vidē.” Darba mērķis ir, pamatojoties uz teorijā sniegtajām atziņām par interneta mārketingu, kā arī uz interneta lietotāju aptaujas rezultātiem un ekspertu viedokli, novērtēt Latvijas uzņēmumu mārketinga aktivitātes interneta vidē un izstrādāt priekšlikumus to pilnveidošanai. Darba izstrādē ir veikta literatūras analīze, patērētāju anketēšana un nozares ekspertu intervijas. Lai izprastu interneta mārketinga darbība...

Augsnes un zemes kvalitātes novērtējuma karšu digitizēšana

OpenAIRE

Stalīdzāns, Didzis

2014-01-01

Maģistra darba mērķis ir nodrošināt augšņu agroķīmiskās izpētes izstrādes procesa kartogrāfiskā materiāla lietošanas efektivitātes pieaugumu. Maģistra darbā tiek aprakstīts līdzšinējais augšņu agroķīmiskās izstrādes process Valsts augu aizsardzības dienestā un digitālo augšņu karšu izmantošanas iespējas. Pamatojoties uz darbā veiktās izpētes rezultātiem ir definēta problēma: augšņu agroķīmiskās kartes nav pieejamas telpisko datu formātā. Problēmas risinājumam tiek piedāvātas projekta alternat...

DELFIC-TES, Gamma Doses from Nuclear Explosion Radioactive Clouds

International Nuclear Information System (INIS)

1991-01-01

1 - Description of program or function: DELFIC-TES computes the transit gamma exposure from the airborne cloud resulting from a nuclear burst for fixed targets located on or above the earth's surface. 2 - Method of solution - The system is based on a method of producing 'snapshots' of the moving cloud of airborne particles during the transport process of DELFIC. Each particle in each snapshot is then assigned an activity and these data are used to calculate transit exposure by employing an energy-dependent buildup factor technique

Emission Ratios for Ammonia and Formic Acid and Observations of Peroxy Acetyl Nitrate (PAN and Ethylene in Biomass Burning Smoke as Seen by the Tropospheric Emission Spectrometer (TES

Directory of Open Access Journals (Sweden)

Vivienne H. Payne

2011-11-01

Full Text Available We use the Tropospheric Emission Spectrometer (TES aboard the NASA Aura satellite to determine the concentrations of the trace gases ammonia (NH3 and formic acid (HCOOH within boreal biomass burning plumes, and present the first detection of peroxy acetyl nitrate (PAN and ethylene (C2H4 by TES. We focus on two fresh Canadian plumes observed by TES in the summer of 2008 as part of the Arctic Research of the Composition of the Troposphere from Aircraft and Satellites (ARCTAS-B campaign. We use TES retrievals of NH3 and HCOOH within the smoke plumes to calculate their emission ratios (1.0% ± 0.5% and 0.31% ± 0.21%, respectively relative to CO for these Canadian fires. The TES derived emission ratios for these gases agree well with previous aircraft and satellite estimates, and can complement ground-based studies that have greater surface sensitivity. We find that TES observes PAN mixing ratios of ~2 ppb within these mid-tropospheric boreal biomass burning plumes when the average cloud optical depth is low ( < 0.1 and that TES can detect C2H4 mixing ratios of ~2 ppb in fresh biomass burning smoke plumes.

TES arrays for the short wavelength band of the SAFARI instrument on SPICA

Science.gov (United States)

Khosropanah, P.; Hijmering, R.; Ridder, M.; Gao, J. R.; Morozov, D.; Mauskopf, P. D.; Trappe, N.; O'Sullivan, C.; Murphy, A.; Griffin, D.; Goldie, D.; Glowacka, D.; Withington, S.; Jackson, B. D.; Audley, M. D.; de Lange, G.

2012-09-01

SPICA is an infra-red (IR) telescope with a cryogenically cooled mirror (~5K) with three instruments on board, one of which is SAFARI that is an imaging Fourier Transform Spectrometer (FTS) with three bands covering the wavelength of 34-210 μm. We develop transition edge sensors (TES) array for short wavelength band (34-60 μm) of SAFARI. These are based on superconducting Ti/Au bilayer as TES bolometers with a Tc of about 105 mK and thin Ta film as IR absorbers on suspended silicon nitride (SiN) membranes. These membranes are supported by long and narrow SiN legs that act as weak thermal links between the TES and the bath. Previously an electrical noise equivalent power (NEP) of 4×10-19 W/√Hz was achieved for a single pixel of such detectors. As an intermediate step toward a full-size SAFARI array (43×43), we fabricated several 8×9 detector arrays. Here we describe the design and the outcome of the dark and optical tests of several of these devices. We achieved high yield (<93%) and high uniformity in terms of critical temperature (<5%) and normal resistance (7%) across the arrays. The measured dark NEPs are as low as 5×10-19 W/√Hz with a response time of about 1.4 ms at preferred operating bias point. The optical coupling is implemented using pyramidal horns array on the top and hemispherical cavity behind the chip that gives a measured total optical coupling efficiency of 30±7%.

Optical modeling of waveguide coupled TES detectors towards the SAFARI instrument for SPICA

Science.gov (United States)

Trappe, N.; Bracken, C.; Doherty, S.; Gao, J. R.; Glowacka, D.; Goldie, D.; Griffin, D.; Hijmering, R.; Jackson, B.; Khosropanah, P.; Mauskopf, P.; Morozov, D.; Murphy, A.; O'Sullivan, C.; Ridder, M.; Withington, S.

2012-09-01

The next generation of space missions targeting far-infrared wavelengths will require large-format arrays of extremely sensitive detectors. The development of Transition Edge Sensor (TES) array technology is being developed for future Far-Infrared (FIR) space applications such as the SAFARI instrument for SPICA where low-noise and high sensitivity is required to achieve ambitious science goals. In this paper we describe a modal analysis of multi-moded horn antennas feeding integrating cavities housing TES detectors with superconducting film absorbers. In high sensitivity TES detector technology the ability to control the electromagnetic and thermo-mechanical environment of the detector is critical. Simulating and understanding optical behaviour of such detectors at far IR wavelengths is difficult and requires development of existing analysis tools. The proposed modal approach offers a computationally efficient technique to describe the partial coherent response of the full pixel in terms of optical efficiency and power leakage between pixels. Initial wok carried out as part of an ESA technical research project on optical analysis is described and a prototype SAFARI pixel design is analyzed where the optical coupling between the incoming field and the pixel containing horn, cavity with an air gap, and thin absorber layer are all included in the model to allow a comprehensive optical characterization. The modal approach described is based on the mode matching technique where the horn and cavity are described in the traditional way while a technique to include the absorber was developed. Radiation leakage between pixels is also included making this a powerful analysis tool.

Normal Levels of Sox9 Expression in the Developing Mouse Testis Depend on the TES/TESCO Enhancer, but This Does Not Act Alone.

Science.gov (United States)

Gonen, Nitzan; Quinn, Alexander; O'Neill, Helen C; Koopman, Peter; Lovell-Badge, Robin

2017-01-01

During mouse sex determination, transient expression of the Y-linked gene Sry up-regulates its direct target gene Sox9, via a 3.2 kb testis specific enhancer of Sox9 (TES), which includes a core 1.4 kb element, TESCO. SOX9 activity leads to differentiation of Sertoli cells, rather than granulosa cells from the bipotential supporting cell precursor lineage. Here, we present functional analysis of TES/TESCO, using CRISPR/Cas9 genome editing in mice. Deletion of TESCO or TES reduced Sox9 expression levels in XY fetal gonads to 60 or 45% respectively relative to wild type gonads, and reduced expression of the SOX9 target Amh. Although human patients heterozygous for null mutations in SOX9, which are assumed to have 50% of normal expression, often show XY female sex reversal, mice deleted for one copy of Sox9 do not. Consistent with this, we did not observe sex reversal in either TESCO-/- or TES-/- XY embryos or adult mice. However, embryos carrying both a conditional Sox9 null allele and the TES deletion developed ovotestes. Quantitative analysis of these revealed levels of 23% expression of Sox9 compared to wild type, and a significant increase in the expression of the granulosa cell marker Foxl2. This indicates that the threshold in mice where sex reversal begins to be seen is about half that of the ~50% levels predicted in humans. Our results demonstrate that TES/TESCO is a crucial enhancer regulating Sox9 expression in the gonad, but point to the existence of additional enhancers that act redundantly.

Leishmania OligoC-TesT as a simple, rapid, and standardized tool for molecular diagnosis of cutaneous leishmaniasis in Peru.

Science.gov (United States)

Espinosa, Diego; Boggild, Andrea K; Deborggraeve, Stijn; Laurent, Thierry; Valencia, Cristian; Pacheco, Rosa; Miranda-Verástegui, César; Llanos-Cuentas, Alejandro; Leclipteux, Thierry; Dujardin, Jean-Claude; Büscher, Philippe; Arévalo, Jorge

2009-08-01

Molecular methods such as PCR have become attractive tools for diagnosis of cutaneous leishmaniasis (CL), both for their high sensitivity and for their specificity. However, their practical use in routine diagnosis is limited due to the infrastructural requirements and the lack of any standardization. Recently, a simplified and standardized PCR format for molecular detection of Leishmania was developed. The Leishmania OligoC-TesT is based on simple and rapid detection using a dipstick with PCR-amplified Leishmania DNA. In this study, we estimated the diagnostic accuracy of the Leishmania OligoC-TesT for 61 specimens from 44 CL-suspected patients presenting at the leishmaniasis clinic of the Instituto de Medicina Tropical Alexander von Humboldt, Peru. On the basis of parasitological detection and the leishmanin skin test (LST), patients were classified as (i) confirmed CL cases, (ii) LST-positive cases, and (iii) LST-negative cases. The sensitivities of the Leishmania OligoC-TesT was 74% (95% confidence interval (CI), 60.5% to 84.1%) for lesion aspirates and 92% (95% CI, 81.2% to 96.9%) for scrapings. A significantly higher sensitivity was observed with a conventional PCR targeting the kinetoplast DNA on the aspirates (94%) (P = 0.001), while there was no significant difference in sensitivity for the lesion scrapings (88%) (P = 0.317). In addition, the Leishmania OligoC-TesT was evaluated for 13 CL-suspected patients in two different peripheral health centers in the central jungle of Peru. Our findings clearly indicate the high accuracy of the Leishmania OligoC-TesT for lesion scrapings for simple and rapid molecular diagnosis of CL in Peru.

Leishmania OligoC-TesT as a Simple, Rapid, and Standardized Tool for Molecular Diagnosis of Cutaneous Leishmaniasis in Peru▿

Science.gov (United States)

Espinosa, Diego; Boggild, Andrea K.; Deborggraeve, Stijn; Laurent, Thierry; Valencia, Cristian; Pacheco, Rosa; Miranda-Verástegui, César; Llanos-Cuentas, Alejandro; Leclipteux, Thierry; Dujardin, Jean-Claude; Büscher, Philippe; Arévalo, Jorge

2009-01-01

Molecular methods such as PCR have become attractive tools for diagnosis of cutaneous leishmaniasis (CL), both for their high sensitivity and for their specificity. However, their practical use in routine diagnosis is limited due to the infrastructural requirements and the lack of any standardization. Recently, a simplified and standardized PCR format for molecular detection of Leishmania was developed. The Leishmania OligoC-TesT is based on simple and rapid detection using a dipstick with PCR-amplified Leishmania DNA. In this study, we estimated the diagnostic accuracy of the Leishmania OligoC-TesT for 61 specimens from 44 CL-suspected patients presenting at the leishmaniasis clinic of the Instituto de Medicina Tropical Alexander von Humboldt, Peru. On the basis of parasitological detection and the leishmanin skin test (LST), patients were classified as (i) confirmed CL cases, (ii) LST-positive cases, and (iii) LST-negative cases. The sensitivities of the Leishmania OligoC-TesT was 74% (95% confidence interval (CI), 60.5% to 84.1%) for lesion aspirates and 92% (95% CI, 81.2% to 96.9%) for scrapings. A significantly higher sensitivity was observed with a conventional PCR targeting the kinetoplast DNA on the aspirates (94%) (P = 0.001), while there was no significant difference in sensitivity for the lesion scrapings (88%) (P = 0.317). In addition, the Leishmania OligoC-TesT was evaluated for 13 CL-suspected patients in two different peripheral health centers in the central jungle of Peru. Our findings clearly indicate the high accuracy of the Leishmania OligoC-TesT for lesion scrapings for simple and rapid molecular diagnosis of CL in Peru. PMID:19553579

Normal Levels of Sox9 Expression in the Developing Mouse Testis Depend on the TES/TESCO Enhancer, but This Does Not Act Alone.

Directory of Open Access Journals (Sweden)

Nitzan Gonen

2017-01-01

Full Text Available During mouse sex determination, transient expression of the Y-linked gene Sry up-regulates its direct target gene Sox9, via a 3.2 kb testis specific enhancer of Sox9 (TES, which includes a core 1.4 kb element, TESCO. SOX9 activity leads to differentiation of Sertoli cells, rather than granulosa cells from the bipotential supporting cell precursor lineage. Here, we present functional analysis of TES/TESCO, using CRISPR/Cas9 genome editing in mice. Deletion of TESCO or TES reduced Sox9 expression levels in XY fetal gonads to 60 or 45% respectively relative to wild type gonads, and reduced expression of the SOX9 target Amh. Although human patients heterozygous for null mutations in SOX9, which are assumed to have 50% of normal expression, often show XY female sex reversal, mice deleted for one copy of Sox9 do not. Consistent with this, we did not observe sex reversal in either TESCO-/- or TES-/- XY embryos or adult mice. However, embryos carrying both a conditional Sox9 null allele and the TES deletion developed ovotestes. Quantitative analysis of these revealed levels of 23% expression of Sox9 compared to wild type, and a significant increase in the expression of the granulosa cell marker Foxl2. This indicates that the threshold in mice where sex reversal begins to be seen is about half that of the ~50% levels predicted in humans. Our results demonstrate that TES/TESCO is a crucial enhancer regulating Sox9 expression in the gonad, but point to the existence of additional enhancers that act redundantly.

Costs of decommissioning nuclear power plants as reported to the public to date

International Nuclear Information System (INIS)

Strasma, J.D.

1982-01-01

This paper attempts to determine what information has been available to the public, in the United States, concerning the cost of decommissioning nuclear power plants. The search was conducted in the Television News Index and Abstracts, in the annual indexes to The Reader's Digest, and in two computer-based bibliographic retrieval systems, Lockheed's DIALOG Magazine Index and the New York Times Information Bank. Fewer than ten articles appeared in widely read places, with none at all in the Reader's Digest and none on the evening TV news, from 1974 to date. The cost of decommissioning nuclear power plants was reported in various ways, with a wide range of estimates and relatively little actual experience. Costs were given in dollars of different years, in percentages of construction costs, in cost per KWH as per month to the consumer, etc., making the range of reported costs seem even wider than it really was. It is not surprising that the public fears that decommissioning costs will be alarmingly high. The public debate on energy policy might be more rational with better information on decommissioning costs. 16 references

Electron spin resonance dating of human teeth from Toca da Santa shelter of São Raimundo Nonato, Piauí, Brazil

Science.gov (United States)

Kinoshita, A.; Figueiredo, A. M. G.; Felice, G. D.; Lage, M. C. S. M.; Guidon, N.; Baffa, O.

2008-02-01

Results of the dating of fossil human teeth excavated from a shelter in the surroundings areas of the Serra da Capivara National Park, São Raimundo Nonato, Piauí, Brazil are presented. This shelter was partially excavated to search for more data that could improve the archaeological context of the Garrincho’s limestone hill sites, where the Toca do Gordo do Garrincho shelter provided two human teeth dated by conventional C-14 in (12,170 ± 40) yBP (years before present) and calibrated age (2 Sigma, 95% probability) 15,245 14,690 yBP (Beta 136204) [E. Peyre, C. Guérin, N. Guidon, I. Coppens, CR Acad. Sci. Paris, Sciences de la terre et des planètes/ Earth & Planetary Sciences 327 (1998) 335, [1

75 FR 17955 - Public Land Order No. 7736; Partial Revocation of the Bureau of Reclamation Order Dated February...

Science.gov (United States)

2010-04-08

... DEPARTMENT OF THE INTERIOR Bureau of Land Management [LLCA930000; CACA 7817] Public Land Order No. 7736; Partial Revocation of the Bureau of Reclamation Order Dated February 19, 1952; California AGENCY: Bureau of Land Management. ACTION: Correction. SUMMARY: The Bureau of Land Management published a...

Optimization of X-ray Absorbers for TES Microcalorimeters

Science.gov (United States)

Iyomoto, Naoko; Sadleir, John E.; Figueroa-Feliciano, Enectali; Saab, Tarek; Bandler, Simon; Kilbourne, Caroline; Chervenak, James; Talley, Dorothy; Finkbeiner, Fred; Brekosky, Regis

2004-01-01

We have investigated the thermal, electrical, and structural properties of Bi and BiCu films that are being developed as X-ray absorbers for transition-edge sensor (TES) microcalorimeter arrays for imaging X-ray spectroscopy. Bi could be an ideal material for an X-ray absorber due to its high X-ray stopping power and low heat capacity, but it has a low thermal conductivity, which can result in position dependence of the pulses in the absorber. In order to improve the thermal conductivity, we added Cu layers in between the Bi layers. We measured electrical and thermal conductivities of the films around 0.1 K(sub 1) the operating temperature of the TES calorimeter, to examine the films and to determine the optimal thickness of the Cu layer. From the electrical conductivity measurements, we found that the Cu is more resistive on the Bi than on a Si substrate. Together with an SEM picture of the Bi surface, we concluded that the rough surface of the Bi film makes the Cu layer resistive when the Cu layer is not thick enough t o fill in the roughness. From the thermal conductivity measurements, we determined the thermal diffusion constant to be 2 x l0(exp 3) micrometers squared per microsecond in a film that consists of 2.25 micrometers of Bi and 0.1 micrometers of Cu. We measured the position dependence in the film and found that its thermal diffusion constant is too low to get good energy resolution, because of the resistive Cu layer and/or possibly a very high heat capacity of our Bi films. We show plans to improve the thermal diffusion constant in our BiCu absorbers.

Array-scale performance of TES X-ray Calorimeters Suitable for Constellation-X

Science.gov (United States)

Kilbourne, C. A.; Bandler, S. R.; Brown, A. D.; Chervenak, J. A.; Eckart, M. E.; Finkbeiner, F. M.; Iyomoto, N.; Kelley, R. L.; Porter, F. S.; Smith, S. J.;

School Counselors' Role in Dating Violence Intervention

Science.gov (United States)

Craigen, Laurie M.; Sikes, April; Healey, Amanda; Hays, Danica

2009-01-01

Dating violence among adolescents is a major public health concern. The purpose of this paper is to examine five factors of which school counselors must be aware in order to recognize, intervene, and report incidence of dating violence. These factors are (a) understanding the diverse definitions of dating violence, (b) recognizing dating violence…

Gestion des côtes marocaines : renforcement des capacités d ...

International Development Research Centre (IDRC) Digital Library (Canada)

Les répercussions de la hausse du niveau de la mer, de l'inondation des côtes et des ondes de tempête constituent un enjeu de plus en plus important en matière de politiques pour les planificateurs, les autorités locales et les intervenants de secteurs comme la côte nord-est du Maroc. Ce projet financera le renforcement ...

Towards a Comprehensive and Up-To-Date Institutional Repository: Development of a Publications Tracking Process

KAUST Repository

Baessa, Mohamed

2016-06-15

As our repository matured we found that a concerted effort was needed to establish it as a resource that institutional stakeholders knew they could turn to for reliable information about the research outputs produced by researchers affiliated with or funded by our institution. The initial impetus for this project was the adoption of an institutional open access policy, which necessitated a process to track the publications of institutional authors, deposit items with applicable open access licenses, and notify authors when an accepted manuscript was needed. To support this process we developed a local publications tracking system independent of our hosted DSpace repository that regularly queries publisher and indexer APIs for new publications, checks for relevant permissions policies, identifies institutional authors and helps us send manuscript request emails. We also harvested records for past items and modified our repository to accommodate metadata-only records. The success of these tracking and harvesting services in making our repository comprehensive and up-to-date has allowed us to rely on our repository as the key source of publications information for additional integrations that update ORCID records with publication information, populate a PlumX metrics dashboard and, most recently, support the implementation of a current research information system (CRIS).

Towards a Comprehensive and Up-To-Date Institutional Repository: Development of a Publications Tracking Process

KAUST Repository

Baessa, Mohamed A.; Grenz, Daryl M.; Wang, Han

2016-01-01

As our repository matured we found that a concerted effort was needed to establish it as a resource that institutional stakeholders knew they could turn to for reliable information about the research outputs produced by researchers affiliated with or funded by our institution. The initial impetus for this project was the adoption of an institutional open access policy, which necessitated a process to track the publications of institutional authors, deposit items with applicable open access licenses, and notify authors when an accepted manuscript was needed. To support this process we developed a local publications tracking system independent of our hosted DSpace repository that regularly queries publisher and indexer APIs for new publications, checks for relevant permissions policies, identifies institutional authors and helps us send manuscript request emails. We also harvested records for past items and modified our repository to accommodate metadata-only records. The success of these tracking and harvesting services in making our repository comprehensive and up-to-date has allowed us to rely on our repository as the key source of publications information for additional integrations that update ORCID records with publication information, populate a PlumX metrics dashboard and, most recently, support the implementation of a current research information system (CRIS).

Pengembangan tes kemampuan literasi sains pada materi momentum dan impuls dengan Analisis Item Response Theory (IRT

Directory of Open Access Journals (Sweden)

Della Apriyani Kusuma Putri

2018-04-01

Full Text Available Kemampuan literasi sains adalah suatu kemampuan yang memungkinkan seseorang untuk membuat suatu keputusan dengan pengetahuan konsep dan proses sains yang dimilikinya. Berbagai macam permasalahan yang terjadi di era globalisasi ini menuntut siswa untuk tidak hanya cakap dalam aspek kognitif tapi juga mampu memberi keputusan untuk memecahkan permasalahan, sehingga dapat dikatakan bahwa kemampuan literasi sains adalah kemampuan yang penting dan harus dimiliki siswa. Oleh karena itu, dibutuhkan instrumen untuk mengukur kemampuan literasi sains. hal inilah yang mendasari peneliti mengembangkan instrumen kemampuan literasi sains. Tujuan penelitian ini adalah untuk mengembangkan dan mengetahui karakteristik tes kemampuan literasi sains fisika siswa SMA pada materi momentum dan impuls berdasarkan aspek literasi sains yang dikemukakan oleh Gormally. Metode penelitian yang diterapkan adalah penelitian dan pengembangan (Research and Development yaitu metode penelitian yang digunakan untuk menghasilkan produk tertentu, dan menguji keefektifan produk tersebut. Sebelum diuji coba tes telah divalidasi oleh tiga orang validator dan menghasilkan kesimpulan bahwa tes cukup baik dan dapat diuji coba. Hasil analisis menggunakan Item Response Theory menunjukkan bahwa model 3PL adalah model yang sesuai dengan karakteristik tes. Sedangkan karakteristik tes yang meliputi daya pembeda, tingkat kesukaran, dan faktor tebakan termasuk dalam kategori baik. Science literacy skills is an ability that allows one to make a decision with the knowledge of the concepts and processes of science has. A wide variety of problems that occur in a globalized world requires students to not only proficient in cognitive but also able to make a decision to solve the problem, so it can be said that the ability of science literacy is an important capability and must be owned by the students. Therefore, the instrument is required to measure the ability of science literacy. This problem is

17 CFR 232.13 - Date of filing; adjustment of filing date.

Science.gov (United States)

2010-04-01

..., shall not affect the date of filing. (2) If the conditions of paragraph (a)(1) of this section are... and consistent with the public interest and the protection of investors. (c) Payment of fees. Fees...

Experimental and Numerical Research Activity on a Packed Bed TES System

Directory of Open Access Journals (Sweden)

Mario Cascetta

2016-09-01

Full Text Available This paper presents the results of experimental and numerical research activities on a packed bed sensible thermal energy storage (TES system. The TES consists of a cylindrical steel tank filled with small alumina beads and crossed by air used as the heat transfer fluid. Experimental tests were carried out while varying some operating parameters such as the mass flow rate, the inlet–outlet temperature thresholds and the aspect ratio (length over diameter. Numerical simulations were carried out using a one-dimensional model, specifically developed in the Matlab-Simulink environment and a 2D axisymmetric model based on the ANSYS-Fluent platform. Both models are based on a two-equation transient approach to calculate fluid and solid phase temperatures. Thermodynamic properties were considered to be temperature-dependent and, in the Computational Fluid Dynamics (CFD model, variable porosity of the bed in the radial direction, thermal losses and the effective conductivity of the alumina beads were also considered. The simulation results of both models were compared to the experimental ones, showing good agreement. The one-dimensional model has the advantage of predicting the axial temperature distribution with a very low computational cost, but it does not allow calculation of the correct energy stored when the temperature distribution is strongly influenced by the wall. To overcome this problem a 2D CFD model was used in this work.

rTES-30USM: cloning via assembly PCR, expression, and evaluation of usefulness in the detection of toxocariasis.

Science.gov (United States)

Norhaida, A; Suharni, M; Liza Sharmini, A T; Tuda, J; Rahmah, N

2008-03-01

Currently, the laboratory diagnosis of toxocariasis, caused by Toxocara canis or T. cati, mainly relies on serological tests. Unfortunately, however, the specificities of most of the commercial tests that are available for the serodiagnosis of this disease are not very high and this may cause problems, especially in tropical countries where co-infections with other helminths are common. In an effort to develop a serological assay with improved specificity for the detection of Toxocara infection, an IgG(4)-ELISA based on a recombinant version (rTES-30USM) of the 30-kDa Toxocara excretory-secretory antigen (TES-30) has recently been developed. To produce the antigen, the TES-30 gene was cloned via assembly PCR, subcloned into a His-tagged prokaryotic expression vector, and purified by affinity chromatography using Ni(2+)-nitrilotriacetic-acid (Ni-NTA) resin. The performance of the ELISA based on the recombinant antigen was then compared with that of commercial kit, based on an IgG-ELISA, for the serodiagnosis of toxocariasis (Toxocara IgG-ELISA; Cypress Diagnostics, Langdorp, Belgium). Both assays were used to test 338 serum samples, including 26 samples from probable cases of toxocariasis. Assuming that all the probable cases were true cases, the assay based on rTES-30USM demonstrated a sensitivity of 92.3% (24/26) and a specificity of 89.6% (103/115) whereas the commercial kit exhibited a sensitivity of 100% (26/26) but a specificity of only 55.7% (64/115). The high sensitivity and specificity exhibited by the new IgG(4)-ELISA should make the assay a good choice for use in tropical countries and any other area where potentially cross-reactive helminthic infections are common.

Iedzīvotāju mobilitātes izpausmes Kārsavas pilsētā

OpenAIRE

Bleive, Jolanta

2010-01-01

Bakalaura darba „Iedzīvotāju mobilitātes izpausmes Kārsavas pilsētā” mērķis ir izanalizēt migrācijas procesu Kārsavas pilsētā. Iedzīvotāju mobilitāte ir jēdziens, ar ko tiek apzīmēta personu kustība vai pārvietošanās. Bakalaura darbā tiek aplūkota galvenokārt iedzīvotāju mobilitāte un tai raksturīgākās iezīmes Kārsavas pilsētā. Darbs tiek strukturēts divās daļās – teorētiskās studijas un Kārsavas pilsētas iedzīvotāju mobilitātes analīze. Pētījumā tiek apskatīti un raksturoti iedzīvotāju s...

SiGe Integrated Circuit Developments for SQUID/TES Readout

Science.gov (United States)

Prêle, D.; Voisin, F.; Beillimaz, C.; Chen, S.; Piat, M.; Goldwurm, A.; Laurent, P.

2018-03-01

SiGe integrated circuits dedicated to the readout of superconducting bolometer arrays for astrophysics have been developed since more than 10 years at APC. Whether for Cosmic Microwave Background (CMB) observations with the QUBIC ground-based experiment (Aumont et al. in astro-ph.IM, 2016. arXiv:1609.04372) or for the Hot and Energetic Universe science theme with the X-IFU instrument on-board of the ATHENA space mission (Barret et al. in SPIE 9905, space telescopes & instrumentation 2016: UV to γ Ray, 2016. https://doi.org/10.1117/12.2232432), several kinds of Transition Edge Sensor (TES) (Irwin and Hilton, in ENSS (ed) Cryogenic particle detection, Springer, Berlin, 2005) arrays have been investigated. To readout such superconducting detector arrays, we use time or frequency domain multiplexers (TDM, FDM) (Prêle in JINST 10:C08015, 2016. https://doi.org/10.1088/1748-0221/10/08/C08015) with Superconducting QUantum Interference Devices (SQUID). In addition to the SQUID devices, low-noise biasing and amplification are needed. These last functions can be obtained by using BiCMOS SiGe technology in an Application Specific Integrated Circuit (ASIC). ASIC technology allows integration of highly optimised circuits specifically designed for a unique application. Moreover, we could reach very low-noise and wide band amplification using SiGe bipolar transistor either at room or cryogenic temperatures (Cressler in J Phys IV 04(C6):C6-101, 1994. https://doi.org/10.1051/jp4:1994616). This paper discusses the use of SiGe integrated circuits for SQUID/TES readout and gives an update of the last developments dedicated to the QUBIC telescope and to the X-IFU instrument. Both ASIC called SQmux128 and AwaXe are described showing the interest of such SiGe technology for SQUID multiplexer controls.

Veikala lojalitātes programmas iOS lietotne

OpenAIRE

Freibergs, Kristaps

2013-01-01

Pasaulē izmantoto tehnoloģiju klāstam augot, ir pieaudzis arī mobilo ierīču piedāvājums un to iespējas. Salīdzinoši lielu daļu tirgus ir iekarojusi Apple Inc. ar savu produkciju, tai skaitā iPhone viedtālruņiem. Šajā kvalifikācijas darbā tiek aprakstīta un izstrādāta iPhone ierīces lietotne veikala lojalitātes programmas realizācijai. Lietotnes mērķis ir popularizēt konkrēto veikalu, piedāvājot dažādas lietotājam saistošas funkcijas, tai skaitā, apskatīt tuvākos veikalus, izveidot iepirkumu g...

Propriétés physico-chimiques des pâtes de fruits enrichies aux ...

African Journals Online (AJOL)

NIRINA

fois plus de calcium que le lait de vache, 4 fois plus de vitamine A que la carotte, 3 fois ... Pour pallier le risque de développement des micro-organismes lors de la ..... Figure 2A: Analyses à composantes principales (ACP) des pâtes de tamarin ...

Uzņēmumu "Circle K", "Neste" un "Virši-A" lojalitātes programmas un to novērtējums

OpenAIRE

Stabrovska, Viktorija

2017-01-01

Bakalaura darba tēma ir „Uzņēmumu "Circle K", "Neste" un "Virši-A" lojalitātes programmas un to novērtējums”. Darba mēr is ir veikt uzņēmuma «Circle K», “Neste” un «Virši-A» komunikācijas analīzi par lojalitātes programmām un klientu vērtējumu par uzņēmumu veiktajām klientu lojalitātes veicināšanas aktivitātēm. Darbs sastāv no trīs da ām: teorētiskās, metodolo iskās un empīriskās da as. Darba teorētiskājā da ā izmantota literatūra par zīmolu, mārketingu, mārketinga kompleksu, mārketinga komun...

Additional dates of Sir Andrew Smith's Illustrations of the Zoology of South Africa.

Science.gov (United States)

Low, Martyn E Y; Evenhuis, Neal L

2014-05-14

We update the collation of the dates of publication of Smith's Illustrations of the Zoology of South Africa provided by Waterhouse (1880) and Barnard (1950, 1952). In the case of nine parts, we are able to provide more accurate dates of publication (including day-dates for seven of these parts). For workers of invertebrate taxonomy, we provide an accurate date of publication for W. S. Macleay's volume on Annulosa. 

24 CFR 5.2005 - Protection of victims of domestic violence, dating violence, and stalking in public and Section 8...

Science.gov (United States)

2010-04-01

... 24 Housing and Urban Development 1 2010-04-01 2010-04-01 false Protection of victims of domestic violence, dating violence, and stalking in public and Section 8 housing. 5.2005 Section 5.2005 Housing and Urban Development Office of the Secretary, Department of Housing and Urban Development GENERAL HUD PROGRAM REQUIREMENTS; WAIVERS Protection for...

Le méga-fichier TES dans une nouvelle architecture de surveillance

OpenAIRE

Vitalis, André

2017-01-01

La récente création du méga-fichier biométrique TES de tous les Français, répond, même s’il n’est pas mis en avant, à un souci sécuritaire. Si l’on veut véritablement comprendre les raisons et la portée de cette création, il faut la replacer dans la nouvelle architecture de surveillance en cours de construction depuis plus d’une décennie.

Phenolic compounds as antioxidants and chemopreventive drugs from Streptomyces cellulosae strain TES17 isolated from rhizosphere of Camellia sinensis.

Science.gov (United States)

Rani, Riveka; Arora, Saroj; Kaur, Jeevanjot; Manhas, Rajesh Kumari

2018-03-09

Oxidative stress in an intracellular environment created by the accumulation of reactive oxygen species results in oxidative damage to biomolecules which ultimately become a hallmark for severe diseases like cancer, aging, diabetes, and cardiovascular and neurodegenerative diseases. Various in vitro assays were employed to assess the antioxidant potential of strain, DNA protective activity was demonstrated using DNA nicking assay and cytotoxicity of the extract was evaluated using MTT assay. Further identification of the compounds was done using UPLC analysis. The extract of Streptomyces cellulosae strain TES17 demonstrated significant antioxidant activity with percentage inhibition of 78.47 ± 0.23, 91.08 ± 0.98 and 82.08 ± 0.93 for DPPH, ABTS and superoxide radical assays at 5 mg/mL, respectively. Total antioxidant and reducing power were found to be 76.93 ± 0.76 and 231.96 ± 0.51 mg AAE/100 mg of dry extract, respectively. Moreover, the extract was shown to inhibit lipid peroxidation upto 67.18 ± 1.9% at 5 mg/mL. TPC and TFC measured in the extract was 55 mg GAE/100 mg and 11.17 ± 4.05 mg rutin/100 mg, respectively. The protective nature of the TES17 extract to oxidative stress induced damaged DNA was shown by percentage of supercoiled DNA i.e. Form I was increased from 26.38 to 38.20% at concentrations ranging from 2 μg to 10 μg. TES17 extract also showed the cytotoxic activity against lung cancer cell line with 74.7 ± 1.33% inhibition whereas, limited toxicity was observed against normal cell line with percentage viability of 87.71 ± 6.66 at same concentration (30 μg/mL) tested. The antioxidant capacity of extract was well correlated with its TPC and TFC and this in turn was in keeping with the UPLC analysis which also revealed the presence of phenolic compounds that were responsible for the antioxidant and cytotoxic potential of S. cellulosae strain TES17. The present study describes that S. cellulosae

Large arrays of dual-polarized multichroic TES detectors for CMB measurements with the SPT-3G receiver

Science.gov (United States)

Posada, Chrystian M.; Ade, Peter A. R.; Anderson, Adam J.; Avva, Jessica; Ahmed, Zeeshan; Arnold, Kam S.; Austermann, Jason; Bender, Amy N.; Benson, Bradford A.; Bleem, Lindsey; Byrum, Karen; Carlstrom, John E.; Carter, Faustin W.; Chang, Clarence; Cho, Hsiao-Mei; Cukierman, Ari; Czaplewski, David A.; Ding, Junjia; Divan, Ralu N. S.; de Haan, Tijmen; Dobbs, Matt; Dutcher, Daniel; Everett, Wenderline; Gannon, Renae N.; Guyser, Robert J.; Halverson, Nils W.; Harrington, Nicholas L.; Hattori, Kaori; Henning, Jason W.; Hilton, Gene C.; Holzapfel, William L.; Huang, Nicholas; Irwin, Kent D.; Jeong, Oliver; Khaire, Trupti; Korman, Milo; Kubik, Donna L.; Kuo, Chao-Lin; Lee, Adrian T.; Leitch, Erik M.; Lendinez Escudero, Sergi; Meyer, Stephan S.; Miller, Christina S.; Montgomery, Joshua; Nadolski, Andrew; Natoli, Tyler J.; Nguyen, Hogan; Novosad, Valentyn; Padin, Stephen; Pan, Zhaodi; Pearson, John E.; Rahlin, Alexandra; Reichardt, Christian L.; Ruhl, John E.; Saliwanchik, Benjamin; Shirley, Ian; Sayre, James T.; Shariff, Jamil A.; Shirokoff, Erik D.; Stan, Liliana; Stark, Antony A.; Sobrin, Joshua; Story, Kyle; Suzuki, Aritoki; Tang, Qing Yang; Thakur, Ritoban B.; Thompson, Keith L.; Tucker, Carole E.; Vanderlinde, Keith; Vieira, Joaquin D.; Wang, Gensheng; Whitehorn, Nathan; Yefremenko, Volodymyr; Yoon, Ki Won

2016-07-01

Detectors for cosmic microwave background (CMB) experiments are now essentially background limited, so a straightforward alternative to improve sensitivity is to increase the number of detectors. Large arrays of multichroic pixels constitute an economical approach to increasing the number of detectors within a given focal plane area. Here, we present the fabrication of large arrays of dual-polarized multichroic transition-edge-sensor (TES) bolometers for the South Pole Telescope third-generation CMB receiver (SPT-3G). The complete SPT-3G receiver will have 2690 pixels, each with six detectors, allowing for individual measurement of three spectral bands (centered at 95 GHz, 150 GHz and 220 GHz) in two orthogonal polarizations. In total, the SPT-3G focal plane will have 16140 detectors. Each pixel is comprised of a broad-band sinuous antenna coupled to a niobium microstrip transmission line. In-line filters are used to define the different band-passes before the millimeter-wavelength signal is fed to the respective Ti/Au TES sensors. Detectors are read out using a 64x frequency domain multiplexing (fMux) scheme. The microfabrication of the SPT-3G detector arrays involves a total of 18 processes, including 13 lithography steps. Together with the fabrication process, the effect of processing on the Ti/Au TES's Tc is discussed. In addition, detectors fabricated with Ti/Au TES films with Tc between 400 mK 560 mK are presented and their thermal characteristics are evaluated. Optical characterization of the arrays is presented as well, indicating that the response of the detectors is in good agreement with the design values for all three spectral bands (95 GHz, 150 GHz, and 220 GHz). The measured optical efficiency of the detectors is between 0.3 and 0.8. Results discussed here are extracted from a batch of research of development wafers used to develop the baseline process for the fabrication of the arrays of detectors to be deployed with the SPT-3G receiver. Results from

Optical performance of prototype horn-coupled TES bolometer arrays for SAFARI

Science.gov (United States)

Audley, Michael D.; de Lange, Gert; Gao, Jian-Rong; Khosropanah, Pourya; Hijmering, Richard; Ridder, Marcel L.

2016-07-01

The SAFARI Detector Test Facility is an ultra-low background optical testbed for characterizing ultra-sensitive prototype horn-coupled TES bolmeters for SAFARI, the grating spectrometer on board the proposed SPICA satellite. The testbed contains internal cold and hot black-body illuminators and a light-pipe for illumination with an external source. We have added reimaging optics to facilitate array optical measurements. The system is now being used for optical testing of prototype detector arrays read out with frequency-domain multiplexing. We present our latest optical measurements of prototype arrays and discuss these in terms of the instrument performance.

Efeitos do trimetilaminoetano (TES e ringer lactato em sêmen de macacos-aranha mantidos em cativeiro ( Ateles paniscus e A. marginatus

Directory of Open Access Journals (Sweden)

K.S.M. Silva

2013-06-01

Full Text Available The performances of the diluents TES and CEBRAN II were compared as cryopreservatives of semen from non human primates of the genus Ateles. The experiment was carried out using one Ateles marginatus and two Ateles paniscus specimens, males and adults, maintained in the same captivity conditions at the National Center of Primates (CENP-SVS/MS. The animals were subjected to clinical and andrological examinations - testicular biometry - before the semen collection by eletroejaculation. Evaluations of motility and forward movement in the fresh semen were made. Semen were made dilution was made with the diluents TES and CEBRAN II. The ejaculates were diluted with the diluents (2:1proportion, packed in 0.25mL plastic straws and cryopreserved in liquid nitrogen. After thawing, the packed ejaculates were appraised in thermo resistance test (TTR. The averages of volume and concentration were, respectively, 1.94mL (0.83 and 3,020,000 sptz/mL (275.97. The pH 8 and seminal coagulation were observed in all samples. The results suggest that the TES diluent presents better efficiency in the preservation of Ateles semen than CEBRAN II.

Tropospheric Emission Spectrometer (TES) Satellite Validations of Ammonia, Methanol, Formic Acid, and Carbon Monoxide over the Canadian Oil Sands

Data.gov (United States)

U.S. Environmental Protection Agency — The URLs link to the data archive of the Troposphere Emission Spectrometer (TES) retrievals. These include the transects included in the Canadian Tar Sands study. A...

Date Fighting and Sexual Risk Behaviours among Adolescents ...

African Journals Online (AJOL)

The study seeks to examine the prevalence of date fighting and its role in sexual risk behaviours among 1079 boys and 1211 girls in 22 public secondary schools in Ibadan Nigeria. About 60% (1367) reported to have ever experienced at least a form of date fighting. Risk factors for date fighting in boys include, non use of ...

Design and performance of large-pixel-size high-fill-fraction TES arrays for future X-ray astrophysics missions

International Nuclear Information System (INIS)

Figueroa-Feliciano, E.; Bandler, S.R.; Chervenak, J.; Finkbeiner, F.; Iyomoto, N.; Kelley, R.L.; Kilbourne, C.A.; Porter, F.S.; Saab, T.; Sadleir, J.; White, J.

2006-01-01

We have designed, modeled, fabricated and tested a 600μm high-fill-fraction microcalorimeter array that will be a good match to the requirements of future X-ray missions. Our devices use transition-edge sensors coupled to overhanging bismuth/copper absorbers to produce arrays with 97% or higher fill fraction. An extensive modeling effort was undertaken in order to accommodate large pixel sizes (500-1000μm) and maintain the best energy resolution possible. The finite thermalization time of the large absorber and the associated position dependence of the pulse shape on absorption position constrain the time constants of the system given a desired energy-resolution performance. We show the results of our analysis and our new pixel design, consisting of a novel TES-on-the-side architecture which creates a controllable TES-absorber conductance

Adolescent Perceptions of Dating Violence: A Qualitative Study.

Science.gov (United States)

Taylor, Sarah; Calkins, Carrie A; Xia, Yan; Dalla, Rochelle L

2017-08-01

Scholars have identified dating violence as a public health issue among adolescents. Yet, minimal research has detailed adolescents' perceptions of dating violence, specifically gender differences in perceptions. Research suggests that in order for dating violence prevention and intervention to be effective, services need to be delivered in a manner that is understood by adolescents. Therefore, this study used a qualitative phenomenology study to investigate adolescents' perceptions of dating violence, including gender differences in adolescents' perceptions. Thirty adolescents between the ages of 14 and 19 from a Midwest public high school participated in focus groups. Focus group participants were asked semistructured interview questions regarding the definition of dating violence, risk and protective factors for dating violence, support for victims and perpetrators, and prevention efforts. Data were analyzed using qualitative content analysis methods, and common themes were identified. Adolescents' language revealed gender differences in perceptions toward dating violence. Males perceive dating violence through action, perpetration, and physical consequences. Females discuss dating violence by relating to the victim and the victim's emotions. Although gender differences existed in participants' perceptions, both males and females explained that dating violence is more often perpetrated by females, despite the view from society that males are more likely to perpetrate dating violence. Findings suggest that schools, practitioners, and policy makers are not meeting the needs of adolescents in regard to dating violence prevention and intervention. Prevention and intervention efforts could be improved by delivering education and services using language that adolescents find relevant. Findings also suggest that adolescents may benefit from prevention and intervention with gender specific components.

Skolotāju apmierinātības ar darbu, stresa un pašefektivitātes sakarības skolotāju grupā

OpenAIRE

Radziņš, Rolands

2018-01-01

No skolotāju apmierinātības ar darbu, stresa pārvarēšanas un pašefektivitātes ir atkarīga ne tikai viena konkrēta darbinieka, bet visas izglītības iestādes skolotāju un personāla labizjūta un pedagoģiskā darba efektivitāte kopumā. Pētījuma „Skolotāju apmierinātības ar darbu, stresa un pašefektivitātes sakarības skolotāju grupā” mērķis, saskaņā ar pasūtījumu, bija noskaidrot skolotāju apmierinātību ar darbu, darba stresa un pašefektivitātes sakarības un izstrādāt atbalsta pasākumus un rekomend...

Bismuth X-ray absorber studies for TES microcalorimeters

International Nuclear Information System (INIS)

Sadleir, J.E.; Bandler, S.R.; Brekosky, R.P.; Chervenak, J.; Figueroa-Feliciano, E.; Finkbeiner, F.; Iyomoto, N.; Kelley, R.L.; Kilbourne, C.A.; King, J.M.; Porter, F.S.; Robinson, I.K.; Saab, T.; Talley, D.J.

2006-01-01

Bismuth's large atomic number and low carrier density makes it an attractive X-ray absorber material for microcalorimeters. Bismuth's long Fermi wavelength and long mean free paths have motivated much interest in the fabrication of high quality bismuth films to study quantum size effects. Despite such incentives, fabrication of high quality bismuth films has proven difficult, and measured properties of such films are highly variable in the literature. Implementing a bismuth deposition process for TES (superconducting Transition Edge Sensor) device fabrication presents additional challenges particularly at interfaces due to the inherent granularity and surface roughness of its films, its low melting point, and its tendency to diffuse and form undesired intermetallic phases. We report observations of Bi-Cu and Bi-Au diffusion in our devices correlating with large shifts in T c (superconducting transition temperature). Using SEM and in situ R vs T annealing experiments we have been able to study these diffusion processes and identify their activation temperatures

Physical dating violence victimization in college women in Chile.

Science.gov (United States)

Lehrer, Jocelyn A; Lehrer, Evelyn L; Zhao, Zhenxiang

2010-05-01

There are no published studies on physical dating violence in college students in Chile, and campuses across the country currently lack systematized programs to prevent or respond to this public health problem. This is the first study to examine prevalence and predictors of physical dating violence victimization with a sample of female college students in Chile. A closed-ended questionnaire was administered to students enrolled in general education courses at a major public university. The prevalence of women's physical dating violence victimization was calculated, and generalized ordered logit models were used to estimate risk factors for such victimization (n = 441). Ancillary analyses examined associations of dating violence victimization with experiences of unwanted sexual contact and forced condom nonuse. Approximately 21% of subjects reported one or more incidents of physical dating violence not involving physical injury since age 14, and another 5% reported at least one incident resulting in physical injury during this time period. Risk factors identified in five sequential models were sexual abuse and witnessing of domestic violence in childhood, low parental education, residence away from the parental home, urban residence, and having had sexual intercourse. Maternal employment and religious participation had protective effects. Dating violence victimization was found to be significantly associated with experiences of unwanted sexual contact and forced condom nonuse. The study findings show a high prevalence of physical dating violence, strong associations between several sociodemographic factors and dating violence, and links between dating violence and sexual/reproductive risk. Our results indicate a need to expand attention to this public health problem in Chile as well as other developing countries, where research and prevention/response initiatives have generally been similarly limited. The findings also have important implications for the content of

A novel, highly efficient cavity backshort design for far-infrared TES detectors

Science.gov (United States)

Bracken, C.; de Lange, G.; Audley, M. D.; Trappe, N.; Murphy, J. A.; Gradziel, M.; Vreeling, W.-J.; Watson, D.

2018-03-01

In this paper we present a new cavity backshort design for TES (transition edge sensor) detectors which will provide increased coupling of the incoming astronomical signal to the detectors. The increased coupling results from the improved geometry of the cavities, where the geometry is a consequence of the proposed chemical etching manufacturing technique. Using a number of modelling techniques, predicted results of the performance of the cavities for frequencies of 4.3-10 THz are presented and compared to more standard cavity designs. Excellent optical efficiency is demonstrated, with improved response flatness across the band. In order to verify the simulated results, a scaled model cavity was built for testing at the lower W-band frequencies (75-100 GHz) with a VNA system. Further testing of the scale model at THz frequencies was carried out using a globar and bolometer via an FTS measurement set-up. The experimental results are presented, and compared to the simulations. Although there is relatively poor comparison between simulation and measurement at some frequencies, the discrepancies are explained by means of higher-mode excitation in the measured cavity which are not accounted for in the single-mode simulations. To verify this assumption, a better behaved cylindrical cavity is simulated and measured, where excellent agreement is demonstrated in those results. It can be concluded that both the simulations and the supporting measurements give confidence that this novel cavity design will indeed provide much-improved optical coupling for TES detectors in the far-infrared/THz band.

Development of ROACH firmware for microwave multiplexed X-ray TES microcalorimeters

Energy Technology Data Exchange (ETDEWEB)

Madden, T. J.; Cecil, T. W.; Gades, L. M.; Quaranta, O.; Yan, D.; Miceli, A.; Gard, J. D.

2016-09-04

We are developing room temperature electronics based upon the ROACH platform for reading out microwave multiplexed X-ray TES. ROACH is an open-source hardware and software platform featuring a large Xilinx Field Programmable Gate Array (FPGA), Power PC processor, several 10GB Ethernet SFP+ interfaces, and a collection of daughter boards for analog signal generation and acquisition. The combination of a ROACH board, ADC/DAC conversion daughter boards, and hardware for RF mixing allows for the generation and capture of multiple RF tones for reading out microwave multiplexed x-ray TES microcalorimeters. The FPGA is used to generate multiple tones in base band, from 10MHz to 250MHz, which are subsequently mixed to RF in the multiple GHz range and sent through the microwave multiplexer. The tones are generated in the FPGA by storing a large lookup table in Quad Data Rate (QDR) SRAM modules and playing out the waveform to a DAC board. Once the signal has been modulated to RF, passed through the microwave multiplexer, and has been modulated back to base band, the signal is digitized by an ADC board. The tones are modulated to 0Hz by using a FPGA circuit consisting of a polyphase filter bank, several Xilinx FFT blocks, Xilinx CORDIC blocks (for converting to magnitude and phase), and special phase accumulator circuit for mixing to exactly 0Hz. Upwards of 256 channels can be simultaneously captured and written into a bank of 256 First-In-First-Out (FIFO) memories, with each FIFO corresponding to a channel. Individual channel data can be further processed in the FPGA before being streamed through a 10GB Ethernet fiber-optic interface to a Linux system. The Linux system runs software written in Python and QT C++ for controlling the ROACH system, capturing data, and processing data.

Sulfates on Mars: TES Observations and Thermal Inertia Data

Science.gov (United States)

Cooper, C. D.; Mustard, J. F.

2001-05-01

The high resolution thermal emission spectra returned by the TES spectrometer on the MGS spacecraft have allowed the mapping of a variety of minerals and rock types by different sets of researchers. Recently, we have used a linear deconvolution approach to compare sulfate-palagonite soil mixtures created in the laboratory with Martian surface spectra. This approach showed that a number of areas on Mars have spectral properties that match those of sulfate-cemented soils (but neither loose powder mixtures of sulfates and soils nor sand-sized grains of disaggregated crusted soils). These features do not appear to be caused by atmospheric or instrumental effects and are thus believed to be related to surface composition and texture. The distribution and physical state of sulfate are important pieces of information for interpreting surface processes on Mars. A number of different mechanisms could have deposited sulfate in surface layers. Some of these include evaporation of standing bodies of water, aerosol deposition of volcanic gases, hydrothermal alteration from groundwater, and in situ interaction between the atmosphere and soil. The areas on Mars with cemented sulfate signatures are spread across a wide range of elevations and are generally large in spatial scale. Some of the areas are associated with volcanic regions, but many are in dark red plains that have previously been interpreted as duricrust deposits. Our current work compares the distribution of sulfate-cemented soils as mapped by the spectral deconvolution approach with thermal inertia maps produced from both Viking and MGS-TES. Duricrust regions, interpreted from intermediate thermal inertia values, are large regions thought to be sulfate-cemented soils similar to coherent, sulfate-rich materials seen at the Viking lander sites. Our observations of apparent regions of cemented sulfate are also large in spatial extent. This scale information is important for evaluating formation mechanisms for the

Are BiTEs the "missing link" in cancer therapy?

Science.gov (United States)

Suryadevara, Carter M; Gedeon, Patrick C; Sanchez-Perez, Luis; Verla, Terence; Alvarez-Breckenridge, Christopher; Choi, Bryan D; Fecci, Peter E; Sampson, John H

2015-06-01

Conventional treatment for cancer routinely includes surgical resection and some combination of chemotherapy and radiation. These approaches are frequently accompanied by unintended and highly toxic collateral damage to healthy tissues, which are offset by only marginal prognostic improvements in patients with advanced cancers. This unfortunate balance has driven the development of novel therapies that aim to target tumors both safely and efficiently. Over the past decade, mounting evidence has supported the therapeutic utility of T-cell-centered cancer immunotherapy, which, in its various iterations, has been shown capable of eliciting highly precise and robust antitumor responses both in animal models and human trials. The identification of tumor-specific targets has further fueled a growing interest in T-cell therapies given their potential to circumvent the non-specific nature of traditional treatments. Of the several strategies geared toward achieving T-cell recognition of tumor, bispecific antibodies (bsAbs) represent a novel class of biologics that have garnered enthusiasm in recent years due to their versatility, specificity, safety, cost, and ease of production. Bispecific T-cell Engagers (BiTEs) are a subclass of bsAbs that are specific for CD3 on one arm and a tumor antigen on the second. As such, BiTEs function by recruiting and activating polyclonal populations of T-cells at tumor sites, and do so without the need for co-stimulation or conventional MHC recognition. Blinatumomab, a well-characterized BiTE, has emerged as a promising recombinant bscCD19×CD3 construct that has demonstrated remarkable antitumor activity in patients with B-cell malignancies. This clinical success has resulted in the rapid extension of BiTE technology against a greater repertoire of tumor antigens and the recent US Food and Drug Administration's (FDA) accelerated approval of blinatumomab for the treatment of a rare form of acute lymphoblastic leukemia (ALL). In this review

Acculturation and Dating Violence Victimization among Filipino and Samoan Youths

Science.gov (United States)

Chung-Do, Jane J.; Goebert, Deborah A.

2009-01-01

Dating violence victimization is an important public health issue. Recent studies on minority youths have found higher risks of dating violence victimization compared to White youths. This study examined the influence of acculturation components on youths' experiences of dating violence by utilizing data from a survey of 193 Samoan and Filipino…

Design and Performance of the Multiplexed SQUID/TES Array at Ninety Gigahertz

Science.gov (United States)

Stanchfield, Sara; Ade, Peter; Aguirre, James; Brevik, Justus A.; Cho, Hsiao-Mei; Datta, Rahul; Devlin, Mark; Dicker, Simon R.; Dober, Bradley; Duff, Shannon M.; Egan, Dennis; Ford, Pam; Hilton, Gene; Hubmayr, Johannes; Irwin, Kent; Knowles, Kenda; Marganian, Paul; Mason, Brian Scott; Mates, John A. B.; McMahon, Jeff; Mello, Melinda; Mroczkowski, Tony; Romero, Charles; Sievers, Jonathon; Tucker, Carole; Vale, Leila R.; Vissers, Michael; White, Steven; Whitehead, Mark; Ullom, Joel; Young, Alexander

2018-01-01

We present the array performance and astronomical images from early science results from MUSTANG-2, a 90 GHz feedhorn-coupled, microwave SQUID-multiplexed TES bolometer array operating on the Robert C. Byrd Green Bank Telescope (GBT). MUSTANG-2 was installed on the GBT on December 2, 2016 and immediately began commissioning efforts, followed by science observations, which are expected to conclude June 2017. The feedhorn and waveguide-probe-coupled detector technology is a mature technology, which has been used on instrument including the South Pole Telescope, the Atacama Cosmology Telescope, and the Atacama B-mode Search telescope. The microwave SQUID readout system developed for MUSTANG-2 currently reads out 66 detectors with a single coaxial cable and will eventually allow thousands of detectors to be multiplexed. This microwave SQUID multiplexer combines the proven abilities of millimeterwave TES detectors with the multiplexing capabilities of KIDs with no degradation in noise performance of the detectors. Each multiplexing device is read out using warm electronics consisting of a commercially available ROACH board, a DAC/ADC card, and an Intermediate Frequency mixer circuit. The hardware was originally developed by the UC Berkeley Collaboration for Astronomy Signal Processing and Electronic Research (CASPER) group, whose primary goal is to develop scalable FPGA-based hardware with the flexibility to be used in a wide range of radio signal processing applications. MUSTANG-2 is the first on-sky instrument to use microwave SQUID multiplexing and is available as a shared-risk/PI instrument on the GBT. In MUSTANG-2's first season 7 separate proposals were awarded a total of 230 hours of telescope time.

Dating violence and suicidal behavior in adolescents.

Science.gov (United States)

Holmes, Kristin; Sher, Leo

2013-01-01

The aim of this paper is to assess the possible consequences of adolescent physical, emotional and sexual dating violence through a review of the literature on the topic. An electronic search of major biomedical bibliographic databases (Pubmed, ISI, PsycINFO) was used to retrieve articles providing information on the prevalence rates, risk factors, associated consequences and possible preventive measures for adolescent dating violence across different populations. Currently, there have been few longitudinal studies conducted to identify potential risk factors for entering a violent dating relationship in adolescence. Risky behaviors such as early sexual intercourse may predispose someone for victimization. Dating violence itself is also a predictor of future dating violence. Adolescent dating violence was associated with an increase in other violence-related behaviors, substance use, depression, poorer educational outcomes, posttraumatic stress, unhealthy weight control and risky sexual behavior. The association between adolescent dating violence and an increase in suicidal behavior is a major public health concern. Future research should focus on longitudinal studies so that a causal relationship between dating violence and suicidality may be better understood.

41 CFR 50-203.22 - Effective date of determinations.

Science.gov (United States)

2010-07-01

... Public Contracts PUBLIC CONTRACTS, DEPARTMENT OF LABOR 203-RULES OF PRACTICE Minimum Wage Determinations Under the Walsh-Healey Public Contracts Act § 50-203.22 Effective date of determinations. Any minimum wage determination issued as a result of hearings held under this subpart shall take effect not less...

Dating, sexual activity, and well-being in Italian adolescents

NARCIS (Netherlands)

Ciairano, S; Bonino, S; Kliewer, W; Miceli, R; Jackson, S

Associations among dating, sexual activity, gender and adjustment were investigated in 2,2 73 Italian adolescents (54% female, ages 14 to 19 years) attending public high schools. After controlling for age and type of school attended, both being in a dating relationship and being male were associated

Sensitivity and specificity of the Leishmania OligoC-TesT and NASBA-oligochromatography for diagnosis of visceral leishmaniasis in Kenya

NARCIS (Netherlands)

Basiye, Frank L.; Mbuchi, Margaret; Magiri, Charles; Kirigi, George; Deborggraeve, Stijn; Schoone, Gerard J.; Saad, Alfarazdeg A.; El-Safi, Sayda; Matovu, Enock; Wasunna, Monique K.

2010-01-01

To estimate the sensitivity and specificity of the OligoC-TesT and nucleic acid sequence-based amplification coupled to oligochromatography (NASBA-OC) for molecular detection of Leishmania in blood from patients with confirmed visceral leishmaniasis (VL) and healthy endemic controls from Kenya.

NRCN publications in 1977

International Nuclear Information System (INIS)

Kuznietz, M.; Makeveth, D.; Israeli, O.

1978-09-01

The front-pages of 24 works, written by employees of the Nuclear Research Center - Negev, and published in 1977 by the Publishing Department of its Scientific and Technical Information Service, as publications in the NRCN series or in the NRCN(ER), NRCN(GP), and NRCN(TN) sub-series, are presented. The front-pages include the respective NRCN serial or sub-serial number, title, authors, date of publication, and abstract (and date of receipt, if substantially preceding the date of publication) in the original language (Hebrew or English). The front-page translations (into English or Hebrew, respectively) are also included. Various data, concerning the NRCN publications in 1977, are given, as well as a list of all publications and alphabetical lists of authors (in Hebrew and Latin transliteration)

Dating Violence and Self-Efficacy for Delayed Sex among ...

African Journals Online (AJOL)

In South Africa, dating violence is known to be widespread among adolescents, and is therefore a major public health issue because of its association with sexual risk behaviours. The objective of the study was to examine the relationship between dating violence and self-efficacy for delayed sex among school-going ...

Klientu lojalitātes veicināšanas kritēriji: fitnesa klubu "Atletika", "MyFitness", "Veselības Fabrika" piemērs

OpenAIRE

Rožkalna, Kristīne

2015-01-01

Bakalaura darba tēma ir “Klientu lojalitātes veicināšanas kritēriji: fitnesa klubu “Atletika”, “MyFitness”, “Veselības Fabrika” piemērs”. Bakalaura darba mērķis ir fitnesa klubu “Atletika”, “MyFitness”, “Veselības Fabrika” izpēte, identificējot kritērijus klientu lojalitātes veicināšanā. Darbu veido ievads, teorētiskā, metodoloģijas, empīriskā daļa, secinājumi, ieteikumi, pielikums. Teorētisko daļu veido nodaļas par uzņēmējdarbību, zīmolu, klientu lojalitāti, mārketingu, komunikāciju...

Energy Reconstruction for Events Detected in TES X-ray Detectors

Science.gov (United States)

Ceballos, M. T.; Cardiel, N.; Cobo, B.

2015-09-01

The processing of the X-ray events detected by a TES (Transition Edge Sensor) device (such as the one that will be proposed in the ESA AO call for instruments for the Athena mission (Nandra et al. 2013) as a high spectral resolution instrument, X-IFU (Barret et al. 2013)), is a several step procedure that starts with the detection of the current pulses in a noisy signal and ends up with their energy reconstruction. For this last stage, an energy calibration process is required to convert the pseudo energies measured in the detector to the real energies of the incoming photons, accounting for possible nonlinearity effects in the detector. We present the details of the energy calibration algorithm we implemented as the last part of the Event Processing software that we are developing for the X-IFU instrument, that permits the calculation of the calibration constants in an analytical way.

26 CFR 1.1271-0 - Original issue discount; effective date; table of contents.

Science.gov (United States)

2010-04-01

... Code. (g) Basis adjustment. (h) Debt instruments denominated in a currency other than the U.S. dollar... instruments issued for money. (1) Issue price. (2) Issue date. (b) Publicly traded debt instruments issued for property. (1) Issue price. (2) Issue date. (c) Debt instruments issued for publicly traded property. (1...

Dating Violence and Substance Use among Ethnically Diverse Adolescents

Science.gov (United States)

Temple, Jeff R.; Freeman, Daniel H., Jr.

2011-01-01

Teen dating violence is a serious public health concern with numerous and long-lasting consequences. Although alcohol and drug use have been associated with dating violence, little is known about the role of specific substances, especially the use of club drugs and the nonmedical use of prescription drugs. Thus, the authors examined the…

42 CFR 435.965 - Delay of effective date.

Science.gov (United States)

2010-10-01

... 42 Public Health 4 2010-10-01 2010-10-01 false Delay of effective date. 435.965 Section 435.965 Public Health CENTERS FOR MEDICARE & MEDICAID SERVICES, DEPARTMENT OF HEALTH AND HUMAN SERVICES... describing a good faith effort to come into compliance with the requirements of section 1137 of the Act and...

Biznesa efektivitātes uzlabošanas iespējas uzņēmumā SIA "3K MANAGEMENT"

OpenAIRE

Penēze, Aija

2015-01-01

Aizvien lielāka nozīmē mūsdienās tiek pievērsta atšķirībai starp uzņēmumu vadīšanu un efektīvu uzņēmumu vadīšanu. Uzņēmēji organizācijas vadīšanā savu uzmanību koncentrē uz to, kā uzņēmums preces un pakalpojumus piedāvā, kāds ir tā tēls, kā tiek organizēta uzņēmuma darbība un kultūra. Uzņēmumi arvien vairāk vērš uzmanību uz uzņēmumu vadīšanu ar pievienoto vērtību, tas ir, efektivitātes uzlabošanu. Aijas Penēzes maģistra darba tēma ir „Biznesa efektivitātes uzlabošanas iespējas uzņēmumā SI...

NRCN publications in 1976

International Nuclear Information System (INIS)

Kuznietz, M.; Wiener, U.; Israeli, O.

1977-04-01

The front-pages of 35 works, written by employees of the Nuclear Research Center - Negev, and published in 1976 by the Publishing Department of its Scientific and Technical Information Service, as publications in the NRCN series or in the NRCN(ER), NRCN(ML), and NRCN(TN) sub-series, are presented. The front-pages include the respective NRCN serial or sub-serial number, title, authors, date of publication, and abstract (and date of receipt, if substantially preceding the date of publication) in the original language (Hebrew or English). The front-page translations (into English or Hebrew), if published, are also included. Various data, concerning the NRCN publications in 1976, are given as well as alphabetical lists of authors (in Hebrew and Latin transliteration)

Transition edge sensor-energy-dispersive spectrometer (TES-EDS) using a cryogen-free dilution refrigerator for material analysis

International Nuclear Information System (INIS)

Tanaka, Keiichi; Odawara, Akikazu; Nagata, Atsushi; Ikeda, Masanori; Baba, Yukari; Nakayama, Satoshi; Chinone, Kazuo

2006-01-01

A cryogen-free energy-dispersive spectrometer (EDS) using a transition edge sensor (TES) was developed for material analysis. This system can maintain a temperature at 130 mK within 30 μK, and has good energy resolution (19 eV for Mn-Kα) for long-time measurement with a drift in the DC level of less than 0.02 eV/min. This system utilizes a dilution refrigerator (φ 272 mmxheight 572 mm) and has a snout (370 mm long and φ25 mm) similar to that in a conventional EDS system. The dilution refrigerator is pre-cooled by a GM refrigerator. A flexible tube between the dilution refrigerator and GM refrigerator damps the mechanical vibration of the GM refrigerator. Two shields (4 and 80 K) thermally protect the Cu rod (φ8 mm) cooled to be 100 mK. Windows composed of polyimide+Al film allow X-ray detection above the C-Kα line. A TES (6 mmx6 mm) and array SQUID amplifier (1.5 mmx3 mm) are mounted on top of the Cu rod. For Mn-Kα, the pulse height is 5.5 μA and decay time (τ eff ) is 90 μs. The maximum count rate (1/20 τ eff ) is estimated at about 500 cps

41 CFR 101-39.102-2 - Effective date of determination.

Science.gov (United States)

2010-07-01

... VEHICLES 39-INTERAGENCY FLEET MANAGEMENT SYSTEMS 39.1-Establishment, Modification, and Discontinuance of Interagency Fleet Management Systems § 101-39.102-2 Effective date of determination. Unless a longer time is... 41 Public Contracts and Property Management 2 2010-07-01 2010-07-01 true Effective date of...

Diffusion Behaviour in Superconducting Ti/Au bilayers for SAFARI TES Detectors

Science.gov (United States)

van der Heijden, N. J.; Khosropanah, P.; van der Kuur, J.; Ridder, M. L.

2014-08-01

Controlling the critical temperature () of Ti/Au bilayers is vital in the development of practical TES detectors. Previously empirical studies have been done on aging effects in Ti/Au and other superconducting bilayers but no link with theory has been made. Here we attempt to explain the change in with a diffusion mechanism. The change in has been measured for a set of Ti/Au bilayer samples that have been given a variety of bake-out treatments, where we found a trend that can be partly explained by an inter-diffusion mechanism. With an empirical model based on diffusion a safe zone can be defined as a region of bake-out treatments, where the is not affected beyond the requirements. This will shine light on the bake-out and the storage condition boundaries of these detectors.

43 CFR 30.148 - Will interest or penalties charged after the date of death be paid?

Science.gov (United States)

2010-10-01

... date of death be paid? Interest or penalties charged against claims after the date of death will not be... 43 Public Lands: Interior 1 2010-10-01 2010-10-01 false Will interest or penalties charged after the date of death be paid? 30.148 Section 30.148 Public Lands: Interior Office of the Secretary of the...

41 CFR 101-4.100 - Purpose and effective date.

Science.gov (United States)

2010-07-01

... EDUCATION PROGRAMS OR ACTIVITIES RECEIVING FEDERAL FINANCIAL ASSISTANCE Introduction § 101-4.100 Purpose and... 41 Public Contracts and Property Management 2 2010-07-01 2010-07-01 true Purpose and effective date. 101-4.100 Section 101-4.100 Public Contracts and Property Management Federal Property Management...

Plato’s Republic to Rivers’Five Spot: Poets Among Painters De la République de Platon au « Five Spot » à Manhattan : des poètes chez les peintres

Directory of Open Access Journals (Sweden)

Eamonn Wall

2007-01-01

Full Text Available Dans cet article, Eamonn Wall considère les œuvres de divers artistes et penseurs de l’âge classique à l’époque actuelle, et tente de décrire les diverses méthodologies choisies par les écrivains et leurs commentateurs pour écrire des poèmes et les interpréter. Il sera principalement question ici des poètes de l’École de New York qui, apparue dans les années 1950, comprenait parmi ses membres des poètes tels que John Ashbery, Frank O’ Hara, James Schuyler, Kenneth Koch, et bien d’autres encore. Ce mouvement poétique empruntait son nom au groupe de peintres qui occupa la scène new yorkaise après la Deuxième Guerre mondiale. Eamonn Wall s’arrête sur différents points de convergence et de dissonance entre les poètes et les peintres de ces Écoles, avant de considérer les liens entre poésie et arts visuels dans l’Irlande et la Grande-Bretagne tant contemporaines qu’anciennes afin de montrer les échecs et les réussites des poètes qui essayèrent de faire de la poésie à partir des arts visuels. Il conclut que pour un poète, un tableau est toujours un sujet irrésistible et se montre certain que tant qu’il y aura des œuvres aux murs des musées, il y aura des poètes pour les mettre en poésie.

Development and characterization of a TES optical imaging array for astrophysics applications

International Nuclear Information System (INIS)

Burney, J.; Bay, T.J.; Brink, P.L.; Cabrera, B.; Castle, J.P.; Romani, R.W.; Tomada, A.; Nam, S.W.; Miller, A.J.; Martinis, J.; Wang, E.; Kenny, T.; Young, B.A.

2004-01-01

Our research group has successfully developed photon detectors capable of both time-stamping and energy-resolving individual photons at very high rates in a wide band from the near-IR through optical and into the near-UV. We have fabricated 32-pixel arrays of these Transition-Edge Sensor (TES) devices and have mounted them in an adiabatic demagnetization refrigerator equipped with windows for direct imaging. We have characterized single pixel behavior; we have also begun operating multiple pixels simultaneously, starting the scaling process towards use of the full array. We emphasize the development of a metalized mask for our array that blocks photons from hitting the inter-pixel areas and reflects them onto the TESs. We also present calibration data on detector resolution, electronics noise, and optical alignment

Quasiparticle propagation in aluminum fins and tungsten TES dynamics in the CDMS ZIP detector

Energy Technology Data Exchange (ETDEWEB)

Pyle, M. [Department of Physics, Stanford University, Stanford, CA 94305 (United States)]. E-mail: mpyle1@stanford.edu; Brink, P.L. [Department of Physics, Stanford University, Stanford, CA 94305 (United States); Cabrera, B. [Department of Physics, Stanford University, Stanford, CA 94305 (United States); Castle, J.P. [Department of Physics, Stanford University, Stanford, CA 94305 (United States); Colling, P. [Department of Physics, Stanford University, Stanford, CA 94305 (United States); Chang, C.L. [Department of Physics, Stanford University, Stanford, CA 94305 (United States); Cooley, J. [Department of Physics, Stanford University, Stanford, CA 94305 (United States); Lipus, T. [Department of Physics, Stanford University, Stanford, CA 94305 (United States); Ogburn, R.W. [Department of Physics, Stanford University, Stanford, CA 94305 (United States); Young, B.A. [Department of Physics, Santa Clara University, Santa Clara, CA 95053 (United States)

2006-04-15

With the aim of improving the rejection of surface beta contamination on the CDMS ZIP detector, we have studied the effectiveness of our phonon pulse-shape discrimination by matching a Monte Carlo calculation to data from a 350{mu}m long Al fin with W TESs (Transition-Edge Sensors) at both ends. From this fit, we determined the Al film diffusivity to be D{sub Al}=0.010+/-0.001m{sup 2}/s, the quasiparticle trapping length in the Al fin to be l{sub trap}=180+/-10{mu}m, and the Al to W TES transmission to be f{sub Al/W}=0.002+/-0.001.

Advances in Small Pixel TES-Based X-Ray Microcalorimeter Arrays for Solar Physics and Astrophysics

Science.gov (United States)

Bandler, S. R.; Adams, J. S.; Bailey, C. N.; Busch, S. E.; Chervenak, J. A.; Eckart, M. E.; Ewin, A. E.; Finkbeiner, F. M.; Kelley, R. L.; Kelly, D. P.;

La primera urbanització dels «Abunás». Mamelucs, indis i jesuïtes a les ciutats portugueses de l'Amazònia, segles XVII i XVIII

OpenAIRE

Guzmán, Décio de Alencar

2017-01-01

Entre els anys de 1650 i 1750 de l'època colonial, diverses «llogarets» d'indis, o reduccions indígenes, van ser creades a la vall de l'Amazones pels missioners jesuïtes. El pla dels seus llogarets va ser viable fins a la seva expulsió en 1759. Els llocs d'aquests llogarets variaven i podien desplaçar-se. L'anàlisi d'aquest moment de fundació subratlla els conflictes en la societat colonial, les seves fronteres i la seva vida quotidiana. Es posarà en dubte el paper jugat pels jesuïtes -pares ...

La primera urbanització dels «Abunás». Mamelucs, indis i jesuïtes a les ciutats portugueses de l'Amazònia, segles XVII i XVIII

OpenAIRE

De Alencar Guzmán, Décio

2017-01-01

Entre els anys de 1650 i 1750 de l'època colonial, diverses «llogarets» d'indis, o reduccions indígenes, van ser creades a la vall de l'Amazones pels missioners jesuïtes. El pla dels seus llogarets va ser viable fins a la seva expulsió en 1759. Els llocs d'aquests llogarets variaven i podien desplaçar-se. L'anàlisi d'aquest moment de fundació subratlla els conflictes en la societat colonial, les seves fronteres i la seva vida quotidiana. Es posarà en dubte el paper jugat pels jesuïtes -...

A Wearable EEG-HEG-HRV Multimodal System With Simultaneous Monitoring of tES for Mental Health Management.

Science.gov (United States)

Ha, Unsoo; Lee, Yongsu; Kim, Hyunki; Roh, Taehwan; Bae, Joonsung; Kim, Changhyeon; Yoo, Hoi-Jun

2015-12-01

A multimodal mental management system in the shape of the wearable headband and earplugs is proposed to monitor electroencephalography (EEG), hemoencephalography (HEG) and heart rate variability (HRV) for accurate mental health monitoring. It enables simultaneous transcranial electrical stimulation (tES) together with real-time monitoring. The total weight of the proposed system is less than 200 g. The multi-loop low-noise amplifier (MLLNA) achieves over 130 dB CMRR for EEG sensing and the capacitive correlated-double sampling transimpedance amplifier (CCTIA) has low-noise characteristics for HEG and HRV sensing. Measured three-physiology domains such as neural, vascular and autonomic domain signals are combined with canonical correlation analysis (CCA) and temporal kernel canonical correlation analysis (tkCCA) algorithm to find the neural-vascular-autonomic coupling. It supports highly accurate classification with the 19% maximum improvement with multimodal monitoring. For the multi-channel stimulation functionality, after-effects maximization monitoring and sympathetic nerve disorder monitoring, the stimulator is designed as reconfigurable. The 3.37 × 2.25 mm(2) chip has 2-channel EEG sensor front-end, 2-channel NIRS sensor front-end, NIRS current driver to drive dual-wavelength VCSEL and 6-b DAC current source for tES mode. It dissipates 24 mW with 2 mA stimulation current and 5 mA NIRS driver current.

Winter- and summertime continental influences on tropospheric O3 and CO observed by TES over the western North Atlantic Ocean

Directory of Open Access Journals (Sweden)

R. Talbot

2010-04-01

Full Text Available The distributions of tropospheric ozone (O3 and carbon monoxide (CO, and the synoptic factors regulating these distributions over the western North Atlantic Ocean during winter and summer were investigated using profile retrievals from the Tropospheric Emission Spectrometer (TES for 2004–2006. Seasonal composites of TES retrievals, reprocessed to remove the influence of the a priori on geographical and seasonal structure, exhibited strong seasonal differences. At the 681 hPa level during winter months of December, January and February (DJF the composite O3 mixing ratios were uniformly low (~45 ppbv, but continental export was evident in a channel of enhanced CO (100–110 ppbv flowing eastward from the US coast. In summer months June, July, and August (JJA O3 mixing ratios were variable (45–65 ppbv and generally higher due to increased photochemical production. The summer distribution also featured a channel of enhanced CO (95–105 ppbv flowing northeastward around an anticyclone and exiting the continent over the Canadian Maritimes around 50° N. Offshore O3-CO slopes were generally 0.15–0.20 mol mol−1 in JJA, indicative of photochemical O3 production. Composites for 4 predominant synoptic patterns or map types in DJF suggested that export to the lower free troposphere (681 hPa level was enhanced by the warm conveyor belt airstream of mid-latitude cyclones while stratospheric intrusions increased TES O3 levels at 316 hPa. A major finding in the DJF data was that offshore 681 hPa CO mixing ratios behind cold fronts could be enhanced up to >150 ppbv likely by lofting from the surface via shallow convection resulting from rapid destabilization of cold air flowing over much warmer ocean waters. In JJA composites for 3 map types showed that the general export pattern of the seasonal composites was associated with a synoptic pattern featuring the Bermuda High. However, weak cyclones and frontal troughs could enhance offshore 681 hPa CO

36 CFR 223.47 - Date of completion of permanent road construction.

Science.gov (United States)

2010-07-01

... permanent road construction. 223.47 Section 223.47 Parks, Forests, and Public Property FOREST SERVICE... Conditions and Provisions § 223.47 Date of completion of permanent road construction. (a) The date of completion of permanent road construction obligations as set forth in the Notice of Sale shall be...

Latvijas Komercbanku pasīvās operācijas, to nozīme stabilitātes nodrošināšanā

OpenAIRE

Supe, Gita

2014-01-01

Darba mērķis ir izanalizēt banku pasīvo operāciju nozīmi Latvijas komercbanku stabilitātes nodrošināšanā, kā arī apskatīt, kādi ir banku pasīvo operāciju ietekmējošie faktori, un kā tie ietekmē Latvijas komercbanku darbību. Lai sasniegtu izvirzīto mērķi darba gaitā tika veikti šādi uzdevumi: •raksturotas banku pasīvās operācijas un loma stabilitātes nodrošināšanā; •izpētīti Latvijas komercbanku pasīvi laika periodā 2010. – 2013.g. •izanalizēta banku pasīvo operāciju faktoru ietekm...

Ion Beam Analysis of Iridium-Based TES for Microcalorimeter Detectors

International Nuclear Information System (INIS)

Gomes, M. Ribeiro; Galeazzi, M.; Bogorin, D.; Barradas, N. Pessoa; Alves, E.; Franco, N.

2009-01-01

The physical properties of thin multilayer structures are deeply related to the crystalline quality and stoichiometry of the films. The interface roughness/mixing require a detailed study to determine its influence on the growth processes and surface topography. This is an important aspect when we have lattice mismatch between the superconducting thin-films and the substrates, and a high reliability/reproducibility is required as for large array microcalorimeter applications, as in the case of the MARE experiment, designed to measure the mass of the neutrino with sub-eV sensitivity by measuring the beta decay of 187 Re with cryogenic microcalorimeters. Ion beam analysis techniques are ideal to determine the thickness and concentration profiles of the chemical species in ultra-thin films. Here we present the results on the Ir-based superconducting films deposited on Si-substrates based on systematic investigations of the concentration depth profiles of the multilayer structure using 2.0 MeV 4 He + ions for high resolution Rutherford Backscattering Spectrometry combined with X-Ray Reflectrometry to evaluate the interface/roughness mixing and the crystalline quality in the TES prototypes.

Questioning the Scholarly Discussion around Decentralization in Turkish Education System

Science.gov (United States)

Yildiz, Soner Onder

2016-01-01

From the beginning of Turkish Republic till date, Turkish Education System (TES) has been steered by a handful of politicians and civil servants, who enjoy maximum centralized authority. Over the years, therefore, centralized management has repeatedly been blamed for the deadlocks hampering progress in the TES. Turkish scholars often seem to find…

45 CFR 99.33 - Effective date of Assistant Secretary's decision.

Science.gov (United States)

2010-10-01

... 45 Public Welfare 1 2010-10-01 2010-10-01 false Effective date of Assistant Secretary's decision. 99.33 Section 99.33 Public Welfare DEPARTMENT OF HEALTH AND HUMAN SERVICES GENERAL ADMINISTRATION PROCEDURE FOR HEARINGS FOR THE CHILD CARE AND DEVELOPMENT FUND Posthearing Procedures, Decisions § 99.33...

Linguistic dating of biblical texts

DEFF Research Database (Denmark)

Young, Ian; Rezetko, Robert; Ehrensvärd, Martin Gustaf

Since the beginning of critical scholarship biblical texts have been dated using linguistic evidence. In recent years this has become a controversial topic, especially with the publication of Ian Young (ed.), Biblical Hebrew: Studies in Chronology and Typology (2003). However, until now there has...... been no introduction and comprehensive study of the field. Volume 1 introduces the field of linguistic dating of biblical texts, particularly to intermediate and advanced students of biblical Hebrew who have a reasonable background in the language, having completed at least an introductory course...... in this volume are: What is it that makes Archaic Biblical Hebrew archaic , Early Biblical Hebrew early , and Late Biblical Hebrew late ? Does linguistic typology, i.e. different linguistic characteristics, convert easily and neatly into linguistic chronology, i.e. different historical origins? A large amount...

Evidence of enrichment by individual SN from elemental abundance ratios in the very metal-poor dSph galaxy Boötes I

Science.gov (United States)

Feltzing, S.; Eriksson, K.; Kleyna, J.; Wilkinson, M. I.

2009-12-01

Aims. We establish the mean metallicity from high-resolution spectroscopy for the recently found dwarf spheroidal galaxy Boötes I and test whether it is a common feature for ultra-faint dwarf spheroidal galaxies to show signs of inhomogeneous chemical evolution (e.g. as found in the Hercules dwarf spheroidal galaxy). Methods: We analyse high-resolution, moderate signal-to-noise spectra for seven red giant stars in the Boötes I dSph galaxy using standard abundance analysis techniques. In particular, we assume local thermodynamic equilibrium and employ spherical model atmospheres and codes that take the sphericity of the star into account when calculating the elemental abundances. Results: We confirm previous determinations of the mean metallicity of the Boötes I dwarf spheroidal galaxy to be -2.3 dex. Whilst five stars are clustered around this metallicity, one is significantly more metal-poor, at -2.9 dex, and one is more metal-rich at, -1.9 dex. Additionally, we find that one of the stars, Boo-127, shows an atypically high [Mg/Ca] ratio, indicative of stochastic enrichment processes within the dSph galaxy. Similar results have previously only been found in the Hercules and Draco dSph galaxies and appear, so far, to be unique to this type of galaxy. The data presented herein were obtained at the W.M. Keck Observatory, which is operated as a scientific partnership among the California Institute of Technology, the University of California and the National Aeronautics and Space Administration. The Observatory was made possible by the generous financial support of the W.M. Keck Foundation.

Mineral Composition and Abundance of the Rocks and Soils at Gusev and Meridiani from the Mars Exploration Rover Mini-TES Instruments

Science.gov (United States)

Christensen, P. R.; Wyatt, M. B.; Glotch, T. D.; Rogers, A. D.; Anwar, S.; Arvidson, R. E.; Bandfield, J. L.; Blaney, D. L.; Budney, C.; Calvin, W. M.

2005-01-01

The Miniature Thermal Emission Spectrometer (Mini-TES) has provided remote measurements of mineralogy, thermophysical properties, and atmospheric temperature profile and composition of the outcrops, rocks, spherules, and soils surrounding the Spirit and Opportunity Rovers. The mineralogy of volcanic rocks provides insights into the composition of the source regions and the nature of martian igneous processes. Carbonates, sulfates, evaporites, and oxides provide information on the role of water in the surface evolution. Oxides, such as crystalline hematite, provide insight into aqueous weathering processes, as would the occurrence of clay minerals and other weathering products. Diurnal temperature measurements can be used to determine particle size and search for the effects of sub-surface layering, which in turn provide clues to the origin of surficial materials through rock disintegration, aeolian transport, atmospheric fallout, or induration. In addition to studying the surface properties, Mini-TES spectra have also been used to determine the temperature profile in the lower boundary layer, providing evidence for convective activity, and have determined the seasonal trends in atmospheric temperature and dust and cloud opacity.

High count-rate study of two TES x-ray microcalorimeters with different transition temperatures

Science.gov (United States)

Lee, Sang-Jun; Adams, Joseph S.; Bandler, Simon R.; Betancourt-Martinez, Gabriele L.; Chervenak, James A.; Eckart, Megan E.; Finkbeiner, Fred M.; Kelley, Richard L.; Kilbourne, Caroline A.; Porter, Frederick S.; Sadleir, John E.; Smith, Stephen J.; Wassell, Edward J.

2017-10-01

We have developed transition-edge sensor (TES) microcalorimeter arrays with high count-rate capability and high energy resolution to carry out x-ray imaging spectroscopy observations of various astronomical sources and the Sun. We have studied the dependence of the energy resolution and throughput (fraction of processed pulses) on the count rate for such microcalorimeters with two different transition temperatures (T c). Devices with both transition temperatures were fabricated within a single microcalorimeter array directly on top of a solid substrate where the thermal conductance of the microcalorimeter is dependent upon the thermal boundary resistance between the TES sensor and the dielectric substrate beneath. Because the thermal boundary resistance is highly temperature dependent, the two types of device with different T cs had very different thermal decay times, approximately one order of magnitude different. In our earlier report, we achieved energy resolutions of 1.6 and 2.3 eV at 6 keV from lower and higher T c devices, respectively, using a standard analysis method based on optimal filtering in the low flux limit. We have now measured the same devices at elevated x-ray fluxes ranging from 50 Hz to 1000 Hz per pixel. In the high flux limit, however, the standard optimal filtering scheme nearly breaks down because of x-ray pile-up. To achieve the highest possible energy resolution for a fixed throughput, we have developed an analysis scheme based on the so-called event grade method. Using the new analysis scheme, we achieved 5.0 eV FWHM with 96% throughput for 6 keV x-rays of 1025 Hz per pixel with the higher T c (faster) device, and 5.8 eV FWHM with 97% throughput with the lower T c (slower) device at 722 Hz.

A Protection Motivation Theory application to date rape education.

Science.gov (United States)

Singh, Shweta; Orwat, John; Grossman, Susan

2011-12-01

Date rape risk communication is a key component of education-based Date Rape Prevention Programs, common across colleges. In such programs, risk assessment in date rape is approached cautiously in order to avoid a tone of "victim blaming." Since it is important in the assessment of any risk to understand the surrounding social context of the risky situation and the individual's unique relationship with that social context, this study examines Protection Motivation Theory as it applies to handling the risk of date rape without victim blaming. The paper links individual personality and social contexts with risk communication. The study sample comprised 367 undergraduate women enrolled in a large Southern Public University. The study examines the relationships between dating activity, social competency, and type of information provided with the dependents variables of date rape related protection behavior (intent), belief, and knowledge. A factorial multiple analysis of covariance analysis found that the dependent variables had a significant relationship with aspects of social competency and dating activity. The exposure to varying information about date rape was not significantly related to the dependent variables of date rape-related protection behavior (intent), belief, and knowledge. The identification of social competency and dating activity status as protective factors in this study makes a significant contribution to the practice and research efforts in date rape education.

47 CFR 61.14 - Method of filing publications.

Science.gov (United States)

2010-10-01

... 47 Telecommunication 3 2010-10-01 2010-10-01 false Method of filing publications. 61.14 Section 61...) TARIFFS Rules for Electronic Filing § 61.14 Method of filing publications. (a) Publications filed... date of a publication received by the Electronic Tariff Filing System will be determined by the date...

An Explanatory Model of Dating Violence Risk Factors in Spanish Adolescents.

Science.gov (United States)

Aizpitarte, Alazne; Alonso-Arbiol, Itziar; Van de Vijver, Fons J R

2017-12-01

Dating violence is a serious public health issue that needs further understanding in terms of risk factors that may be involved in it. The main goal of this study was to test a mediational model of dating violence risk factors. The sample was composed of 477 secondary and college students from Spain (59% females). A dynamic developmental explanatory model considering aggressiveness, insecure attachment, interparental conflict, and peer dating violence was tested using a multigroup structural equation model. Aggressiveness partially mediated the relation between anxious attachment and dating violence and fully mediated the association between interparental conflict resolution and dating violence. Furthermore, perceived peer dating violence was a direct predictor of dating violence. Implications for prevention and intervention plans are discussed. © 2017 The Authors. Journal of Research on Adolescence © 2017 Society for Research on Adolescence.

Beyond Correlates: A Review of Risk and Protective Factors for Adolescent Dating Violence Perpetration

Science.gov (United States)

Vagi, Kevin J.; Rothman, Emily F.; Latzman, Natasha E.; Tharp, Andra Teten; Hall, Diane M.; Breiding, Matthew J.

2013-01-01

Dating violence is a serious public health problem. In recent years, the U.S. Centers for Disease Control and Prevention and other entities have made funding available to community based agencies for dating violence prevention. Practitioners who are tasked with developing dating violence prevention strategies should pay particular attention to…

Nebanku kredītdevēju ”SMScredit” un ”InCREDIT GROUP” lojalitātes programmas un to novērtējums

OpenAIRE

Birnbauma, Egija

2016-01-01

Bakalaura darba temats ir „Nebanku kredītdevēju ”SMScredit” un ”InCREDIT GROUP” lojalitātes programmas un to novērtējums.” Darba mērķis ir lojalitātes programmu komunikācijas kanālu vērtējums un klientu vērtējums par programmu noderīgumu, to priekšrocībām un vai programmu darbības principi klientiem ir saprotami. Darbs sastāv no trīs daļām: teorētiskās, metodoloģiskās un empīriskās daļas. Teorētiskajā daļā tiek pētīta literatūra par mārketingu, integrētā mārketinga komunikāciju, patērēt...

Studentu identitātes prezentēšana sociālajos tīklos: “draugiem.lv” un “facebook.com” gadījumu analīze

OpenAIRE

Bajāre, Regija

2014-01-01

Bakalaura darba tēma ir studentu identitātes prezentēšana sociālajos tīklos: "draugiem.lv" un "facebook.com" gadījumu analīze. Šī bakalaura darba mērķis ir noskaidrot Latvijas studentu identitātes prezentēšanu sociālajos tīklos draugiem.lv un facebook.com. Šī darba ietvaros ir izstrādāti trīs pētnieciskie jautājumi: kādu informāciju studenti prezentē savos profilos, kādi ir sevis prezentēšanas paradumi, vai studentu prezentētā identitāte atšķiras portālā draugiem.lv no facebook.com? Teorij...

A feedforward IMC structure for controlling the charging temperature of a TES system of a solar cooker

International Nuclear Information System (INIS)

Mawire, A.; McPherson, M.

2008-01-01

A feedforward internal model control (IMC) structure for controlling and maintaining the outlet charging temperature of a thermal energy storage (TES) system of a solar cooker is presented. The TES system consists of a packed pebble bed in thermal contact with a heat transfer oil contained in a storage tank. An electrical hot plate simulates the collector/concentrator which heats up the oil circulating in a hollow copper spiral coil thus charging the storage. A model for the collector/concentrator system is developed to enable simulation of the feedforward IMC structure. Using a Simulink block model, the simulation results reveal that a feedforward IMC structure performs better than a feedforward structure. The feedforward IMC structure is tested experimentally and the performance of the control structure is acceptable within a few degrees of the set temperatures. Experimental results are also compared with the simulation results. The simulated responses are found to relate closely to the experimental ones and any discrepancies between the two are discussed. Furthermore, the feedforward IMC structure is also compared experimentally with a combined feedforward and PID feedback structure. Results of the comparison indicate that the feedforward IMC structure performs better than the combined feedforward and PID feedback structure. The thermal profile of the storage during the charging experiment with the feedforward IMC structure is also presented and the results obtained from the storage profile indicate that the storage tank is thermally stratified

Threshold electrical stimulation (TES) in ambulant children with CP: a randomized double-blind placebo-controlled clinical trial

DEFF Research Database (Denmark)

Dali, Christine í; Hansen, Flemming Juul; Pedersen, Søren Anker

2002-01-01

A randomized double-blind placebo-controlled clinical trial was carried out to determine whether a group of stable children with cerebral palsy (36 males, 21 females; mean age 10 years 11 months, range 5 to 18 years) would improve their motor skills after 12 months of threshold electrical...... stimulation (TES). Two thirds received active and one third received inactive stimulators. For the primary outcome we constructed a set of plausible motor function tests and studied the change in summary indices of the performance measurements. Tests were videotaped and assessed blindly to record qualitative...

Solutions Network Formulation Report. Integration of OMI and TES Aerosol Products into the EPA Regional Planning Organizations' FASTNET Aerosol Tracking and Analysis Tool

Science.gov (United States)

Knowlton, Kelly; Andrews, Jane C.

2006-01-01

(Ozone Monitoring Instrument) and TES (Tropospheric Emission Spectrometer) air quality data for the RPOs by comparing OMI and TES data with ground-based data that are acquired during identified episodes of air pollution. The air quality data from OMI and TES are of different spectral ranges than data from satellites currently included in FASTNET, giving them potential advantages over the existing satellites. If the OMI and TES data are shown to be useful to the RPOs, they would then be integrated into the FASTNET DST for use on an operational basis.

Initial results from the Mini-TES experiment in Gusev Crater from the Spirit Rover

Science.gov (United States)

Christensen, P. R.; Ruff, S. W.; Fergason, R. L.; Knudson, A. T.; Anwar, S.; Arvidson, R. E.; Bandfield, J. L.; Blaney, D. L.; Budney, C.; Calvin, W. M.;

Constraining the 0-20 km Vertical Profile of Water Vapor in the Martian Atmosphere with MGS-TES Limb Sounding

Science.gov (United States)

McConnochie, T. H.; Smith, M. D.; McDonald, G. D.

2016-12-01

The vertical profile of water vapor in the lower atmosphere of Mars is a crucial but poorly-measured detail of the water cycle. Most of our existing water vapor data sets (e.g. Smith, 2002, JGR 107; Smith et al., 2009, JGR 114; Maltagliati et al., 2011, Icarus 213) rely on the traditional assumption of uniform mass mixing from the surface up to a saturation level, but GCM models (Richardson et al., 2002, JGR 107; Navarro et al., 2014, JGR 119) imply that this is not the case in at least some important seasons and locations. For example at the equator during northern summer the water vapor mixing ratio in aforementioned GCMs increases upwards by a factor of two to three in the bottom scale height. This might influence the accuracy of existing precipitable water column (PWC) data sets. Even if not, the correct vertical distribution is critical for determining the extent to which high-altitude cold trapping interferes with inter-hemispheric transport, and its details in the lowest scale heights will be a critical test of the accuracy of modeled water vapor transport. Meanwhile attempts to understand apparent interactions of water vapor with surface soils (e.g. Ojha et al. 2015, Nature Geoscience 8; Savijärvi et al., 2016, Icarus 265) need an estimate for the amount of water vapor in the boundary layer, and existing PWC data sets can't provide this unless the lower atmospheric vertical distribution is known or constrained. Maltagliati et al. (2013, Icarus 223) have obtained vertical profiles of water vapor at higher altitudes with SPICAM on Mars Express, but these are commonly limited to altitudes greater 20 km and they never extend below 10 km. We have previously used Mars Global Surveyor (MGS) Thermal Emission Spectrometer (TES) limb-sounding to measure the vertical profile of water vapor (e.g. McConnochie and Smith, 2009, Fall AGU #P54B-06), but these preliminary results were clearly not quantitatively accurate in the lower atmosphere. We will present improved TES

20 CFR 410.687a - Effective date.

Science.gov (United States)

2010-04-01

....686a, 410.686b, 410.686c, 410.686d, and 410.686e, shall be effective upon publication in the Federal... rendered in connection with those claims for which a fee has not been fully paid before this effective date, notwithstanding the fact that fee contracts for such services may have been entered into, or services rendered...

Profiles of CH4, HDO, H2O, and N2O with improved lower tropospheric vertical resolution from Aura TES radiances

Directory of Open Access Journals (Sweden)

D. Noone

2012-02-01

Full Text Available Thermal infrared (IR radiances measured near 8 microns contain information about the vertical distribution of water vapor (H2O, the water isotopologue HDO, and methane (CH4, key gases in the water and carbon cycles. Previous versions (Version 4 or less of the TES profile retrieval algorithm used a "spectral-window" approach to minimize uncertainty from interfering species at the expense of reduced vertical resolution and sensitivity. In this manuscript we document changes to the vertical resolution and uncertainties of the TES version 5 retrieval algorithm. In this version (Version 5, joint estimates of H2O, HDO, CH4 and nitrous oxide (N2O are made using radiances from almost the entire spectral region between 1100 cm−1 and 1330 cm−1. The TES retrieval constraints are also modified in order to better use this information. The new H2O estimates show improved vertical resolution in the lower troposphere and boundary layer, while the new HDO/H2O estimates can now profile the HDO/H2O ratio between 925 hPa and 450 hPa in the tropics and during summertime at high latitudes. The new retrievals are now sensitive to methane in the free troposphere between 800 and 150 mb with peak sensitivity near 500 hPa; whereas in previous versions the sensitivity peaked at 200 hPa. However, the upper troposphere methane concentrations are biased high relative to the lower troposphere by approximately 4% on average. This bias is likely related to temperature, calibration, and/or methane spectroscopy errors. This bias can be mitigated by normalizing the CH4 estimate by the ratio of the N2O estimate relative to the N2O prior, under the assumption that the same systematic error affects both the N2O and CH4 estimates. We demonstrate that applying this ratio theoretically reduces the CH4 estimate for non-retrieved parameters that jointly affect both the N2O and CH4 estimates. The relative upper troposphere to lower troposphere bias is approximately 2.8% after this bias

Electron-Beam Deposition of Superconducting Molybdenum Thin Films for the Development of Mo/Au TES X-Ray Microcalorimeter

Science.gov (United States)

Finkbeiner, Fred Michael; Adams, Joseph S.; Bandler, Simon R.; Betancour-Martinez, Gabriele L.; Brown, Ari David; Chang, Meng-Ping; Chervenak, James A.; Chiao, Meng P.; Datesman, Aaron; Eckart, Megan E.;

PENGARUH PENGUMUMAN DIVIDEN TERHADAP PERUBAHAN HARGA SAHAM (RETURN SEBELUM DAN SESUDAH EX -DIVIDEND DATE DI

Directory of Open Access Journals (Sweden)

R. Andi Sularso

2003-01-01

yaitu periode estimasi selama 90 hari dan periode peristiwa selama 30 hari termasuk 15 hari sebelum dan sesudah event. Metode yang digunakan dalam penelitian ini adalah event study yang akan mengamati pergerakan harga saham di pasar modal. Untuk menguji adanya reaksi harga dilakukan tes abnormal return selama periode peristiwa dengan analisis perhitungan berdasarkan konsep model-model keseimbangan yaitu Capital Asset Pricing Model (CAPM dan dengan melakukan pengujian abnormal return terhadap dividen naik dan dividen turun pada saat ex-dividend date. Hasil penelitian menunjukkan bahwa pada tingkat signifikansi 10% ada 2 hari kerja yang masih menghasilkan abnormal return yang signifikan pada dividen naik, yaitu hari ke 4 sebelum event date sebesar -0,001102 atau sekitar 0,1% dan pada hari ke 5 setelah event date sebesar -0,032184 atau sekitar 3%. Sedangkan pada dividen turun menunjukkan bahwa ada 3 hari bursa yang masih memberikan abnormal return yang signifikan, yaitu pada hari ke 13 dan pada hari ke 2 sebelum event date sebesar 0,028263 atau sekitar 2% dan 0,0166274 atau sekitar 1%, serta pada hari ke 5 setelah event date sebesar 0,029105 atau sekitar 3%. Dari hasil penelitian disimpulkan bahwa harga saham bereaksi negatif terhadap informasi pengumuman dividen naik pada saat ex-dividen date, dan bereaksi positif terhadap informasi pengumuman dividen turun pada saat ex-dividend date. Kata kunci: Ex-dividend date, return, CAPM.

The New York Head-A precise standardized volume conductor model for EEG source localization and tES targeting.

Science.gov (United States)

Huang, Yu; Parra, Lucas C; Haufe, Stefan

2016-10-15

In source localization of electroencephalograpic (EEG) signals, as well as in targeted transcranial electric current stimulation (tES), a volume conductor model is required to describe the flow of electric currents in the head. Boundary element models (BEM) can be readily computed to represent major tissue compartments, but cannot encode detailed anatomical information within compartments. Finite element models (FEM) can capture more tissue types and intricate anatomical structures, but with the higher precision also comes the need for semi-automated segmentation, and a higher computational cost. In either case, adjusting to the individual human anatomy requires costly magnetic resonance imaging (MRI), and thus head modeling is often based on the anatomy of an 'arbitrary' individual (e.g. Colin27). Additionally, existing reference models for the human head often do not include the cerebro-spinal fluid (CSF), and their field of view excludes portions of the head and neck-two factors that demonstrably affect current-flow patterns. Here we present a highly detailed FEM, which we call ICBM-NY, or "New York Head". It is based on the ICBM152 anatomical template (a non-linear average of the MRI of 152 adult human brains) defined in MNI coordinates, for which we extended the field of view to the neck and performed a detailed segmentation of six tissue types (scalp, skull, CSF, gray matter, white matter, air cavities) at 0.5mm(3) resolution. The model was solved for 231 electrode locations. To evaluate its performance, additional FEMs and BEMs were constructed for four individual subjects. Each of the four individual FEMs (regarded as the 'ground truth') is compared to its BEM counterpart, the ICBM-NY, a BEM of the ICBM anatomy, an 'individualized' BEM of the ICBM anatomy warped to the individual head surface, and FEMs of the other individuals. Performance is measured in terms of EEG source localization and tES targeting errors. Results show that the ICBM-NY outperforms

Producción y evaluación del antígeno recombinante TES-30 de Toxocara canis para el inmunodiagnóstico de toxocariasis

Directory of Open Access Journals (Sweden)

Ana M. Olave

2016-03-01

Conclusiones. Los datos presentados respaldan la utilidad del immunoblot rTES-30 para la confirmación de los posibles positivos por ELISA, no solo en los estudios epidemiológicos, sino también, como candidato para el desarrollo de pruebas diagnósticas de la toxocariasis ocular en Colombia.

Når to mennesker møtes: Hvordan kan sykepleier møte pasienter med selvskadende atferd

OpenAIRE

Eikrem, Mats Ulstein

2017-01-01

Høgskulen på Vestlandet Institutt for sykepleie Avdeling for helsefag Tittel: Når to mennesker møtes Bakgrunn for val av tema: Bakgrunnen for tema er mine egne erfaringer innenfor legevakts arbeid, og de observasjonene jeg har tilnærmet meg der. Noe som har ført til at jeg opplever at sykepleiere ikke skaper nok rom for pasienter med selvskadende atferd. Jeg ønsker derfor å lære mer om hvordan man bør møte denne pasientgruppen på en god måte. Problemstilling: Hvordan kan syk...

Piedošanas, subjektīvās labklājības un uztvertās attiecību kvalitātes saistība

OpenAIRE

Plauča, Ilze

2010-01-01

Darbā tiek apskatīti piedošanas, uztvertās attiecību kvalitātes un subjektīvās labklājības saistība. Piedošana tiek aplūkota M.Makkuloka (McCullough) izstrādātā modeļa ietvaros, ka piedošana ir atriebības, izvairīšanās un labvēlības motivācijas izmaiņu komplekss. Uztvertās attiecību kvalitātes komponentes ir apmierinātība ar attiecībām , nodošanās, intimitāte jeb tuvība, uzticēšanās, kaislība un mīlestība (Fletcher et al). Subjektīvās labklājības modelis tiek aplūkots Dīnera (Diener) teor...

42 CFR 414.510 - Laboratory date of service for clinical laboratory and pathology specimens.

Science.gov (United States)

2010-10-01

... and pathology specimens. 414.510 Section 414.510 Public Health CENTERS FOR MEDICARE & MEDICAID... date of service for clinical laboratory and pathology specimens. The date of service for either a clinical laboratory test or the technical component of physician pathology service is as follows: (a...

The comparison of absolute dating (Radiocarbon dating) and relative dating of Pringapus and Gondosuli temples

International Nuclear Information System (INIS)

Faisal, W; Arumbinang, H; Taftazani, A; Widayati, S; Sumiyatno; Suhardi

1996-01-01

The absolute dating (radiocarbon, 14 C dating) and relative dating of Pringapus and Gondosuli temples in Temanggung regency (district) of Central Java Province have been carried out. The field sampling was done especially with the purpose to obtain vertical data, so that excavation method was adopted in the case. The main data were the ecofacts of organic habitation such as bones, woods, charcoals, shells, and paper artefacts. The artefacts data were used as a comparison. The comparative data analysis were conducted at Yogyakarta archaeological Department Laboratory, thus included dating of artefacts which were performed according to archaeological analysis procedures, generally based on the attributes attached to the artefacts, whereas the absolute dating of charcoal samples were performed in the Radiocarbon Dating Laboratory at Yogyakarta Nuclear Research Centre. Based on the relative dating of epigraphy content on the andesit rock from Gondosuli Temple which showed the year of 754 Saka or 832 AD, the Pringapus Temple was estimated to be built in the 850 AD. According to the absolute dating (Radiocarbon Dating with delta 13 C and tree ring corrections) the age for Gondosuli temple based on GDS/LU-2/Spit-7 samples is (384 -602) AD and from GDS/LU-2/Spit-8 = (452 - 652) AD. With these significant differences in the results obtained, it can be concluded that culture environment where the sample were collected already existed before the temple was built. Further investigation is still required

The influence of online posting dates on the bibliometric indicators of scientific articles

Directory of Open Access Journals (Sweden)

Mercedes Echeverría

2017-09-01

Full Text Available This article analyses the difference in timing between the online availability of articles and their corresponding print publication and how it affects two bibliometric indicators: Journal Impact Factor (JIF and Immediacy Index. This research examined 18,526 articles, the complete collection of articles and reviews published by a set of 61 journals on Urology and Nephrology in 2013 and 2014. The findings suggest that Advance Online Publication (AOP accelerates the citation of articles and affects the JIF and Immediacy Index values. Regarding the JIF values, the comparison between journals with or without AOP showed statistically significant differences (P=0.001, Mann-Whitney U test. The Spearman’s correlation between the JIF and the median online-to-print publication delay was not statistically significant. As to the Immediacy Index, a significant Spearman’s correlation (rs=0.280, P=0.029 was found regarding the median online-to-print publication delays for journals published in 2014, although no statistically significant correlation was found for those published in 2013. Most journals examined (n=52 out of 61 published their articles in AOP. The analysis also showed different publisher practices: eight journals did not include the online posting dates in the full-text and nine journals published articles showing two different online posting dates--the date provided on the journal website and another provided by Elsevier’s Science Direct. These practices suggest the need for transparency and standardization of the AOP dates of scientific articles for calculating bibliometric indicators for journals.

Publication of the bulletin

CERN Document Server

DSU Unit

2008-01-01

The final edition (Nos 51-52/2008 and 1-2/2009) of the last Weekly Bulletin of the year will be published on Friday 12 December and will cover events at CERN from 15 December 2008 to 12 January 2009. Announcements for publication in this issue should reach the Publication Section (Communication group) or the Staff Association, as appropriate by noon, on Tuesday 9 December. Bulletin publication 2009 The table below lists the 2009 publication dates for the paper version of the Bulletin and the corresponding deadlines for the submission of announcements. Please note that all announcements must be submitted by 12.00 midday on Tuesdays at the latest. Bulletin No. Week number Submission of announcements (before 12.00 midday) Publication date 3-4 Tuesday 6 January Monday 12 January 5-6 Tuesday 20 January Monday 26 January 7-8 Tuesday 3 February Monday 9 February 9-10 Tuesday 17 Februar...

: tous les projets | Page 482 | CRDI - Centre de recherches pour le ...

International Development Research Centre (IDRC) Digital Library (Canada)

information et de la communication (TIC) à large bande dans certains pays des côtes est et ouest de l'Afrique. Date de début : 1 janvier 2008. End Date: 30 juin 2010. Sujet: TELECOMMUNICATIONS NETWORKS, RESEARCH NETWORKS.

Dating Violence

Science.gov (United States)

... for Teens / Dating Violence Bulletins for Teens: Dating Violence What is it? If you are a victim ... often. If You Are a Victim of Dating Violence, You Might… Think it's your fault. Feel angry, ...

The Associations between Substance Use, Sexual Behaviors, Bullying, Deviant Behaviors, Health, and Cyber Dating Abuse Perpetration

Science.gov (United States)

Van Ouytsel, Joris; Torres, Elizabeth; Choi, Hye Jeong; Ponnet, Koen; Walrave, Michel; Temple, Jeff R.

2017-01-01

Dating violence is an important public health concern and is considered to be a form of school violence. While digital technologies have enabled perpetrators of dating violence to target their victims online (cyber dating abuse), little is known about how this form of perpetration relates to specific adolescent risk behaviors. This brief research…

ELEMENTAL ABUNDANCES AND THEIR IMPLICATIONS FOR THE CHEMICAL ENRICHMENT OF THE BOÖTES I ULTRAFAINT GALAXY

International Nuclear Information System (INIS)

Gilmore, Gerard; Norris, John E.; Yong, David; Monaco, Lorenzo; Wyse, Rosemary F. G.; Geisler, D.

2013-01-01

We present a double-blind analysis of high-dispersion spectra of seven red giant members of the Boötes I ultrafaint dwarf spheroidal galaxy, complemented with re-analysis of a similar spectrum of an eighth-member star. The stars cover [Fe/H] from –3.7 to –1.9 and include a CEMP-no star with [Fe/H] = –3.33. We conclude from our chemical abundance data that Boötes I has evolved as a self-enriching star-forming system, from essentially primordial initial abundances. This allows us uniquely to investigate the place of CEMP-no stars in a chemically evolving system, in addition to limiting the timescale of star formation. The elemental abundances are formally consistent with a halo-like distribution, with enhanced mean [α/Fe] and small scatter about the mean. This is in accord with the high-mass stellar initial mass function in this low-stellar-density, low-metallicity system being indistinguishable from the present-day solar neighborhood value. There is a non-significant hint of a decline in [α/Fe] with [Fe/H]; together with the low scatter, this requires low star formation rates, allowing time for supernova ejecta to be mixed over the large spatial scales of interest. One star has very high [Ti/Fe], but we do not confirm a previously published high value of [Mg/Fe] for another star. We discuss the existence of CEMP-no stars, and the absence of any stars with lower CEMP-no enhancements at higher [Fe/H], a situation that is consistent with knowledge of CEMP-no stars in the Galactic field. We show that this observation requires there be two enrichment paths at very low metallicities: CEMP-no and 'carbon-normal'.

42 CFR 488.440 - Civil money penalties: Effective date and duration of penalty.

Science.gov (United States)

2010-10-01

... 42 Public Health 5 2010-10-01 2010-10-01 false Civil money penalties: Effective date and duration... Civil money penalties: Effective date and duration of penalty. (a)(1) The per day civil money penalty... by CMS or the State. (2) A civil money penalty for each instance of noncompliance is imposed in a...

Setting a date

International Nuclear Information System (INIS)

Moore, Glenis.

1987-01-01

Dating techniques are discussed and explained. The age range and sensitivity of different techniques are given. Potassium/argon dating, amino-acid dating, radiocarbon dating, dendrochronology, thermoluminescence and geomagnetic field dating are all mentioned. Each technique is explained and a brief history given. The techniques and equipment used by the British Museum, and some examples of archaeological articles dated are mentioned. (UK)

Global estimates of CO sources with high resolution by adjoint inversion of multiple satellite datasets (MOPITT, AIRS, SCIAMACHY, TES

Directory of Open Access Journals (Sweden)

M. Kopacz

2010-02-01

Full Text Available We combine CO column measurements from the MOPITT, AIRS, SCIAMACHY, and TES satellite instruments in a full-year (May 2004–April 2005 global inversion of CO sources at 4°×5° spatial resolution and monthly temporal resolution. The inversion uses the GEOS-Chem chemical transport model (CTM and its adjoint applied to MOPITT, AIRS, and SCIAMACHY. Observations from TES, surface sites (NOAA/GMD, and aircraft (MOZAIC are used for evaluation of the a posteriori solution. Using GEOS-Chem as a common intercomparison platform shows global consistency between the different satellite datasets and with the in situ data. Differences can be largely explained by different averaging kernels and a priori information. The global CO emission from combustion as constrained in the inversion is 1350 Tg a⁻¹. This is much higher than current bottom-up emission inventories. A large fraction of the correction results from a seasonal underestimate of CO sources at northern mid-latitudes in winter and suggests a larger-than-expected CO source from vehicle cold starts and residential heating. Implementing this seasonal variation of emissions solves the long-standing problem of models underestimating CO in the northern extratropics in winter-spring. A posteriori emissions also indicate a general underestimation of biomass burning in the GFED2 inventory. However, the tropical biomass burning constraints are not quantitatively consistent across the different datasets.

Optimal Extraction of Tropospheric Ozone Column by Simultaneous Use of OMI and TES Data and the Surface Temperature

Science.gov (United States)

Mobasheri, M. R.; Shirazi, H.

2015-12-01

This article aims to increase the accuracy of Ozone data from tropospheric column (TOC) of the OMI and TES satellite instruments. To validate the estimated amount of satellite data, Ozonesonde data is used. The vertical resolution in both instruments in the tropospheric atmosphere decreases so that the degree of freedom signals (DOFS) on the average for TES is reduced to 2 and for OMI is reduced to1. But this decline in accuracy in estimation of tropospheric ozone is more obvious in urban areas so that estimated ozone in both instruments alone in non-urban areas show a high correlation with Ozonesonde. But in urban areas this correlation is significantly reduced, due to the ozone pre-structures and consequently an increase on surface-level ozone in urban areas. In order to improve the accuracy of satellite data, the average tropospheric ozone data from the two instruments were used. The aim is to increase the vertical resolution of ozone profile and the results clearly indicate an increase in correlations, but nevertheless the satellite data have a positive bias towards the earth data. To reduce the bias, with the solar flux and nitrogen dioxide values and surface temperatures are calculated as factors of ozone production on the earth's surface and formation of mathematical equations based on coefficients for each of the mentioned values and multiplication of these coefficients by satellite data and repeated comparison with the values of Ozonesonde, the results showed that bias in urban areas is greatly reduced.

SeTES, a Self-Teaching Expert System for the analysis, design and prediction of gas production from shales and a prototype for a new generation of Expert Systems in the Earth Sciences

Science.gov (United States)

Kuzma, H. A.; Boyle, K.; Pullman, S.; Reagan, M. T.; Moridis, G. J.; Blasingame, T. A.; Rector, J. W.; Nikolaou, M.

2010-12-01

A Self Teaching Expert System (SeTES) is being developed for the analysis, design and prediction of gas production from shales. An Expert System is a computer program designed to answer questions or clarify uncertainties that its designers did not necessarily envision which would otherwise have to be addressed by consultation with one or more human experts. Modern developments in computer learning, data mining, database management, web integration and cheap computing power are bringing the promise of expert systems to fruition. SeTES is a partial successor to Prospector, a system to aid in the identification and evaluation of mineral deposits developed by Stanford University and the USGS in the late 1970s, and one of the most famous early expert systems. Instead of the text dialogue used in early systems, the web user interface of SeTES helps a non-expert user to articulate, clarify and reason about a problem by navigating through a series of interactive wizards. The wizards identify potential solutions to queries by retrieving and combining together relevant records from a database. Inferences, decisions and predictions are made from incomplete and noisy inputs using a series of probabilistic models (Bayesian Networks) which incorporate records from the database, physical laws and empirical knowledge in the form of prior probability distributions. The database is mainly populated with empirical measurements, however an automatic algorithm supplements sparse data with synthetic data obtained through physical modeling. This constitutes the mechanism for how SeTES self-teaches. SeTES’ predictive power is expected to grow as users contribute more data into the system. Samples are appropriately weighted to favor high quality empirical data over low quality or synthetic data. Finally, a set of data visualization tools digests the output measurements into graphical outputs.

Readout of a 176 pixel FDM system for SAFARI TES arrays

Science.gov (United States)

Hijmering, R. A.; den Hartog, R.; Ridder, M.; van der Linden, A. J.; van der Kuur, J.; Gao, J. R.; Jackson, B.

2016-07-01

In this paper we present the results of our 176-pixel prototype of the FDM readout system for SAFARI, a TES-based focal-plane instrument for the far-IR SPICA mission. We have implemented the knowledge obtained from the detailed study on electrical crosstalk reported previously. The effect of carrier leakage is reduced by a factor two, mutual impedance is reduced to below 1 nH and mutual inductance is removed. The pixels are connected in stages, one quarter of the array half of the array and the full array, to resolve intermediate technical issues. A semi-automated procedure was incorporated to find all optimal settings for all pixels. And as a final step the complete array has been connected and 132 pixels have been read out simultaneously within the frequency range of 1-3.8MHz with an average frequency separation of 16kHz. The noise was found to be detector limited and was not affected by reading out all pixels in a FDM mode. With this result the concept of using FDM for multiplexed bolometer read out for the SAFARI instrument has been demonstrated.

Transposable Elements in Human Cancer: Causes and Consequences of Deregulation

Science.gov (United States)

Anwar, Sumadi Lukman; Wulaningsih, Wahyu; Lehmann, Ulrich

2017-01-01

Transposable elements (TEs) comprise nearly half of the human genome and play an essential role in the maintenance of genomic stability, chromosomal architecture, and transcriptional regulation. TEs are repetitive sequences consisting of RNA transposons, DNA transposons, and endogenous retroviruses that can invade the human genome with a substantial contribution in human evolution and genomic diversity. TEs are therefore firmly regulated from early embryonic development and during the entire course of human life by epigenetic mechanisms, in particular DNA methylation and histone modifications. The deregulation of TEs has been reported in some developmental diseases, as well as for different types of human cancers. To date, the role of TEs, the mechanisms underlying TE reactivation, and the interplay with DNA methylation in human cancers remain largely unexplained. We reviewed the loss of epigenetic regulation and subsequent genomic instability, chromosomal aberrations, transcriptional deregulation, oncogenic activation, and aberrations of non-coding RNAs as the potential mechanisms underlying TE deregulation in human cancers. PMID:28471386

Transposable Elements in Human Cancer: Causes and Consequences of Deregulation

Directory of Open Access Journals (Sweden)

Sumadi Lukman Anwar

2017-05-01

Full Text Available Transposable elements (TEs comprise nearly half of the human genome and play an essential role in the maintenance of genomic stability, chromosomal architecture, and transcriptional regulation. TEs are repetitive sequences consisting of RNA transposons, DNA transposons, and endogenous retroviruses that can invade the human genome with a substantial contribution in human evolution and genomic diversity. TEs are therefore firmly regulated from early embryonic development and during the entire course of human life by epigenetic mechanisms, in particular DNA methylation and histone modifications. The deregulation of TEs has been reported in some developmental diseases, as well as for different types of human cancers. To date, the role of TEs, the mechanisms underlying TE reactivation, and the interplay with DNA methylation in human cancers remain largely unexplained. We reviewed the loss of epigenetic regulation and subsequent genomic instability, chromosomal aberrations, transcriptional deregulation, oncogenic activation, and aberrations of non-coding RNAs as the potential mechanisms underlying TE deregulation in human cancers.

41 CFR 302-2.4 - What is my effective transfer or appointment date?

Science.gov (United States)

2010-07-01

... 41 Public Contracts and Property Management 4 2010-07-01 2010-07-01 false What is my effective transfer or appointment date? 302-2.4 Section 302-2.4 Public Contracts and Property Management Federal Travel Regulation System RELOCATION ALLOWANCES INTRODUCTION 2-EMPLOYEES ELIGIBILITY REQUIREMENTS General...

Performance of compact TES arrays with integrated high-fill-fraction X-ray absorbers

International Nuclear Information System (INIS)

Lindeman, Mark A.; Bandler, Simon; Brekosky, Regis P.; Chervenak, James A.; Figueroa-Feliciano, Enectali; Finkbeiner, Fred M.; Kelley, Richard L.; Saab, Tarek; Stahle, Caroline K.; Talley, D.J.

2004-01-01

We have recently produced and tested two-dimensional arrays of Mo/Au transition-edge-sensor (TES) calorimeters with Bi/Cu absorbers. The arrays represent a significant step towards meeting the specifications of NASA's Constellation-X mission. The calorimeters are compactly spaced within 5x5 arrays of 250 μm square pixels necessary for an angular resolution of 5 arcsec. Lithographically produced absorbers hang over the substrate and wiring between the TESs for high filling fraction and high quantum efficiency. We designed the calorimeters with heat capacities and thermal couplings such that X-rays produce pulses with fall times of approximately 300 μs to allow relatively high count rates with low dead time. We read out up to four of the pixels simultaneously. The arrays demonstrated very good energy resolution (5 eV at 1.5 keV and 7 eV at 6 keV) and little crosstalk between neighboring pixels

17 CFR 248.128 - Effective date, compliance date, and prospective application.

Science.gov (United States)

2010-04-01

... Affiliate Marketing § 248.128 Effective date, compliance date, and prospective application. (a) Effective date. This subpart is effective September 10, 2009. (b) Mandatory compliance date. Compliance with this... 17 Commodity and Securities Exchanges 3 2010-04-01 2010-04-01 false Effective date, compliance...

Revisiting the Relationship between Transposable Elements and the Eukaryotic Stress Response.

Science.gov (United States)

Horváth, Vivien; Merenciano, Miriam; González, Josefa

2017-11-01

A relationship between transposable elements (TEs) and the eukaryotic stress response was suggested in the first publications describing TEs. Since then, it has often been assumed that TEs are activated by stress, and that this activation is often beneficial for the organism. In recent years, the availability of new high-throughput experimental techniques has allowed further interrogation of the relationship between TEs and stress. By reviewing the recent literature, we conclude that although there is evidence for a beneficial effect of TE activation under stress conditions, the relationship between TEs and the eukaryotic stress response is quite complex. Copyright © 2017 Elsevier Ltd. All rights reserved.

76 FR 43337 - Order of Succession for the Office of Public Affairs

Science.gov (United States)

2011-07-20

... Office of Public Affairs AGENCY: Office of Public Affairs, HUD. ACTION: Notice of order of succession... Office of Public Affairs. This Order of Succession supersedes all prior orders of succession for the Office of Public Affairs. DATES: Effective Date: June 29, 2011. FOR FURTHER INFORMATION CONTACT: Neill...

A Moderator Model of Alcohol Use and Dating Aggression among Young Adults.

Science.gov (United States)

Collibee, Charlene; Furman, Wyndol

2018-03-01

Dating aggression has been identified as a priority public health concern. Although alcohol use is a known robust risk factor for dating aggression involvement, such usage is neither necessary nor sufficient for dating aggression involvement. As such, a growing topic of interest is a better understanding of when, and for whom, alcohol use increases risk. A theoretical moderator model posits that associations between alcohol use and dating aggression involvement vary depending on both background (e.g., psychopathology) and situational (e.g., relationship characteristics) risk factors. Alcohol use is thought to be more strongly associated with dating aggression in the context of these other risk factors. Using an intensive longitudinal design, we collected six waves of data spanning 6 months from 120 participants (60 females; M age W1 = 22.44). Alcohol use and relationship risk were both associated with increases in dating aggression involvement. Consistent with a moderator model, interactions emerged between alcohol use and relationship risk for subsequent dating aggression involvement. The findings underscore the importance of alcohol use and relationship risk for the development of intervention and prevention programs.

Cannabis use and dating violence among college students: A call for research.

Science.gov (United States)

Shorey, Ryan C; Haynes, Ellen; Strauss, Catherine; Temple, Jeff R; Stuart, Gregory L

2017-01-01

Dating violence is a serious and prevalent problem on college campuses. Although there is a robust literature documenting that alcohol use is consistently associated with increased risk for perpetrating dating violence, little research has examined the role of cannabis in dating violence perpetration. With increasing legalisation of cannabis throughout the world, it is imperative to understand what role, if any, cannabis may play in the important public health problem of dating violence. In this commentary, we discuss the current state of the research on cannabis and dating violence and suggest avenues for additional research in this area. It is critical that we conduct methodologically sound research on the association between cannabis and dating violence so that we can understand what role, if any, cannabis exerts on this important problem. [Shorey RC, Haynes E, Strauss C, Temple JR, Stuart GL. Cannabis use and dating violence among college students: A call for research. Drug Alcohol Rev 2017;36:17-19]. © 2017 Australasian Professional Society on Alcohol and other Drugs.

75 FR 14150 - Proposed Rate Adjustment, Public Forum, and Opportunities for Public Review and Comment for...

Science.gov (United States)

2010-03-24

... DEPARTMENT OF ENERGY Southeastern Power Administration Proposed Rate Adjustment, Public Forum, and Opportunities for Public Review and Comment for Georgia-Alabama-South Carolina System of Projects AGENCY: Southeastern Power Administration, DOE. ACTION: Notice to change date and location of the Public Information...

76 FR 9636 - Public Meeting

Science.gov (United States)

2011-02-18

... DEPARTMENT OF THE TREASURY United States Mint Public Meeting ACTION: Notification of Citizens Coinage Advisory Committee March 1, 2011, Public Meeting. SUMMARY: Pursuant to United States Code, Title... (CCAC) public meeting scheduled for March 1, 2011. Date: March 1, 2011. Time: 10 a.m. to 1 p.m. Location...

Radiocarbon dates for Rangitoto and Motutapu, a consideration of dating accuracy

International Nuclear Information System (INIS)

Law, R.G.

1975-01-01

The carbon dates for the eruptions of Rangitoto and the occupation of Maori sites on Motutapu contain inconsistencies which are explicable only after the dates have been corrected to allow for the nature of the dating method. The only date which is reasonably established is a 14th or 15th century dating for the ash shower covering Motutapu. (auth.)

Publication status of contemporary oncology randomised controlled trials worldwide.

Science.gov (United States)

Chen, Yu-Pei; Liu, Xu; Lv, Jia-Wei; Li, Wen-Fei; Zhang, Yuan; Guo, Ying; Lin, Ai-Hua; Sun, Ying; Mao, Yan-Ping; Ma, Jun

2016-10-01

Little is known about the extent of selective publication in contemporary oncology randomised controlled trials (RCTs) worldwide. This study aimed to evaluate the rates of publication and timely publication (within 24 months) for contemporary oncology RCTs from all over the world. We also investigated the trial characteristics associated with publication and timely publication. We identified all phase III oncology RCTs registered on ClinicalTrials.gov with a primary completion date between January 2008 and December 2012. We searched PubMed and EMBASE to identify publications. The final search date was 31 December 2015. Our primary outcome measure was the time to publication from the primary completion date to the date of primary publication in a peer-reviewed journal. We identified 598 completed oncology RCTs; overall, 398 (66.6%) had been published. For published trials, the median time to publication was 25 months (interquartile range, 16-37 months). Only 192 trials (32.1%) were published within 24 months. Timely publication was independently associated with trials completed late in 2012. Trials conducted in Asia and other regions were less likely to have timely publication, but trials conducted in different locations were all equally likely to be published. Industry- and NIH-funded trials were equally likely to be published timely or at any time after trial completion. Among 391 published trials with clear primary outcomes, there was a trend for timely publication of positive trials compared with negative trials. Despite the ethical obligations and societal expectations of disclosing findings promptly, oncology RCTs performed poorly. Copyright © 2016 Elsevier Ltd. All rights reserved.

Alus kosmētikas produktu vizuālās identitātes izstrāde

OpenAIRE

Bonfelde, Lelde

2016-01-01

Diplomdarba tēma ir “Alus kosmētikas produktu vizuālās identitātes izstrāde”. Darba teorētiskajā daļā tiek apskatīts iepakojuma dizaina jēdziens, iepakojuma dizaina nozīme, dizaina veidošanas principi, populārākie iepakojuma materiāli. Pētījuma mērķis ir izpētīt, vai mūsdienu alus kosmētikas iepakojuma dizainā ir nepieciešamība izmantot alus iepakojuma dizaina raksturīgākos principus. Hipotēze: Alus kosmētikas iepakojuma dizainā nepieciešams izmantot alus etiķešu dizaina grafiskos elementus...

Bullying and HIV Risk among High School Teenagers: The Mediating Role of Teen Dating Violence

Science.gov (United States)

Okumu, Moses; Mengo, Cecilia; Ombayo, Bernadette; Small, Eusebius

2017-01-01

Background: Teen dating violence (TDV), bullying, and HIV risk behaviors are public health concerns that impact adolescents in the United States. National estimates reveal high rates of these risk behaviors among high school students. Based on theoretical and empirical evidence, we hypothesized that experiencing teen dating violence (sexual and…

Elemental Abundances and their Implications for the Chemical Enrichment of the Boötes I Ultrafaint Galaxy

Science.gov (United States)

Gilmore, Gerard; Norris, John E.; Monaco, Lorenzo; Yong, David; Wyse, Rosemary F. G.; Geisler, D.

2013-01-01

We present a double-blind analysis of high-dispersion spectra of seven red giant members of the Boötes I ultrafaint dwarf spheroidal galaxy, complemented with re-analysis of a similar spectrum of an eighth-member star. The stars cover [Fe/H] from -3.7 to -1.9 and include a CEMP-no star with [Fe/H] = -3.33. We conclude from our chemical abundance data that Boötes I has evolved as a self-enriching star-forming system, from essentially primordial initial abundances. This allows us uniquely to investigate the place of CEMP-no stars in a chemically evolving system, in addition to limiting the timescale of star formation. The elemental abundances are formally consistent with a halo-like distribution, with enhanced mean [α/Fe] and small scatter about the mean. This is in accord with the high-mass stellar initial mass function in this low-stellar-density, low-metallicity system being indistinguishable from the present-day solar neighborhood value. There is a non-significant hint of a decline in [α/Fe] with [Fe/H]; together with the low scatter, this requires low star formation rates, allowing time for supernova ejecta to be mixed over the large spatial scales of interest. One star has very high [Ti/Fe], but we do not confirm a previously published high value of [Mg/Fe] for another star. We discuss the existence of CEMP-no stars, and the absence of any stars with lower CEMP-no enhancements at higher [Fe/H], a situation that is consistent with knowledge of CEMP-no stars in the Galactic field. We show that this observation requires there be two enrichment paths at very low metallicities: CEMP-no and "carbon-normal." Based on observations collected at the European Southern Observatory, Paranal, Chile (Proposal P82.182.B-0372, PI: G. Gilmore).

Dating Violence

Science.gov (United States)

Stader, David L.

2011-01-01

Dating violence is a form of student-on-student victimization and is a serious school safety issue. Research indicates that at a minimum, 10 percent of high school students are victims of dating violence in one form or another. Among female high school students that date, some data indicate that as many as 30 percent may be victims of dating…

EIA publications directory, 1992

International Nuclear Information System (INIS)

1993-01-01

This directory contains abstracts and ordering information for EIA publications. The abstracts are arranged by broad subject category such as coal, petroleum, natural gas, and electric power. A comprehensive subject index, a title index, and a report number index are included. Each entry gives the title, report number, publication frequency, date, number of pages, and ordering information. Publication began with the 1979 edition

Luminescence dating

International Nuclear Information System (INIS)

Rieser, U.

2013-01-01

The luminescence techniques have evolved over the last 40 years to a powerful dating instrument in archaeology and geoscience. Depending on how the luminescence is stimulated, one distinguishes the phenomena of thermoluminescence (TL), optically stimulated luminescence (OSL) and infrared stimulated luminescence (IRSL). Each of these phenomena has its specific potential for dating various archaeological materials in the time range from medieval back to palaeolithic periods, or, speaking in geological terms, for dating of Holocene and late Pleistocene objects. The OSL and IRSL techniques are sometimes treated together as 'optical dating'. The luminescence techniques differ from other major dating techniques, such as 14 C, essentially by their applicability to inorganic materials, their wide age-range from about 100 years to more than 100,000 years and the kind of datable events which are the last exposure to heat or to light. (author). 10 refs., 3 figs.

Luminescence dating

International Nuclear Information System (INIS)

Rieser, U.

2009-01-01

The luminescence techniques have evolved over the last 40 years to a powerful dating instrument in archaeology and geoscience. Depending on how the luminescence is stimulated, one distinguishes the phenomena of thermoluminescence (TL), optically stimulated luminescence (OSL) and infrared stimulated luminescence (IRSL). Each of these phenomena has its specific potential for dating various archaeological materals in the time range from medieval back to palaeolithic periods, or, speaking in geological terms, for dating of Holocene and late Pleistocene objects. The OSL and IRSL techniques are sometimes treated together as 'optical dating'. The luminescence techniques differ from other major dating techniques, such as 14 C, essentially by their applicability to inorganic materials, their wide age-range from about 100 years to more than 100,000 years and the kind of datable events which are the last exposure to heat or to light. (author). 10 refs., 3 figs.

Luminescence dating

International Nuclear Information System (INIS)

Rieser, U.

2008-01-01

The luminescence techniques have evolved over the last 40 years to a powerful dating instrument in archaeology and geoscience. Depending on how the luminescence is stimulated, one distinguishes the phenomena of thermoluminescence (TL), optically stimulated luminescence (OSL) and infrared stimulated luminescence (IRSL). Each of these phenomena has its specific potential for dating various archaeological materals in the time range from medieval back to palaeolithic periods, or, speaking in geological terms, for dating of Holocene and late Pleistocene objects. The OSL and IRSL techniques are sometimes treated together as 'optical dating'. The luminescence techniques differ from other major dating techniques, such as 14 C, essentially by their applicability to inorganic materials, their wide age-range from about 100 years to more than 100,000 years and the kind of datable events which are the last exposure to heat or to light. (author). 10 refs., 3 figs

Luminescence dating

International Nuclear Information System (INIS)

Rieser, U.

2012-01-01

The luminescence techniques have evolved over the last 40 years to a powerful dating instrument in archaeology and geoscience. Depending on how the luminescence is stimulated, one distinguishes the phenomena of thermoluminescence (TL), optically stimulated luminescence (OSL) and infrared stimulated luminescence (IRSL). Each of these phenomena has its specific potential for dating various archaeological materials in the time range from medieval back to palaeolithic periods, or, speaking in geological terms, for dating of Holocene and late Pleistocene objects. The OSL and IRSL techniques are sometimes treated together as 'optical dating'. The luminescence techniques differ from other major dating techniques, such as 14 C, essentially by their applicability to inorganic materials, their wide age-range from about 100 years to more than 100,000 years and the kind of datable events which are the last exposure to heat or to light. (author). 10 refs., 3 figs.

Luminescence dating

International Nuclear Information System (INIS)

Rieser, U.

2009-01-01

The luminescence techniques have evolved over the last 40 years to a powerful dating instrument in archaeology and geoscience. Depending on how the luminescence is stimulated, one distinguishes the phenomena of thermoluminescence (TL), optically stimulated luminescence (OSL) and infrared stimulated luminescence (IRSL). Each of these phenomena has its specific potential for dating various archaeological materals in the time range from medieval back to palaeolithic periods, or, speaking in geological terms, for dating of Holocene and late Pleistocene objects. The OSL and IRSL techniques are sometimes treated together as 'optical dating'. The luminescence techniques differ from other major dating techniques, such as 14 C, essentially by their applicability to inorganic materials, their wide age-range from about 100 years to more than 100,000 years and the kind of datable events which are the last exposure to heat or to light. (author). 10 refs., 3 figs

Irradiation of dates

International Nuclear Information System (INIS)

Farkas, J.; Al-Charchafchy, F.; Al-Shaikhaly, M.H.; Mirjan, J.; Auda, H.

1974-01-01

Testing of the technical feasibility of radurization of fresh dates was attempted. In addition preliminary studies were carried out to investigate the applicability of gamma rays to date syrup manufacture. The varieties Zahdi, Lelwi and Tabarzel were studied at different stages of ripening. The eating quality of fresh dates was not affected significantly by irradiation even with doses of 270 and 540 krad. The duration of the softening process, after-ripening, of dates was prolonged by low doses of 10-30 krad in the majority of the experimental batches. The time period of after-ripening was reduced with 270 krad, as well as with 540 krad as a result of shortening of the induction period, i.e. the time after which the date begins to soften. The microbial spoilage of khalaal Lelwi dates was considerably reduced by irradiation with doses above 90 krad. The dibis yield of fully rutab dates was highly increased by the radiation doses of 375 to 2000 krad. The darkness and viable cell count of dibis pressed from irradiated dates were significantly lower than that of untreated dates. (F.J.)

Substitution of Sugar with Dates Powder and Dates Syrup in Cookies Making

OpenAIRE

W.A. Alsenaien; R.A. Alamer; Zhen-Xing Tang; S.A. Albahrani; M.A. Al-Ghannam; S.M. Aleid

2015-01-01

In this study, the effects of dates powder and dates syrup as a sugar substitution, on the physical properties and sensory attributes of cookies were studied. An increase in firmness and moisture content of cookies supplemented with dates was obtained. The diameter and spread ratio of cookies showed a decrease with increasing levels of date powder or date syrup. Partial replacement of sugar with date powder or date syrup produced cookies with more dark and red color. Sensory evaluation result...

Low Thermal Conductance Transition Edge Sensor (TES) for SPICA

International Nuclear Information System (INIS)

Khosropanah, P.; Dirks, B.; Kuur, J. van der; Ridder, M.; Bruijn, M.; Popescu, M.; Hoevers, H.; Gao, J. R.; Morozov, D.; Mauskopf, P.

2009-01-01

We fabricated and characterized low thermal conductance transition edge sensors (TES) for SAFARI instrument on SPICA. The device is based on a superconducting Ti/Au bilayer deposited on suspended SiN membrane. The critical temperature of the device is 113 mK. The low thermal conductance is realized by using long and narrow SiN supporting legs. All measurements were performed having the device in a light-tight box, which to a great extent eliminates the loading of the background radiation. We measured the current-voltage (IV) characteristics of the device in different bath temperatures and determine the thermal conductance (G) to be equal to 320 fW/K. This value corresponds to a noise equivalent power (NEP) of 3x10 -19 W/√(Hz). The current noise and complex impedance is also measured at different bias points at 55 mK bath temperature. The measured electrical (dark) NEP is 1x10 -18 W/√(Hz), which is about a factor of 3 higher than what we expect from the thermal conductance that comes out of the IV curves. Despite using a light-tight box, the photon noise might still be the source of this excess noise. We also measured the complex impedance of the same device at several bias points. Fitting a simple first order thermal-electrical model to the measured data, we find an effective time constant of about 2.7 ms and a thermal capacity of 13 fJ/K in the middle of the transition.

Urban teens and young adults describe drama, disrespect, dating violence and help-seeking preferences.

Science.gov (United States)

Martin, Caitlin Eileen; Houston, Avril Melissa; Mmari, Kristin N; Decker, Michele R

2012-07-01

Adolescent dating violence is increasingly recognized as a public health problem. Our qualitative investigation sought input from urban, African-American adolescents at risk for dating violence concerning (Tjaden and Thoennes in Full report of the prevelance, incidence, and consequences of violence against women: findings from the national violence against women survey. US Department of Justice, Washington, DC, 2000) dating violence descriptions, (WHO multi-country study on women's health and domestic violence against women: Summary report of initial results on prevalence, health outcomes and women's responses. World Health Organization, Geneva, 2005) preferences for help-seeking for dating violence, and (Intimate partner violence in the United States. Bureau of Justice Statistics, US Department of Justice, Office of Justice Programs, Washington, DC, 2007) recommendations for a teen dating violence resource center. Four focus groups were conducted with urban, African American adolescents (n = 32) aged 13-24 recruited from an urban adolescent clinic's community outreach partners. Qualitative analysis was conducted. Participants assigned a wide range of meanings for the term "relationship drama", and used dating violence using language not typically heard among adults, e.g., "disrespect". Participants described preferences for turning to family or friends before seeking formal services for dating violence, but reported barriers to their ability to rely on these informal sources. When asked to consider formal services, they described their preferred resource center as confidential and safe, with empathetic, non-judgmental staff. Teens also gave insight into preferred ways to outreach and publicize dating violence resources. Findings inform recommendations for youth-specific tailoring of violence screening and intervention efforts. Current evidence that slang terms, i.e., "drama", lack specificity suggests that they should not be integrated within screening protocols

Investigation of solar parabolic trough power plants with and without integrated TES (thermal energy storage) and FBS (fuel backup system) using thermic oil and solar salt

International Nuclear Information System (INIS)

Boukelia, T.E.; Mecibah, M.S.; Kumar, B.N.; Reddy, K.S.

2015-01-01

Thermodynamic, economic and environmental analyses of concentrating solar power plants assist in identifying an effective and viable configuration. In this paper, a 4E (energy-exergy-environmental-economic) comparative study of 8 different configurations of parabolic trough solar thermal power plants with two different working fluids (Therminol VP-1 -oil and molten solar salt), with and without integrated thermal energy storage or/and backup fuel system is presented. The results of the comparative study indicate relevant differences among the 8 configurations. The molten solar salt configuration with integrated thermal energy storage and fossil fuel backup system exhibits the highest overall energy efficiency (18.48%) compared to other configurations. Whereas, the highest overall exergy efficiency (21.77%), capacity factor (38.20%) and annual energy generation (114 GWh) are found for the oil based configuration with integrated thermal energy storage and fossil fuel backup system. The results indicate that the configurations based on molten salt are better in terms of environmental and economical parameters. The configurations with integrated thermal energy storage and fossil fuel backup system are found to be techno-economical, but on the other hand are less environment friendly. A detailed comparison of these plants after optimization must be performed before drawing a final conclusion about the best configuration to be adopted in parabolic trough solar thermal power plant. - Highlights: • 4E comparative study of 8 configurations of PTSTPP with two different fluids. • Comparison of the configurations with and without integrated TES (thermal energy storage) and FBS (fuel backup system). • The overall energy efficiency of the salt plant with TES and FBS is the highest. • The overall exergy efficiency of the oil plant with TES and FBS is the highest. • The salt plants are the best configurations in terms of environ–eco parameters

Measurements of the Optical Performance of Prototype TES Bolometers for SAFARI

Science.gov (United States)

Audley, M. D.; de Lange, G.; Ranjan, M.; Gao, J.-R.; Khosropanah, P.; Ridder, M. L.; Mauskopf, P. D.; Morozov, D.; Doherty, S.; Trappe, N.; Withington, S.

2014-09-01

We have measured the optical response of prototype detectors for SAFARI, the far-infrared imaging spectrometer for the SPICA satellite. SAFARI's three bolometer arrays, coupled with a Fourier transform spectrometer, will provide images of a 2'×2' field of view with spectral information over the wavelength range 34-210 μm. Each horn-coupled bolometer consists of a transition edge sensor (TES), with a transition temperature close to 100 mK, and a thin-film Ta absorber on a thermally-isolated silicon nitride membrane. SAFARI requires extremely sensitive detectors ( NEP˜2×10-19 W/), with correspondingly low saturation powers (˜5 fW), to take advantage of SPICA's cooled optics. To meet the challenge of testing such sensitive detectors we have constructed an ultra-low background test facility based on a cryogen-free high-capacity dilution refrigerator, paying careful attention to stray-light exclusion, shielding, and vibration isolation. For optical measurements the system contains internal cold (3-30 K) and hot (˜300 K) black-body calibration sources, as well as a light pipe for external illumination. We discuss our measurements of high optical efficiency in prototype SAFARI detectors and describe recent improvements to the test facility that will enable us to test the full SAFARI focal-plane arrays.

76 FR 43336 - Delegation of Authority for the Office of Public Affairs

Science.gov (United States)

2011-07-20

... the Office of Public Affairs AGENCY: Office of the Secretary, HUD. ACTION: Notice of Delegation of... Secretary for Public Affairs with respect to developing policy and procedures for external and internal... Assistant Secretary for Public Affairs. DATES: Effective Date: June 29, 2011. FOR FURTHER INFORMATION...

Understanding the hesitancy to disclose teen dating violence: Correlates of self-efficacy to deal with teen dating violence

Directory of Open Access Journals (Sweden)

Hébert Martine

2014-01-01

Full Text Available Dating violence (DV is now recognized as an important public health issue. Prevention and intervention programs are being implemented in school contexts. Such initiatives aim to raise awareness among potential victims and offenders as well as among peer bystanders and offer adequate interventions following disclosure. Yet, a major challenge remains as teenagers may not disclose their victimization or may not feel self-efficient to deal with DV if they witness such violence. As such, teen DV remains largely hidden. A representative sample of 8194 students (age 14-18 in the province of Quebec, Canada was used to explore teenagers’ self-efficacy to reach out for help or to help others in a situation of DV victimization and perpetration. Analyses are conducted to identify possible correlates of self-efficacy in terms of socio-demographic variable (sex, age and a history of child sexual abuse and dating victimization. Implications for preven­tion and support strategies are discussed.

Weight perceptions, misperceptions, and dating violence victimization among U.S. adolescents.

Science.gov (United States)

Farhat, Tilda; Haynie, Denise; Summersett-Ringgold, Faith; Brooks-Russell, Ashley; Iannotti, Ronald J

2015-05-01

Dating violence is a major public health issue among youth. Overweight/obese adolescents experience peer victimization and discrimination and may be at increased risk of dating violence victimization. Furthermore, given the stigma associated with overweight/obesity, perceptions and misperceptions of overweight may be more important than actual weight status for dating violence victimization. This study examines the association of three weight indices (weight status, perceived weight, and weight perception accuracy) with psychological and physical dating violence victimization. The 2010 baseline survey of the 7-year NEXT Generation Health Study used a three-stage stratified clustered sampling design to select a nationally representative sample of U.S. 10th-grade students (n = 1,983). Participants who have had a boyfriend/girlfriend reported dating violence victimization and perceived weight. Weight status was computed from measured height/weight. Weight perception accuracy (accurate/underestimate/overestimate) was calculated by comparing weight status and perceived weight. Gender-stratified regressions examined the association of weight indices and dating violence victimization. Racial/ethnic differences were also examined. The association of weight indices with dating violence victimization significantly differed by gender. Overall, among boys, no associations were observed. Among girls, weight status was not associated with dating violence victimization, nor with number of dating violence victimization acts; however, perceived weight and weight perception accuracy were significantly associated with dating violence victimization, type of victimization, and number of victimization acts. Post hoc analyses revealed significant racial/ethnic differences. White girls who perceive themselves (accurately or not) to be overweight, and Hispanic girls who are overweight, may be at increased risk of dating violence victimization. These findings suggest a targeted approach to

Factors Related to Teenage Dating Violence Prevention Programming in Schools

Science.gov (United States)

Black, Beverly M.; Hawley, Alicia; Hoefer, Richard; Barnett, Tracey M.

2017-01-01

The Children's Safety Network has identified teenage dating violence (TDV) as a public health problem and called for effective prevention programs to address the issue. This study used resource dependence theory to examine factors that relate to domestic violence shelters' in-school efforts to prevent TDV. A national survey was sent to domestic…

Bullying Predicts Reported Dating Violence and Observed Qualities in Adolescent Dating Relationships.

Science.gov (United States)

Ellis, Wendy E; Wolfe, David A

2015-10-01

The relationship between reported bullying, reported dating violence, and dating relationship quality measured through couple observations was examined. Given past research demonstrating similarity between peer and dating contexts, we expected that bullying would predict negative dating experiences. Participants with dating experience (n = 585; 238 males, M(age) = 15.06) completed self-report assessments of bullying and dating violence perpetration and victimization. One month later, 44 opposite-sex dyads (M(age) = 15.19) participated in behavioral observations. In 10-min sessions, couples were asked to rank and discuss areas of relationship conflict while being video-recorded. Qualities of the relationship were later coded by trained observers. Regression analysis revealed that bullying positively predicted dating violence perpetration and victimization. Self-reported bullying also predicted observations of lower relationship support and higher withdrawal. Age and gender interactions further qualified these findings. The bullying of boys, but not girls, was significantly related to dating violence perpetration. Age interactions showed that bullying was positively predictive of dating violence perpetration and victimization for older, but not younger adolescents. Positive affect was also negatively predicted by bullying, but only for girls. These findings add to the growing body of evidence that adolescents carry forward strategies learned in the peer context to their dating relationships. © The Author(s) 2014.

Benchmarking CCMI models' top-of-atmosphere flux in the 9.6-µm ozone band using AURA TES Instantaneous Radiative Kernel

Science.gov (United States)

Kuai, L.; Bowman, K. W.; Worden, H. M.; Paulot, F.; Paynter, D.; Oman, L.; Strode, S. A.; Rozanov, E.; Stenke, A.; Revell, L. E.; Plummer, D. A.

2017-12-01

The estimated ozone radiative forcing (RF) from chemical-climate models range widely from +0.2 to +0.6 Wm-2. The reason has never been well understood. Since the ozone absorption in the 9.6 μm band contributes 97% of the O3 longwave RF, the variation of outgoing longwave radiation (OLR) due to ozone is dominant by this band. The observed TOA flux over 9.6 µm ozone band by Thermal Emission Spectrometer (TES) shows the global distribution has unique spatial patterns. In addition, the simulated TOA fluxes over 9.6 µm ozone band by different models have never been evaluated against observations. The bias of TOA flux from model could be primarily contributed by the bias of temperature, water vapor and ozone. Furthermore, the sensitivity of TOA flux to tropospheric ozone (instantaneous radiative kernel, IRK) may also affected by these biases (Kuai et al., 2017). The bias in TOA flux would eventually propagate into model calculations of ozone RF and cause divergence of the predictions of future climate by models. In this study, we applied the observation-based IRK product by AURA TES to attribute the CCMI model bias in TOA flux over 9.6 µm ozone band to ozone, water vapor, air temperature, and surface temperature. The comparisons of the three CCMI models (AM3, SOCOL3 and GEOCCM) to TES observations suggest that 1) all models underestimate the TOA flux at tropics and subtropics. 2) The TOA flux bias is comparable similar by AM3 and GEOSCC (-0.2 to -0.3 W/m2) however is larger for the relative young model, SOCOL3 (-0.4 to -0.6 W/m2). 3) The contributions by surface temperature are similarly moderate (-0.2 W/m2). 4) The contribution of ozone is largest by SOCOL3 (-0.3 W/m2), smallest by GEOSCCM (less than 0.1 W/m2) and moderate by AM3 (-0.2 W/m2). 5) Overall, the contributions by atmospheric temperature are all small (less than 0.1 W/m2). 6) The contribution of water vapor is negative and small by both SOCOL3 and GEOSCCM (0.1 W/m2) however large and positive by AM3 (0

Nonreciprocal and Reciprocal Dating Violence and Injury Occurrence among Urban Youth

Directory of Open Access Journals (Sweden)

Swahn, Monica H

2010-08-01

Full Text Available Objective: Dating violence is a significant health problem among youth that leads to adverse health outcomes, including injuries. Reciprocal violence (perpetrated by both partners is associated with increased injury in adults, but very little is known about the prevalence and context for reciprocal violence, as well as injury rates, among youth. We sought to determine the prevalence and scope of reciprocal dating violence and injury occurrence among urban youth in a high-risk community. Methods: Analyses were based on data from the Youth Violence Survey, conducted in 2004, and administered to over 80% of public school students in grades 7, 9, 11, and 12 (N=4,131 in a high-risk, urban school district. The current analyses were restricted to those who reported dating in the past year and who also reported any dating violence (n=1,158. Dating violence was categorized as reciprocal (the participant reported both violence perpetration and victimization and non-reciprocal (the participant report either violence perpetration or victimization, but not both. Results: Dating violence reciprocity varied by sex. Girls who reported any dating violence were more likely to report reciprocal dating violence (50.4% than were boys (38.9%. However, reciprocity did not vary by race/ethnicity or grade level. Reciprocal dating violence was more common among participants who reported more frequent violence experiences. Reciprocal violence was also associated with greater injury occurrences relative to non-reciprocal relationships (10.1% versus 1.2%. Conclusion: Reciprocal dating violence is common among adolescents and leads more often to injury outcomes. In particular, relationships in which boys report reciprocal violence against their partner appear to lead to more frequent injury occurrences. These findings underscore the importance of addressing dating violence and factors that increase risk for reciprocal violence and therefore exacerbate injury occurrence

Dating and Sexual Feelings

Science.gov (United States)

... Home Body Your sexuality Dating and sexual feelings Dating and sexual feelings Thinking about romance, starting to ... you learn how to stay healthy and strong. Dating older guys top If you date someone even ...

"A/S PET Baltija" kvalitātes pārvaldību sistēmu loma uzņēmuma konkurētspējas nodrošināšanā

OpenAIRE

Goldšteins, Jānis

2012-01-01

Bakalaura darba tēma ir ,,A/S PET Baltija’’ kvalitātes pārvaldību sistēmu loma uzņēmuma konkurētspējas nodrošināšanā. Bakalaura darba mērķis ir izpētīt A/S PET Baltija kvalitātes pārvaldības sistēmu darbības ietekmi uz uzņēmuma konkurētspēju, atklāt problēmas un izstrādāt priekšlikumus problēmu samazināšanai. Bakalaura darbs satur: 65 lapas, 4 tabulas, 24 attēlus. Darba pirmajā daļā autors analizē Eiropas Direktīvu un LR likumdošanas normatīvo aktu analīzi atkritumu apsaimniek...

Résultats de recherches récentes sur la structure géologique des gîtes de houille de la Ruhr Results of Recent Research on the Geological Structure of Coal Beds in the Ruhr

Directory of Open Access Journals (Sweden)

Kaulfuss R.

2006-10-01

Full Text Available Un inventaire exact des gîtes de houille était lié à la réorganisation des rapports de propriété dans la région de la Ruhr (Fondation de la Ruhrkohle AG. Du fait que dans les domaines de gîtes de houille en exploitation les réserves de houille ne suffiront pas à assurer à long terme un rendement d'extraction suffisant, on commença une vaste exploration dans des parties de quartier encore inconnues. Il fut ainsi possible d'élargir considérablement les connaissances sur la situation géologique des gîtes de houille grâce à des études par réflexion sismique, des forages profonds et des enregistrements de forages géophysiques. An accurate inventory of the coal beds was dependent upon the reorganization of property reports in the Ruhr region (Ruhrkohle Fondation AG. Because the working coal fields do not contain sufficient coal reserves to guarantee satisfactory productivity rates on a long-term basis, extensive exploration in previously unexplored parts of the area was undertaken. Thus, it became possible to extend considerably our knowledge of the geological structure of the coal beds through refraction shooting, deep drilling, and the well logging.

41 CFR 301-11.10 - Am I required to record departure/arrival dates and times on my travel claim?

Science.gov (United States)

2010-07-01

... departure/arrival dates and times on my travel claim? 301-11.10 Section 301-11.10 Public Contracts and... dates and times on my travel claim? You must record the date of departure from, and arrival at, the... visited. You do not have to record departure/arrival times, but you must annotate your travel claim when...

Calorimetric determination of enthalpies for the proton ionization of N,N-bis[2-hydroxyethyl]-2-aminoethanesulfonic acid (BES) and N-tris[hydroxymethyl]methyl-2-aminoethanesulfonic acid (TES) in water-methanol mixtures

International Nuclear Information System (INIS)

Bulos, B.N.; Jumean, F.H.

2004-01-01

The enthalpies of proton ionization of the biochemical buffers N,N-bis[2-hydroxyethyl]-2-aminoethanesulfonic acid (BES) and N-tris[hydroxymethyl]methyl-2-aminoethanesulfonic acid (TES) were obtained in water-methanol mixtures in which the methanol mole fraction (X m ) varied in the range 0-0.36. For both buffers, ionization enthalpy for the first proton (ΔH 1 ) was small in all solvent media. However, upon addition of methanol, ΔH 2 increased steadily from 22.2 to a maximum of 27.2 kJ mol -1 for BES, whereas for TES it varied from 30.0 to 32.4, with a minimum of 28.6 kJ mol -1 at X m =0.123. It is noteworthy that this solvent composition lies within the region of maximum structure enhancement of water by methanol. The results were interpreted in terms of methanol-water interactions

Bullying Prevention for Public Health Practitioners

Centers for Disease Control (CDC) Podcasts

2012-01-19

This podcast discusses bullying as a public health problem, and provides information and resources for public health practitioners.  Created: 1/19/2012 by National Center for Injury Prevention and Control (NCIPC).   Date Released: 1/19/2012.

A bibliography of AECL publications on environmental research

International Nuclear Information System (INIS)

Hawley, N.J.

1978-12-01

Publications in the open literature on environmental research performed by AECL personnel are listed chronologically with the first entry dated 1951. It is intended that the bibliography should be brought up to date yearly. (author)

bulletin Publication 2009

CERN Document Server

DSU Unit

2008-01-01

The table below lists the 2009 publication dates for the paper version of the Bulletin and the corresponding deadlines for the submission of announcements. Please note that all announcements must be submitted by 12.00 midday on Tuesdays at the latest. Bulletin No. Week number Submission of announcements (before 12.00 midday) Publication date 3-4 Tuesday 6 January Monday 12 January 5-6 Tuesday 20 January Monday 26 January 7-8 Tuesday 3 February Monday 9 February 9-10 Tuesday 17 February Monday 23 February 11-12 Tuesday 3 March Monday 9 March 13-14 Tuesday 17 March Monday 23 March 15-16-17 (Easter issue) Tuesday 31 March Monday 6 April 18-19 Tuesday 21 April Monday 27 April 20-21 Tuesday 5 May Monday 11 May 22-23 Tuesday 19 May Monday 25 May 24-25 ...

45 CFR 671.15 - Publication of preliminary determination

Science.gov (United States)

2010-10-01

... 45 Public Welfare 3 2010-10-01 2010-10-01 false Publication of preliminary determination 671.15... Publication of preliminary determination Prior to any designation or redesignation of substances pursuant to... Environmental Protection Agency and other federal agencies, within 30 days after the date of publication of...

Public Accountability Institutions in Pakistan and their ...

International Development Research Centre (IDRC) Digital Library (Canada)

Mobile Nav Footer Links ... It is expected that the research will provide insight into the relationship between public accountability, macroeconomic ... Date de début ... Public accountability institutions of Pakistan & their macro economic impacts.

EIA Publications Directory 1993

International Nuclear Information System (INIS)

1994-01-01

This directory contains abstracts and ordering information for EIA publications released in the above time period. The abstracts are arranged by broad subject category such as coal, petroleum, natural gas, and electric power. A comprehensive subject index, a title index, and a report number index are included. Each entry gives the title, report number, publication frequency, date, number of pages, and ordering information

75 FR 67145 - Sunshine Act: Public Hearing

Science.gov (United States)

2010-11-01

... OVERSEAS PRIVATE INVESTMENT CORPORATION Sunshine Act: Public Hearing TIME AND DATE: 2 p.m... Avenue, NW., Washington, DC. STATUS: Hearing open to the Public at 2 p.m. PURPOSE: Public Hearing in... hearing orally must provide advance notice to OPIC's Corporate Secretary no later than 5 p.m. Thursday...

Economic assessment and optimal operation of CSP systems with TES in California electricity markets

Science.gov (United States)

Dowling, Alexander W.; Dyreson, Ana; Miller, Franklin; Zavala, Victor M.

2017-06-01

The economics and performance of concentrated power (CSP) systems with thermal energy storage (TES) inherently depend on operating policies and the surrounding weather conditions and electricity markets. We present an integrated economic assessment framework to quantify the maximum possible revenues from simultaneous energy and ancillary services sales by CSP systems. The framework includes both discrete start-up/shutdown restrictions and detailed physical models. Analysis of coinci-dental historical market and meteorological data reveals provision of ancillary services increases market revenue 18% to 37% relative to energy-only participation. Surprisingly, only 53% to 62% of these revenues are available through sole participation in the day-ahead market, indicating significant opportunities at faster timescales. Motivated by water-usage concerns and permitting requirements, we also describe a new nighttime radiative-enhanced dry-cooling system with cold-side storage that consumes no water and offers higher effciencies than traditional air-cooled designs. Operation of this new system is complicated by the cold-side storage and inherent coupling between the cooling system and power plant, further motivating integrated economic analysis.

78 FR 5816 - Electronic Study Data Submission; Data Standard Support End Date

Science.gov (United States)

2013-01-28

...] Electronic Study Data Submission; Data Standard Support End Date AGENCY: Food and Drug Administration, HHS... Safety and Innovation Act (FDASIA) (Public Law 112- 144), requires electronic submission of drug and... comment, will specify the format required for such electronic submissions. The action announced in this...

Dating Violence in Mexico College Students: A Review

Directory of Open Access Journals (Sweden)

José Luis Rojas-Solís

2013-06-01

Full Text Available Dating violence in Mexico is a serious problem because 76% of young Mexicans have suffered psychological violence, 15% have suffered physical violence and 16.5% have suffered sexual violence (Mexican Youth Institute, 2008. Therefore it has been given increasing attention to the study of this phenomenon in numerous researches. Knowing the characteristics of this production would allow to consolidate or to open up new research lines, so this narrative review discusses the main methodological characteristics of research on dating violence in Mexican university students. It was included twenty scientific researches published by Mexicans and foreigners researchers between 2002 and 2012 in scientific journals or presented at scientific conferences, with samples consisting of Mexican university students aged between 18 and 25 years. The search was conducted in specialized databases such as Dialnet, Google Scholar, Psicodoc, Psycinfo, Redalyc and Scirus. The results show that 75% of the studies were quantitative designs, 100% was cross-sectional design and 85% had nonrandom sample. 95% of the samples were formed by students from public universities and 15% used an internationally validated questionnaire and controlled social desirability of responses. It concludes the need for more studies with mixed, dyadic or longitudinal designs, but with samples randomly selected from public and private universities. The need of control of social desirability of responses and the implementation of validated questionnaires to allow comparisons between results.

Quaternary dating methods

International Nuclear Information System (INIS)

Mahaney, W.C.

1984-01-01

The papers in this book cover absolute, relative and multiple dating methods, and have been written by specialists from a number of different earth sciences disciplines - their common interest being the dating of geological materials within the Quaternary. Papers on absolute dating methods discuss radiocarbon, uranium-series, potassium argon, 40 Ar/ 39 Ar, paleomagnetic, obsidian hydration, thermoluminescence, amino acid racemization, tree rings, and lichenometric techniques. Those on relative dating include discussions on various geomorphic relative age indicators such as drainage density changes, hypsometric integrals, bifurcation ratios, stream junction angles, spur morphology, hillslope geometry, and till sheet characteristics. The papers on multiple dating cite examples from the Rocky Mountains, Australia, Lake Agassiz Basin, and the Southern Andes. Also included is the panel discussion which reviews and assesses the information presented, and a field trip guide which discusses the sequences of Wisconian tills and interlayered lacustrine and fluvial sediments. (orig.)

Examining the Contemporaneous Occurrence of Bullying and Teen Dating Violence Victimization

Science.gov (United States)

Debnam, Katrina J.; Waasdorp, Tracy E.; Bradshaw, Catherine P.

2016-01-01

Teen dating violence (TDV) is a preventable public health issue that has been linked to other forms of aggression and violence victimization. It is also a growing concern for school psychologists who may be working to prevent TDV and related behavioral problems, like bullying. The current study examined various forms of bullying victimization…

Progress in radiocarbon dating

International Nuclear Information System (INIS)

Hedges, R.E.M.

1985-01-01

The article concerns radiocarbon dating, the most important method for dating in archaeology. The principles and practice of the dating method are described. Recent developments in radiocarbon dating due to technical advances, are discussed, and include radiometric counting of small samples and accelerator mass spectrometry. Carbon isotopes and the environment are also discussed. (U.K.)

Calorimetric determination of enthalpies for the proton ionization of N,N-bis[2-hydroxyethyl]-2-aminoethanesulfonic acid (BES) and N-tris[hydroxymethyl]methyl-2-aminoethanesulfonic acid (TES) in water-methanol mixtures

Energy Technology Data Exchange (ETDEWEB)

Bulos, B.N.; Jumean, F.H

2004-02-19

The enthalpies of proton ionization of the biochemical buffers N,N-bis[2-hydroxyethyl]-2-aminoethanesulfonic acid (BES) and N-tris[hydroxymethyl]methyl-2-aminoethanesulfonic acid (TES) were obtained in water-methanol mixtures in which the methanol mole fraction (X{sub m}) varied in the range 0-0.36. For both buffers, ionization enthalpy for the first proton ({delta}H{sub 1}) was small in all solvent media. However, upon addition of methanol, {delta}H{sub 2} increased steadily from 22.2 to a maximum of 27.2 kJ mol{sup -1} for BES, whereas for TES it varied from 30.0 to 32.4, with a minimum of 28.6 kJ mol{sup -1} at X{sub m}=0.123. It is noteworthy that this solvent composition lies within the region of maximum structure enhancement of water by methanol. The results were interpreted in terms of methanol-water interactions.

75 FR 28051 - Public Workshop: Pieces of Privacy

Science.gov (United States)

2010-05-19

... DEPARTMENT OF HOMELAND SECURITY Office of the Secretary Public Workshop: Pieces of Privacy AGENCY: Privacy Office, DHS. ACTION: Notice announcing public workshop. SUMMARY: The Department of Homeland Security Privacy Office will host a public workshop, ``Pieces of Privacy.'' DATES: The workshop will be...

47 CFR 61.32 - Method of filing publications.

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2010-10-01

... 47 Telecommunication 3 2010-10-01 2010-10-01 false Method of filing publications. 61.32 Section 61...) TARIFFS General Rules for Dominant Carriers § 61.32 Method of filing publications. (a) Publications sent....” The date on which the publication is received by the Secretary of the Commission (or the Mail Room...

47 CFR 61.20 - Method of filing publications.

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2010-10-01

... 47 Telecommunication 3 2010-10-01 2010-10-01 false Method of filing publications. 61.20 Section 61...) TARIFFS General Rules for Nondominant Carriers § 61.20 Method of filing publications. (a) Publications... 20554.“ The date on which the publication is received by the Secretary of the Commission (or the Mail...

A Phenomenological Investigation of Adolescent Dating Relationships and Dating Violence Counseling Interventions

Science.gov (United States)

Hays, Danica G.; Michel, Rebecca E.; Cole, Rebekah F.; Emelianchik, Kelly; Forman, Julia; Lorelle, Sonya; McBride, Rebecca; Sikes, April

2011-01-01

Despite the prevalence of dating violence, incidences often go unreported due to a lack of awareness among students as to appropriate dating behaviors. This phenomenology investigated how adolescents conceptualize and experience dating relationships. We explored adolescent females' definitions of healthy and abusive relationships, experiences with…

Apmierinātības ar dzīvi, apmierinātības ar darbu, lojalitātes pret organizāciju un darba-dzīves līdzsvara saistība

OpenAIRE

Heifeca, Poļina

2013-01-01

Darba mērķis - noskaidrot kādas ir saistības starp apmierinātību ar dzīvi, apmierinātību ar darbu, darbinieka lojalitāti pret organizāciju un darba – dzīves līdzsvaru. Pētījumā piedalījās 120 respondenti, 62 sievietes un 58 – vīrieši vecumposmā no 21 līdz 60 gadiem.Maģistra darba pētījumā apmierinātības ar dzīvi izpētei tika izmantota apmierinātības ar dzīvi skala, lojalitātes pret organizāciju noteikšanai tika izmantota lojalitātes pret organizāciju aptauja (Organizational Commitment Questi...

Correlates of minimal dating.

Science.gov (United States)

Leck, Kira

2006-10-01

Researchers have associated minimal dating with numerous factors. The present author tested shyness, introversion, physical attractiveness, performance evaluation, anxiety, social skill, social self-esteem, and loneliness to determine the nature of their relationships with 2 measures of self-reported minimal dating in a sample of 175 college students. For women, shyness, introversion, physical attractiveness, self-rated anxiety, social self-esteem, and loneliness correlated with 1 or both measures of minimal dating. For men, physical attractiveness, observer-rated social skill, social self-esteem, and loneliness correlated with 1 or both measures of minimal dating. The patterns of relationships were not identical for the 2 indicators of minimal dating, indicating the possibility that minimal dating is not a single construct as researchers previously believed. The present author discussed implications and suggestions for future researchers.

Radiometric dating methods

International Nuclear Information System (INIS)

Bourdon, B.

2003-01-01

The general principle of isotope dating methods is based on the presence of radioactive isotopes in the geologic or archaeological object to be dated. The decay with time of these isotopes is used to determine the 'zero' time corresponding to the event to be dated. This paper recalls the general principle of isotope dating methods (bases, analytical methods, validation of results and uncertainties) and presents the methods based on natural radioactivity (Rb-Sr, Sm-Nd, U-Pb, Re-Os, K-Ar (Ar-Ar), U-Th-Ra- 210 Pb, U-Pa, 14 C, 36 Cl, 10 Be) and the methods based on artificial radioactivity with their applications. Finally, the methods based on irradiation damages (thermoluminescence, fission tracks, electron spin resonance) are briefly evoked. (J.S.)

45 CFR 164.534 - Compliance dates for initial implementation of the privacy standards.

Science.gov (United States)

2010-10-01

... privacy standards. 164.534 Section 164.534 Public Welfare DEPARTMENT OF HEALTH AND HUMAN SERVICES ADMINISTRATIVE DATA STANDARDS AND RELATED REQUIREMENTS SECURITY AND PRIVACY Privacy of Individually Identifiable Health Information § 164.534 Compliance dates for initial implementation of the privacy standards. (a...

Report : public transportation in Washington State, 1984

Science.gov (United States)

1984-10-01

This report is an update of the Public Transportation in Washington State publication, dated December 1981. In order to reflect the changes that have occurred since that time, this report contains the most current data obtainable. Chapter One of this...

Dating Violence among Male and Female Youth seeking Emergency Department Care

Science.gov (United States)

Singh, Vijay; Walton, Maureen A; Whiteside, Lauren K; Stoddard, Sarah; Epstein-Ngo, Quyen; Chermack, Stephen T; Cunningham, Rebecca M

2014-01-01

Objective To determine prevalence and correlates of dating violence, dating victimization, and dating aggression among males and females age 14–20 seeking emergency department (ED) care. Methods Systematic sampling of subjects age 14–20 seeking care at a single large academic ED between 9/2010- 3/2013. Participants completed a computerized, self-administered, cross-sectional survey of demographics, dating violence from physical abuse measures of the Conflict in Adolescent Dating Relationships Inventory, associated behaviors, and ED health service use. Separate analyses were conducted for males and females. Results 4389 youth (86.1% participation rate) were screened, and 4089 (mean age 17.5 years, 58% female) were eligible for analysis. Almost 1 in 5 females (n= 215, 18.4%) and 1 in 8 males (n= 212, 12.5%) reported past year dating violence. Of females, 10.6% reported dating victimization, and 14.6% dating aggression, while of males, 11.7% reported dating victimization, and 4.9% reported dating aggression. Multivariate analyses showed variables associated with any male dating violence were African American race (AOR 2.26, CI 1.54–3.32), alcohol misuse (AOR 1.03, CI 1.00–1.06), illicit drug misuse (AOR 2.38, CI 1.68–3.38), and depression (AOR 2.13, CI 1.46–3.10); any female dating violence was associated with African-American race (AOR 1.68, CI 1.25–2.25), public assistance (AOR 1.64, CI 1.28–2.09), grades D and below (AOR 1.62, CI 1.07–2.43), alcohol misuse (AOR 1.04, CI 1.02–1.07), illicit drug misuse (AOR 2.85, CI 2.22–3.66), depression (AOR 1.86, CI 1.42–2.44), and any past year ED visit for intentional injury (AOR 2.64, CI 1.30–5.40). Conclusions Nearly 1 of 6 male and female adolescents seeking ED care report recent dating violence, and health disparities remain among this population. Dating violence was strongly associated with alcohol, illicit drug misuse, and depression, and correlated with prior ED service utilization among female

Narratives of Compensated Dating of Girls in Hong Kong Using Routine Activity Theory: Results of a Focus Group Study of Guardians.

Science.gov (United States)

Li, Jessica C M; Cheung, Chau-Kiu; Jia, Cindy X S; Yu, Yolanda M Y; Nguyen, Ping

2018-02-01

This article presents public discourses on compensated dating of adolescent girls in Chinese society. Data are obtained from eight focus groups comprising 50 guardians at private, parochial, and public levels (i.e., social workers, police officers, parents of students, and community representatives). Qualitative data are used to demonstrate how the guardians conceptualize and contextualize compensated dating as an outcome of the dynamics of societal features. Social features such as contemporary ideologies, Internet technology advancement, commercialization of human relationships, and ambiguity between "right" and "wrong" motivate the service providers and customers of compensated dating, and accelerate their convergence and weakened levels of guardianship in society. This study is the first to connect the features of compensated dating of adolescent girls with recent societal changes using the routine activity approach. The findings confirm the application of the routine activity approach in the phenomenon of girls' compensated dating, and also offer theoretical and practical implications.

Longitudinal relationships between individual and class norms supporting dating violence and perpetration of dating violence.

Science.gov (United States)

Taylor, Katherine A; Sullivan, Terri N; Farrell, Albert D

2015-03-01

Dating violence is commonly perpetrated in adolescence, making it imperative to understand risk factors in order to inform prevention efforts. Although individual norms supporting dating violence are strongly related to its perpetration, few studies have examined their longitudinal impact. Moreover, the influence of class norms (i.e., norms for students in the same grade, cohort, and school) supporting dating violence on perpetration has rarely been studied. The current study examined longitudinal relationships between individual and class norms supporting dating violence and perpetration of physical and psychological dating violence. Participants were two cohorts of sixth graders from 37 schools who were in dating relationships at Wave 1 and 6 months later at Wave 2 (N = 2,022; 43% female; 52% African American, 21% Latino/a, 20% White, and 7% other). The analyses used a multilevel approach, with students represented at Level 1 and classes (n = 74) at Level 2. The models tested direct effects of Wave 1 individual and class norms supporting dating violence on subsequent changes in perpetration of dating violence at Wave 2 and the extent to which gender moderated these relationships. The findings indicated that greater individual norms supporting male dating violence predicted greater change in perpetration of physical and psychological dating violence and greater individual norms supporting female dating violence predicted greater change in perpetration of psychological dating violence. Greater class norms supporting male dating violence predicted greater change in perpetration of physical dating violence; whereas greater class norms supporting female dating violence predicted less change in perpetration of physical dating violence. These findings highlight the need to address norms in early adolescence.

Understanding Teen Dating Violence

Science.gov (United States)

Understanding Teen Dating Violence Fact Sheet 2014 Dating violence is a type of intimate partner violence. It occurs between two people in a close relationship. The nature of dating violence can be physical, emotional, or sexual. • Physical— This ...

The Realities of Date Rape.

Science.gov (United States)

Presley, Cara; Watson, Jennifer; Williams, Audrey R.

This poster presentation addresses the issue of date rape, specifically in the college environment. Highlighted are date rape statistics, demographics, and date rape drugs. Also discussed are date rape warnings and prevention strategies. It is concluded that college and university administrators must place the issue of date rape and acquaintance…

37 CFR 1.211 - Publication of applications.

Science.gov (United States)

2010-07-01

... disparaging material. (e) The publication fee set forth in § 1.18(d) must be paid in each application... publication fee which must be paid within three months from the date of mailing of the notice of allowance to... not published under this section, the publication fee (if paid) will be refunded. [65 FR 57058, Sept...

75 FR 27843 - June 10, 2010 Public Hearing

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2010-05-18

... OVERSEAS PRIVATE INVESTMENT CORPORATION June 10, 2010 Public Hearing Time and Date: 2 p.m..., NW., Washington, DC. Status: Hearing open to the Public at 2 p.m. Purpose: Public Hearing in... hearing orally must provide advance notice to OPIC's Corporate Secretary no later than 5 p.m. Thursday...

12 CFR 41.28 - Effective date, compliance date, and prospective application.

Science.gov (United States)

2010-01-01

... TREASURY FAIR CREDIT REPORTING Affiliate Marketing § 41.28 Effective date, compliance date, and prospective... an affiliate to make solicitations to a consumer if the bank receives such information prior to...

16 CFR 680.28 - Effective date, compliance date, and prospective application.

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2010-01-01

... REPORTING ACT AFFILIATE MARKETING § 680.28 Effective date, compliance date, and prospective application. (a... part shall not prohibit you from using eligibility information that you receive from an affiliate to...

12 CFR 571.28 - Effective date, compliance date, and prospective application.

Science.gov (United States)

2010-01-01

... THE TREASURY FAIR CREDIT REPORTING Affiliate Marketing § 571.28 Effective date, compliance date, and... receive from an affiliate to make solicitations to a consumer if you receive such information prior to...

Up-Dating: Ratings of Perceived Dating Success Are Better Online than Offline.

Science.gov (United States)

Fullwood, Chris; Attrill-Smith, Alison

2018-01-01

The primary aims of this study were to test whether perceived dating success would differ between offline and online zero-acquaintance dating contexts and to investigate the role that self-esteem might play in these evaluations. Participants were presented with the same photos of targets in either an offline or online dating scenario and rated their chances of dating success along with their perceptions of how attractive they thought the target would consider them. Higher self-esteem individuals believed they would be rated as more attractive. There was an overall perception that, irrespective of self-esteem level, meeting online would lead to better chances of dating success. These findings are considered in relation to an increased ability to more precisely manage impressions and develop an image of the self which would be evaluated more positively online.

Using Encapsulated Phase Change Material in Thermal Energy Storage for Baseload Concentrating Solar Power (EPCM-TES)

Energy Technology Data Exchange (ETDEWEB)

Mathur, Anoop [Terrafore Technologies LLC, Minneapolis, MN (United States)

2013-12-15

Terrafore successfully demonstrated and optimized the manufacturing of capsules containing phase-changing inorganic salts. The phase change was used to store thermal energy collected from a concentrating solar-power plant as latent heat. This latent heat, in addition to sensible heat increased the energy density (energy stored per unit weight of salt) by over 50%, thus requiring 40% less salt and over 60% less capsule container. Therefore, the cost to store high-temperature thermal energy collected in a concentrating solar power plant will be reduced by almost 40% or more, as compared to conventional two-tank, sensible-only storage systems. The cost for thermal energy storage (TES) system is expected to achieve the Sun Shot goal of $15 per kWh(t). Costs associated with poor heat-transfer in phase change materials (PCM) were also eliminated. Although thermal energy storage that relies on the latent heat of fusion of PCM improves energy density by as much as 50%, upon energy discharge the salt freezes and builds on the heat transfer surfaces. Since these salts have low thermal conductivity, large heat-transfer areas, or larger conventional heat-exchangers are needed, which increases costs. By encapsulating PCM in small capsules we have increased the heat transfer area per unit volume of salt and brought the heat transfer fluid in direct contact with the capsules. These two improvements have increased the heat transfer coefficient and boosted heat transfer. The program was successful in overcoming the phenomenon of melt expansion in the capsules, which requires the creation of open volume in the capsules or shell to allow for expansion of the molten salt on melting and is heated above its melting point to 550°C. Under contract with the Department of Energy, Terrafore Inc. and Southwest Research Institute, developed innovative method(s) to economically create the open volume or void in the capsule. One method consists of using a sacrificial polymer coating as the

Carbon 14 dating method

International Nuclear Information System (INIS)

Fortin, Ph.

2000-01-01

This document gives a first introduction to 14 C dating as it is put into practice at the radiocarbon dating centre of Claude-Bernard university (Lyon-1 univ., Villeurbanne, France): general considerations and recalls of nuclear physics; the 14 C dating method; the initial standard activity; the isotopic fractioning; the measurement of samples activity; the liquid-scintillation counters; the calibration and correction of 14 C dates; the preparation of samples; the benzene synthesis; the current applications of the method. (J.S.)

Progress Towards Improved Analysis of TES X-ray Data Using Principal Component Analysis

Science.gov (United States)

Busch, S. E.; Adams, J. S.; Bandler, S. R.; Chervenak, J. A.; Eckart, M. E.; Finkbeiner, F. M.; Fixsen, D. J.; Kelley, R. L.; Kilbourne, C. A.; Lee, S.-J.;

Physical dating violence among adolescents and young adults with alcohol misuse.

Science.gov (United States)

Singh, Vijay; Epstein-Ngo, Quyen; Cunningham, Rebecca M; Stoddard, Sarah A; Chermack, Stephen T; Walton, Maureen A

2015-08-01

This study determined prevalence and correlates of physical dating violence (victimization or aggression) among male and female youth with alcohol misuse and seeking emergency department (ED) care. Patients age 14-20 seeking care at a single large university-based ED completed a computerized, self-administered, cross-sectional survey. Measures included demographics, alcohol and substance use, mental health problems, health service use, peer influences, parent support, and community involvement. Bivariate and multivariate regression assessed physical dating violence correlates. Among 842 male and female youth seeking ED care who screened positive for alcohol misuse, 22.3% (n=188) reported dating violence in the past year. Multivariate analyses showed variables associated with dating violence were female gender (AOR 2.17, CI 1.46-3.22), Caucasian race (AOR 0.59, CI 0.37-0.93), receipt of public assistance (AOR 1.82, CI 1.16-2.87), AUDIT Score (AOR 1.06, CI 1.02-1.10), older age of drinking onset (AOR 0.86, CI 0.77-0.96), suicidal ideation or attempt (AOR 1.95, CI 1.13-3.37), frequency of ED visits (AOR 1.22, CI 1.05-1.46), negative peer influences (AOR 1.05, CI 1.01-1.10), and positive peer influences (AOR 0.86, CI 0.80-0.93). Nearly 1 in 4 youth with alcohol misuse seeking ED care report dating violence. Key correlates of dating violence included alcohol use severity, suicidal ideation, ED services, and peer influences. Evidence-based dating violence interventions addressing these correlates are needed for youth with alcohol misuse seeking ED care. Copyright © 2015 Elsevier Ireland Ltd. All rights reserved.

Dates fruits classification using SVM

Science.gov (United States)

Alzu'bi, Reem; Anushya, A.; Hamed, Ebtisam; Al Sha'ar, Eng. Abdelnour; Vincy, B. S. Angela

2018-04-01

In this paper, we used SVM in classifying various types of dates using their images. Dates have interesting different characteristics that can be valuable to distinguish and determine a particular date type. These characteristics include shape, texture, and color. A system that achieves 100% accuracy was built to classify the dates which can be eatable and cannot be eatable. The built system helps the food industry and customer in classifying dates depending on specific quality measures giving best performance with specific type of dates.

Dating Violence and Substance Use as Longitudinal Predictors of Adolescents’ Risky Sexual Behavior

Science.gov (United States)

Shorey, Ryan C.; Fite, Paula J.; Choi, HyeJeong; Cohen, Joseph R.; Stuart, Gregory L.; Temple, Jeff R.

2015-01-01

Objective To examine dating violence perpetration and victimization (physical, psychological, and sexual) and lifetime substance use (alcohol, marijuana, and hard drugs) as longitudinal predictors of adolescents’ risky sexual behavior across one year, and to determine whether predictors varied across adolescents’ gender and ethnicity. Methods A sample of Caucasian, African American, and Hispanic male and female adolescents from 7 public high schools in Texas (N = 882) participated. Adolescents completed self-report measures of dating violence, lifetime substance use, and risky sexual behavior at baseline and, 1-year later, completed a second assessment of their risky sexual behavior. Results Path analysis demonstrated that greater physical dating violence victimization, lifetime alcohol use, lifetime marijuana use, and age (being older) were all significant predictors of risky sexual behavior at the 1-year follow-up. These results did not vary across gender or the three ethnic groups (Caucasian, African American, and Hispanic). Conclusions Overall, substance use was a longitudinal predictor of risky sexual behavior across the three ethnic groups, with physical dating violence victimization being the only type of dating violence longitudinally predicting risky sexual behavior. Prevention efforts should consider the roles of physical dating violence and substance use in preventing risky sexual behavior. PMID:25797949

Dating Violence and Substance Use as Longitudinal Predictors of Adolescents' Risky Sexual Behavior.

Science.gov (United States)

Shorey, Ryan C; Fite, Paula J; Choi, HyeJeong; Cohen, Joseph R; Stuart, Gregory L; Temple, Jeff R

2015-08-01

The objectives of this study is to examine dating violence perpetration and victimization (physical, psychological, and sexual) and lifetime substance use (alcohol, marijuana, and hard drugs) as longitudinal predictors of adolescents' risky sexual behavior across 1 year and to determine whether predictors varied across adolescents' gender and ethnicity. A sample of Caucasian, African American, and Hispanic male and female adolescents from seven public high schools in Texas (N = 882) participated. Adolescents completed self-report measures of dating violence, lifetime substance use, and risky sexual behavior at baseline and, 1-year later, completed a second assessment of their risky sexual behavior. Path analysis demonstrated that greater physical dating violence victimization, lifetime alcohol use, lifetime marijuana use, and age (being older) were all significant predictors of risky sexual behavior at the 1-year follow-up. These results did not vary across gender or the three ethnic groups (Caucasian, African American, and Hispanic). Overall, substance use was a longitudinal predictor of risky sexual behavior across the three ethnic groups, with physical dating violence victimization being the only type of dating violence longitudinally predicting risky sexual behavior. Prevention efforts should consider the roles of physical dating violence and substance use in preventing risky sexual behavior.

75 FR 53303 - Notice of Public Hearing

Science.gov (United States)

2010-08-31

... FINANCIAL CRISIS INQUIRY COMMISSION Notice of Public Hearing AGENCY: Financial Crisis Inquiry Commission. ACTION: Notice. SUMMARY: The next public hearing of the Financial Crisis Inquiry Commission (FCIC....gov . DATES: The hearing will be held on: Wednesday, September 1, 2010, 9 a.m. EDT; and Thursday...

Bomb pulse radiocarbon dating

International Nuclear Information System (INIS)

Tuniz, C.; Zoppi, U.; Hotchkis, M.A.C.

2004-01-01

Modern forensic science has to deal not only with homicides and other traditional crimes but also with more global threats such as the smuggling of nuclear materials, clandestine production of weapons of mass destruction, stockpiling of illicit drugs by state controlled groups and war crimes. Forensic applications have always benefited from the use of advanced analytical tools that can characterize materials found at crime scenes. In this paper we will discuss the use of accelerator mass spectrometry (AMS) as an ultrasensitive tool for the crime laboratories of the third millennium. An important objective in forensic science is to order past events chronologically by analysing materials associated with criminal actions. Radiocarbon dating is known to the general public for its application to historical and prehistorical investigations. Examples of forensic significance include the assassination of the Inca Atahualpa by Francisco Pizarro in the early 1530s, the possible murder of the Tyrolean Ice Man (Oetzi) 5300 years ago and the analysis of the burial cloths allegedly associated with the crucifixion of Jesus Christ . Recent murders, including those associated with war crimes in the Balkans during the 1990s, can be studied using 14 C bomb pulse dating. This method has other forensic applications, including investigation of frauds related to food and wine counterfeiting, dating of opium crops and dating of substances used in biological warfare. AMS extends the applicability of the radiocarbon method, allowing the analysis of 14 C in submilligram organic samples. Specific molecular compounds extracted from bones, hair, skin and other carbon bearing substances of forensic significance can now be dated, enhancing the sensitivity and reliability of chronological determinations. AMS can also be used to analyse rare actinide isotopes released into the environment during the clandestine production of nuclear weapons or associated with the smuggling of nuclear materials. In

77 FR 31847 - Notification of a Public Meeting and Public Teleconference of the Science Advisory Board (SAB...

Science.gov (United States)

2012-05-30

.... (Eastern Time). ADDRESSES: The Perchlorate Advisory Panel face-to-face public meeting will be held at The...-face meeting or follow-up teleconference to give EPA as much time as possible to process your request.... DATES: The Perchlorate Advisory Panel face-to-face public meeting will be held on Wednesday July 18...

46 CFR 121.420 - Charts and nautical publications.

Science.gov (United States)

2010-10-01

... 46 Shipping 4 2010-10-01 2010-10-01 false Charts and nautical publications. 121.420 Section 121... publications. (a) As appropriate for the intended voyage, a vessel must carry adequate and up-to-date: (1... publication; (3) Coast Guard Light List; (4) Tide tables; and (5) Current tables, or a river current...

The Longitudinal Association of Adolescent Dating Violence with Psychiatric Disorders and Functioning

Science.gov (United States)

Brown, Adrienne; Cosgrave, Elizabeth; Killackey, Eoin; Purcell, Rosemary; Buckby, Joe; Yung, Alison R.

2009-01-01

While the prevalence, correlates and mental health impacts of intimate partner violence are well documented in adolescents and young adults, fewer studies have considered physical dating violence among clinical samples of help-seeking young people. In a sample of 98 young people aged 15-24 years (54% females) referred to a specialist public youth…

BrassicaTED - a public database for utilization of miniature transposable elements in Brassica species.

Science.gov (United States)

Murukarthick, Jayakodi; Sampath, Perumal; Lee, Sang Choon; Choi, Beom-Soon; Senthil, Natesan; Liu, Shengyi; Yang, Tae-Jin

2014-06-20

MITE, TRIM and SINEs are miniature form transposable elements (mTEs) that are ubiquitous and dispersed throughout entire plant genomes. Tens of thousands of members cause insertion polymorphism at both the inter- and intra- species level. Therefore, mTEs are valuable targets and resources for development of markers that can be utilized for breeding, genetic diversity and genome evolution studies. Taking advantage of the completely sequenced genomes of Brassica rapa and B. oleracea, characterization of mTEs and building a curated database are prerequisite to extending their utilization for genomics and applied fields in Brassica crops. We have developed BrassicaTED as a unique web portal containing detailed characterization information for mTEs of Brassica species. At present, BrassicaTED has datasets for 41 mTE families, including 5894 and 6026 members from 20 MITE families, 1393 and 1639 members from 5 TRIM families, 1270 and 2364 members from 16 SINE families in B. rapa and B. oleracea, respectively. BrassicaTED offers different sections to browse structural and positional characteristics for every mTE family. In addition, we have added data on 289 MITE insertion polymorphisms from a survey of seven Brassica relatives. Genes with internal mTE insertions are shown with detailed gene annotation and microarray-based comparative gene expression data in comparison with their paralogs in the triplicated B. rapa genome. This database also includes a novel tool, K BLAST (Karyotype BLAST), for clear visualization of the locations for each member in the B. rapa and B. oleracea pseudo-genome sequences. BrassicaTED is a newly developed database of information regarding the characteristics and potential utility of mTEs including MITE, TRIM and SINEs in B. rapa and B. oleracea. The database will promote the development of desirable mTE-based markers, which can be utilized for genomics and breeding in Brassica species. BrassicaTED will be a valuable repository for scientists

Dating violence among male and female youth seeking emergency department care.

Science.gov (United States)

Singh, Vijay; Walton, Maureen A; Whiteside, Lauren K; Stoddard, Sarah; Epstein-Ngo, Quyen; Chermack, Stephen T; Cunningham, Rebecca M

2014-10-01

We determine prevalence and correlates of dating violence, dating victimization, and dating aggression among male and female patients aged 14 to 20 years seeking emergency department (ED) care. This was a systematic sampling of subjects aged 14 to 20 years seeking care at a single large academic ED between September 2010 and March 2013. Participants completed a computerized, self-administered, cross-sectional survey of demographics, dating violence from physical abuse measures of the Conflict in Adolescent Dating Relationships Inventory, associated behaviors, and ED health service use. Separate analyses were conducted for male and female patients. Four thousand three hundred eighty-nine youths (86.1% participation rate) were screened, and 4,089 (mean age 17.5 years; 58% female patients) were eligible for analysis. Almost 1 in 5 female patients (n=215; 18.4%) and 1 in 8 male patients (n=212; 12.5%) reported past-year dating violence. Of female patients, 10.6% reported dating victimization and 14.6% dating aggression, whereas of male patients, 11.7% reported dating victimization and 4.9% reported dating aggression. Multivariate analyses showed that variables associated with any male dating violence were black race (adjusted odds ratio [AOR] 2.26; 95% CI 1.54 to 3.32), alcohol misuse (AOR 1.03; 95% CI 1.00 to 1.06), illicit drug use (AOR 2.38; 95% CI 1.68 to 3.38), and depression (AOR 2.13; 95% CI 1.46 to 3.10); any female dating violence was associated with black race (AOR 1.68; 95% CI 1.25 to 2.25), public assistance (AOR 1.64; 95% CI 1.28 to 2.09), grades D and below (AOR 1.62; 95% CI 1.07 to 2.43), alcohol misuse (AOR 1.04; 95% CI 1.02 to 1.07), illicit drug use (AOR 2.85; 95% CI 2.22 to 3.66), depression (AOR 1.86; 95% CI 1.42 to 2.44), and any past year ED visit for intentional injury (AOR 2.64; 95% CI 1.30 to 5.40). Nearly 1 of 6 male and female patients aged 14 to 20 years and seeking ED care report recent dating violence, and health disparities remain among

Internet dating as a project: the commodification and rationalisation of online dating

Directory of Open Access Journals (Sweden)

Tjaša Žakelj

2015-04-01

Full Text Available Based on qualitative empirical data from two studies on Internet dating in Slovenia, this paper discusses the social contexts of the Internet dating of heterosexual men and women and homosexual men. Special attention is given to different aspects of the commodification and rationalisation of dating in the process of forming potential (romantic partnerships. First, we discuss our respondents’ reasons for using the Internet to get in touch with potential (romantic partners. Second, we focus on the demands and strategies of targeted market- ing in personal profile writing and, finally, on the process of selecting potential partners. Our study shows that the primary understanding of Internet dating among people who engage in it is its economic nature. Together with targeted marketing and the predeter- mined criteria for choosing interesting others, Internet dating can thus be understood as a market that encourages rationalisation and commodification in the process of forming intimate relationships.

An Evaluation of Two Dating Violence Prevention Programs on a College Campus.

Science.gov (United States)

Peterson, Kerry; Sharps, Phyllis; Banyard, Victoria; Powers, Ráchael A; Kaukinen, Catherine; Gross, Deborah; Decker, Michele R; Baatz, Carrie; Campbell, Jacquelyn

2016-03-13

Dating violence is a serious and prevalent public health problem that is associated with numerous negative physical and psychological health outcomes, and yet there has been limited evaluation of prevention programs on college campuses. A recent innovation in campus prevention focuses on mobilizing bystanders to take action. To date, bystander programs have mainly been compared with no treatment control groups raising questions about what value is added to dating violence prevention by focusing on bystanders. This study compared a single 90-min bystander education program for dating violence prevention with a traditional awareness education program, as well as with a no education control group. Using a quasi-experimental pre-test/post-test design with follow-up at 2 months, a sample of predominately freshmen college students was randomized to either the bystander (n = 369) or traditional awareness (n = 376) dating violence education program. A non-randomized control group of freshmen students who did not receive any education were also surveyed (n = 224). Students completed measures of attitudes, including rape myth acceptance, bystander efficacy, and intent to help as well as behavioral measures related to bystander action and victimization. Results showed that the bystander education program was more effective at changing attitudes, beliefs, efficacy, intentions, and self-reported behaviors compared with the traditional awareness education program. Both programs were significantly more effective than no education. The findings of this study have important implications for future dating violence prevention educational programming, emphasizing the value of bystander education programs for primary dating violence prevention among college students. © The Author(s) 2016.

77 FR 31371 - Public Workshop: Privacy Compliance Workshop

Science.gov (United States)

2012-05-25

... presentations, including the privacy compliance fundamentals, privacy and data security, and the privacy... DEPARTMENT OF HOMELAND SECURITY Office of the Secretary Public Workshop: Privacy Compliance... Homeland Security Privacy Office will host a public workshop, ``Privacy Compliance Workshop.'' DATES: The...

Dating Violence among College Students

Science.gov (United States)

Iconis, Rosemary

2013-01-01

Dating violence is a significant problem on college campuses. More than one-fifth of the undergraduate dating population are physically abused by their dating partners and an even greater percentage are psychologically abused. Researchers have identified risk factors for college student dating violence. Preventive interventions are strongly…

Substance Use as a Longitudinal Predictor of the Perpetration of Teen Dating Violence

Science.gov (United States)

Temple, Jeff R.; Shorey, Ryan C.; Fite, Paula; Stuart, Gregory L.; Le, Vi Donna

2013-01-01

The prevention of teen dating violence is a major public health priority. However, the dearth of longitudinal studies makes it difficult to develop programs that effectively target salient risk factors. Using a school-based sample of ethnically diverse adolescents, this longitudinal study examined whether substance use (alcohol, marijuana, and…

20 CFR 404.630 - Use of date of written statement as filing date.

Science.gov (United States)

2010-04-01

... data on the Internet Social Security Benefit Application to us, we will use the date of the... 20 Employees' Benefits 2 2010-04-01 2010-04-01 false Use of date of written statement as filing date. 404.630 Section 404.630 Employees' Benefits SOCIAL SECURITY ADMINISTRATION FEDERAL OLD-AGE...

Development and implementation of a dynamic TES dispatch control component in a PV-CSP techno-economic performance modelling tool

Science.gov (United States)

Hansson, Linus; Guédez, Rafael; Larchet, Kevin; Laumert, Bjorn

2017-06-01

The dispatchability offered by thermal energy storage (TES) in concentrated solar power (CSP) and solar hybrid plants based on such technology presents the most important difference compared to power generation based only on photovoltaics (PV). This has also been one reason for recent hybridization efforts of the two technologies and the creation of Power Purchase Agreement (PPA) payment schemes based on offering higher payment multiples during daily hours of higher (peak or priority) demand. Recent studies involving plant-level thermal energy storage control strategies are however to a large extent based on pre-determined approaches, thereby not taking into account the actual dynamics of thermal energy storage system operation. In this study, the implementation of a dynamic dispatch strategy in the form of a TRNSYS controller for hybrid PV-CSP plants in the power-plant modelling tool DYESOPT is presented. In doing this it was attempted to gauge the benefits of incorporating a day-ahead approach to dispatch control compared to a fully pre-determined approach determining hourly dispatch only once prior to annual simulation. By implementing a dynamic strategy, it was found possible to enhance technical and economic performance for CSP-only plants designed for peaking operation and featuring low values of the solar multiple. This was achieved by enhancing dispatch control, primarily by taking storage levels at the beginning of every simulation day into account. The sequential prediction of the TES level could therefore be improved, notably for evaluated plants without integrated PV, for which the predicted storage levels deviated less than when PV was present in the design. While also featuring dispatch performance gains, optimal plant configurations for hybrid PV-CSP was found to present a trade-off in economic performance in the form of an increase in break-even electricity price when using the dynamic strategy which was offset to some extent by a reduction in

Methods of dating

Energy Technology Data Exchange (ETDEWEB)

Gatty, B

1986-04-01

Scientific methods of dating, born less than thirty years ago, have recently improved tremendously. First the dating principles will be given; then it will be explained how, through natural radioactivity, we can have access to the age of an event or an object; the case of radiocarbon will be especially emphasized. The principle of relative methods such as thermoluminescence or paleomagnetism will also be shortly given. What is the use for dating. The fields of its application are numerous; through these methods, relatively precise ages can be given to the major events which have been keys in the history of universe, life and man; thus, dating is a useful scientific tool in astrophysics, geology, biology, anthropology and archeology. Even if certain ages are still subject to controversies, we can say that these methods have confirmed evolution's continuity, be it on a cosmic, biologic or human scale, where ages are measured in billions, millions or thousands of years respectively.

78 FR 21708 - Proposed Collection; Comment Request for Publication 1345

Science.gov (United States)

2013-04-11

... Publication 1345 AGENCY: Internal Revenue Service (IRS), Treasury. ACTION: Notice and request for comments... Publication 1345, Handbook for Authorized IRS e-file Providers. DATES: Written comments should be received on... [email protected] . SUPPLEMENTARY INFORMATION: Title: Publication 1345, Handbook for Authorized...

Radiometric dating

International Nuclear Information System (INIS)

Das, N.R.

2017-01-01

Since the discovery of natural radioactivity in uranium, in the last decade of the nineteenth century, the nuclear property of radioactive decay of radionuclides at immutable rates has been effectively utilized in dating of varieties of naturally occurring geological matrices and the organisms which constantly replenish their "1"4C supply through respiration when alive on earth. During the period, applications of radiometric dating techniques have been extensively diversified and have enabled the geologists to indicate the absolute time scales of geological formations and the evolution of the solar system, the earth, meteorites, lunar rocks, etc. and the archaeologists to record the facts of history of several important events like dinosaur era, Iceman, the Shroud in Turin and many other ancient artefacts. In the development of dating methods, varieties of naturally occurring radio-isotopic systems with favorable half-lives ranging from about 10 years to over 100 billion years have been used as radiometric clocks. (author)

Characterization of Transposable Elements in Laccaria bicolor

Energy Technology Data Exchange (ETDEWEB)

Labbe, Jessy L [ORNL; Murat, Claude [INRA, Nancy, France; Morin, Emmanuelle [INRA, Nancy, France; Tuskan, Gerald A [ORNL; Le Tacon, F [UMR, France; Martin, Francis [INRA, Nancy, France

2012-01-01

Background: The publicly available Laccaria bicolor genome sequence has provided a considerable genomic resource allowing systematic identification of transposable elements (TEs) in this symbiotic ectomycorrhizal fungus. Using a TE-specific annotation pipeline we have characterized and analyzed TEs in the L. bicolor S238N-H82 genome. Methodology/Principal Findings: TEs occupy 24% of the 60 Mb L. bicolor genome and represent 25,787 full-length and partial copies elements distributed within 172 families. The most abundant elements were the Copia-like. TEs are not randomly distributed across the genome, but are tightly nested or clustered. The majority of TEs are ancient except some terminal inverted repeats (TIRS), long terminal repeats (LTRs) and a large retrotransposon derivative (LARD) element. There were three main periods of TEs expansion in L. bicolor; the first from 57 to 10 Mya, the second from 5 to 1 Mya and the most recent from 500,000 years ago until now. LTR retrotransposons are closely related to retrotransposons found in another basidiomycete, Coprinopsis cinerea. Conclusions: This analysis represents an initial characterization of TEs in the L. bicolor genome, contributes to genome assembly and to a greater understanding of the role TEs played in genome organization and evolution, and provides a valuable resource for the ongoing Laccaria Pan-Genome project supported by the U.S.-DOE Joint Genome Institute.

17 CFR 9.13 - Publication of notice.

Science.gov (United States)

2010-04-01

... REVIEW OF EXCHANGE DISCIPLINARY, ACCESS DENIAL OR OTHER ADVERSE ACTIONS Notice and Effective Date of Disciplinary Action or Access Denial Action § 9.13 Publication of notice. Whenever an exchange suspends, expels... must make such findings public as soon as the disciplinary action or access denial action becomes...

Luminescence dating in archaeology

International Nuclear Information System (INIS)

Wintle, A.G.

2001-01-01

Thermoluminescence (TL) dating is routinely applied to burnt lithic material. Simple fires are capable of enabling stones weighing a few hundred grams to reach 450 o C, thus zeroing the TL signal. TL dates have been obtained for Upper and Lower Paleolithic sites in Europe and the Near East. TL dating continues to be used for dating pottery and for authentification of ceramic works of art. Some recent studies report the use of optically stimulated luminescence (OSL) (also know as photoluminescence) for dating very small samples of quartz, e.g. from small pieces of pottery or frm metallurgical slag The major recent advance has been in the development of a reliable laboratory procedure for using the OSL signal from quartz to obtain the past radiation exposure. The quartz OSL signal is extremely sensitive to light and is reduced to a negligible level on exposure to direct sunlight for radionuclides during burial, signal to date san.sized quartz grains extracted from sediments, The OSL signal is stimulated by 470 nm light from emitting diodes and the detected using flirters centred on 340 nm A similar signal can be obtained from feldspar grain when are exposed to infrared wavelengths around 880 nm. The infrared stimulated luminescence (IRSL) signals is also rapidly depleted by exposure to sunlight, and dating of colluvial deposits from archaeological sites has been reported

Phonon-mediated distributed transition-edge-sensor X-ray detectors for surveys of galaxy clusters and the warm-hot interstellar medium

International Nuclear Information System (INIS)

Leman, Steven W.; Brink, Paul L.; Cabrera, Blas; Castle, Joseph P.; Chakraborty, Sudeepto; Deiker, Steve; Kahn, Steve; Martinez-Galarce, Dennis S.; Stern, Robert A.; Tomada, Astrid

2006-01-01

We are developing a novel phonon-mediated distributed-TES X-ray detector in which X-rays are absorbed in a large germanium or silicon crystal, and the energy is read out by four distributed TESs. This design takes advantage of existing TES technology while overcoming the difficulties of designing spatially large arrays. The sum of the four TES signals will yield energy resolution of E/δE∼1000 and the partitioning of energy between the four will yield position resolution of X/δX and Y/δY∼100. These macropixels, with advances in multiplexing, could be close-packed into 30x30 arrays equivalent to imaging instruments of 10 megapixels or more. We report on our progress to date and discuss its application to galaxy cluster searches and studies of the Warm-Hot Interstellar Medium

The Middle to Upper Paleolithic transition: dating, stratigraphy, and isochronous markers.

Science.gov (United States)

Blockley, S P E; Ramsey, C Bronk; Higham, T F G

2008-11-01

Accurate and precise dating is vital to our understanding of the Middle to Upper Paleolithic transition. There are, however, a number of uncertainties in the chronologies currently available for this period. We attempt to examine these uncertainties by utilizing a number of recent developments in the field. These include: the precise dating of the Campanian Ignimbrite (CI) tephra by 40Ar/39Ar; the tracing of this tephra to a number of deposits that are radiocarbon dated; the publication of revised radiocarbon calibration data for the period, showing a much better convergence with other available data than during the recent IntCal comparison; and a layer-counted ice-core chronology extending beyond 40,000cal BP. Our data comparisons suggest that a reasonable overall convergence between calibrated radiocarbon ages and calendar dates is possible using the new curves. Additionally, we suggest that charcoal-based radiocarbon ages, as well as bone-based radiocarbon determinations, require cautious interpretation in this period. Potentially, these issues extend far beyond the sites in this study and should be of serious concern to archaeologists studying the Middle to Upper Paleolithic. We conclude by outlining a strategy for moving the science forward by a closer integration of archaeology, chronology, and stratigraphy.

Indonesia : tous les projets | Page 4 | CRDI - Centre de recherches ...

International Development Research Centre (IDRC) Digital Library (Canada)

Le 26 décembre 2004, un tsunami a ravagé la majeure partie des régions côtières de la province d'Aceh, en Indonésie, ainsi que les côtes est et sud du Sri Lanka. Date de début : 12 juillet 2006. End Date: 25 octobre 2009. Sujet: NATURAL DISASTERS, EMERGENCY RELIEF, ECONOMIC RECONSTRUCTION, AID ...

Dating fossil opal phytoliths

International Nuclear Information System (INIS)

Lentfer, C.; Boyd, B.; Torrence, R.

1999-01-01

Full text: Opal phytoliths are microscopic silica bodies formed by the precipitation of hydrated silica dioxide (SiO 2 nH 2 0) in, around and between cell walls. They are relatively resistant to degradation in most environments and thus, can occur in large quantities in palaeosediments. Consequently, they are valuable tools for environmental reconstruction. Furthermore, phytoliths are often the only recoverable organic material in well oxidised sediments, the occluded carbon provides the opportunity for dating sediment whose ages have previously been difficult to determine, and thus, increase the potential for fine resolution determination of environmental change. This poster describes the results of an investigation assessing the viability of AMS radiocarbon dating of fossil phytolith inclusions using samples from Garua Island, West New Britain, PNG. Thirteen phytolith samples, isolated from sediments previously dated using tephrastratigraphy and C14 dating of macroremains of nutshells and wood charcoal, were used in the analysis. As a control measure, thirteen parallel samples of microscopic charcoal were also dated using AMS. The results show that the AMS dates for the microscopic charcoal samples are consistent with ages anticipated from the other dating methods, for all but one sample. However, the dates for eight of the thirteen phytolith samples are considerably younger than expected. This bias could be explained by several factors, including downwashing of phytolith through soils, bioturbation, carbon exchange through the siliceous matrix of the phytolith bodies, and contamination from extraneous sources of modern carbon retained in the samples. Research is currently focusing on the investigation of these issues and selected samples are in the process of being retreated with strong oxidising agents to clear contaminants prior to re-dating. Further to this, a full investigation of one profile with a long sequence is underway. High concentrations of

75 FR 29817 - Proposed Collection; Comment Request for Publication 1345

Science.gov (United States)

2010-05-27

... Publication 1345 AGENCY: Internal Revenue Service (IRS), Treasury. ACTION: Notice and request for comments... Publication 1345, Handbook for Authorized IRS e-file Providers. DATES: Written comments should be received on....gov . SUPPLEMENTARY INFORMATION: Title: Publication 1345, Handbook for Authorized IRS e-file Providers...

Characterization of TES bolometers used in 2-dimensional Backshort-Under-Grid (BUG) arrays for far-infrared astronomy

International Nuclear Information System (INIS)

Staguhn, J.G.; Allen, C.A.; Benford, D.J.; Chervenak, J.A.; Chuss, D.T.; Miller, T.M.; Moseley, S.H.; Wollack, E.J.

2006-01-01

We have produced a laboratory demonstration of our new Backshort-Under-Grid (BUG) bolometer array architecture in a monolithic, 2-dimensional, 8x8 format. The detector array is designed as a square grid of suspended, 1μm thick silicon bolometers with superconducting molybdium/gold bilayer TESs. These detectors use an additional layer of gold bars deposited on top of the bilayer, oriented transverse to the direction of the current flow, for the suppression of excess noise. This detector design has earlier been shown to provide near fundamental noise limited device performance. We present results from performance measurements of witness devices. In particular we demonstrate that the inband excess noise level of the TES detectors is less than 20% above the thermodynamic phonon noise limit and not significantly higher out of band at frequencies that cannot be attenuated by the Nyquist filter. Our 8x8 BUG arrays will be used in the near future for astronomical observations in several (sub-)millimeter instruments

S K Date

Indian Academy of Sciences (India)

Home; Journals; Bulletin of Materials Science. S K Date. Articles written in Bulletin of Materials Science. Volume 23 Issue 2 April 2000 pp 97-101 Magnetic Materials. Comparison of the irreversible thermomagnetic behaviour of some ferro- and ferrimagnetic systems · P S Anil Kumar P A Joy S K Date · More Details Abstract ...

78 FR 23980 - Proposed Collection; Comment Request for Publication 1075

Science.gov (United States)

2013-04-23

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76 FR 44660 - Proposed Collection; Comment Request for Publication 3319

Science.gov (United States)

2011-07-26

... Publication 3319 AGENCY: Internal Revenue Service (IRS), Treasury. ACTION: Notice and request for comments... Publication 3319, Low-Income Taxpayer Clinics 2012 Grant Application Package and Guidelines. DATES: Written... or copies of publication should be directed to Joel Goldberger, at (202) 927-9368, or at Internal...

Characterization of Low Noise TES Detectors Fabricated by D-RIE Process for SAFARI Short-Wavelength Band

Science.gov (United States)

Khosropanah, P.; Suzuki, T.; Hijmering, R. A.; Ridder, M. L.; Lindeman, M. A.; Gao, J.-R.; Hoevers, H.

2014-08-01

SRON is developing TES detectors based on a superconducting Ti/Au bilayer on a suspended SiN membrane for the short-wavelength band of the SAFARI instrument on SPICA mission. We have recently replaced the wet KOH etching of the Si substrate by deep reactive ion etching. The new process enables us to fabricate the detectors on the substrate and release the membrane at the very last step. Therefore the production of SAFARI large arrays (4343) on thin SiN membrane (250 nm) is feasible. It also makes it possible to realize narrow supporting SiN legs of 1 m, which are needed to meet SAFARI NEP requirements. Here we report the current-voltage characteristics, noise performance and impedance measurement of these devices. The measured results are then compared with the distributed leg model that takes into account the thermal fluctuation noise due to the SiN legs. We measured a dark NEP of 0.7 aW/, which is 1.6 times higher than the theoretically expected phonon noise.

78 FR 938 - Notification of a Public Meeting and a Public Teleconference of the Clean Air Scientific Advisory...

Science.gov (United States)

2013-01-07

.... to 4:00 p.m. (Eastern Time). ADDRESSES: The CASAC Lead Review Panel face-to-face public meeting will... Quality Standards (First External Review Draft--January 2013). DATES: The CASAC Lead Review Panel face-to-face public meeting will be held on Tuesday, February 5, 2013, from 8:30 a.m. to 5:30 p.m. (Eastern...

Mechanical Design and Development of TES Bolometer Detector Arrays for the Advanced ACTPol Experiment

Science.gov (United States)

Ward, Jonathan T.; Austermann, Jason; Beall, James A.; Choi, Steve K.; Crowley, Kevin T.; Devlin, Mark J.; Duff, Shannon M.; Gallardo, Patricio M.; Henderson, Shawn W.; Ho, Shuay-Pwu Patty;

Publication of the bulletin

CERN Multimedia

2007-01-01

The final edition (Nos 51-52/2007 and 1-2-3/2008) of the last Bulletin of the year will appear on Friday 14 December and will cover events at CERN from 17 December 2007 to 18 January 2008. Announcements for publication in this issue should reach the Publication Section (Communication group) or the Staff Association, as appropriate, by noon on Tuesday 11 December. The table below lists the 2008 publication dates for the paper version of the Bulletin and the corresponding deadlines for the submission of announcements. Please note that all announcements must be submitted by 12.00 midday on Tuesdays at the latest. Bulletin publication 2008 Bulletin N° 4-5 Publication: Monday 21 january Submission deadline for announcements: Tuesday 15 January Bulletin N° 6-7 Publication: Monday 4 february Submission deadline for announcements: Tuesday 29 January Bulletin N° 8-9 Publication: Monday 18 february Submission deadline for announcements: Tuesday 12 February Bulletin N° 10-11 P...

78 FR 11202 - Medicare Program; Public Meetings in Calendar Year 2013 for All New Public Requests for Revisions...

Science.gov (United States)

2013-02-15

... for relevant studies published between the application deadline and the public meeting date, in which... include but are not limited to, alcoholic beverages, illegal narcotics, explosives, firearms or other...

Dating of cremated bones

OpenAIRE

Lanting, JN; Aerts-Bijma, AT; van der Plicht, J; Boaretto, E.; Carmi, I.

2001-01-01

When dating unburnt bone, bone collagen, the organic fraction of the bone, is used. Collagen does not survive the heat of the cremation pyre, so dating of cremated bone has been considered impossible. Structural carbonate in the mineral fraction of the bone, however, survives the cremation process. We developed a method of dating cremated bone by accelerator mass spectrometry (AMS), using this carbonate fraction. Here we present results for a variety of prehistoric sites and ages, showing a r...

Using microwaves in Disinsection of dates

International Nuclear Information System (INIS)

Zouba, Anis

2008-01-01

The date palm plays a very significant role in Tunisia in term of culture as well as social, economic and ecological aspects. The production of the dates which is estimated to 120.000 tons/year ensures the principal income for the majority of the oasis population of the South of Tunisia and constitutes the basis for agricultural, industrial, commercial and tourist activities, offering million of working days. The date palm is cultivated mainly for the production of dates which are consumed locally or also exported abroad but for its by-products (food of the cattle, wind breaks, fuel, construction) which are marketed and/ or used in the everyday life thus taking part in the sedentarisation of the populations and the maintenance of a fragile socio-economic balance. The date moth, Ectomyelois ceratoniae Zell. ( L will epidoptera, Pyralidae) is without question the most significant problem of the Tunisian date palm. The infestation of dates in the field and in the storage and packing houses enormously depreciates the marketable quality of dates and risk to compromise exports in particular those of the variety Deglet Nour. rates of infestations of about 20% are often recorded in Tunisia where as the European standards require rates lower than 5%. In Tunisia the desinsectisation of dates is done until now by the use of methyl bromide, its high toxicity substantially reduces the duration of date treatment, and consequently the treated volumes. The replacement of this product becomes an urgent need its use will not be authorized by 2015. Within the framework of a agreement between the Regional Research Center in Oasis Agriculture (CRRAO), The Interprofessional Grouping of Fruits (GIF), and the Italian Company IMETEC, the use one of micro-waves as a desinsectisation method of dates was evaluated. The results of this present work showed that total desinsectisation of dates by microwaves can be obtained only with homogeneous dates in term of water content. Total

Labeling and effectiveness testing; sunscreen drug products for over-the-counter human use; delay of compliance dates. Final rule; delay of compliance dates; request for comments.

Science.gov (United States)

2012-05-11

The Food and Drug Administration (FDA) is delaying the compliance dates for the final rule for over-the-counter (OTC) sunscreen drug products that published in the Federal Register of June 17, 2011 (76 FR 35620). The final rule establishes labeling and effectiveness testing for certain OTC sunscreen products containing specified active ingredients and marketed without approved applications. It also amends labeling claims that are not currently supported by data and lifts the previously-published delay of implementation of the Drug Facts labeling requirements for OTC sunscreens. The 2011 final rule's compliance dates are being delayed because information received after publication of the 2011 final rule indicates that full implementation of the 2011 final rule's requirements for all affected products will require an additional 6 months. This final rule is part of FDA's ongoing review of OTC drug products.

PERCC Tools: Public Health Preparedness for Clinicians

Centers for Disease Control (CDC) Podcasts

2011-08-29

CDC’s Office of Public Health Preparedness and Response funds Preparedness and Emergency Response Research Centers (PERRCs) to examine components of the public health system. This podcast is an overview of mental and behavioral health tools developed by the Johns Hopkins PERRC.  Created: 8/29/2011 by Emergency Risk Communication Branch (ERCB)/Joint Information Center (JIC); Office of Public Health Preparedness and Response (OPHPR).   Date Released: 8/30/2011.

Chronic and Acute Relational Risk Factors for Dating Aggression in Adolescence and Young Adulthood.

Science.gov (United States)

Collibee, Charlene; Furman, Wyndol

2016-04-01

Dating aggression is a prevalent and costly public health concern. Using a relational risk framework, this study examined acute and chronic relational risk factors (negative interactions, jealousy, support, and relationship satisfaction) and their effects on physical and psychological dating aggression. The study also examined the interaction between chronic and acute risk, allowing us to assess how changes in acute risk have differing effects depending on whether the individual is typically at higher chronic risk. A sample of 200 youth (100 female) completed seven waves of data, which spanned 9 years from middle adolescence to young adulthood (M age at Wave 1 = 15.83). Using hierarchical linear modeling, analyses revealed both acute (within-person) and chronic (between-person) levels in jealousy, negative interactions, and relationship satisfaction, were associated with physical and psychological dating aggression. Significant interactions between chronic and acute risk emerged in predicting physical aggression for negative interactions, jealousy, and relationship satisfaction such that those with higher levels of chronic risk are more vulnerable to increases in acute risk. These interactions between chronic and acute risk indicate that risk is not static, and dating aggression is particularly likely to occur at certain times for youth at high risk for dating aggression. Such periods of increased risk may provide opportunities for interventions to be particularly effective in preventing dating aggression or its consequences. Taken together, these findings provide support for the role of relational risk factors for dating aggression. They also underscore the importance of considering risk dynamically.

De la motte au château d’artillerie, la fouille du château de Guingamp (Côtes-d’Armor

Directory of Open Access Journals (Sweden)

Laurent Beuchet

2010-02-01

Full Text Available L’opération d’archéologie préventive du château de Guingamp (Côtes-d’Armor a été réalisée dans le cadre d'un projet de création d'une salle culturelle sur le site du château. La fouille a été menée sur une superficie de 2000 m², sur une durée effective de cinq mois entre octobre 2004 et mars 2005, avec un effectif moyen de sept personnes.À l’issue de la fouille, trois phases principales d’occupation peuvent être identifiées :la motte des Comtes de Guingamp (XIe-XIIe s. ;une enceinte polygon...

Thermoluminescence dating

International Nuclear Information System (INIS)

Price, D.M.

1999-01-01

Thermoluminescence (TL) dating of sediments depends upon the acquisition and long term stable storage of TL energy by crystalline minerals contained within a sedimentary unit. This energy is stored in the form of trapped electrons and quartz sand is the most commonly used mineral employed in the dating process. Prior to the final depositional episode it is necessary that any previously acquired TL is removed by exposure to sunlight. After burial the TL begins to build up again at a rate dependent upon the radiation flux delivered by long-lived isotopes of uranium, thorium and potassium. The presence of rubidium and cosmic radiation generally play a lesser but contributory roll, and the total radiation dose delivered to the TL phosphor is modified by the presence of water. The period since deposition is therefore measured by determining the total amount of stored TL energy, the palaeodose (P), and the rate at which this energy is acquired, the annual radiation dose (ARD). TL dating may be applied to eolian, fluvial, coastal and in some cases, marine sediments. the technique is also successfully applied to volcanic materials and to a certain extent to archeological specimens

Single-machine scheduling with release dates, due dates and family setup times

NARCIS (Netherlands)

Schutten, Johannes M.J.; van de Velde, S.L.; van de Velde, S.L.; Zijm, Willem H.M.

1996-01-01

We address the NP-hard problem of scheduling n independent jobs with release dates, due dates, and family setup times on a single machine to minimize the maximum lateness. This problem arises from the constant tug-of-war going on in manufacturing between efficient production and delivery

Make a date with a tree

International Nuclear Information System (INIS)

Baillie, M.; Pilcher, J.

1988-01-01

The paper concerns the use of dendrochronology to check the accuracy of radiocarbon dating. The Belfast chronology is described - this involves wood samples precisely dated by tree ring analysis and analysed by high-precision radiocarbon analysis. The analysis resulted in the first continuous high-precision calibration of the radiocarbon time-scale, and confirmed the relationship between radiocarbon dates and tree-ring dates. The use of radiocarbon dating to reveal the age of wood samples that have too few rings to produce an accurate date, is also outlined. (U.K.)

Direct dating of human fossils.

Science.gov (United States)

Grün, Rainer

2006-01-01

The methods that can be used for the direct dating of human remains comprise of radiocarbon, U-series, electron spin resonance (ESR), and amino acid racemization (AAR). This review gives an introduction to these methods in the context of dating human bones and teeth. Recent advances in ultrafiltration techniques have expanded the dating range of radiocarbon. It now seems feasible to reliably date bones up to 55,000 years. New developments in laser ablation mass spectrometry permit the in situ analysis of U-series isotopes, thus providing a rapid and virtually non-destructive dating method back to about 300,000 years. This is of particular importance when used in conjunction with non-destructive ESR analysis. New approaches in AAR analysis may lead to a renaissance of this method. The potential and present limitations of these direct dating techniques are discussed for sites relevant to the reconstruction of modern human evolution, including Florisbad, Border Cave, Tabun, Skhul, Qafzeh, Vindija, Banyoles, and Lake Mungo. (c) 2006 Wiley-Liss, Inc.

Evaluation of olivine refractories for TES

Science.gov (United States)

Gay, B. M.; Cochrane, R. L.; Palmour, H., III; Paisley, M. J.

1982-02-01

The principal objectives of this program are to (1) experimentally determine the degree of improvement in thermal and mechanical performance that can be obtained with an olivine thermal storage brick made of domestic materials using advanced processing techniques compared with state-of-the-art as represented by commercial European bricks, (2) conduct an assessment of existing German ceramic process technology and determine its adaptability to domestic raw materials and manufacturing practices, and (3) investigate, on a limited basis, method for further improvement of domestic-olivine brick. To date, accomplishments include (1) installation of improved, computer-based instrumentation, (2) the use of this system to determine performance characteristics of a set of heat storage refractories under cyclic use conditions, (3) acquisition of the services of a knowledgeable European consultant, (4) continued lab-scale process/property optimization studies, and (5) comparative testing of olivine-based and magnesite-based heat storage refractories in the calorimetric test facility at Purdue University.

Safe Sex Messages Within Dating and Entertainment Smartphone Apps: A Review.

Science.gov (United States)

Huang, Evelyn Tzu-Yen; Williams, Henrietta; Hocking, Jane S; Lim, Megan Sc

2016-11-08

Smartphone apps provide a new platform for entertainment, information distribution, and health promotion activities, as well as for dating and casual sexual encounters. Previous research has shown high acceptability of sexual health interventions via smartphone apps; however, sexual health promotion apps were infrequently downloaded and underused. Integrating sexual health promotion into established apps might be a more effective method. The objective of our study was to critically review popular sex-related apps and dating apps, in order to ascertain whether they contain any sexual health content. Part 1: In January 2015, we used the term "sexual" to search for free apps in the Apple iTunes store and Android Google Play store, and categorized the sexual health content of the 137 apps identified. Part 2: We used the term "dating" to search for free geosocial-networking apps in the Apple iTunes and Android Google Play stores. The apps were downloaded to test functionality and to determine whether they included sexual health content. Part 1: Of the 137 apps identified, 15 (11.0%) had sexual health content and 15 (11.0%) contained messages about sexual assault or violence. The majority of the apps did not contain any sexual health content. Part 2: We reviewed 60 dating apps: 44 (73%) targeting heterosexual users, 9 (15%) targeting men who have sex with men (MSM), 3 (5%) targeting lesbian women, and 4 (7%) for group dating. Only 9 dating apps contained sexual health content, of which 7 targeted MSM. The majority of sex-related apps and dating apps contained no sexual health content that could educate users about and remind them of their sexual risks. Sexual health practitioners and public health departments will need to work with app developers to promote sexual health within existing popular apps. For those apps that already contain sexual health messages, further study to investigate the effectiveness of the content is needed. ©Evelyn Tzu-Yen Huang, Henrietta

Single-machine scheduling with release dates, due dates, and family setup times

NARCIS (Netherlands)

J.M.J. Schutten (Marco); S.L. van de Velde (Steef); W.H.M. Zijm

1996-01-01

textabstractWe address the NP-hard problem of scheduling n independent jobs with release dates, due dates, and family setup times on a single machine to minimize the maximum lateness. This problem arises from the constant tug-of-war going on in manufacturing between efficient production and delivery

Witnessing Interparental Violence and Acceptance of Dating Violence as Predictors for Teen Dating Violence Victimization.

Science.gov (United States)

Karlsson, Marie E; Temple, Jeff R; Weston, Rebecca; Le, Vi Donna

2016-04-01

We examined the association between witnessing interparental violence, attitudes about dating violence, and physical and psychological teen dating violence (TDV) victimization. Participants were 918 teens with dating experience. Witnessing interparental violence and acceptance of dating violence were significant predictors of TDV victimization. Acceptance of dating violence was also a partial mediator between witnessing interparental violence and TDV victimization. Witnessing mother-to-father violence and acceptance of female-perpetrated violence were the most consistent predictors. TDV programs aiming to prevent victimization could benefit from targeting youth exposed to father-to-mother and mother-to-father violence, targeting attitudes about violence, and tailoring interventions to gender-specific risk factors. © The Author(s) 2015.

AMS Radiocarbon Dating at Notre Dame

Science.gov (United States)

Howard, Sean

2014-09-01

Current development of a local radiocarbon dating method using Accelerator Mass Spectrometry (AMS) at the University of Notre Dame seeks to provide sensitive, reproducible, and accurate measurements for future interdisciplinary projects. While AMS has been the premier radiocarbon dating method for a few decades, repurposing Notre Dame's FN Tandem accelerator for radiocarbon dating has provided many unique challenges. Experiments have shown radiocarbon dating possible and reproducible using the FN Tandem accelerator, found optimal settings for said accelerator, and established sensitivity limits comparable to dedicated radiocarbon dating facilities. In addition, there is ongoing work to create a local chemistry lab to convert organic artifacts into graphite samples to be dated locally. Once the chemistry side has been completed, several artifacts from the IAEA's radiocarbon intercomparison have been procured. Dating these previously studied artifacts will provide an additional measure on the accuracy and repeatability of both the accelerator and chemical treatment. Provided that these IAEA artifacts are dated successfully, exciting projects will ensue, such as the authentication of artwork and dating of anthropological samples.

Double the dates and go for Bayes - Impacts of model choice, dating density and quality on chronologies

Science.gov (United States)

Blaauw, Maarten; Christen, J. Andrés; Bennett, K. D.; Reimer, Paula J.

2018-05-01

Reliable chronologies are essential for most Quaternary studies, but little is known about how age-depth model choice, as well as dating density and quality, affect the precision and accuracy of chronologies. A meta-analysis suggests that most existing late-Quaternary studies contain fewer than one date per millennium, and provide millennial-scale precision at best. We use existing and simulated sediment cores to estimate what dating density and quality are required to obtain accurate chronologies at a desired precision. For many sites, a doubling in dating density would significantly improve chronologies and thus their value for reconstructing and interpreting past environmental changes. Commonly used classical age-depth models stop becoming more precise after a minimum dating density is reached, but the precision of Bayesian age-depth models which take advantage of chronological ordering continues to improve with more dates. Our simulations show that classical age-depth models severely underestimate uncertainty and are inaccurate at low dating densities, and also perform poorly at high dating densities. On the other hand, Bayesian age-depth models provide more realistic precision estimates, including at low to average dating densities, and are much more robust against dating scatter and outliers. Indeed, Bayesian age-depth models outperform classical ones at all tested dating densities, qualities and time-scales. We recommend that chronologies should be produced using Bayesian age-depth models taking into account chronological ordering and based on a minimum of 2 dates per millennium.

Optical stimulated luminescence (OSL) dating

International Nuclear Information System (INIS)

Banerjee, D.

1999-01-01

Since the pioneering work by Huntley et al. (1985), optical dating is being increasingly recognised as an important technique for establishing a time frame of deposition of sediments (Aitken, 1998). Optical dating differs from thermoluminescence (TL) dating in that visible/infrared light from lasers or LEDs (light-emitting-diodes) is used as a means of stimulation, in contrast to thermal stimulation. It has several advantages over TL dating: (i) the resetting of the OSL (optically stimulated luminescence) clock is more effective than that of TL clock; for sediments transported under water or in other situations where the sediment grains have undergone inhomogeneous bleaching, this property ensures that ages based on optical dating are generally more reliable than TL ages, (ii) the optical dating technique is non-destructive, and multiple readouts of the optical signal is possible; this feature has resulted in the development of single-aliquot and single-grain protocols (Murray and Wintle, 1999; Banerjee et al. 1999), (iii) the sample is not heated as in TL; thus, spurious luminescence is avoided and there is a significant reduction in blackbody radiation. Dating of materials which change phase on heating is also practical, and finally, (iv) thermal quenching of luminescence is negligible, allowing accurate estimation of kinetic parameters using standard techniques and providing access to deep OSL traps. This characteristic may be helpful in extending the limits of optical dating beyond the last 150 ka from a global point of view

The scientific dating of standing buildings.

Science.gov (United States)

Alcock, Nathaniel W

2017-11-17

The techniques of dendrochronology (tree-ring dating) and radiocarbon (14C) dating are described, as they are applied to historic buildings. Both rely on determining the felling dates of the trees used in their construction. For dendrochronology, the construction of master chronologies and the matching of individual ring-width sequences to them is described and, for radiocarbon dating, the use of tree-ring results in calibration. Results of dating are discussed, ranging from the cathedrals of Peterborough and Beauvais and the development of crown-post roof structures, to the dating and identification of standing medieval peasant houses, particularly those built using cruck construction.

78 FR 1825 - Importation of Fresh Barhi Dates From Israel Into the United States

Science.gov (United States)

2013-01-09

... Service, USDA. ACTION: Notice. SUMMARY: We are advising the public that we have prepared a pest risk analysis that evaluates the risks associated with the importation of fresh dates of the cultivar Barhi from Israel into the United States. Based on that analysis, we have concluded that the application of one or...

Utilization of dating apps by men who have sex with men for persuading other men toward substance use

OpenAIRE

Boonchutima S; Kongchan W

2017-01-01

Smith Boonchutima, Watsayut Kongchan Department of Public Relations, Faculty of Communication Arts, Chulalongkorn University, Bangkok, Thailand Background: Dating apps play a major role in connecting men who are interested in meeting other men for sex. Besides finding a partner, these tools are also exploited for other activities such as encouraging people to get involved in the habit of illicit drug consumption (substance use). Methods: This study evaluated the overall usage of dating apps a...

76 FR 22677 - Pacific Fishery Management Council; Public Meeting

Science.gov (United States)

2011-04-22

... Groundfish Management Team (GMT). The meeting is open to the public. DATES: The conference call will be held... the Groundfish Management Team to review the developing Ecosystem Fishery Management Plan. The GMT... Fishery Management Council; Public Meeting AGENCY: National Marine Fisheries Service (NMFS), National...

Publication of the Bulletin in 2006

CERN Multimedia

2005-01-01

Deadlines for the submission of announcements The table below lists the 2006 publication dates for the paper version of the Bulletin and the corresponding deadlines for the submission of announcements. Please note that all announcements must be submitted by 12.00 midday on Tuesdays at the latest and that, for organisational reasons, we will no longer be able to accept those which reach us after this deadline. Bulletin publication 2006 Bulletin No. Week number Publication date Submission of announcements (before 12.00 midday) 3-4 Monday 16 January Tuesday 10 January 5-6 Monday 30 January Tuesday 24 January 7-8 Monday 13 February Tuesday 7 February 9-10 Monday 27 February Tuesday 21 February 11-12 Monday 13 March Tuesday 7 March 13-14 Monday 27 March Tuesday 21 March 15-16 Monday 10 April Tuesday 4 April 17-18 Monday 24 April Tuesday 18 April 19-20 Monday 8 May Tuesday 2 May 21-22 Monday 22 May Tuesday 16 May 23-24 Monday 5 June Tuesday 30 May 2...

Publication of the Bulletin in 2006

CERN Multimedia

Publications Section, DSU-CO

2006-01-01

Deadlines for the submission of announcements The table below lists the 2006 publication dates for the paper version of the Bulletin and the corresponding deadlines for the submission of announcements. Please note that all announcements must be submitted by 12.00 midday on Tuesdays at the latest and that, for organisational reasons, we will no longer be able to accept those which reach us after this deadline. Bulletin publication 2006 Bulletin No. Week number Publication date Submission of announcements (before 12.00 midday) 5-6 Monday 30 January Tuesday 24 January 7-8 Monday 13 February Tuesday 7 February 9-10 Monday 27 February Tuesday 21 February 11-12 Monday 13 March Tuesday 7 March 13-14 Monday 27 March Tuesday 21 March 15-16 Monday 10 April Tuesday 4 April 17-18 Monday 24 April Tuesday 18 April 19-20 Monday 8 May Tuesday 2 May 21-22 Monday 22 May Tuesday 16 May 23-24 Monday 5 June Tuesday 30 May 25-26 Monday 19 June Tuesday 13 June 27-2...

76 FR 55368 - Notice of Commission Meeting and Public Hearing

Science.gov (United States)

2011-09-07

... special public meeting to be held on October 21, 2011 at 1 p.m. in the Patriots Theater at the War... the draft regulations through April 15, 2011 and received oral comment during six public hearing... ten days prior to the meeting date. Additional public records relating to the dockets may be examined...

Tritium/Helium-3 dating of groundwaters around Chernobyl site

Energy Technology Data Exchange (ETDEWEB)

Fourre, E.; Jean-Baptiste, P.; Dapoigny, A.; Baumier, D. [CEA, CNRS, LSCE, UVSQ, IPSL, F-91191 Gif Sur Yvette (France); Aquilina, L.; Labasque, T. [Geosciences Rennes - GR, CNRS UMR 6118, F-35000 Rennes (France); La Salle, C. Le Gal; Lancelot, J. [Nimes Univ, GIS/CEREGE, Nimes (France)

2010-07-01

Complete text of publication follows: Estimates of groundwater age allow geo-hydrologists to calculate recharge rates, assess aquifers contamination risks, and calibrate complex flow models. The {sup 3}H/{sup 3}He dating method offers a direct measure for the time since groundwater had its last gas exchange with the atmosphere. The aim of this study is to bring temporal constraints to the radionuclide transport model in the Chernobyl test site. Samples have been collected in the exclusion zone, close to a trench filled with low-level wastes, both in the upper eolian sand layer and deeper in the alluvial deposit. CFCs and SF6 have been measured as well in order to compare dating methods. The {sup 3}H/{sup 3}He results presented in Figure 1 clearly show increasing ages with depth (below groundwater table). This fully supports the groundwater stratification developed in the hydrogeological model of the area. The infiltration recharge rate is a sensitive key parameter of the model, and our data are consistent with a rate about 200 mm/yr (maximum estimate)

Bullying and HIV Risk Among High School Teenagers: The Mediating Role of Teen Dating Violence.

Science.gov (United States)

Okumu, Moses; Mengo, Cecilia; Ombayo, Bernadette; Small, Eusebius

2017-10-01

Teen dating violence (TDV), bullying, and HIV risk behaviors are public health concerns that impact adolescents in the United States. National estimates reveal high rates of these risk behaviors among high school students. Based on theoretical and empirical evidence, we hypothesized that experiencing teen dating violence (sexual and physical) would mediate the impact of bullying on HIV risk. Data were from the 2013 National Youth Behavior Risk Surveillance Survey (YRBSS) among students who answered questions on bullying, TDV, and HIV risk (N = 13,571). The YRBSS is conducted biennially among 9th- to 12th-grade students nationally. We used multiple regression analysis and Hayes' SPSS process macro to examine the 2 study hypotheses. Findings from bivariate analysis suggest an association between bullying and HIV risk. The study also found associations between physical, sexual teen dating violence and HIV risk. Results also indicate that both physical and sexual teen dating violence mediate the association between bullying and HIV risk. Our findings suggest that multidimensional interventions should be developed to reduce the rate of teen dating violence and combat bullying as a preventative method for HIV risk among high school students. © 2017, American School Health Association.

How AMS dating changed my life

International Nuclear Information System (INIS)

Spriggs, M.

2001-01-01

Accelerator mass spectrometry (AMS) radiocarbon dating was developed in the late 1970s. Remembering back to a time before AMS dating was available to archaeologists is a bit like trying to remember how we ever survived without desktop computers, email or automatic teller machines. My own particular interest in AMS dating was an inevitable offshoot from my long-established interest in chronometric hygiene, or 'getting the dates right'. In this paper I attempt to illustrate that accurate dating matters, by discussing some examples of AMS dating projects with which I have been involved over the last six years or so. In relation to these projects, AMS has given us the ability to date sites which we could not before. It has enabled us to provide more detailed stratigraphies when datable materials are rare. It has allowed us to date materials we could not date before, such as rock art pigments. It has been able to provide indications of the degree of site disturbance in the absence of other obvious forms of evidence. And it has allowed us to assess claims for the antiquity of particular material cultural types and faunal introductions. (author). 41 refs

Second Quaternary dating workshop

Energy Technology Data Exchange (ETDEWEB)

NONE

1999-11-01

The second Quaternary dating methods workshop was held at Lucas Heights and sponsored by ANSTO and AINSE. Topics covered include, isotope and thermoluminescence dating, usage of accelerator and thermal ionisation mass spectrometry in environmental studies emphasizing on the methodologies used and sample preparation

Second Quaternary dating workshop

International Nuclear Information System (INIS)

1999-01-01

The second Quaternary dating methods workshop was held at Lucas Heights and sponsored by ANSTO and AINSE. Topics covered include, isotope and thermoluminescence dating, usage of accelerator and thermal ionisation mass spectrometry in environmental studies emphasizing on the methodologies used and sample preparation

Microscale radiocarbon dating of paintings

International Nuclear Information System (INIS)

Hendriks, Laura; Hajdas, Irka; McIntyre, Cameron; Kueffner, Markus; Ferreira, Ester S.B.; Scherrer, Nadim C.

2016-01-01

In this paper, radiocarbon dating of paintings using minimal sample sizes has been investigated, in an effort to address the problem of limited access to sample material in paintings. 14 C analyses were conducted on signed and dated paintings from two Swiss artists of the twentieth century. The selected paintings dated from the 1930s and 1960s, provided the opportunity to evaluate the dating accuracy on paintings realized before and after 1950 AD when the 14 C bomb peak was created, as a result of the nuclear tests conducted in the 1950/1960s. The work focused on the one hand on minimizing the size of the canvas sample required for accelerator mass spectrometer radiocarbon measurement on the gas ion source of the MICADAS and, on the other hand, on testing the possibility of dating the organic binder of the paint. Following careful characterization of the paint composition by X-ray fluorescence spectroscopy, Fourier transformed infrared spectroscopy, and Raman spectroscopy, paints containing no other carbon source than the natural organic binder were identified and dated. (orig.)

Microscale radiocarbon dating of paintings

Energy Technology Data Exchange (ETDEWEB)

Hendriks, Laura; Hajdas, Irka; McIntyre, Cameron [ETH Zurich, Ion Beam Physics, Zurich (Switzerland); Kueffner, Markus; Ferreira, Ester S.B. [SIK-ISEA, Zurich, Zurich (Switzerland); Scherrer, Nadim C. [Bern University of Applied Sciences, HKB, Bern (Switzerland)

2016-03-15

In this paper, radiocarbon dating of paintings using minimal sample sizes has been investigated, in an effort to address the problem of limited access to sample material in paintings. {sup 14}C analyses were conducted on signed and dated paintings from two Swiss artists of the twentieth century. The selected paintings dated from the 1930s and 1960s, provided the opportunity to evaluate the dating accuracy on paintings realized before and after 1950 AD when the {sup 14}C bomb peak was created, as a result of the nuclear tests conducted in the 1950/1960s. The work focused on the one hand on minimizing the size of the canvas sample required for accelerator mass spectrometer radiocarbon measurement on the gas ion source of the MICADAS and, on the other hand, on testing the possibility of dating the organic binder of the paint. Following careful characterization of the paint composition by X-ray fluorescence spectroscopy, Fourier transformed infrared spectroscopy, and Raman spectroscopy, paints containing no other carbon source than the natural organic binder were identified and dated. (orig.)

Predicting Improvement After a Bystander Program for the Prevention of Sexual and Dating Violence.

Science.gov (United States)

Hines, Denise A; Palm Reed, Kathleen M

2015-07-01

Although evidence suggests that bystander prevention programs are promising interventions for decreasing sexual violence and dating violence on college campuses, there have been no studies to date evaluating moderators of bystander program effectiveness. The current study evaluates whether different demographic characteristics, attitudes, knowledge, and behaviors at pretest predict change over a 6-month follow-up for students who participated in a bystander prevention program. Participants in the three assessments (pretest, posttest, 6-month follow-up) included 296 college students who were mandated to attend a bystander program during their first year orientation. Analyses showed that with few exceptions, the bystander program worked best for students who were most at risk given their pretest demographics and levels of attitudes condoning dating violence and sexual violence, bystander efficacy, and bystander behaviors. Results are discussed in terms of suggestions for future research. © 2014 Society for Public Health Education.

[Brazilian bibliographical output on public oral health in public health and dentistry journals].

Science.gov (United States)

Celeste, Roger Keller; Warmling, Cristine Maria

2014-06-01

The scope of this paper is to describe characteristics of the scientific output in the area of public oral health in journals on public health and dentistry nationwide. The Scopus database of abstracts and quotations was used and eight journals in public health, as well as ten in dentistry, dating from 1947 to 2011 were selected. A research strategy using key words regarding oral health in public health and key words about public health in dentistry was used to locate articles. The themes selected were based on the frequency of key words. Of the total number of articles, 4.7% (n = 642) were found in oral health journals and 6.8% (n = 245) in public health journals. Among the authors who published most, only 12% published in both fields. There was a percentile growth of public oral health publications in dentistry journals, though not in public health journals. In dentistry, only studies indexed as being on the topic of epidemiology showed an increase. In the area of public health, planning was predominant in all the phases studied. Research to evaluate the impact of research and postgraduate policies in scientific production is required.

Publication of the bulletin in 2009

CERN Document Server

DG Unit

2009-01-01

The table below lists the 2009 publication dates for the paper version of the Bulletin and the corresponding deadlines for the submission of announcements. Please note that all announcements must be submitted by 12.00 midday on Tuesdays at the latest. Bulletin No. Week number Submission of announcements (before 12.00 midday) Publication date 3-4 Tuesday 6 January Monday 12 January 5-6 Tuesday 20 January Monday 26 January 7-8 Tuesday 3 February Monday 9 February 9-10 Tuesday 17 February Monday 23 February 11-12 Tuesday 3 March Monday 9 March 13-14 Tuesday 17 March Monday 23 March 15-16-17 (Easter issue) Tuesday 31 March Monday 6 April 18-19 Tuesday 21 April Monday 27 April 20-21 Tuesday 5 May Monday 11 May 22-23 Tuesday 19 May Monday 25 May 24-25 ...

AGAR PENULISAN RESEP TETAP UP TO DATE

Directory of Open Access Journals (Sweden)

Rahmatini Rahmatini

2009-09-01

in dosage form and give it to the patient. Prescription is the final embodiment of competence, knowledge and expertise of physicians in applying his knowledge in the field of pharmacology and therapy. Writing prescriptions should be written clearly, so that it can be read by officials at the pharmacy. Not-clearly-written recipe will cause the error when compounding / preparation of drugs and the usage of prescription drugs.TINJAUAN PUSTAKA102The science of medicine is always changing, new drugs,always appeared in public. Generally, a physician must follow developments in drug therapy. When the side-effect from medication appear that should be known and can be prevented by a physician, the physician will deal with the law. To make prescribing up to date, a doctor should collect a variety of available information information source that can be used are: a reference book, Compendium of drugs, the National Essential Medicines List and guide therapy, medication Bulletin, Journal of Medicine, Center for drug information, information via computer, sources of information from the pharmaceutical industry, and verbal information. Compare to the advantages and disadvantages of various sources of information. Duty of a doctor is doing the best way to keep up to date by signing up resources that can be utilized. Find at least one of the following: (1 medical journal: (2 drug bulletin, (3 reference books or reference to clinical pharmacology, (4 commission and consultant therapy, or a magister pharmacology graduated. With their knowledge and ability to critically assess any form of information, it is expected physician keep up to date in writing prescriptions Key words: Prescribing – up to date

NERC radiocarbon dating: 1975-1985

International Nuclear Information System (INIS)

Bowen, D.Q.; Harkness, D.D.

1986-06-01

The paper reviews the work of the Natural Environment Research Council Radiocarbon Dating Laboratory in connection with Quaternary research, over the last decade. A description is given of the development of the dating service and in-house research. Quaternary research investigations aided by radiocarbon dating are described under the topic headings: The late Devensian glacial maximum, late glacial, middle Devensian, palaeomagnetic secular variation in lake sediments, vegetational history, faunal history, palaeolimnology, ground water, volcanology, periglacial research, palaoeohydrology, geomorphology, quaternary events in low-latitudes, environmental archaeology, archaeology, deep sea sediments, continental shelf, coastal geomorphology, and radiocarbon dating in Antarctica. (U.K.)

Radiocarbon dating of soils, a review

International Nuclear Information System (INIS)

Scharpenseel, H.W.; Schiffmann, H.

1977-01-01

The application of radiocarbon dating techniques for pedological purposes is reviewed in chronological sequence of its phases of introduction. Initially dating of charcoal and buried paleosols was dominating and accompanied by few soil dating attempts of recent soil formations on the basis of extracted humic acid-C. The following controversy regarding the potentialities and limitations of recent soil dating, still being involved in the intact turnover processes of modern biodynamics, led to intensive search for the relatively oldest, most favorable C-fraction, particularly a biologically inert C-fraction of the organic C-pool. Inclusion of C-14 dating in pedogenetic working concepts required soil profile date-scanning in order to reveal the age versus depth interdependence. (orig./HK) [de

Dating of cremated bones

NARCIS (Netherlands)

Lanting, JN; Aerts-Bijma, AT; van der Plicht, J; Boaretto, E.; Carmi, I.

2001-01-01

When dating unburnt bone, bone collagen, the organic fraction of the bone, is used. Collagen does not survive the heat of the cremation pyre, so dating of cremated bone has been considered impossible. Structural carbonate in the mineral fraction of the bone, however, survives the cremation process.

Publication of the Bulletin

CERN Multimedia

The final edition (Nos 51-52/2009 and 1-2/2010) of the last Weekly Bulletin of the year will be published on Friday 11 December and will cover events at CERN from 14 December 2009 to 8 January 2010. Announcements for publication in this issue should reach the Publication Section (Communications group) or the Staff Association, as appropriate, by noon on Tuesday 8 December. Bulletin publication 2010 The table below lists the 2010 publication dates for the paper version of the Bulletin and the corresponding deadlines for the submission of announcements. Please note that all announcements must be submitted by 12.00 midday on Tuesdays at the latest. Bulletin No. Week number Submission of announcements (before 12.00 midday) Bulletin Web version Bulletin Paper version 2-3 Tuesday 5 January Friday 8 and 15 January Wednesday 13 J...

Radiocarbon dating

International Nuclear Information System (INIS)

Lazos R, L.

2005-01-01

The application of the radiocarbon dating in archaeology has not served only to solve problems related with the establishment of chronologies, but also in the development of archaeological methods of excavation and interpretation. This has been possible because the dating method by radiocarbon provides a common temporary scale that transcends the cultural and regional frontiers. It is even spoken of the revolution that has meant the fact that the application of this method has allowed to the archaeologist to pass from the construction of chronologies until the evaluation and dynamic interpretation of the archaeological data to build theories. This work explains and compares methods for the detection of 14 C, as the gas counting, the liquid scintillation counting and the mass spectrometry with accelerators. (Author)

31 CFR 596.302 - Effective date.

Science.gov (United States)

2010-07-01

... FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY TERRORISM LIST GOVERNMENTS SANCTIONS REGULATIONS General Definitions § 596.302 Effective date. The term effective date refers to the effective date of the...

Social Information Processing in Dating Conflicts: Reciprocal Relationships With Dating Aggression in a One-Year Prospective Study.

Science.gov (United States)

Calvete, Esther; Orue, Izaskun; Gamez-Guadix, Manuel; López de Arroyabe, Elena

2016-04-01

The aim of this study was to assess the reciprocal associations among social information processing (SIP) in dating conflicts and the perpetration of dating aggression. A first step involved the development of a measure (The Social Information Processing Questionnaire in Dating Conflicts, SIPQ-DC) to assess social information in scenarios of conflict with dating partners. A sample of 1,272 adolescents (653 girls, 619 boys; Mage = 14.74 years, SD = 1.21) completed measures of SIP and dating aggression perpetration in two different times, which were spaced 1 year apart. Confirmatory factor analyses provided support for a model with five correlated factors for the SIPQ-DC, namely, hostile attribution, anger, aggressive response access, anticipation of positive consequences for oneself, and anticipation of negative consequences for partners. Although the perpetration of dating aggression at T1 was cross-sectionally associated with all the SIP components, anger was the only component that predicted the residual increase in dating aggression behavior over time. The perpetration of dating aggression predicted a worsening of cognitive-emotional processes involved in dating conflicts. Some longitudinal paths were significant only in male adolescents. In conclusion, relationships among SIP and aggression are reciprocal. Gender differences in longitudinal paths can contribute to explaining men's higher perpetration of violence in adulthood. © The Author(s) 2014.

The Empowering of Public Sector Officers in the Mauritian Public Sector in the Context of Reforms: How Far Has Management Education Helped?

Science.gov (United States)

Bhiwajee, Soolakshna Lukea; Garavan, Thomas N.

2016-01-01

Purpose: The purpose of this study is to provide insights about the usefulness of management education for the public sector in the Republic of Mauritius, which embarked on reforms initiatives around two decades ago. In this context, public officers were encouraged to follow specialised management courses. However, as at date, there is…

76 FR 13182 - Science Advisory Board Staff Office; Notification of a Public Meeting of the Science Advisory...

Science.gov (United States)

2011-03-10

... a Public Meeting of the Science Advisory Board Committee on Science Integration for Decision Making... Agency (EPA or Agency) Science Advisory Board (SAB) Staff Office announces a public meeting of the SAB Committee on Science Integration for Decision Making. DATES: The meeting dates are March 29, 2011 from 9 a.m...

Trends and Determinants of Up-to-date Status with Colorectal Cancer Screening in Tennessee, 2002-2008

Directory of Open Access Journals (Sweden)

Sreenivas P Veeranki

2014-01-01

Conclusions: TN adults who are up-to-date status with CRC screening are increasing, but not across all socio-demographic subgroups. The results identified specific subgroups to be targeted by screening programs, along with continued efforts to educate public and providers about the importance of CRC screening.

76 FR 65362 - Energy Conservation Program: Compliance Date Regarding the Test Procedures for Walk-In Coolers...

Science.gov (United States)

2011-10-21

... Freezers and the Certification for Metal Halide Lamp Ballasts and Fixtures AGENCY: Office of Energy... the Department of metal halide lamp ballasts and fixtures. DATES: This final rule is effective... starting October 12, 2011; that is, 180 days after publication of the test procedure final rule. DOE...

Teen Dating Violence Prevention: Cluster-Randomized Trial of Teen Choices, an Online, Stage-Based Program for Healthy, Nonviolent Relationships.

Science.gov (United States)

Levesque, Deborah A; Johnson, Janet L; Welch, Carol A; Prochaska, Janice M; Paiva, Andrea L

2016-07-01

Teen dating violence is a serious public health problem. A cluster-randomized trial was conducted to assess the efficacy of Teen Choices , a 3-session online program that delivers assessments and individualized guidance matched to dating history, dating violence experiences, and stage of readiness for using healthy relationship skills. For high risk victims of dating violence, the program addresses readiness to keep oneself safe in relationships. Twenty high schools were randomly assigned to the Teen Choices condition ( n =2,000) or a Comparison condition ( n =1,901). Emotional and physical dating violence victimization and perpetration were assessed at 6 and 12 months in the subset of participants (total n =2,605) who reported a past-year history of dating violence at baseline, and/or who dated during the study. The Teen Choices program was associated with significantly reduced odds of all four types of dating violence (adjusted ORs ranging from .45 to .63 at 12 months follow-up). For three of the four violence outcomes, participants with a past-year history of that type of violence benefited significantly more from the intervention than students without a past-year history. The Teen Choices program provides an effective and practicable strategy for intervention for teen dating violence prevention.

Obsidian dating prospects

International Nuclear Information System (INIS)

Ambrose, W.

1997-01-01

Full text: Developments in the nuclear industry have shown that some of the problems related to the glassification of waste for long term storage are centred on the rate of glass weathering in various repositories. Long term weathering of artificial glasses is paralleled by the archaeological problem of determining hydration rates in obsidian artefacts as a means of dating their manufacture. Figures available for sites in Papua New Guinea indicate that the weathering rate is sufficiently fast to render conventional hydration measurement completely unreliable. This follows from the range of calculated surface reduction rates which range between .0002μ to .004μ per year depending on the site's location and the obsidian source. Hydration rates for key Papua New Guinea obsidians have been determined from long term experimental laboratory exposure and these are used to evaluate the age of obsidians from selected archaeological sites. By adopting a strategy of measuring hydration in concealed fissures both the weathering rate and the dating of the Papua New Guinea obsidians have been successfully achieved. The dissolution rates of natural obsidians could be useful in considering weathering rates for artificial glasses. An improved system for calculating the annual effective hydration temperature is presented which gives a better control of micro-environmental temperature in its crucial rate determining role. The combined result of these developments gives obsidian hydration dating an enhanced capacity to be a useful and independent dating system

Peer Group Influences on Adolescent Dating Aggression

Science.gov (United States)

Connolly, Jennifer; Friedlander, Laura

2009-01-01

The peer group is a critical social context for dating and romantic relationships. Peer groups provide opportunities to meet potential dating partners and set norms for acceptable dating behaviors. This article explores how peer groups influence dating and dating aggression, as well as how they can be used in prevention efforts. It also reviews…

Dangerous quantities of radioactive material (D-values). Emergency preparedness and response. Publication date: August 2006

International Nuclear Information System (INIS)

2006-08-01

Radioactive material is widely used in industry, medicine, education and agriculture. In addition, it occurs naturally. The health risk posed by these materials vary widely depending on many factors, the most important of which are the amount of the material involved and its physical and chemical form. Therefore, there is a need to identify the quantity and type of radioactive material for which emergency preparedness and other arrangements (e.g. security) are warrant due to the health risk they pose. The aim of this publication is to provide practical guidance for Member States on that quantity of radioactive material that may be considered dangerous. A dangerous quantity is that, which if uncontrolled, could be involved in a reasonable scenario resulting in the death of an exposed individual or a permanent injury, which decreases that person's quality of life. This publication is published as part of the IAEA Emergency Preparedness and Response Series. It supports several publications including: the IAEA Safety Requirements 'Preparedness and Response for a Nuclear or Radiological Emergency', IAEA Safety Standards Series No. GS-R-2. IAEA, Vienna (2002); IAEA Safety Guide 'Categorization of Radioactive Sources', IAEA Safety Standards Series No RS-G-1.9, IAEA, Vienna (2005) and IAEA Safety Guide 'Arrangements for Preparedness for a Nuclear or Radiological Emergency' IAEA Safety Standards Series No. GS-G-2.1, IAEA, Vienna (2006). The procedures and data in this publication have been prepared with due attention to accuracy. However, as part of the review process, they undergo ongoing quality assurance checks. Comments are welcome and, following a period that will allow for a more extensive review, the IAEA may revise this publication as part of the process of continuous improvement. The publication uses a number of exposure scenarios, risk models and dosimetric data, which could be used during the response to nuclear or radiological emergency or other purposes

36 CFR 60.13 - Publication in the Federal Register and other NPS notification.

Science.gov (United States)

2010-07-01

... 36 Parks, Forests, and Public Property 1 2010-07-01 2010-07-01 false Publication in the Federal Register and other NPS notification. 60.13 Section 60.13 Parks, Forests, and Public Property NATIONAL PARK...-day commenting period from date of publication will be provided. When necessary to assist in the...

78 FR 15680 - Information Sharing With Agency Stakeholders: Public Meeting

Science.gov (United States)

2013-03-12

...] Information Sharing With Agency Stakeholders: Public Meeting AGENCY: Animal and Plant Health Inspection... stakeholders regarding cross-Agency strategic priorities. We are also announcing that APHIS is hosting a public... opportunity for stakeholders to ask questions and share their perspective. DATES: The meeting will be held on...

Dating methods enter high-school physics curriculum

International Nuclear Information System (INIS)

Beck, L.

2002-01-01

The new curriculum of physics of the upper forms in French grammar schools includes a part dedicated to ''nuclear transformations''. One of the applications most often considered in manuals is isotopic dating and generally several methods are explained to pupils: carbon 14 dating, potassium-argon dating (used for dating ancient lava layers) and uranium-thorium dating (used for dating corals). The author reviews with a critical eye the content of manuals and laments through concrete examples the lack of exactness and accuracy of some presentations. (A.C.)

Radiocarbon dating of iron artefacts

Energy Technology Data Exchange (ETDEWEB)

Cresswell, R. [Australian National Univ., Canberra, ACT (Australia). Dept. of Nuclear Physics

1997-12-31

Iron artefacts are generally dated by association or on stylistic grounds. This may not give a true indication of the date of manufacture, or may not be possible if the piece is out of context, ambiguous in style, or a copy. Obtaining a direct date on the artefact would be preferable. During the processes of manufacture, carbon is incorporated into the iron from the fuel source. If the fuel is of a material containing contemporaneous carbon, i.e. has an ambient radiocarbon signature, e.g. charcoal, then we may reliably radiocarbon date the artefact by extracting this carbon. Care must be taken, however, to ensure that re-working has not introduced multiple sources of carbon that would give an erroneous date. Detailed chemical analysis must precede radiocarbon analysis. Sample size is determined by carbon content, and before the advent of accelerator mass spectrometry, several tens of grams of carbon were required for radiocarbon dating (van der Merwe, 1969), prohibiting this method except for high-carbon cast-irons and bulk samples, e.g. caches of nails. AMS permits the analysis of sub-gram pieces of iron (Cresswell, 1991), thereby permitting the analysis of museum pieces with only minimal loss of material, and small fragments of iron recovered from archaeological sites. A few examples are given to illustrate these points. Paper no. 41; Extended abstract. 6 refs.

Radiocarbon dating of iron artefacts

International Nuclear Information System (INIS)

Cresswell, R.

1997-01-01

Iron artefacts are generally dated by association or on stylistic grounds. This may not give a true indication of the date of manufacture, or may not be possible if the piece is out of context, ambiguous in style, or a copy. Obtaining a direct date on the artefact would be preferable. During the processes of manufacture, carbon is incorporated into the iron from the fuel source. If the fuel is of a material containing contemporaneous carbon, i.e. has an ambient radiocarbon signature, e.g. charcoal, then we may reliably radiocarbon date the artefact by extracting this carbon. Care must be taken, however, to ensure that re-working has not introduced multiple sources of carbon that would give an erroneous date. Detailed chemical analysis must precede radiocarbon analysis. Sample size is determined by carbon content, and before the advent of accelerator mass spectrometry, several tens of grams of carbon were required for radiocarbon dating (van der Merwe, 1969), prohibiting this method except for high-carbon cast-irons and bulk samples, e.g. caches of nails. AMS permits the analysis of sub-gram pieces of iron (Cresswell, 1991), thereby permitting the analysis of museum pieces with only minimal loss of material, and small fragments of iron recovered from archaeological sites. A few examples are given to illustrate these points

Date canning: a new approach for the long time preservation of date.

Science.gov (United States)

Homayouni, Aziz; Azizi, Aslan; Keshtiban, Ata Khodavirdivand; Amini, Amir; Eslami, Ahad

2015-04-01

Dramatic growth in date (Phoenix dactylifera L.) production, makes it clear to apply proper methods to preserve this nutritious fruit for a long time. Numerous methods have been used to gain this goal in recent years that can be classified into non-thermal (fumigation, ozonation, irradiation, and packaging) and thermal (heat treatment, cold storage, dehydration, jam etc.) processing methods. In this paper these methods were reviewed and novel methods for date preservation were presented.

78 FR 17340 - Control Date for Qualifying Landings History in the Western Gulf of Alaska Trawl Groundfish...

Science.gov (United States)

2013-03-21

.../npfmc/ for information on public participation in the Council's decision-making process. This... control date may not be credited for purposes of making any allocation under a future management program..., and support the continued participation of coastal communities that are dependent on the fisheries...

Dating Norms and Dating Violence among Ninth Graders in Northeast Georgia: Reports from Student Surveys and Focus Groups

Science.gov (United States)

Reeves, Patricia M.; Orpinas, Pamela

2012-01-01

This mixed-methods study describes the norms supporting male-to-female and female-to-male dating violence in a diverse sample of ninth graders. The quantitative study, based on student surveys (n = 624), compared norms supporting dating violence by sex, race/ethnicity, and dating status, and it examined the relation between dating violence norms…

Disinfestation of Date Fruits by Gamma Radiation and Its Effect on the Nutritional Contents of Dates

International Nuclear Information System (INIS)

Ahmed, Z.A.; Boshra, S.A.; Mikhaiel, A.A.; Hassan, N.M.

2008-01-01

Irradiation dis infestations of Siwa date fruits seems to be a very promising method. Considerations of the health safety of irradiated date fruits involve nutritional contents has been investigated by chemical analysis. The dose of 400 and 1000 Gy were lethal for the different stages of oases date moth, Ephestia calidella. Dates are a good source of iron and potassium, they also contain calcium, magnesium, copper and other minerals. The radiation dose 1000 Gy had mostly affected the carbohydrates content, some minerals as Fe, Ca and Na partially changed by the treatment. Protein and vitamin contents were slightly affected

76 FR 15995 - Notice of Public Meeting: Northeast California Resource Advisory Council Subcommittee

Science.gov (United States)

2011-03-22

... District manager, (530) 224-2160; or Joseph J. Fontana, BLM public affairs officer, (530) 252-5332... as provided above. Dated: June 14, 2010. Joseph J. Fontana, Public Affairs Officer. [FR Doc. 2011... Public Meeting: Northeast California Resource Advisory Council Subcommittee AGENCY: Bureau of Land...

LOFAR-Boötes: properties of high- and low-excitation radio galaxies at 0.5 < z < 2.0

Science.gov (United States)

Williams, W. L.; Calistro Rivera, G.; Best, P. N.; Hardcastle, M. J.; Röttgering, H. J. A.; Duncan, K. J.; de Gasperin, F.; Jarvis, M. J.; Miley, G. K.; Mahony, E. K.; Morabito, L. K.; Nisbet, D. M.; Prandoni, I.; Smith, D. J. B.; Tasse, C.; White, G. J.

2018-04-01

This paper presents a study of the redshift evolution of radio-loud active galactic nuclei (AGN) as a function of the properties of their galaxy hosts in the Boötes field. To achieve this we match low-frequency radio sources from deep 150-MHz LOFAR (LOw Frequency ARray) observations to an I-band-selected catalogue of galaxies, for which we have derived photometric redshifts, stellar masses, and rest-frame colours. We present spectral energy distribution (SED) fitting to determine the mid-infrared AGN contribution for the radio sources and use this information to classify them as high- versus low-excitation radio galaxies (HERGs and LERGs) or star-forming galaxies. Based on these classifications, we construct luminosity functions for the separate redshift ranges going out to z = 2. From the matched radio-optical catalogues, we select a sub-sample of 624 high power (P150 MHz > 1025 W Hz-1) radio sources between 0.5 ≤ z negative evolution of the LERG luminosity functions over this redshift range, is consistent with LERGs being fuelled by hot gas in quiescent galaxies.

Utilisation des mousses et des pâtes syntactiques pour combler les lacunes des poteries archéologiques

Directory of Open Access Journals (Sweden)

Viviane Bechoux

2008-10-01

Full Text Available Filling potteries missing parts with plaster raises now complex problems during the de-restoration treatments. Ceramics restorers have recurrently questions on the use of plaster in the field of archaeological ceramics restoration. Some researches point to the choice of other filling materials. At the present time other methods can be devised by proposing plaster replacement by a lightened composite material: syntactic foams and pastes.Le comblement des lacunes des poteries à partir du plâtre pose actuellement des problèmes complexes lors des traitements de dérestauration. Les restaurateurs de céramiques s'interrogent de manière récurrente sur l'utilisation du plâtre dans le domaine de la restauration des céramiques archéologiques. Des recherches s'orientent vers le choix d'autres matériaux d'obturation. Actuellement, d'autres méthodes peuvent être mises en place en proposant le remplacement du plâtre par un matériau composite allégé, les mousses et les pâtes syntactiques.

Dating: a relationship of violence between young couples

Directory of Open Access Journals (Sweden)

Marlene Almeida de Ataíde

2015-07-01

Full Text Available This article results from a qualitative research, anchored by the methodology of oral history as investigative support. The study aimed to understand the narratives of two young university students about the phenomenon of violence in dating relationships. In this perspective, it is important to unveil the arguments supported in order to mantain a relationship of violence, requiring the understanding of the meanings they attribute to the type of violence suffered. Thus, this study sought to investigate gender violence, that is, the actions or conduct, based on gender differences, which may cause death, physical, sexual or psychological suffering to women, because these events may occur both in the public and private space. Gender violence expresses the historically unequal power relations between men and women.

A bibliography of AECL publications on reactor safety

International Nuclear Information System (INIS)

Hawley, N.J.

1979-12-01

AECL Publications on Reactor Safety in CANDU Reactors are listed in this bibliography. The listing is chronological and the accompanying index is by subject. The bibliography will be brought up to date annually. (auth)

Predicting Social Security numbers from public data

OpenAIRE

Acquisti, Alessandro; Gross, Ralph

2009-01-01

Information about an individual's place and date of birth can be exploited to predict his or her Social Security number (SSN). Using only publicly available information, we observed a correlation between individuals' SSNs and their birth data and found that for younger cohorts the correlation allows statistical inference of private SSNs. The inferences are made possible by the public availability of the Social Security Administration's Death Master File and the widespread accessibility of per...

History of radiocarbon dating

Energy Technology Data Exchange (ETDEWEB)

Libby, W F [Department of Chemistry and Institute of Geophysics, University of California, Los Angeles, CA (United States)

1967-08-15

The development is traced of radiocarbon dating from its birth in curiosity regarding the effects of cosmic radiation on Earth. Discussed in historical perspective are: the significance of the initial measurements in determining the course of developments; the advent of the low-level counting technique; attempts to avoid low-level counting by the use of isotopic enrichment; the gradual appearance of the environmental effect due to the combustion of fossil fuel (Suess effect); recognition of the atmosphere ocean barrier for carbon dioxide exchange; detailed understanding of the mixing mechanism from the study of fallout radiocarbon; determination of the new half-life; indexing and the assimilation problem for the massive accumulation of dates; and the proliferation of measurement techniques and the impact of archaeological insight on the validity of radiocarbon dates. (author)

Linguistic Dating of Biblical Texts

DEFF Research Database (Denmark)

Ehrensvärd, Martin Gustaf

2003-01-01

For two centuries, scholars have pointed to consistent differences in the Hebrew of certain biblical texts and interpreted these differences as reflecting the date of composition of the texts. Until the 1980s, this was quite uncontroversial as the linguistic findings largely confirmed the chronol......For two centuries, scholars have pointed to consistent differences in the Hebrew of certain biblical texts and interpreted these differences as reflecting the date of composition of the texts. Until the 1980s, this was quite uncontroversial as the linguistic findings largely confirmed...... the chronology of the texts established by other means: the Hebrew of Genesis-2 Kings was judged to be early and that of Esther, Daniel, Ezra, Nehemiah, and Chronicles to be late. In the current debate where revisionists have questioned the traditional dating, linguistic arguments in the dating of texts have...... come more into focus. The study critically examines some linguistic arguments adduced to support the traditional position, and reviewing the arguments it points to weaknesses in the linguistic dating of EBH texts to pre-exilic times. When viewing the linguistic evidence in isolation it will be clear...

7 CFR 35.8 - Date of export.

Science.gov (United States)

2010-01-01

... 7 Agriculture 2 2010-01-01 2010-01-01 false Date of export. 35.8 Section 35.8 Agriculture... Practices), DEPARTMENT OF AGRICULTURE COMMODITY STANDARDS AND STANDARD CONTAINER REGULATIONS EXPORT GRAPES AND PLUMS Definitions § 35.8 Date of export. Date of export means the date of loading on board the...

AHP 47: A NIGHT DATE

Directory of Open Access Journals (Sweden)

Phun tshogs dbang rgyal ཕུན་ཚོགས་དབང་རྒྱལ།

2017-04-01

Full Text Available The author was born in 1993 in Ska chung (Gaqun Village, Nyin mtha' (Ningmute Township, Rma lho (Henan Mongolian Autonomous County, Rma lho (Huangnan Tibetan Autonomous Prefecture, Mtsho sngon (Qinghai Province, PR China. Night dating was popular for teenage boys some years ago. They rode horses and yaks when they went night dating. They generally rode yaks, because horses were important for their families and used for such important tasks as pursuing bandits and going to the county town for grain and supplies. An early experience with night dating is described.

77 FR 71800 - Proposed Data Collections Submitted for Public Comment and Recommendations

Science.gov (United States)

2012-12-04

...--Scientific Education and Professional Development Program Office (SEPDPO), Office of Surveillance... Brief Description CDC offers public health training activities to professionals worldwide. Employees of... health departments apply for training to learn up-to-date public health practices. CDC's training...

78 FR 7436 - Request for Public Comment: 30-Day Proposed Information Collection: Indian Health Service...

Science.gov (United States)

2013-02-01

... timely fashion; (c) the accuracy of the public burden estimate (this is the amount of time needed for... requests, comments, and return address to: [email protected] . DATES: Comment Due Date: March 4, 2013...

78 FR 13607 - Minimum Training Requirements for Entry-Level Commercial Motor Vehicle Operators; Public...

Science.gov (United States)

2013-02-28

... analyses, including cost/benefit considerations. The entire day's proceedings will be webcast. DATES: The... Vehicle Operators; Public Listening Session AGENCY: Federal Motor Carrier Safety Administration (FMCSA), DOT. ACTION: Notice of public listening session. SUMMARY: FMCSA announces that it will hold a public...

75 FR 51759 - Publication of State Plan Pursuant to the Help America Vote Act

Science.gov (United States)

2010-08-23

... ELECTION ASSISTANCE COMMISSION Publication of State Plan Pursuant to the Help America Vote Act... previously submitted by California. DATES: This notice is effective upon publication in the Federal Register... plans submitted for publication provide information on how the respective state succeeded in carrying...

REIMEP-22 inter-laboratory comparison: "U Age Dating - Determination of the production date of a uranium certified test sample"

OpenAIRE

VENCHIARUTTI CELIA; VARGA ZSOLT; RICHTER Stephan; JAKOPIC Rozle; MAYER Klaus; AREGBE Yetunde

2015-01-01

The REIMEP-22 inter-laboratory comparison aimed at determining the production date of a uranium certified test sample (i.e. the last chemical separation date of the material). Participants in REIMEP-22 on "U Age Dating - Determination of the production date of a uranium certified test sample" received one low-enriched 20 mg uranium sample for mass spectrometry measurements and/or one 50 mg uranium sample for D-spectrometry measurements, with an undisclosed value for the production date. They ...

21 CFR 610.50 - Date of manufacture.

Science.gov (United States)

2010-04-01

... 21 Food and Drugs 7 2010-04-01 2010-04-01 false Date of manufacture. 610.50 Section 610.50 Food... GENERAL BIOLOGICAL PRODUCTS STANDARDS Dating Period Limitations § 610.50 Date of manufacture. The date of manufacture shall be determined as follows: (a) For products for which an official standard of potency is...

U.S. tabloid magazine coverage of a celebrity dating abuse incident: Rihanna and Chris Brown.

Science.gov (United States)

Rothman, Emily F; Nagaswaran, Anita; Johnson, Renee M; Adams, Kelley M; Scrivens, Juliane; Baughman, Allyson

2012-01-01

Dating abuse is a prevalent adolescent health problem with substantial public health consequences. As many as 1 in 10 high school students in the United States reports being "hit, slapped, or physically hurt on purpose" by his or her boyfriend or girlfriend in the past year. The authors used the Rihanna-Chris Brown dating abuse incident of 2009 as a case study to conduct what is, to our knowledge, the first assessment of media framing of dating abuse. The authors reviewed the 20 leading U.S. single-copy sales magazines published from February to April 2009 and identified 48 relevant articles, which were all printed in 7 tabloid magazines. The authors conducted a content analysis of the media frames of the articles using 5 frame categories: (a) abuse is objectionable, (b) victim-blaming, (c) abuse is sexualized/romanticized, (d) myths about abuse perpetration, and (e) abuse is normalized. Abuse is objectionable was the dominant frame of 40% of articles, victim-blaming in 36%. Although the majority of articles reviewed (83%) made at least passing reference to the idea that abuse is wrong, a minority (40%) used a dominant frame that condemned abuse. Instead, the majority of articles communicated mixed messages about dating abuse, and many minimized the seriousness of partner abuse perpetration. Advocacy is needed to improve future tabloid media framing of dating abuse incidents.

Thermoluminescence dating of pottery

International Nuclear Information System (INIS)

Higashimura, Takenobu; Ichikawa, Yoneta.

1978-01-01

This report is divided into two parts. The first half describes on the history of thermoluminescence dating, and the latter half, the principle and measurement examples. It was in late 1955 that the measurement of radiation dose using thermoluminescence began. The method to thermoluminescence dating was developed when it was found that most natural stones emit the thermoluminescence. About Greek earthen wares, the study of which was presented in 1961 by G. Kennedy of University of California, the dating was able to be made within the standard deviation of 10%. Since then, this dating method progressed rapidly, and a number of laboratories are now forwarding the investigation. In the samples of natural materials, intensity of thermoluminescence I is proportional to natural radiation dose D which has been absorbed by the samples, i.e. I = kD, where k is the susceptibility of thermoluminescence of the samples. Since k is different in each sample, D can be determined by irradiating the sample with β or γ ray of known dose D 0 , measuring its luminescence I 0 , and eliminating k through these two equations, because i 0 = kD 0 . Next, if t is assumed to be the time passed since a pottery was made, D is expressed as Rt, where R is the natural radiation dose per year absorbed by the pottery. Thus t is determined if R is known. The report describes on the method of measuring R. As an example, the results of measurement of the potteries excavated at Iwakura remains, Yorikura, Taishaku-kyo, are listed. Results by 14 C dating are also described for reference. (Wakatsuki, Y.)

Geometric Abstract Art and Public Health Data

Centers for Disease Control (CDC) Podcasts

2016-10-18

Dr. Salaam Semaan, a CDC behavioral scientist, discusses the similarities between geometric abstract art and public health data analysis.  Created: 10/18/2016 by National Center for Emerging and Zoonotic Infectious Diseases (NCEZID).   Date Released: 10/18/2016.

Bidirectional Relations Between Dating Violence Victimization and Substance Use in a Diverse Sample of Early Adolescents.

Science.gov (United States)

Taylor, Katherine A; Sullivan, Terri N

2017-09-01

Substance use and dating violence victimization are common in adolescence and represent significant public health concerns. Although theoretical accounts suggest a bidirectional association between substance use and victimization within dating relationships, this has not been tested during early adolescence. Thus, the current study examined bidirectional associations between physical and psychological dating violence victimization and substance use across 6 months among an ethnically diverse sample of early adolescents. Sex was also examined as a moderator. Participants included two cohorts of sixth graders from 37 schools who were in dating relationships in the last 3 months at Wave 1, in the fall of sixth grade, and 6 months later at Wave 2, in the spring of sixth grade ( n = 2,022; 43% female; 55% Black, 17% Latino/a, 16% White, 9% as multiracial, and 3% as another race/ethnicity). Students reported on the frequency of dating violence in the past 3 months and substance use in the past 30 days. Multilevel models, with students at Level 1 and classes (i.e., clusters of students in the same cohort at the same school; n = 74) at Level 2, tested hypotheses that positive reciprocal relations between physical and psychological dating violence victimization and substance use would be found over time, and that relations would be stronger for girls than boys. Sex, race/ethnicity, and family structure variables were included as Level 1 covariates; intervention condition and neighborhood concentrated disadvantage were included as Level 2 covariates. Results showed that higher levels of physical dating violence victimization at Wave 1 predicted increased substance use at Wave 2. Higher levels of substance use at Wave 1 predicted increased physical and psychological dating violence victimization at Wave 2. Findings highlight the importance of prevention efforts for dating violence and substance use early in adolescence.

Transporting TMI-2 core debris to INEL: Public safety and public response

International Nuclear Information System (INIS)

Schmitt, R.C.; Reno, H.W.; Young, W.R.; Hamric, J.P.

1987-01-01

This paper describes the approach taken by the US Department of Energy to ensure that public safety is maintained during transport of core debris from the Unit-2 reactor at the Three Mile Island Nuclear Power Station near Harrisburg, PA, to the Idaho National Engineering Laboratory near Idaho Falls, ID. It provides up-to-date information about public response to the transport action and discusses DOE's position on several institutional issues. The authors advise that planners of future transport operations be prepared for a multitude of comments from all levels of federal, state, and local governments, special interest groups, and private citizens. They also advise planners to keep meticulous records concerning all informational transactions. 3 figs

24 CFR 220.811 - Date of default.

Science.gov (United States)

2010-04-01

... 24 Housing and Urban Development 2 2010-04-01 2010-04-01 false Date of default. 220.811 Section... and Obligations-Projects Insured Project Improvement Loans § 220.811 Date of default. For the purposes of §§ 220.800 et seq., the date of default shall be considered as: (a) The date of the first...

Dating the humans by radiocarbon

International Nuclear Information System (INIS)

Fedi, M.E.

2011-01-01

Radiocarbon has become a very powerful tool used for dating. This paper deals with a specific application of 1 4C i.e. dating of humans. Attention is focused on those aspects that, if neglected, might lead to a misinterpretation of the results or to an unsatisfying accuracy of the measurement. After a brief description of the main principles on which the radiocarbon method is based and of Accelerator Mass Spectrometry, examples taken from the research activity of INFN-LABEC (Laboratorio di Tecniche Nucleari per I Beni Culturali) in Florence are presented. The case of the relic of St. Francis represents an example of dating not directly human remains but other objects that can be associated to them. The case of two burials from the archaeological area of Baratti-Populonia, in Tuscany, gives the possibility to show the importance of estimating the human palaeodiet when dating bone samples.

Calendula officinalis L. saturošo produktu bioloģiskās aktivitātes izvērtējums

OpenAIRE

Zepa, Līva

2016-01-01

Ārstniecības kliņģerītes ir vienas no senākajiem un pazīstamākajiem ārstniecības augiem pasaulē. Tās ir ātraudzīgas un jau vēsturiski plaši izmantotas tautas medicīnā. Pētījumi par ārstniecības kliņģerīšu lomu veselības saglabāšanā un stiprināšanā, izvērtējot aktīvo vielu saturu un sastāvu tajās, tās var pozitīvi ietekmēt cilvēka organismu gan profilakses nolūkos, gan kā papildus terapija ārstēšanas brīdī. Maģistra darba mērķis bija noskaidrot, kādas un cik daudz aktīvās vielas atrodamas pašg...

Record date in Serbian company law

Directory of Open Access Journals (Sweden)

Arsić Zoran

2011-01-01

Full Text Available The right of the shareholder to participate in and vote at the general meeting is determined based on the shares he holds on a certain date prior to the general meeting (record date. However, the rules regulating the record date deviate from the principle of indivisibility of shares. In extreme cases it is possible to have persons, none of which are shareholders at a given time, to participate in and vote at the general meeting. Hence, it is possible to have persons with no investment interest in the company to decide, for example, on adoption of financial reports, or on disposal of high-value assets. This issue, by its virtue, is not put forward in cases where there was no transfer of shares in the period between the record date and the date of the general meeting.

75 FR 27743 - Publication of State Plan Pursuant to the Help America Vote Act

Science.gov (United States)

2010-05-18

... ELECTION ASSISTANCE COMMISSION Publication of State Plan Pursuant to the Help America Vote Act... previously submitted by New Mexico. DATES: This notice is effective upon publication in the Federal Register... 27744

75 FR 6643 - Publication of State Plan Pursuant to the Help America Vote Act

Science.gov (United States)

2010-02-10

... ELECTION ASSISTANCE COMMISSION Publication of State Plan Pursuant to the Help America Vote Act... plans previously submitted by New Jersey and Wisconsin. DATES: This notice is effective upon publication... the State plans submitted for publication provide information on how the respective State succeeded in...

75 FR 39671 - Publication of State Plan Pursuant to the Help America Vote Act

Science.gov (United States)

2010-07-12

... ELECTION ASSISTANCE COMMISSION Publication of State Plan Pursuant to the Help America Vote Act... plan previously submitted by South Dakota. DATES: This notice is effective upon publication in the... 254(a)(12), all the state plans submitted for publication provide information on how the respective...

Corneal specular microscopy in infectious and noninfectious uveitis Microscopia especular de córnea em pacientes com uveítes infecciosas e não-infecciosas

Directory of Open Access Journals (Sweden)

Filipe de Oliveira

2009-08-01

Full Text Available PURPOSE: Involvement of the cornea endothelium during uveitis has not been extensively studied even though it might participate in or constitute a target of ocular inflammation. Formation of keratic precipitates (KP is a characteristic finding in several forms of uveitis. The aim of this prospective study was to examine the vicinity of keratic precipitates in infectious and noninfectious uveitis by specular microscopy. METHODS: Patients with infectious and noninfectious uveitis in any activity level and presence of keratic precipitates were enrolled. The mean age was 40.5 years (± 14.2 years. A Topcon SP-2000P noncontact specular microscope was used to capture endothelial images in the vicinity of keratic precipitates. Automated morphometric analysis was done for cell size, cell density and cells coefficient of variation. Statistical comparisons were made between the infectious and noninfectious groups. RESULTS: From the 25 patients enrolled in this study, 16 (44% eyes presented infectious uveitis, 19 (53% noninfectious uveitis and 1 (3% eye was excluded due to the impossibility to obtain a specular image. The mean cell density estimated was 2,628 ± 204 cells/mm² in infectious group and 2,622 ± 357 cells/mm² in noninfectious group. The mean cellular area in infectious and noninfectious group was respectively 385 ± 31 µm² and 390 ± 60 µm². The coefficient of variation (% of the cellular area in the vicinity of keratic precipitates was 26.36 ±3.44 in infectious and 27.69 ± 4.61 in noninfectious group. The differences between the groups were not statistically significant (POBJETIVO: Avaliar o endotélio corneano na presença de precipitados ceráticos em pacientes portadores de uveítes infecciosas e não-infecciosas com emprego da microscopia especular de não-contato. MÉTODOS: Prospectivamente foram incluídos 25 pacientes com média de idade de 40,5 (±14,2 anos. Os pacientes foram divididos em dois grupos de acordo com a etiologia

Luminescence dating of Netherland's sediments

NARCIS (Netherlands)

Wallinga, J.; Davids, F.; Dijkmans, J.W.A.

2007-01-01

Over the last decades luminescence dating techniques have been developed that allow earth scientists to determine the time of deposition of sediments. In this contribution we revity: 1) the development of the methodology, 2) tests of the reliability of luminescence dating on Netherlands' sediments;

Saint-André-des-Eaux (Côtes-d’Armor : étude archéologique d’une église paroissiale et de ses peintures murales

Directory of Open Access Journals (Sweden)

Mathias Dupuis

2008-07-01

Full Text Available Le petit village de Saint-André-des-Eaux se situe dans les Côtes-d’Armor, à une dizaine de kilomètres au sud-est de Dinan. Les vestiges de l’ancienne église paroissiale et de son cimetière prennent place quelques centaines de mètres à l’écart du bourg (fig. 1, sur les abords boisés de l’étang de Bétineuc, un vaste plan d’eau artificiel créé dans les années 1970 afin d’assainir cette zone autrefois marécageuse. En effet, le contexte de plaine, la proximité de la Rance et le maillage resserré ...

The Rate of Cyber Dating Abuse among Teens and How It Relates to Other Forms of Teen Dating Violence

Science.gov (United States)

Zweig, Janine M.; Dank, Meredith; Yahner, Jennifer; Lachman, Pamela

2013-01-01

To date, little research has documented how teens might misuse technology to harass, control, and abuse their dating partners. This study examined the extent of cyber dating abuse--abuse via technology and new media--in youth relationships and how it relates to other forms of teen dating violence. A total of 5,647 youth from ten schools in three…

Combination of archaeomagnetism and thermoluminescence for precision dating

Science.gov (United States)

Becker, H.; Göksu, H. Y.; Regulla, D. F.

Archaeomagnetic dating was applied to two chalk-burning ovens from an early medieval noble-cemetery. Usually this method allows dating by the investigation of the geomagnetic declination and inclination through the thermoremanent magnetisation of baked clay in situ. However, in this case the method resulted in multiple dates since it was not possible to distinguish the brainching of the geomagnetic secular variation curve. Thermoluminescence dating was applied to the same samples to overcome the problem of multiple dates. This first combined application of archaeomagnetism and thermoluminescence for dating yielded A.D. 670±30 for the two ovens, which dates the first stone-church at the site after a wooden predecessor archeologically dated A.D. 620-630.

Dating of fossil hominid: problems and perspectives

International Nuclear Information System (INIS)

Poupeau, G.; Danon, J.; Baksi, A.K.

1984-01-01

The hominid dating anterior to the Homo Erectus has been based up to now on the rocks and minerals geochronology of vulcanic origem in stratigraphic relation with the fossils. Two methods are widely used, potassium-argon and uranium fission track dating. The vulcanic material dating; lava, lephra, associated with the hominid leavings show big difficults essentially connected to several types of contamination and modification. Two available examples inside the east-african rift show the probelms linked to these dating. The current progresses in the dating methods can contribute by one hand to a better utilization of the K-Ar and fisson track methods for the vulcanic materials. By other hand, with the introduction of new dating methods (thermoluminescence and electron paramagnetic resonance) will be possible to date directly whether the fossil bone itself or the associated sedimentar material. This open new perspectives in particular for every sites which are not inter-stratified with the vulcanic material. (L.C.) [pt

The role of timing in the induction of neuromodulation in perceptual learning by transcranial electric stimulation.

Science.gov (United States)

Pirulli, Cornelia; Fertonani, Anna; Miniussi, Carlo

2013-07-01

Transcranial electric stimulation (tES) protocols are able to induce neuromodulation, offering important insights to focus and constrain theories of the relationship between brain and behavior. Previous studies have shown that different types of tES (i.e., direct current stimulation - tDCS, and random noise stimulation - tRNS) induce different facilitatory behavioral effects. However to date is not clear which is the optimal timing to apply tES in relation to the induction of robust facilitatory effects. The goal of this work was to investigate how different types of tES (tDCS and tRNS) can modulate behavioral performance in the healthy adult brain in relation to their timing of application. We applied tES protocols before (offline) or during (online) the execution of a visual perceptual learning (PL) task. PL is a form of implicit memory that is characterized by an improvement in sensory discrimination after repeated exposure to a particular type of stimulus and is considered a manifestation of neural plasticity. Our aim was to understand if the timing of tES is critical for the induction of differential neuromodulatory effects in the primary visual cortex (V1). We applied high-frequency tRNS, anodal tDCS and sham tDCS on V1 before or during the execution of an orientation discrimination task. The experimental design was between subjects and performance was measured in terms of d' values. The ideal timing of application varied depending on the stimulation type. tRNS facilitated task performance only when it was applied during task execution, whereas anodal tDCS induced a larger facilitation if it was applied before task execution. The main result of this study is the finding that the timing of identical tES protocols yields opposite effects on performance. These results provide important guidelines for designing neuromodulation induction protocols and highlight the different optimal timing of the two excitatory techniques. Copyright © 2013 Elsevier Inc. All

Correction procedures for C-14 dates

International Nuclear Information System (INIS)

McKerrell, H.

1975-01-01

There are two quite separate criteria to satisfy before accepting as valid the corrections to C-14 dates which have been indicated for some years now by the bristlecone pine calibration. Firstly the correction figures have to be based upon all the available tree-ring data and derived in a manner that is mathematically sound, and secondly the correction figures have to produce accurate results on C-14 dates from archaeological test samples of known historical date, these covering as wide a period as possible. Neither of these basic prerequisites has yet been fully met. Thus the two-fold purpose of this paper is to bring together, and to compare with an independently based procedure, the various correction curves or tables that have been published up to Spring 1974, as well as to detail the correction results on reliable, historically dated Egyptian, Helladic and Minoan test samples from 3100 B.C. The nomenclature followed is strictly that adopted by the primary dating journal Radiocarbon, all C-14 dates quoted thus relate to the 5568 year half-life and the standard AD/BC system. (author)

Recent advances in thermoluminescence dating

International Nuclear Information System (INIS)

Aitken, M.J.

1984-01-01

Initially the application of thermoluminescent dating was to ancient pottery and other baked clay, the detection of forgeries in art ceramics having a particularly powerful impact. In recent years there has been a growing extension of TL into non-pottery materials. Heated flints from paleolithic fire-places is one application. Another is in the dating of igneous rocks from recent volcanic events; formerly this had been impossible on account of the malign phenomenon of non-thermal ('anomalous') fading exhibited by volcanic minerals but this is now being circumvented by utilising TL in the 600 0 C region of the glow curve. TL dating has also been extended to unburnt calcite, one application being stalagmitic floors in paleolithic caves. Another recent development is the use of TL for dating aeolian sediment and some types of waterborne sediment. These developments give prospect of establishing a TL-based chronology, both for archaeology and quaternary research, extending back well beyond the range of radiocarbon, perhaps reaching a million years ago. (author)

Potassium-argon dating in archaeology

Energy Technology Data Exchange (ETDEWEB)

McDougall, I. (Australian National Univ., Canberra (Australia). Research School of Earth Sciences)

1990-01-01

The potassium-argon (K-Ar) isotopic dating method can provide precise and accurate numerical ages on suitable rocks, especially igneous rocks, over a wide range of age from less than 100,000 years old, with no older limit. Together with its variants, the {sup 40}Ar/{sup 39}Ar technique, the K-Ar method is very useful for the numerical age calibration of stratigraphic sequences, including those containing archaeological or fossil material, in cases where appropriate rocks for dating are present. This brief review of the basis of the K-Ar dating method and the underlying assumptions, concludes with an example of its application to the Plio-Pleistocene stratigraphic sequence in the Turkana Basin, northern Kenya. By dating alkali feldspars separated from pumice blocks in tuffaceous beds, excellent age control has been obtained for the wealth of vertebrate fossils, including hominids, as well as archaeological materials that has been found in the sequence. (author).

75 FR 16204 - Region II Buffalo District Advisory Council; Public Meeting

Science.gov (United States)

2010-03-31

... SMALL BUSINESS ADMINISTRATION Region II Buffalo District Advisory Council; Public Meeting AGENCY... meeting of the Region II Buffalo District Advisory Council. The meeting will be open to the public. DATES... Federal Advisory Committee Act (5 U.S.C., Appendix 2), SBA announces the meeting of the Region II Buffalo...

77 FR 20871 - Region II Buffalo District Advisory Council; Public Meeting

Science.gov (United States)

2012-04-06

... SMALL BUSINESS ADMINISTRATION Region II Buffalo District Advisory Council; Public Meeting AGENCY... meeting of the Region II Buffalo District Advisory Council. The meeting will be open to the public. DATES... Committee Act (5 U.S.C., Appendix 2), SBA announces the meeting of the Region II Buffalo District Advisory...

76 FR 59480 - Region II Buffalo District Advisory Council; Public Meeting

Science.gov (United States)

2011-09-26

... SMALL BUSINESS ADMINISTRATION Region II Buffalo District Advisory Council; Public Meeting AGENCY... meeting of the Region II Buffalo District Advisory Council. The meeting will be open to the public. DATES... Federal Advisory Committee Act (5 U.S.C., Appendix 2), SBA announces the meeting of the Region II Buffalo...

77 FR 65664 - Publication of Depreciation Rates

Science.gov (United States)

2012-10-30

... DEPARTMENT OF AGRICULTURE Rural Utilities Service Publication of Depreciation Rates AGENCY: Rural... announces the depreciation rates for telecommunications plant for the period ending December 31, 2011. DATES... Loans, Sec. 1737.70(e) explains the depreciation rates that are used by RUS in its feasibility studies...

76 FR 72672 - Publication of Depreciation Rates

Science.gov (United States)

2011-11-25

... DEPARTMENT OF AGRICULTURE Rural Utilities Service Publication of Depreciation Rates AGENCY: Rural... announces the depreciation rates for telecommunications plant for the period ending December 31, 2010. DATES..., Sec. 1737.70(e) explains the depreciation rates that are used by RUS in its feasibility studies. Sec...

Thermoluminescence dating method

International Nuclear Information System (INIS)

Zink, A.

2004-01-01

A crystal that is submitted to radiation stores energy and releases this energy under the form of light whenever it is heated. These 2 properties: the ability to store energy and the ability to reset the energy stored are the pillars on which time dating methods like thermoluminescence are based. A typical accuracy of the thermoluminescence method is between 5 to 7% but an accuracy of 3% can be reached with a sufficient number of measurement. This article describes the application of thermoluminescence to the dating of a series of old terra-cotta statues. This time measurement is absolute and does not require any calibration, it represents the time elapsed since the last heating of the artifact. (A.C.)

Chromatographic separation of fructose from date syrup.

Science.gov (United States)

Al Eid, Salah M

2006-01-01

The objective of this study is to provide a process for separating fructose from a mixture of sugars containing essentially fructose and glucose, obtained from date palm fruits. The extraction procedure of date syrup from fresh dates gave a yield of 86.5% solids after vacuum drying. A process for separating fructose from an aqueous solution of date syrup involved adding the date syrup solutions (20, 30 and 40% by weight) to a chromatographic column filled with Dowex polystyrene strong cation exchange gel matrix resin Ca2 + and divinylbenzene, a functional group, sulfonic acid, particle size 320 microm, with a flow rate of 0.025 and 0.05 bed volume/min, under 30 and 70 degrees C column temperature. After the date sugar solution batch, a calculated quantity of water was added to the column. Glucose was retained by the resin more weakly than fructose and proceeded faster into the water batch flowing ahead. Three fractions were collected: a glucose-rich fraction, a return fraction, and a fructose-rich fraction. The return fraction is based on when the peaks of fructose and glucose were reached, which could be determined by means of an analyzer (polarimeter) based on the property of glucose and fructose solutions to turn the polarization level of polarized light. A high yield of fructose is obtained at 70 degrees C column temperature with a flow rate of 0.025 bed volume/min and date syrup solution containing 40% sugar concentration. The low recovery by weight obtained using date syrup solutions having a sugar concentration of 20 and 30%, encourages the use of a concentration of 40%. However, with the 40% date syrup supply the average concentrations of glucose and fructose in the return fractions were more than 40%, which can be used for diluting the thick date syrup solution extracted from dates.

75 FR 41454 - Publication of State Plan Pursuant to the Help America Vote Act

Science.gov (United States)

2010-07-16

... ELECTION ASSISTANCE COMMISSION Publication of State Plan Pursuant to the Help America Vote Act... plans previously submitted by Alaska. DATES: This notice is effective upon publication in the Federal... programs. In accordance with HAVA Section 254(a)(12), all the state plans submitted for publication provide...

78 FR 77110 - Publication of State Plan Pursuant to the Help America Vote Act

Science.gov (United States)

2013-12-20

... ELECTION ASSISTANCE COMMISSION Publication of State Plan Pursuant to the Help America Vote Act... at www.eac.gov . DATES: This notice is effective upon publication in the Federal Register. FOR... publication provide information on how the respective State succeeded in carrying out its previous State plan...

Gestational dating by metabolic profile at birth: a California cohort study.

Science.gov (United States)

Jelliffe-Pawlowski, Laura L; Norton, Mary E; Baer, Rebecca J; Santos, Nicole; Rutherford, George W

2016-04-01

Accurate gestational dating is a critical component of obstetric and newborn care. In the absence of early ultrasound, many clinicians rely on less accurate measures, such as last menstrual period or symphysis-fundal height during pregnancy, or Dubowitz scoring or the Ballard (or New Ballard) method at birth. These measures often underestimate or overestimate gestational age and can lead to misclassification of babies as born preterm, which has both short- and long-term clinical care and public health implications. We sought to evaluate whether metabolic markers in newborns measured as part of routine screening for treatable inborn errors of metabolism can be used to develop a population-level metabolic gestational dating algorithm that is robust despite intrauterine growth restriction and can be used when fetal ultrasound dating is not available. We focused specifically on the ability of these markers to differentiate preterm births (PTBs) (PTBs and term births. Using a linear discriminate analyses-derived linear function, we were able to sort PTBs and term births accurately with sensitivities and specificities of ≥95% in both the training and testing subsets. Assignment of a specific week of gestation in those identified as PTBs resulted in the correct assignment of week ±2 weeks in 89.8% of all newborns in the training and 91.7% of those in the testing subset. When PTB rates were modeled using the metabolic dating algorithm compared to fetal ultrasound, PTB rates were 7.15% vs 6.11% in the training subset and 7.31% vs 6.25% in the testing subset. When considered in combination with birthweight and hours of age at test, metabolic profile evaluated within 8 days of birth appears to be a useful measure of PTB and, among those born preterm, of specific week of gestation ±2 weeks. Dating by metabolic profile may be useful in instances where there is no fetal ultrasound due to lack of availability or late entry into care. Copyright © 2016 The Authors. Published

76 FR 27999 - Pacific Fishery Management Council; Public Meeting

Science.gov (United States)

2011-05-13

... Essential Fish Habitat Review Committee (EFHRC) that is open to the public. DATES: The conference call will... plan for acquiring data and information pertinent to a review of groundfish essential fish habitat, to...

Scientific publications in Nepal.

Science.gov (United States)

Magar, A

2012-09-01

Scientific publications have become a mainstay of communication among readers, academicians, researchers and scientists worldwide. Although, its existence dates back to 17 th century in the West, Nepal is still struggling to take few steps towards improving its local science for last 50 years. Since the start of the first medical journal in 1963, the challenges remains as it were decades back regarding role of authors, peer reviewers, editors and even publishers in Nepal. Although, there has been some development in terms of the number of articles being published and appearances of the journals, yet there is a long way to go. This article analyzes the past and present scenario, and future perspective for scientific publications in Nepal.

The Fossil Calibration Database-A New Resource for Divergence Dating.

Science.gov (United States)

Ksepka, Daniel T; Parham, James F; Allman, James F; Benton, Michael J; Carrano, Matthew T; Cranston, Karen A; Donoghue, Philip C J; Head, Jason J; Hermsen, Elizabeth J; Irmis, Randall B; Joyce, Walter G; Kohli, Manpreet; Lamm, Kristin D; Leehr, Dan; Patané, Josés L; Polly, P David; Phillips, Matthew J; Smith, N Adam; Smith, Nathan D; Van Tuinen, Marcel; Ware, Jessica L; Warnock, Rachel C M

2015-09-01

Fossils provide the principal basis for temporal calibrations, which are critical to the accuracy of divergence dating analyses. Translating fossil data into minimum and maximum bounds for calibrations is the most important-often least appreciated-step of divergence dating. Properly justified calibrations require the synthesis of phylogenetic, paleontological, and geological evidence and can be difficult for nonspecialists to formulate. The dynamic nature of the fossil record (e.g., new discoveries, taxonomic revisions, updates of global or local stratigraphy) requires that calibration data be updated continually lest they become obsolete. Here, we announce the Fossil Calibration Database (http://fossilcalibrations.org), a new open-access resource providing vetted fossil calibrations to the scientific community. Calibrations accessioned into this database are based on individual fossil specimens and follow best practices for phylogenetic justification and geochronological constraint. The associated Fossil Calibration Series, a calibration-themed publication series at Palaeontologia Electronica, will serve as a key pipeline for peer-reviewed calibrations to enter the database. © The Author(s) 2015. Published by Oxford University Press, on behalf of the Society of Systematic Biologists. All rights reserved. For Permissions, please email: journals.permissions@oup.com.

Evaluation of a Youth-Led Program for Preventing Bullying, Sexual Harassment, and Dating Aggression in Middle Schools

Science.gov (United States)

Connolly, Jennifer; Josephson, Wendy; Schnoll, Jessica; Simkins-Strong, Emily; Pepler, Debra; MacPherson, Alison; Weiser, Jessica; Moran, Michelle; Jiang, Depeng

2015-01-01

Although youth-led programs (YLP) have been successful in many areas of public health, youth leadership is rarely used in the prevention of peer aggression. A YLP to reduce bullying, sexual harassment, and dating aggression was compared experimentally with the board-mandated usual practice (UP). Four middle schools in an urban Canadian school…

77 FR 75425 - Publication of State Plan Pursuant to the Help America Vote Act

Science.gov (United States)

2012-12-20

... ELECTION ASSISTANCE COMMISSION Publication of State Plan Pursuant to the Help America Vote Act... site at www.eac.gov . DATES: This notice is effective upon publication in the Federal Register. FOR... with HAVA Section 254(a)(12), all the State plans submitted for publication provide information on how...

Date fruit: chemical composition, nutritional and medicinal values, products.

Science.gov (United States)

Tang, Zhen-Xing; Shi, Lu-E; Aleid, Salah M

2013-08-15

Date fruit has served as a staple food in the Arab world for centuries. Worldwide production of date fruit has increased almost threefold over the last 40 years, reaching 7.68 million tons in 2010. Date fruit can provide many essential nutrients and potential health benefits to the consumer. Date fruit goes through four ripening stages named kimri, khalal, rutab and tamer. The main chemical components of date fruit include carbohydrates, dietary fibre, enzymes, protein, fat, minerals, vitamins, phenolic acids and carotenoids. The chemical composition of date fruit varies according to ripening stage, cultivar, growing environment, postharvest conditions, etc. The nutritional and medicinal activities of date fruit are related to its chemical composition. Many studies have shown that date fruit has antioxidant, antimutagenic, anti-inflammatory, gastroprotective, hepatoprotective, nephroprotective, anticancer and immunostimulant activities. Various date fruit-based products such as date syrup, date paste, date juice and their derived products are available. Date by-products can be used as raw materials for the production of value-added products such as organic acids, exopolysaccharides, antibiotics, date-flavoured probiotic-fermented dairy produce, bakery yeasts, etc. In this paper the chemical composition and nutritional and medicinal values of date fruit as well as date fruit-based products are reviewed. © 2013 Society of Chemical Industry.

Tracks: A National Environmental Public Health Tracking Network Overview

Centers for Disease Control (CDC) Podcasts

2009-08-04

In this podcast, Dr. Mike McGeehin, Director of CDC's Division of Environmental Hazards and Health Effects, provides an overview of the National Environmental Public Health Tracking Network. It highlights the Tracking Network's goal, how it will improve public health, its audience, and much more.  Created: 8/4/2009 by Centers for Disease Control and Prevention (CDC).   Date Released: 8/4/2009.

78 FR 50394 - Advisory Committee on Supply Chain Competitiveness: Notice of Public Meeting

Science.gov (United States)

2013-08-19

... Competitiveness: Notice of Public Meeting AGENCY: International Trade Administration, U.S. Department of Commerce... discussion for a public meeting of the Advisory Committee on Supply Chain Competitiveness (Committee). DATES... growth competitiveness, foster national economic competitiveness, and improve U.S. supply chain...

Dating of archaeological objects using Carbon-14 facilities

International Nuclear Information System (INIS)

Kamisah Hj Alias; Noraishah Othman; Nasasni Nasrol

2004-01-01

Dating is the key to organising all archaeological evidence. Furthermore, the development of dating methods, whether traditional or scientific, illustrates the ingenuity and lateral thinking that make archaeological problem-solving such a fascinating exercise. The development of MINT radiocarbon dating procedures is reviewed. Basic principles and counting techniques are discussed. A sample is converted by chemical methods into a suitable form, such as carbon dioxide followed by the acetylene gas, and the benzene end-product is placed inside a proportional counter to measure the radioactivity of 14 C. Not until some years ago did absolute dates by radiocarbon dating become a reality for prehistoric archaeology in Malaysia where thermoluminescence and fission-track dating had begun to provide a locally applicable dating method some decades earlier. Applications of radiocarbon dating procedures in the fields of archaeology are also discussed. (Author)

Blogging, Mobile Phones, and Public Health

Centers for Disease Control (CDC) Podcasts

2009-05-15

In this podcast, Erin Edgerton, CDC, and Craig Lefebvre, George Washington University discuss social media, blogs, and mobile technologies and how they can be used for public health.  Created: 5/15/2009 by National Center for Health Marketing (NCHM), Division of eHealth Marketing (DeHM).   Date Released: 6/30/2009.

U-Th Burial Dates on Ostrich Eggshell

Science.gov (United States)

Sharp, W. D.; Fylstra, N. D.; Tryon, C. A.; Faith, J. T.; Peppe, D. J.

2015-12-01

Obtaining precise and accurate dates at archaeological sites beyond the range of radiocarbon dating is challenging but essential for understanding human origins. Eggshells of ratites (large flightless birds including ostrich, emu and others) are common in many archaeological sequences in Africa, Australia and elsewhere. Ancient eggshells are geochemically suitable for the U-Th technique (1), which has about ten times the range of radiocarbon dating (>500 rather than 50 ka), making eggshells attractive dating targets. Moreover, C and N isotopic studies of eggshell provide insights into paleovegetation and paleoprecipitation central to assessing past human-environment interactions (2,3). But until now, U-Th dates on ratite eggshell have not accounted for the secondary origin of essentially all of their U. We report a novel approach to U-Th dating of eggshell that explicitly accounts for secondary U uptake that begins with burial. Using ostrich eggshell (OES) from Pleistocene-Holocene east African sites, we have measured U and 232Th concentration profiles across OES by laser ablation ICP-MS. U commonly peaks at 10s to 100s of ppb and varies 10-fold or more across the ~2 mm thickness of OES, with gradients modulated by the layered structure of the eggshell. Common Th is high near the shell surfaces, but low in the middle "pallisade" layer of OES, making it optimal for U-Th dating. We determine U-Th ages along the U concentration gradient by solution ICP-MS analyses of two or more fractions of the pallisade layer. We then estimate OES burial dates using a simple model for diffusive uptake of uranium. Comparing such "U-Th burial dates" with radiocarbon dates for OES calcite from the same shells, we find good agreement in 7 out of 9 cases, consistent with rapid burial and confirming the accuracy of the approach. The remaining 2 eggshells have anomalous patterns of apparent ages that reveal they are unsuitable for U-Th dating, thereby providing reliability criteria innate

A comparison of due-date selection rules

NARCIS (Netherlands)

Baker, K.R.; Bertrand, J.W.M.

1981-01-01

In sequencing and scheduling models it is usually assumed that due dates represent exogeneous information. In many practical settings, however, due dates can be discretionary, or at least negotiable. Relatively few studies have incorporated discretionary due dates, and even then the rules proposed

The ELENA Programme in the Province of Chieti - A Public Private Partnership Best Practice Improving Energy Efficiency of Buildings and Public Lighting Systems

Directory of Open Access Journals (Sweden)

Pierluigi Fecondo

2015-09-01

To date, the most relevant Project outcomes consist 87 municipalities involved, a structured database of energy audit and data about 144 buildings and about 46,000 public light points. Moreover, an effective engagement of public and private stakeholders, lays the foundation for a strong Energy Performance Contract framework able to leverage financing based on minimun guaranteed energy savings of 20% in respect to baseline values.

Short echo time, fast gradient-echo imaging

International Nuclear Information System (INIS)

Haacke, E.M.; Lenz, G.W.

1987-01-01

Present fast-gradient-echoes schemes can acquire volume data rapidly and are flexible in T1 or T1/T2 contrast behavior. However, sequences used to date employ echo time (TE) values of about 15 ms +- 5 and, because of in vivo field inhomogeneities (short T2), they suffer badly from signal loss near sinuses and tissue boundaries. The authors implemented sequences with TE = 4-6 ms and found significant improvement in image quality, especially at high fields. Examples with long TEs vs. short TEs are given in the knee, spine, head, and orbits. Further advantages include (1) faster repetition times (15 ms), (2) higher-quality spin-density or T1-weighted images, and (3) reduction of blood motion artifacts

The isotopic dating of crystals

International Nuclear Information System (INIS)

Giuliani, G.; Cheilletz, A.

1995-01-01

The first part of this work deals with the answer to the question : why are the crystals dated ? Then, some isotopic dating methods are described : U-Th-Pb, K-Ar, 40 Ar/ 39 Ar, Rb-Sr, Sm-Nd, fission traces, carbon 14 methods. Examples concerning emeralds and diamonds are given. (O.L.). 12 refs., 2 figs

"KinLeaves" reklāmas aktivitātes sociālajā tīklā “Facebook” 2016. gadā

OpenAIRE

Mandrika, Dana

2017-01-01

Bakalaura darba mērķis ir izpētīt, kādas reklāmas aktivitātes uzņēmums ir veicis un noskaidrot, vai sociālajā tīklā “Facebook” ar reklāmas aktivitātēm ir iespējams sasniegt mērķauditoriju. Darbs sastāv no trīs daļām – teorētiskās, metodoloģiskās un empīriskās. Teorētisko daļu veido nodaļas par reklāmu, sociālo tīklu vietnēm, sociālo tīklu „Facebook” un reklāmu sociālo tīklu vietnēs. Metodoloģiskajā daļā apskatītas pētījumā izmantotās metodes - kontentanalīze, intervija, anketēšana. Empīrisk...

Cyber dating abuse in affective and sexual relationships: a literature review.

Science.gov (United States)

Flach, Roberta Matassoli Duran; Deslandes, Suely Ferreira

2017-07-27

Cyber culture with its related e-commerce, expanded since the 2000s through the advent of social network platforms, incites participants to engage in hyper-exposure and spectacularization of their private lives, with inherent consequences for personal image and privacy, publicizing private matters (especially those pertaining to sexuality and corporality) in the digital media. This raises the need to understand how the phenomenon of cyber dating abuse in affective and sexual relationships is conceptualized and characterized in scientific studies, which health problems are associated with it, and which social technologies are suggested for intervention. This form of abuse is a new expression of intimate partner violence that involves, among other practices, posting embarrassing photos and videos and intimate messages without prior consent, with the purpose of humiliating and defaming the person. The current study is an integrative systematic review, including 35 articles, with a predominance of studies in the United States (22). Types of cyber dating abuse range from direct aggression to stalking. Despite the high prevalence, especially among adolescents and youth, the literature highlights that this type of cyber abuse is often taken for granted. The suggested interventions are mostly for prevention and awareness-raising concerning relationship abuse, action by school counselors, and family orientation. The high reciprocity of cyber dating abuse between males and females indicates that future studies should attempt to elucidate how the dynamics of gender violence are reproduced or subverted by it.

12 CFR 717.28 - Effective date, compliance date, and prospective application.

Science.gov (United States)

2010-01-01

... REGULATIONS AFFECTING CREDIT UNIONS FAIR CREDIT REPORTING Affiliate Marketing § 717.28 Effective date... eligibility information that you receive from an affiliate to make solicitations to a consumer if you receive...

Food Product Dating

Science.gov (United States)

... Standard Forms FSIS United States Department of Agriculture Food Safety and Inspection Service About FSIS District Offices ... Web Content Viewer (JSR 286) Actions ${title} Loading... Food Product Dating "Best if Used By" is a ...

E-pasta mārketings un tā izmantošanas efektivitātes analīze Latvijas uzņēmumos

OpenAIRE

Ovčiņņikova, Anna

2016-01-01

Bakalaura darba tēma “E-pasta mārketings un tā izmantošanas efektivitātes analīze Latvijas uzņēmumos”. Mūsdienās viens no lielākajiem ienākuma avotiem uzņēmumiem ir spēja pārdod savus produktus, lai iegūtu vislielāko peļņu. Priekš tā tiek izmantoti dažādi mārketinga paņēmieni un mārketinga kanāli. Laba mārketinga stratēģija var panākt to ka produkts sevi pardod, bet papildus pirmreizējam pirkumam ir jāpanāk tas, lai tiktu veikts arī atkārtotais pirkums. Tā kā mūsdienās uzņēmumos ir ļoti sīva ...

Sample processing procedures and radiocarbon dating

International Nuclear Information System (INIS)

Svetlik, Ivo; Tomaskova, Lenka; Dreslerova, Dagmar

2010-01-01

The article outlines radiocarbon dating routines and highlights the potential and limitations of this method. The author's institutions have been jointly running a conventional radiocarbon dating laboratory using the international CRL code. A procedure based on the synthesis of benzene is used. Small samples are sent abroad for dating because no AMS instrumentation is available in the Czech Republic so far. Our laboratory plans to introduce routines for the processing of milligram samples and preparation of graphitized targets for AMS

Thermoluminescence dating of Indian archaeological sites

International Nuclear Information System (INIS)

Singhvi, A.K.; Sharma, Y.P.; Agrawal, D.P.

1983-01-01

In an attempt to provide a chronology for Indian archaeological sites, an extensive pottery dating programme was initiated during 1978-1979. So far we have provided a chronology for seven important Indian archaeological sites. The dated cultures include: 1) the Ochre Colour Ware culture, 2) the Pre-Harappan culture, 3) the megalithic culture and 4) the Painted Grey Ware culture. A complete survey of recently measured TL dates are presented in a model format similar to that used in Radiocarbon. (author)

Ambiguity and violence in adolescent dating relationships.

Science.gov (United States)

Draucker, Claire Burke; Martsolf, Donna; Stephenson, Pam Shockey

2012-08-01

Little is known about dyadic processes that lead to adolescent dating violence. The purpose of this study was to examine the phenomenon of relationship ambiguity in adolescent dating relationships to better understand how ambiguity contributes to violence and aggression between dating partners. Data were drawn from 88 narratives of young adults who had participated in a study on adolescent dating violence. Interpretive phenomenology was used to produce an in-depth description of the phenomenon of relationship ambiguity. Relationship ambiguity results in differing expectations between partners regarding closeness and intimacy, fidelity, and obligation. These differences lead to conflicts that set the stage for violence and aggression in adolescent dating relationships. A series of recommendations for clinicians working with adolescents are presented. © 2012 Wiley Periodicals, Inc.

Dating ancient monuments by nuclear radiation

International Nuclear Information System (INIS)

Goedicke, C.

2000-01-01

In the fifties and sixties several disciplines dealing with chronologies but lacking precise methods of measurements (geology, biology, archaeology and art history) became aware of the radioactive decay as a tool of measuring elapsed time. Among the disciplines that benefit most from physical methods archaeology has to be named first. So was archaeological work revolutionised by the introduction of the C-14 dating method. A wider selection of material became datable after the introduction of luminescence techniques using the effect of nuclear radiation on semiconductors. These minerals are widespread among archaeological materials. In ancient monuments, the objective of this paper, semiconductors almost exclusively form the material basis. Over the last four millennia wood, stone, mortar and fired bricks have been used for the construction of buildings. After discussing methods taking wood as a dating material, a broader view will be given on the results achieved by luminescence dating of fired bricks, mortar and stone. For many years brick dating was performed by thermoluminescence, the recipes followed those of ceramic dating. Preferably multiple aliquot additive dose protocols were used on polymineral fine grain fractions (1-10 μm). It was expected that the error in dating monuments would be smaller compared to ceramic dating, because of the constancy of the environmental conditions which a brick experiences during its lifetime. However, the variability of firing temperatures in brick kilns overthrows this advantage. Therefore, the demands of art historians to fall short of an error margin of 5% could generally not be fulfilled. Especially in medieval or renaissance times the temporal resolution of thermoluminescence is inferior to traditional stylistic dating as long as specific stylistic forms are present. New optical luminescence techniques and a new philosophy of dose evaluation, based on single aliquot regeneration protocols, produce less scatter, and in

PENENTUAN RECEIVED DATE DENGAN LOAD-ORIENTED MANUFACRURING CONTROL

Directory of Open Access Journals (Sweden)

Sri Hartini

2012-02-01

Full Text Available Salah satu kunci kompetitif sebuah perusahaan make to order adalah ketepatan dalam pemenuhan waktu penerimaan pesanan pada konsumen yang telah dijanjikan perusahaan ( received date. Penentuan received date yang selama ini dilakukan oleh JI  kurang tepat karena hanya memperkirakan waktu sekitar 10 – 12 minggu tanpa mempertimbangkan faktor produksi. Penelitian ini merancang received date dengan model load-oriented manufacturing control dimana penentuan received date didasarkan pada perhitungan manufacturing lead time yang mempertimbangkan waktu pengiriman order ke konsumen, kapasitas yang tersedia pada tiap stasiun kerja, waktu proses pada stasiun kerja dan aliran produksi di lantai produksi. Hasil validasi perhitungan  penentuan received date order sesuai  dengan sistem produksi PT JI dan lebih valid dibanding sistem awal. Kata kunci : make to order, received date, manufacturing leadtime, load-oriented manufacturing control   One of the competitive key of a make to order company is the accuracy in fulfilling orders which has been promised by the company towards the consumers (received date. Determining received date which has been applied by JI recently is not sufficient because it only predicts 10-12 weeks of time without considering production factors. This research designs received date with load-oriented manufacturing control model where determining received date is based on calculating manufacturing lead time that considers the time needed to deliver orders to the consumer, capacity available for each work station, work station process time, and production flow within the production floor.  Validation results from the calculations for determining received date order is adjusted to PT JI  production system and is more valid than the first system. Keywords : make to order, received date, manufacturing leadtime, load-oriented manufacturing control

Public-Private Partnerships in Chronic Disease Prevention-Part 5

Centers for Disease Control (CDC) Podcasts

2009-04-06

This podcast is the fifth of a seven part series discussing public health partnerships with the private sector. In this segment, CDC's Elizabeth Majestic and University of North Carolina's Gene Matthews talk about how the economic downturn will increase the demands on public heath.  Created: 4/6/2009 by National Center for Chronic Disease Prevention and Health Promotion (NCCDPHP).   Date Released: 4/6/2009.

Public-Private Partnerships in Chronic Disease Prevention-Part 6

Centers for Disease Control (CDC) Podcasts

2009-04-06

This podcast is the sixth of a seven part series discussing public health partnerships with the private sector. In this segment, CDC's Elizabeth Majestic and Georgia State University's Michael Eriksen discuss whether the tobacco industry has forfeited its opportunity to participate in traditional public-private partnerships.  Created: 4/6/2009 by National Center for Chronic Disease Prevention and Health Promotion (NCCDPHP).   Date Released: 4/6/2009.

Public-Private Partnerships in Chronic Disease Prevention-Part 1

Centers for Disease Control (CDC) Podcasts

2009-04-06

This podcast is the first of a seven part series discussing public health partnerships with the private sector. In this segment, CDC's Elizabeth Majestic and University of North Carolina's Gene Matthews talk about the history of public health partnerships with the for profit sector.  Created: 4/6/2009 by National Center for Chronic Disease Prevention and Health Promotion (NCCDPHP).   Date Released: 4/6/2009.

24 CFR 232.840 - Date of default.

Science.gov (United States)

2010-04-01

... 24 Housing and Urban Development 2 2010-04-01 2010-04-01 false Date of default. 232.840 Section 232.840 Housing and Urban Development Regulations Relating to Housing and Urban Development (Continued....840 Date of default. In computing loan insurance benefits, the date of default shall be considered as...

76 FR 24513 - Public Land Order No. 7765; Partial Revocation Jupiter Inlet Lighthouse Withdrawal; Florida

Science.gov (United States)

2011-05-02

...] Public Land Order No. 7765; Partial Revocation Jupiter Inlet Lighthouse Withdrawal; Florida AGENCY... as part of the Jupiter Inlet Lighthouse Outstanding Natural Area. DATES: Effective Date: May 2, 2011... U.S.C. 1787), which created the Jupiter Inlet Lighthouse Outstanding Natural Area, and which...

12 CFR 334.28 - Effective date, compliance date, and prospective application.

Science.gov (United States)

2010-01-01

... REGULATIONS AND STATEMENTS OF GENERAL POLICY FAIR CREDIT REPORTING Affiliate Marketing § 334.28 Effective date... eligibility information that you receive from an affiliate to make solicitations to a consumer if you receive...

78 FR 11155 - Advisory Committee on Supply Chain Competitiveness: Notice of Public Meeting

Science.gov (United States)

2013-02-15

... Competitiveness: Notice of Public Meeting AGENCY: International Trade Administration, U.S. Department of Commerce... discussion for a public meeting of the Advisory Committee on Supply Chain Competitiveness (Committee). DATES... infrastructure and a national freight policy designed to support U.S. export and growth competitiveness, foster...

Public information circular for shipments of irradiated reactor fuel. Revision 4

International Nuclear Information System (INIS)

1984-06-01

This publication is the fifth in a series of annual publications issued by the Nuclear Regulatory Commission in response to public information requests regarding the Commission's regulation of shipments of irradiated reactor fuel. This publication contains basically three kinds of information: (1) routes recently approved (18 months) by the Commission for the shipment of irradiated reactor fuel; (2) information regarding any safeguards-significant incidents that may be (to date none have) reported during shipments along such routes; and (3) cumulative amounts of material shipped

Annual radiation dose in thermoluminescence dating

International Nuclear Information System (INIS)

Li Huhou

1988-01-01

The annual radiation dose in thermoluminescence dating has been discussed. The autor gives an entirely new concept of the enviromental radiation in the thermoluminescence dating. Methods of annual dose detemination used by author are dating. Methods of annual dose determination used by author are summed up, and the results of different methods are compared. The emanium escapiug of three radioactive decay serieses in nature has been considered, and several determination methods are described. The contribution of cosmic rays for the annual radiation dose has been mentioned

Annual radiation dose in thermoluminescence dating

Energy Technology Data Exchange (ETDEWEB)

Huhou, Li [Chinese Academy of Social Sciences, Beijing, BJ (China). Inst. of Archaeology

1988-11-01

The annual radiation dose in thermoluminescence dating has been discussed. The autor gives an entirely new concept of the enviromental radiation in the thermoluminescence dating. Methods of annual dose detemination used by author are dating. Methods of annual dose determination used by author are summed up, and the results of different methods are compared. The emanium escapiug of three radioactive decay serieses in nature has been considered, and several determination methods are described. The contribution of cosmic rays for the annual radiation dose has been mentioned.

24 CFR 241.840 - Date of default.

Science.gov (United States)

2010-04-01

... 24 Housing and Urban Development 2 2010-04-01 2010-04-01 false Date of default. 241.840 Section... § 241.840 Date of default. In computing loan insurance benefits, the date of default shall be considered... of the lender's acceleration of the debt because of the borrower's default under the first...

16 CFR 700.2 - Date of manufacture.

Science.gov (United States)

2010-01-01

... 16 Commercial Practices 1 2010-01-01 2010-01-01 false Date of manufacture. 700.2 Section 700.2... MAGNUSON-MOSS WARRANTY ACT INTERPRETATIONS OF MAGNUSON-MOSS WARRANTY ACT § 700.2 Date of manufacture... after July 4, 1975. When a consumer purchases repair of a consumer product the date of manufacture of...

public spaces

Directory of Open Access Journals (Sweden)

Elena Grigoryeva

2013-01-01

Full Text Available The topic of this issue is PUBLIC SPACES. It is familiar and clear to every citizen. The streets and courtyards as childhood experiences remain with us forever. And these are the places where we come with our parents at weekends, where we meet friends, where we have dates and where we already come for a walk with our children.The history of public spaces is long and captivating. It was the main city squares where the most important events took place in history. The Agoras of Ancient Greece and the Roman Forums, the squares of Vatican, Paris and London, Moscow and Saint Petersburg… Greve, Trafalgar, Senate, Palace, Red, Bolotnaya – behind every name there is life of capitals, countries and nations.Public spaces, their shapes, image and development greatly influence the perception of the city as a whole. Both visitors and inhabitants can see in public spaces not only the visage but the heart, the soul and the mind of the city.Unfortunately, sometimes we have to prove the value of public spaces and defend them from those who consider them nothing but a blank space, nobody’s land destined for barbarous development.What should happen to make citizens perceive public spaces as their own and to make authorities consider development and maintenance of squares and parks their priority task against the  background of increasing competition between cities and the fight for human capital? Lately they more often say about “a high-quality human capital”. And now, when they say “the city should be liveable” they add “for all groups of citizens, including the creative class”.

77 FR 59930 - Clinical Development Programs for Disease-Modifying Agents for Peripheral Neuropathy; Public...

Science.gov (United States)

2012-10-01

...] Clinical Development Programs for Disease-Modifying Agents for Peripheral Neuropathy; Public Workshop... to the clinical development of disease-modifying agents for the treatment of peripheral neuropathy... disease-modifying products for the management of peripheral neuropathy. Date and Time: The public workshop...

Date Attachable Offline Electronic Cash Scheme

Directory of Open Access Journals (Sweden)

Chun-I Fan

2014-01-01

Full Text Available Electronic cash (e-cash is definitely one of the most popular research topics in the e-commerce field. It is very important that e-cash be able to hold the anonymity and accuracy in order to preserve the privacy and rights of customers. There are two types of e-cash in general, which are online e-cash and offline e-cash. Both systems have their own pros and cons and they can be used to construct various applications. In this paper, we pioneer to propose a provably secure and efficient offline e-cash scheme with date attachability based on the blind signature technique, where expiration date and deposit date can be embedded in an e-cash simultaneously. With the help of expiration date, the bank can manage the huge database much more easily against unlimited growth, and the deposit date cannot be forged so that users are able to calculate the amount of interests they can receive in the future correctly. Furthermore, we offer security analysis and formal proofs for all essential properties of offline e-cash, which are anonymity control, unforgeability, conditional-traceability, and no-swindling.

Date attachable offline electronic cash scheme.

Science.gov (United States)

Fan, Chun-I; Sun, Wei-Zhe; Hau, Hoi-Tung

2014-01-01

Electronic cash (e-cash) is definitely one of the most popular research topics in the e-commerce field. It is very important that e-cash be able to hold the anonymity and accuracy in order to preserve the privacy and rights of customers. There are two types of e-cash in general, which are online e-cash and offline e-cash. Both systems have their own pros and cons and they can be used to construct various applications. In this paper, we pioneer to propose a provably secure and efficient offline e-cash scheme with date attachability based on the blind signature technique, where expiration date and deposit date can be embedded in an e-cash simultaneously. With the help of expiration date, the bank can manage the huge database much more easily against unlimited growth, and the deposit date cannot be forged so that users are able to calculate the amount of interests they can receive in the future correctly. Furthermore, we offer security analysis and formal proofs for all essential properties of offline e-cash, which are anonymity control, unforgeability, conditional-traceability, and no-swindling.

Date Attachable Offline Electronic Cash Scheme

Science.gov (United States)

Sun, Wei-Zhe; Hau, Hoi-Tung

2014-01-01

Electronic cash (e-cash) is definitely one of the most popular research topics in the e-commerce field. It is very important that e-cash be able to hold the anonymity and accuracy in order to preserve the privacy and rights of customers. There are two types of e-cash in general, which are online e-cash and offline e-cash. Both systems have their own pros and cons and they can be used to construct various applications. In this paper, we pioneer to propose a provably secure and efficient offline e-cash scheme with date attachability based on the blind signature technique, where expiration date and deposit date can be embedded in an e-cash simultaneously. With the help of expiration date, the bank can manage the huge database much more easily against unlimited growth, and the deposit date cannot be forged so that users are able to calculate the amount of interests they can receive in the future correctly. Furthermore, we offer security analysis and formal proofs for all essential properties of offline e-cash, which are anonymity control, unforgeability, conditional-traceability, and no-swindling. PMID:24982931

5 CFR 880.206 - Date of death.

Science.gov (United States)

2010-01-01

... 5 Administrative Personnel 2 2010-01-01 2010-01-01 false Date of death. 880.206 Section 880.206...) RETIREMENT AND INSURANCE BENEFITS DURING PERIODS OF UNEXPLAINED ABSENCE Procedures § 880.206 Date of death... OPM, the date of death of a missing annuitant who has been determined to be dead by an authorized...

Dating by electron paramagnetic resonance

International Nuclear Information System (INIS)

Poupeau, G.; Rossi, A.M.

1984-01-01

Some natural materials behave like dosimeters in front of the ionizing particle flux coming from environmental radioactivity and the cosmic radiation. This property is used for the dating by Electron Paramagnetic Resonance (EPR). Before presenting the basic principles of the EPR analysis and the dating method which uses such a phenomenous, it is reviewed several types of application currently in course of development. (L.C.) [pt

Comparison Effects of Sucrose and Date Palm Syrup on Somatic Embryogenesis of Date Palm (Phoenix dactylifera L )

OpenAIRE

Abdullatif Alkhateeb

2008-01-01

The effect of different concentration of date palm syrup (2, 4, 6, 8 and 10%) and sucrose at concentration of 30 and 60 g/l in addition to the control (without carbon source) on the micro propagation of date palm "cv. Suckary" were investigated. The results indicated that date syrup was taken up from the media as shown by the increase in total dry weight of culture. Addition of sucrose at 60 g/l produced the highest number of somatic embryos and longest shoot equal to that produced by date sy...

ESR dating of tooth enamel samples

International Nuclear Information System (INIS)

Chen Tiemei; Yang quan; Wu En

1993-01-01

Five tooth samples from the palaeoanthropological site of Jinniushan were dated with both electron-spin-resonance (ESR) and uranium-series techniques. The ESR age of about 230 ka is in good agreement with the U-series dating result, which confirms the hypothesis of possible coexistence of Homo erect us and Homo sapiens in China. Problems in ESR dating are discussed such as: 1) inappropriate of simple exponential extrapolation for accumulated dose determination; 2)experimental measurement of alpha detection efficiency and radon emanation and 3)selection of U-uptake model

Dates and Times Made Easy with lubridate

Directory of Open Access Journals (Sweden)

Garrett Grolemund

2011-04-01

Full Text Available This paper presents the lubridate package for R, which facilitates working with dates and times. Date-times create various technical problems for the data analyst. The paper highlights these problems and oers practical advice on how to solve them using lubridate. The paper also introduces a conceptual framework for arithmetic with date-times in R.

Reduction of date microbial load with ozone

Science.gov (United States)

Farajzadeh, Davood; Qorbanpoor, Ali; Rafati, Hasan; Isfeedvajani, Mohsen Saberi

2013-01-01

Background: Date is one of the foodstuffs that are produced in tropical areas and used worldwide. Conventionally, methyl bromide and phosphine are used for date disinfection. The toxic side effects of these usual disinfectants have led food scientists to consider safer agents such as ozone for disinfection, because food safety is a top priority. The present study was performed to investigate the possibility of replacing common conventional disinfectants with ozone for date disinfection and microbial load reduction. Materials and Methods: In this experimental study, date samples were ozonized for 3 and 5 hours with 5 and 10 g/h concentrations and packed. Ozonized samples were divided into two groups and kept in an incubator which was maintained at 25°C and 40°C for 9 months. During this period, every 3 month, microbial load (bacteria, mold, and yeast) were examined in ozonized and non-ozonized samples. Results: This study showed that ozonization with 5 g/h for 3 hours, 5 g/h for 5 hours, 10 g/h for 3 hours, and 10 g/h for 5 hours leads to about 25%, 25%, 53%, and 46% reduction in date mold and yeast load and about 6%, 9%, 76%, and 74.7% reduction in date bacterial load at baseline phase, respectively. Appropriate concentration and duration of ozonization for microbial load reduction were 10 g/h and 3 hours. Conclusion: Date ozonization is an appropriate method for microbial load reduction and leads to an increase in the shelf life of dates. PMID:24124432

76 FR 71321 - North Pacific Fishery Management Council; Public Meetings

Science.gov (United States)

2011-11-17

... public meetings, December 5-13, 2011 at the Anchorage Hilton Hotel. DATES: The Council will begin its... sessions. ADDRESSES: The meetings will be held at the Hilton Hotel, 500 West Third Avenue, Anchorage, AK...

78 FR 27366 - North Pacific Fishery Management Council; Public Meetings

Science.gov (United States)

2013-05-10

... public meetings, June 3-11, 2013 at the Centennial Hall, 101 Egan Drive, Juneau, AK. DATES: The Council... sessions. ADDRESSES: The Council meeting will be held at Centennial Hall, 101 Egan Drive, Juneau, AK...

7 CFR 1421.101 - Maturity dates.

Science.gov (United States)

2010-01-01

... filed and disbursed except, for transferred marketing assistance loan collateral. The maturity date for transferred marketing assistance loan collateral will be the maturity date applicable to the original loan... AGRICULTURE LOANS, PURCHASES, AND OTHER OPERATIONS GRAINS AND SIMILARLY HANDLED COMMODITIES-MARKETING...

Gestational dating by metabolic profile at birth: a California cohort study

Science.gov (United States)

Jelliffe-Pawlowski, Laura L.; Norton, Mary E.; Baer, Rebecca J.; Santos, Nicole; Rutherford, George W.

2016-01-01

Background Accurate gestational dating is a critical component of obstetric and newborn care. In the absence of early ultrasound, many clinicians rely on less accurate measures, such as last menstrual period or symphysis-fundal height during pregnancy, or Dubowitz scoring or the Ballard (or New Ballard) method at birth. These measures often underestimate or overestimate gestational age and can lead to misclassification of babies as born preterm, which has both short- and long-term clinical care and public health implications. Objective We sought to evaluate whether metabolic markers in newborns measured as part of routine screening for treatable inborn errors of metabolism can be used to develop a population-level metabolic gestational dating algorithm that is robust despite intrauterine growth restriction and can be used when fetal ultrasound dating is not available. We focused specifically on the ability of these markers to differentiate preterm births (PTBs) (PTBs and term births. Using a linear discriminate analyses-derived linear function, we were able to sort PTBs and term births accurately with sensitivities and specificities of ≥95% in both the training and testing subsets. Assignment of a specific week of gestation in those identified as PTBs resulted in the correct assignment of week ±2 weeks in 89.8% of all newborns in the training and 91.7% of those in the testing subset. When PTB rates were modeled using the metabolic dating algorithm compared to fetal ultrasound, PTB rates were 7.15% vs 6.11% in the training subset and 7.31% vs 6.25% in the testing subset. Conclusion When considered in combination with birthweight and hours of age at test, metabolic profile evaluated within 8 days of birth appears to be a useful measure of PTB and, among those born preterm, of specific week of gestation ±2 weeks. Dating by metabolic profile may be useful in instances where there is no fetal ultrasound due to lack of availability or late entry into care. PMID

[Present situation of awareness of acquired immune deficiency syndrome (AIDS) knowledge and AIDS-related behaviors among youth students in gay dating sites].

Science.gov (United States)

2017-06-18

To investigate the awareness of acquired immune deficiency syndrome (AIDS) knowledge and AIDS-related behaviors among youth students in gay dating sites, and to provide evidences for AIDS prevention education through the internet. The students in gay dating sites, selected by a snowball sampling, were interviewed by questionnaires. Chi-square tests were used to analyze the awareness of AIDS knowledge among the students of different characteristics. The Logistic regression was used to analyze the factors associated with ever testing for HIV. In the study, 469 youth students in gay dating sites filled in the questionnaires, and a total of 442 (94.2%) valid samples were collected. The awareness of HIV/AIDS knowledge for the public among the youth students in gay dating sites was 83.9% (371).The awareness of HIV/AIDS knowledge for the youth students was 77.1% (341), and the rate of ever testing for HIV was 52.0% (230). The awareness of HIV/AIDS knowledge for the public in the students were different in different age groups (P=0.001), different marital statuses (Pdating sites was 75.1% (332), and the rate of multiple sexual partnerships among the youth students was 41.3% (137). Compared with homosexual orientation, sexual orientation as heterosexual (OR=0.282, 95%CI: 0.151 to 0.528) and not sure (OR=0.175, 95%CI: 0.035 to 0.885) were risk factors of ever testing for HIV. Multiple sexual partnerships (OR=2.103, 95%CI: 1.278 to 3.462) were promoting factors of ever testing for HIV. The rate of high-risk behaviors among the youth students in gay dating sites was high. The concern should be raised to heterosexual male students who had tendency to homosexual behavior. The AIDS prevention education should be developed in gay dating sites, to improve the self-protection awareness of the youth students.

Public health services and systems research: current state of finance research.

Science.gov (United States)

Ingram, Richard C; Bernet, Patrick M; Costich, Julia F

2012-11-01

There is a growing recognition that the US public health system should strive for efficiency-that it should determine the optimal ways to utilize limited resources to improve and protect public health. The field of public health finance research is a critical part of efforts to understand the most efficient ways to use resources. This article discusses the current state of public health finance research through a review of public health finance literature, chronicles important lessons learned from public health finance research to date, discusses the challenges faced by those seeking to conduct financial research on the public health system, and discusses the role of public health finance research in relation to the broader endeavor of Public Health Services and Systems Research.

77 FR 60380 - Caribbean Fishery Management Council; Public Meeting

Science.gov (United States)

2012-10-03

... Caribbean Fishery Management Council's Scientific and Statistical Committee (SSC) will hold meetings. DATES... Fishery Management Council; Public Meeting AGENCY: National Marine Fisheries Service (NMFS), National... CONTACT: Caribbean Fishery Management Council, 268 Mu[ntilde]oz Rivera Avenue, Suite 1108, San Juan...

Radiocarbon dating of lake sediments

OpenAIRE

Pocevičius, Matas

2016-01-01

Matas Pocevičius, Radiocarbon dating of lake sediments, bachelor thesis, Vilnius University, Faculty of Physics, Department of General Physics and Spectroscopy, physics, Vilnius, 45 p., 2016. The aim of this study is to evaluate the possibility of radiocarbon dating application for Tapeliai lake bottom sediments. The literature review discusses topics related to accelerator mass spectrometry, principles of radiocarbon formation, importance of nuclear fallout for 14C, possible applications of ...

Directionality of physical and psychological dating violence among adolescents in Recife, Brazil