gebhart/patrepeval huggingface dataset:
Performance of permeation tubes as standard gas sources (1971)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPerformance of permeation tubes as standard gas sourcesBernard E. Saltzman, William R. Burg, and Gopalakrishnan RamaswamyCite this: Environ. Sci. Technol. 1971, 5, 11, 1121–1128Publication Date (Print):November 1, 1971Publication History Published online1 May 2002Published inissue 1 November 1971https://pubs.acs.org/doi/10.1021/es60058a004https://doi.org/10.1021/es60058a004research-articleACS PublicationsRequest reuse permissionsArticle Views275Altmetric-Citations28LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InRedditEmail Other access optionsGet e-Alertsclose Get e-Alerts
Abstract HMS Rectifier: A Novel Hybrid MOS Schottky Diode Concept with No Barrier Lowering, Low Leakage Current and High Breakdown Voltage (2005)

In this paper we propose and demonstrate a novel Schottky device concept, which is capable of achieving ultra low leakage current with high breakdown voltage. The proposed Schottky diode is conceived and designed with a lateral configuration for deep sub-micron smart power technologies but can also be designed in a vertical discrete configuration. A combination of depletion mode MOSFET and n or p-type Schottky junctions are utilized to create hybrid MOS Schottky (HMS) diode where the high reverse bias voltage is blocked by the MOSFET. The device is first demonstrated in a circuit configuration with discrete Schottky diode and a MOSFET. Subsequently, low separate monolithic integrated versions of the diode are proposed and realized. The integrated version of the diode achieved near-ideal characteristics with an ideality factor, n of 1.04 and a barrier height o/sub B/ of 0.64eV.
The early experience assumption: Past, present, and future (2000)

The assumption that “early experience is important” has attracted a considerable amount of research over the last half century. As a result, both our thinking about the role of early experience in personality development and the nature of that research have changed drastically. It has become apparent that there is no direct relationship between age and the impact which experience has on the individual, that young children are not necessarily more vulnerable even to quite severe adversities than older children, and that considerable variability exists in long-term outcome. Research has therefore had to take an evermore complex form, moving away from a mechanical association of early experience with outcome assessments to a much more dynamically oriented approach, in which account is also taken of inherent characteristics of the individual, the social context both before and after the experience, and the various turning points that the individual negotiates in traversing the developmental path to maturity. Prospective longitudinal studies are therefore essential to our understanding of the link between early experience and later adjustment, and these studies need to include not only accounts of the external experiences encountered but also assessments of the individual’s internal representations resulting from the encounters. It has also become apparent that some behaviour systems are more vulnerable than others and that a more thoughtful use of outcome measures is therefore necessary. Although the belief in the irreversibility of early experience as inevitable has been abandoned, the parameters defining the limits of reversibility have yet to be determined.
New Efficient and Secure Protocols for Verifiable Signature Sharing and Other Applications (1998)

Abstract. Verifiable Signature Sharing (VΣS) enables the recipient of a digital signature, who is not necessarily the original signer, to share such signature among n proxies so that a subset of them can later reconstruct it. The original RSA and Rabin VΣS protocols were subsequently broken and the original DSS VΣS lacks a formal proof of security. We present new protocols for RSA, Rabin and DSS VΣS. Our protocols are efficient and provably secure and can tolerate the malicious behavior of up to half of the proxies. Furthermore we believe that some of our techniques are of independent interest. Some of the by-products of our main result are: a new threshold cryptosystem, a new undeniable signature scheme and a way to create binding RSA cryptosystems. 1
<scp>G</scp>ibson,<scp>J</scp>ames<scp>J</scp>. (2005)

Abstract James J. Gibson (1904–1979) was a leading American scholar and researcher in the field of perception. His dynamic and functional approach radically changed perceptual theories of the time and led to his own theory, the ecological approach to perception.
Direct targeting of SUZ12/ROCK2 by miR-200b/c inhibits cholangiocarcinoma tumourigenesis and metastasis (2013)

Our study shows that miR-200b/c has a critical role in the regulation of the tumorigenic and metastatic capacity of cholangiocarcinoma and reveals the probable underlying mechanisms.
[Participation of procoagulant activity of cultured rabbit lens epithelial cells in fibrin formation]. (1993)

To clarify the participation of the lens epithelial cells in the postoperative fibrin formation in cataract surgery, the generation of procoagulant activity (PCA) by cultured rabbit lens epithelial (RLE) cells was investigated. PCA was detected in the homogenates of RLE cells cultured for three hours. PCA was increased approximately three- to four-fold by lipopolysaccharide (LPS) stimulation in a dose dependent manner. Treatment of the RLE cells with Concanavalin A resulted in a decrease of PCA. PCA of the RLE cells was not observed in Factor VII deficient plasma, as a standard tissue factor (TF). Parallelism was recognized between the dose response regression lines for the PCA in the RLE cells and standard TF. These results suggest that the PCA in the RLE cells is similar to TF, which has glycoprotein as an active site and requires coagulation factor VII. Some arachidonic acid metabolic cascade inhibitors which show an inhibitory effect for fibrin formation in vivo reduced the generation of PCA by the RLE cells in vitro. The activation of arachidonic acid cascade followed by the generation of PCA in the RLE cells may participate in postoperative fibrin formation.
Quality Control: Changing with the Times (1990)

A brief review of the historical development of quality control is provided, followed by a discussion of some of its fundamental concepts. Two statistical techniques widely used in the traditional quality control programmes are then described and compared with the Japanese Taguchi Methods, an increasingly popular new approach to quality control.
Statistics with Confidence: Confidence Intervals and Statistical Guidelines. (1990)

Statistics with Confidence is a widely acclaimed classic introduction to confidence intervals. The second edition, with contributions from leading medical statisticians, has been thoroughly revised and expanded. New chapters include: * diagnostic studies. * clinical trials and meta analyses. * confidence intervals and sample sizes. The Windows computer software (CIA) in the accompanying disk enables confidence intervals to be calculated using the methods described in the book. This comprehensive collection of methods includes some that are not readily available elsewhere. Featuring methods for using confidence intervals, illustrative worked examples and helpful checklists this is a truly practical guide for clinical readers to a fundamental aspect of medical statistics.
The Indirect Neuron-astrocyte Coculture Assay: An <em>In Vitro</em> Set-up for the Detailed Investigation of Neuron-glia Interactions (2016)

Proper neuronal development and function is the prerequisite of the developing and the adult brain. However, the mechanisms underlying the highly controlled formation and maintenance of complex neuronal networks are not completely understood thus far. The open questions concerning neurons in health and disease are diverse and reaching from understanding the basic development to investigating human related pathologies, e.g., Alzheimer's disease and Schizophrenia. The most detailed analysis of neurons can be performed in vitro. However, neurons are demanding cells and need the additional support of astrocytes for their long-term survival. This cellular heterogeneity is in conflict with the aim to dissect the analysis of neurons and astrocytes. We present here a cell-culture assay that allows for the long-term cocultivation of pure primary neurons and astrocytes, which share the same chemically defined medium, while being physically separated. In this setup, the cultures survive for up to four weeks and the assay is suitable for a diversity of investigations concerning neuron-glia interaction.
Some ester derivatives of a 2-Methylalanine as intermediates in peptide synthesis (1980)

The o-nitrophenylthio derivative of 2-methylalanine served as the precursor of several new ester hydrochlorides, which have been investigated as intermediates for the synthesis of peptides containing this amino acid. Particular consideration is given to the effect of the steric hindrance associated with 2-methylalanine. Synthesis of a 2- methylalanyl analogue of the opiate agonist leucine-enkephalin is described.
133. 6β-Hydroxy-3 : 5-cyclopregnan-20-one and some related compounds (1957)

D. K. Patel, V. Petrow and I. A. Stuart-Webb, J. Chem. Soc., 1957, 665 DOI: 10.1039/JR9570000665
Reverberation time estimationbased on multidelay acousticecho cancellation (2012)

Acoustic echo cancellation (AEC) and de-reverberation technologies are increasingly important to improve the voice communication and control performance in challenging acoustic environments. In both voice over IP teleconferencing and voice command control, AEC is needed to remove the far-end speech or the playback audio from the speakers and allow the near-end speech to enter the command control system or the far-end listener. Even there is no far-end speech, the near-end speech, i.e. captured signal can be degraded by reverberation when a speaker is far away from the microphone. This reverberation interference significantly degrades speech quality and speech recognition accuracy. A spectral subtraction based approach has been used for reverberation reduction in our system. In this paper, we propose to estimate the reverberation time based on the estimated room impulse response from the multidelay acoustic echo canceller. The approach is able to effectively reduce reverberation in noisy environments while maintaining low complexity on system level.
Intelligent radio network selection for next generation networks (2010)

In a tightly coupled Next Generation Wireless Network (NGWN), a large number of different radio access technologies (RATs) will be integrated into one common network. These RATs are owned by one operator or multi-cooperative operators. Selecting the most optimal and promising RAT is an important consideration for overall networks stability, resource utilization, operator benefits, user satisfaction, and Quality of Service (QoS) provisioning. However, choosing the best RAT is not a trivial task and there are many parameters and criteria to take into account when selecting the best access network. This paper presents and designs a multi criteria RNS solution that considers an environment with a co-existed WWAN, WMAN, and WLAN. The developed solution contains two modules. The first module resides in the user terminal. It contains a network-assisted terminal-controlled algorithm to reflect the user viewpoint in the selection process. The second module resides in the CRRM entity. It contains a terminal-assisted network-controlled algorithm to reflect the operator viewpoint of the selection decision. The developed solution uses a combined parallel fuzzy logic control and Multi-Criteria Decision Making (MCDM) system to achieve scalable, flexible, general, and adaptable solution. The simulation results show that our solution has better and more robust performance over several reference algorithms.
XV-9A HOT CYCLE RESEARCH AIRCRAFT PROGRAM (1966)

Abstract : The report summarizes a research program covering the design, fabrication, and test of the XV-9A Hot Cycle Research Aircraft. Discussion of the program is broken into five major areas: design and fabrication, engine and whirl tests, component testing, ground tests, and flight tests. During the program, conducted from 29 September 1962 through 15 March 1965, the flight feasibility of the Hot Cycle rotor was successfully validated.
Bending Vibrations of a Pipe Line Containing Flowing Fluid (1952)

Abstract Both free vibrations and forced motions due to crosswinds may create important problems in the design of pipe lines supported above ground. An analytic investigation, based on simple beam theory, shows that the flow of fluid in such a pipe line has no beneficial effect upon the vibrations. The fluid velocity causes a dynamic coupling of the simple modes of vibration so that the normal modes of vibration are of complex shape with 90-deg out-of-phase components. The solution is presented for free vibrations and for steady-state forced vibrations, and it is shown that large amplitudes may be developed if the amount of damping is too small. It is shown that at low fluid velocities there is negligible effect upon the vibration of the pipe line, and at a certain high critical velocity the fluid flow causes a dynamic instability. The present analysis revises the conclusions which appeared in an earlier publication.
Modeling the perception of concurrent vowels: Vowels with different fundamental frequencies (1990)

If two vowels with different fundamental frequencies (fo's) are presented simultaneously and monaurally, listeners often hear two talkers producing different vowels on different pitches. This paper describes the evaluation of four computational models of the auditory and perceptual processes which may underlie this ability. Each model involves four stages: (i) frequency analysis using an "auditory" filter bank, (ii) determination of the pitches present in the stimulus, (iii) segregation of the competing speech sources by grouping energy associated with each pitch to create two derived spectral patterns, and (iv) classification of the derived spectral patterns to predict the probabilities of listeners' vowel-identification responses. The "place" models carry out the operations of pitch determination and spectral segregation by analyzing the distribution of rms levels across the channels of the filter bank. The "place-time" models carry out these operations by analyzing the periodicities in the waveforms in each channel. In their "linear" versions, the place and place-time models operate directly on the waveforms emerging from the filters. In their "nonlinear" versions, analogous operations are applied to the output of an additional stage which applied a compressive nonlinearity to the filtered waveforms. Compared to the other three models, the nonlinear place-time model provides the most accurate estimates of the fo's of paris of concurrent synthetic vowels and comes closest to predicting the identification responses of listeners to such stimuli. Although the model has several limitations, the results are compatible with the idea that a place-time analysis is used to segregate competing sound sources.
Parallel computing in India (1996)

India has made significant strides in the development of high performance parallel computers. The author summarizes the status of some parallel computing projects initiated at the Center for Development of Advanced Computing in India, and assesses the viability of these efforts both in India and as part of the worldwide picture of advanced computing products.
Direct Reprogramming of Adult Somatic Cells into other Lineages: Past Evidence and Future Perspectives (2013)

Direct reprogramming of an adult cell into another differentiated lineage-such as fibroblasts into neurons, cardiomyocytes, or blood cells-without passage through an undifferentiated pluripotent stage is a new area of research that has recently emerged alongside stem cell technology and induced pluripotent stem cell reprogramming; indeed, this avenue of investigation has begun to play a central role in basic biological research and regenerative medicine. Even though the field seems new, its origins go back to the 1980s when it was demonstrated that differentiated adult cells can be converted into another cell lineage through the overexpression of transcription factors, establishing mature cell plasticity. Here, we retrace transdifferentiation experiments from the discovery of master control genes to recent in vivo reprogramming of one somatic cell into another from the perspective of possible applications for the development of new therapeutic approaches for human diseases.
Sulfonated multiwalled carbon nanotubes (MWCNTs) as a new, efficient, and recyclable heterogeneous nanocatalyst for the synthesis of amines (2012)

Sulfonated multiwalled carbon nanotubes (MWCNTs) were synthesized by chemical vapor deposition (CVD) as a new and facile one-pot method using acetylene (as the CNT precursor), thiophene (as the sulfur precursor), and ferrocene (for in situ liberation of metal nanoparticles as the CNT nanocatalyst). A low catalytic amount of the resulting sulfonated MWCNTs with a turnover number (TON) up to 980 and a turnover frequency (TOF) up to 11 160 h –1 was utilized as a new and recyclable heterogeneous nanocatalyst for the efficient one-pot synthesis of various amines (secondary and tertiary) by direct reductive amination of aldehydes and ketones using NaBH 4 . The catalyst was easily isolated from the reaction mixture by simple filtration and reused at least five times without significant degradation in activity.
Genus <i>Bupleurum</i>: a review of its phytochemistry, pharmacology and modes of action (2010)

Further investigations and screenings are required to explore other Bupleurum species, to evaluate the clinical safety and possible interactions with other drugs or herbs. Standardization of Bupleuri extracts is crucial for them being integrated into conventional medicine due to large chemical and biological variations between different species and varieties.
Candidate Serological Biomarkers for Cancer Identified from the Secretomes of 23 Cancer Cell Lines and the Human Protein Atlas (2010)

Although cancer cell secretome profiling is a promising strategy used to identify potential body fluid-accessible cancer biomarkers, questions remain regarding the depth to which the cancer cell secretome can be mined and the efficiency with which researchers can select useful candidates from the growing list of identified proteins. Therefore, we analyzed the secretomes of 23 human cancer cell lines derived from 11 cancer types using one-dimensional SDS-PAGE and nano-LC-MS/MS performed on an LTQ-Orbitrap mass spectrometer to generate a more comprehensive cancer cell secretome. A total of 31,180 proteins was detected, accounting for 4,584 non-redundant proteins, with an average of 1,300 proteins identified per cell line. Using protein secretion-predictive algorithms, 55.8% of the proteins appeared to be released or shed from cells. The identified proteins were selected as potential marker candidates according to three strategies: (i) proteins apparently secreted by one cancer type but not by others (cancer type-specific marker candidates), (ii) proteins released by most cancer cell lines (pan-cancer marker candidates), and (iii) proteins putatively linked to cancer-relevant pathways. We then examined protein expression profiles in the Human Protein Atlas to identify biomarker candidates that were simultaneously detected in the secretomes and highly expressed in cancer tissues. This analysis yielded 6-137 marker candidates selective for each tumor type and 94 potential pan-cancer markers. Among these, we selectively validated monocyte differentiation antigen CD14 (for liver cancer), stromal cell-derived factor 1 (for lung cancer), and cathepsin L1 and interferon-induced 17-kDa protein (for nasopharyngeal carcinoma) as potential serological cancer markers. In summary, the proteins identified from the secretomes of 23 cancer cell lines and the Human Protein Atlas represent a focused reservoir of potential cancer biomarkers.
Stereochemistry of Dehydrogenation by <i>D</i>-Galactose Oxidase (1972)

not available
Weibull vs. Lognormal Distributions for Fluvial Gravels (2000)

ABSTRACT Krumbein and Tisdel (1940) suggested that the particle size distribution of a weathered source rock tends to follow the Rosin distribution, whereas with distance downstream, fluvially transported sediment tends to follow the lognormal distribution. This issue can be illuminated somewhat by recognizing that the Rosin distribution is the same as the well-studied Weibull distribution. However, it can be difficult to distinguish the lognormal, Rosin (Weibull), and even gamma distributions in particle size distribution curves. Brennan and Durrett (1987) suggest that differences in splitting rates can give rise to the lognormal vs. Weibull distributions, but the geological implications of these concepts, and the integration of the effects of sorting by fluvial transport, remain to be addressed.
Adventures in the Forth Dimension (2000)

Forth is a language that, for most programmers, is like the back side of the Moon: they know it is there but have never laid eyes on it. Yet Forth is mature (about as old as Lisp or C); ubiquitous in everyday applications such as automated tellers, package tracking, airline reservations, telephone switching systems, and microcontrollers everywhere; and built into millions of personal computers and workstations in the guise of IEEE Open Firmware. The page description language PostScript also has its roots in Forth.
COVID-19 and end of life (2020)

TEST 02 - Elsevier's Scopus, the largest abstract and citation database of peer-reviewed literature. Search and access research from the science, technology, medicine, social sciences and arts and humanities fields.
The effect of formula application on yield of Zunyu 3 and its application parameters. (2009)

Zunyu 3,a hybrid maize variety,was tested under different combinations of N,P and K application norm to investigate its optimum application combination.The results showed that the tested different application combinations all had the significant effect on its yield and manurial effect.The optimum application combination is N 14.38 kg/667m2,P2O5 8.61 kg/667m2 and K2O 13.83 kg/667m2 and its ratio of N∶P2O5∶K2O is 1∶0.60∶0.96.The application parameters of Zunyu 3 including fertilizer utilization rate,fertilizer agronomic efficiency and fertilizer partial productive forces are obtained at the same time.