gebhart/patrepeval huggingface dataset:
Synthesis of 3-iodo-L-thyronine and its iodinated derivatives (1976)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSynthesis of 3-iodo-L-thyronine and its iodinated derivativesPaul Block Jr.Cite this: J. Med. Chem. 1976, 19, 8, 1067–1069Publication Date (Print):August 1, 1976Publication History Published online1 May 2002Published inissue 1 August 1976https://pubs.acs.org/doi/10.1021/jm00230a018https://doi.org/10.1021/jm00230a018research-articleACS PublicationsRequest reuse permissionsArticle Views258Altmetric-Citations6LEARN 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
Accepting Free Content during the COVID-19 Pandemic: An Assessment (2021)

Deciding what risks are worth taking amidst a global pandemic poses quite specific challenges for Acquisitions librarians. For example, given that virtually all colleges and universities now offer classes electronically, demand for electronic library content has increased sharply. This challenging situation is magnified at smaller campuses, due to their smaller Acquisitions budgets and having to retain substantial print content. In response, vendors are offering free content to those affected and, given the usual limits on library funding, librarians may find such offers almost irresistible. But while there can be advantages to accepting such content, it can be a double-edged sword. In this paper, we examine how crisis situations, such as the current pandemic, affect librarian decision-making, in particular concerning accepting free content from vendors. How do we best navigate these new territories without losing our bearings amidst a pandemic? And how might these decisions and situations affect our patrons? We focus our research on three important issues, with both practical and ethical implications. First, the issue of patron privacy rights. The free content being offered by vendors poses substantial privacy risks for libraries and patrons, because it is not licensed and thus not governed by privacy agreements. Second, we examine the problem of ensuring accessibility for all users and the extent to which accessibility can be guaranteed with non-licensed content. Finally, we look at the likely impact on faculty-librarian relationships when free content will have to be relinquished and libraries cannot afford the same content. Such changes will likely cause tension between faculty and librarians and be especially frustrating for students. While vendors coming to the aid of the libraries during this time is potentially a generous gesture, it also implies pitfalls and negative impacts in its aftermath.
A radiographical study on the changes in height of grafting materials after sinus lift: a comparison between two types of xenogenic materials (2010)

The results showed that there was significant reduction in comparison with data right after placement, after 7 to 12 months, 13 to 24 months, and over 25 months; however, reduction rates between each period have shown to be without significance. No significant difference in height change was observed between the Bio-Oss(R) and the OCS-B(R) groups.
<i>In vitro</i>and<i>in vivo</i>evaluation of indomethacin nanoemulsion as a transdermal delivery system (2013)

Nanoemulsions were investigated as transdermal delivery systems for indomethacin. Six formulae were prepared using Triacetin, capryol 90 and labrafil as oils; Tween 80 and pluronic F127 as surfactants and transcutol and propylene glycol as co-surfactants. The continuous phase was that one with the larger volume fraction regardless of the hydrophile-lipophile balance of the surfactant/co-surfactant mixture. Surfactant type had significant effects on particle size and rheological properties of the nanoemulsions. Pluronic-based formulae recorded the lowest particle sizes and the highest viscosities. The prepared nanoemulsions increased drug solubility up to 610-fold compared with water. Refractive index measurements proved the compatibility between indomethacin and the used nanoemulsion components. Indomethacin was almost completely ionized at the pH values of the prepared nanoemulsions, suggesting drug absorption via the hydrophilic pathway of the skin upon topical application. Nanoemulsions controlled indomethacin release through semipermeable membrane and enhanced its permeation through excised newly born albino rat skin. The formulae were stable for six months at ambient conditions. Transdermal single application of selected formulae resulted in effective plasma levels up to 32 h in rats. Nanoemulsions were significantly superior to other investigated transdermal approaches at solubilizing indomethacin and achieving higher plasma levels.
Synthesis and Characterization of a Nonionic Urethane-Based Thickener (2011)

Hydrophobically modified ethoxylated urethanes have been synthesized using polyethylene glycol, hexamethylene diisocyanate and cetyl alcohol. These types of thickeners are categorized as nonionic associative thickeners. The HEURs were prepared in two steps. Initially an ethoxylated urethane prepolymer was synthesized through a reaction between a polyethylene glycol (Mn=6000) and hexamethylene diisocyanate using the step growth polymerization technique, then modification was carried out by reaction of cetyl alcohol with the obtained prepolymer. HEURs were characterized using 1H NMR, FTIR and GPC techniques. The rheological properties of incorporated samples in different media proved the considerable thickening efficiency of the produced HEUR.
Activity of Oral Drugs against Leishmania Tropica in Human Macrophages in Vitro (1983)

Because of the need for orally active antileishmanial agents, orally administrable drugs have sometimes been used to treat human leishmaniases without prior demonstration of efficacy in experimental models. The antileishmanial activity of such agents was tested against Leishmania tropica (a cause of cutaneous leishmaniasis) within human macrophages in vitro. Although trimethoprim + sulfamethoxazole and isoniazid + rifampin have been reported as efficacious orally in certain human studies of cutaneous disease, these drugs were ineffective in vitro (less than or equal to 40% parasite elimination) at peak achievable serum levels. The combination of allopurinol and Pentostam is being tested in humans. In vitro, allopurinol (5 micrograms/ml) augmented the antileishmanial effect of a low concentration of Pentostam (5 micrograms/ml) but not of a higher concentration of Pentostam (20 micrograms/ml). Nifurtimox is a nitrofuran which has questionable activity against human cutaneous disease. Nifurtimox was similarly only 50% effective in vitro at peak achievable serum levels (1.0-3.0 micrograms/ml). However, furazolidone, another orally administered nitrofuran, eliminated 92% of parasites at 1.0 micrograms/ml. Chlorpromazine and quinacrine are concentrated in tissues that are susceptible to infection by Leishmania. Chlorpromazine and quinacrine eliminated only 15% and 35% of organisms in vitro at achievable serum levels (less than or equal to 0.3 microgram/ml), but eliminated virtually all organisms in vitro at possible achievable tissue levels. Both the negative and the positive data of this report may aid in selection of effective orally active agents for in vivo trials.
A self-compensated smart LVDT transducer (1989)

The authors present a novel technique of dual secondary coils for self-compensation of a linear variable differential transformer (LVDT) transducer for variations in excitation current and frequency and changes in ambient and coil temperatures. Experiments on compensated LVDT exhibited high sensitivity, good linearity, insensitivity to variations in excitation current and frequency, and self-compensation for changes in temperature. The transducer is suitable for both favorable and hostile environmental conditions for parameter acquisition and data handling.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
Sentiment Analysis of Social Media via Multimodal Feature Fusion (2020)

In recent years, with the popularity of social media, users are increasingly keen to express their feelings and opinions in the form of pictures and text, which makes multimodal data with text and pictures the con tent type with the most growth. Most of the information posted by users on social media has obvious sentimental aspects, and multimodal sentiment analysis has become an important research field. Previous studies on multimodal sentiment analysis have primarily focused on extracting text and image features separately and then combining them for sentiment classification. These studies often ignore the interaction between text and images. Therefore, this paper proposes a new multimodal sentiment analysis model. The model first eliminates noise interference in textual data and extracts more important image features. Then, in the feature-fusion part based on the attention mechanism, the text and images learn the internal features from each other through symmetry. Then the fusion features are applied to sentiment classification tasks. The experimental results on two common multimodal sentiment datasets demonstrate the effectiveness of the proposed model.
Nonlinear network reduction for distribution networks using the holomorphic embedding method (2016)

This paper presents three different true nonlinear reduction methods to obtain network equivalents for radial (distribution-type) networks (using the holomorphically embedded power flow algorithm), which are exact, given computational precision limitations, even when the loads and the real-power generations are scaled. The proposed reduction methods are applied in this paper to reduce a radial distribution system and provide a two-bus-model equivalent which accurately models the real and reactive power load seen at the transmission network due to random changes in the distribution system load. Numerical results are provided for a radial 14-bus system to show the accuracy of the proposed methods in preserving voltages and slack bus power. The approach is shown to have better performance than Ward reduction even when the loads are increased in a random manner.
Fermentation Process for Itaconic Acid. (1945)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTFermentation Process for Itaconic Acid.Lewis B. Lockwood and George E. WardCite this: Ind. Eng. Chem. 1945, 37, 4, 405–406Publication Date (Print):April 1, 1945Publication History Published online1 May 2002Published inissue 1 April 1945https://pubs.acs.org/doi/10.1021/ie50424a029https://doi.org/10.1021/ie50424a029research-articleACS PublicationsRequest reuse permissionsArticle Views568Altmetric-Citations30LEARN 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 options Get e-Alerts
EFFECTS OF ENDING EMPLOYER-PAID PARKING FOR SOLO DRIVERS (1984)

The change in employee travel choices at a company in Los Angeles that ended employer-paid parking for solo drivers who do not use their cars at work is documented. The modal split among affected employees changed in the following ways: solo driving fell from 42 to 8 percent, carpooling rose from 17 to 58 percent; and bus ridership declined from 38 to 28 percent. There was no change in the modal split at a nearby comparison company that continued to offer free parking to all employees. It is concluded that ending employer-paid parking for solo drivers significantly influenced employees' modal choices.
Group Delay Control of Super-Imposed Fiber Gratings Using a Two-Column System Mounted on a Rotatable Disk (2004)

A novel method for dispersion control of a fiber grating is proposed and experimentally demonstrated. A super-imposed fiber Bragg grating (SFBG) is attached on an elastic plate and wound around two columns, which are rotated on a disk. The system induces strain gradient for chirping that can be controlled by the rotation of the disk. The central reflection wavelength can be either maintained or changed by controlling the position of the grating with respect to the two columns. Various group delay curves can be obtained by altering the shape of the plate on which the SFBG is attached. In addition, the proposed device can also be used as a broad-band tunable filter in optical communication systems.
[Clinical use of pantethine by parenteral route in the treatment of hyperlipidemia]. (1987)

Recent investigations have confirmed the effectiveness and the excellent tolerability of pantethine, a derivative of pantetheine, an essential part of the acetylation coenzyme CoA, administered P.O., in normalizing the blood lipid concentrations of patients with hyperlipidemias. A group of 18 patients with hyperlipidemias (9 M, 9 F), with an average age of 52.6 years, was submitted to pantethine parenteral treatment. After a 20 days wash-out, pantethine (400 mg/day; BID) was administered intramuscularly, for 20 days. Total cholesterol, triglycerides, HDL-cholesterol, apo A-1 and B lipoprotein, uric acid in serum, glycemia, CBC, B.U.N., creatininemia, E.S.R., SGOT, SGPT, bilirubinemia, cardiac frequency, blood pressure and body weight were controlled before and after treatment. The drug showed to have a therapeutic effectiveness by a rapid and significant improvement in the blood lipid pattern with reduction of total cholesterol, triglycerides and apo-B lipoprotein and increase of HDL-cholesterol and apo A-1 lipoprotein. The tolerability of pantethine at the stated dosage and mode of administration was invariably excellent, with non complaints or visible side effects imputable to the test drug. BUN, creatininemia, glycemia, SGOT, SGPT, bilirubinemia, E.S.R., CBC, cardiac frequency and blood pressure readings showed no noteworthy changes throughout the study.
<i>T</i>-Nb<sub>2</sub>O<sub>5</sub> quantum dots prepared by electrodeposition for fast Li ion intercalation/deintercalation (2017)

T-Nb<sub>2</sub>O<sub>5</sub> quantum dots were electrodeposited on Ti nanorod arrays to prepare Ti@T-Nb<sub>2</sub>O<sub>5</sub> core-shell array electrodes. The particle size of T-Nb<sub>2</sub>O<sub>5</sub> could be manipulated by adjusting the depositing current density, and quantum dots several nanometers in size could be obtained at a deposition current of 6 mA cm<sup>-2</sup>. Benefiting from the ultra-small particle size of T-Nb<sub>2</sub>O<sub>5</sub> and the array structure, Ti@T-Nb<sub>2</sub>O<sub>5</sub> nanorod arrays exhibited good rate capability and durability when used as self-supported Li ion battery anodes. The arrays possessed capacities of 350 and 70 mAh g<sup>-1</sup> at rate currents of 0.06 and 30 A g<sup>-1</sup>, respectively. Furthermore, the electrodes maintained 500 cycles without obvious decay at a high rate current of 30 A g<sup>-1</sup>.
Rates of crystallization of copolyamides. II. Random copolymers of nylons 66 and 6 (1970)

Abstract Rates of crystallization of copolyamides of nylons 66 and 6 have been measured by a photometric technique using a hot‐stage microscope. The copolymers all show some crystallinity, but the temperatures of crystallization are reduced as more comonomer is introduced. A close correlation between melting and crystallization behavior is observed. The copolymerized component is acting as a diluent rather than entering the homopolymer crystal.
Genetically Similar Transduction Mechanisms for Touch and Hearing in <i>Drosophila</i> (2000)

To test the effects of mechanosensory mutations on hearing in Drosophila, we have recorded sound-evoked potentials originating from ciliated sensory neurons in Johnston's organ, the chordotonal organ that is the sensory element of the fly's antennal ear. Electrodes inserted close to the antennal nerve were used to record extracellular compound potentials evoked by near-field sound stimuli. Sound-evoked potentials are absent in atonal mutant flies, which lack Johnston's organ. Mutations in many genes involved in mechanotransduction by tactile bristles also eliminate or reduce the Johnston's organ response, indicating that related transduction mechanisms operate in each type of mechanosensory organ. In addition, the sound-evoked response is affected by two mutations that do not affect bristle mechanotransduction, beethoven (btv) and touch-insensitive-larvaB (tilB). btv shows defects in the ciliary dilation, an elaboration of the axoneme that is characteristic of chordotonal cilia. tilB, which also causes male sterility, shows structural defects in sperm flagellar axonemes. This suggests that in addition to the shared transduction mechanism, axonemal integrity and possibly ciliary motility are required for signal amplification or transduction by chordotonal sensory neurons.
Imputation Using Machine Learning Techniques (2020)

In today's environment to find the missing value in the data set has become the biggest challenge for the industry people, scientists, academicians and for the researchers. With the incomplete dataset we are not able to apply algorithm to find the result. If the dataset is not complete then only we can apply algorithms and then result can be analyzed to get the efficient output. In this paper we have analyzed some of the missing value generation techniques and algorithms and also the result is compared with among techniques and algorithms which gives the best solution for imputing the data in a incomplete dataset. We have considered some of the missing value handling techniques such as deletion, imputation, EM algorithm, KNN algorithm and Random Forest. Also applied on the incomplete dataset MRI of the brain available in the Research Center of Alzheimer's disease in Washington University.
A novel symbol-interleaved Serially Concatenated Overlapped Multiplexing system (2009)

Serially Concatenated Overlapped Code Division Multiplexing (SC-OVCDM) system was presented. In this system, for input of OVCDM can be arbitrary modulated symbol, Trellis-coded modulation (TCM) code is firstly employed as outer code, OVCDM code with short constraint length is inner code, a symbol interleaver serially concatenates them. We employ serially nonbinary iterative decoding in the receiver. Symbol-wise Extrinsic Information Transfer chart (EXIT) is used to analyze convergence property of SC-OVCDM system, based on EXIT we propose a search algorithm to look for optimal inner code. Performance of obtained SC-OVCDM system on the AWGN channel is simulated, and compared to three systems with same spectral efficiency including turbo code in Long Term Evolution. Simulation results show proposed search algorithm can accurately estimation cliff threshold of SC-OVCDM. At bit error rate level of 10 <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">−5</sup> , SC-OVCDM system with short frame length can obtain 0.3 dB, 2.5 dB and 6dB coding gain respectively.
Transmission electron microscopy studies on the lateral growth of nickel silicides (1985)

Transmission electron microscopy (TEM) has been utilized to study the nickel-silicide growth in self-supported lateral-diffusion, thin-film couples by overlapping deposited layers of Ni and Si between two silicon oxide deposited films. Energy-dispersive x-ray spectroscopy, microdiffraction, and selected area diffraction were used to identify the Ni-silicide phases and their crystal structures. Long-grain growth of Ni2Si, as a result of phase-boundary migration induced by diffusion, was observed during in situ annealing between 500 and 750 °C in TEM. No preferred orientation or particular crystallographic relationship was found among the long grains.
Numerical and experimental modelling of microwave applicators (1995)

This thesis presents a time domain finite element method for the solution of microwave heating problems. This is the first time that this particular technique has been applied to microwave heating. It is found that the standard frequency domain finite element method is unsuitable for analysing multimode applicators containing food-like materials due to a severe ill-conditioning of the matrix equations. The field distribution in multimode applicators loaded with low loss materials is found to be very sensitive to small frequency changes. Several solutions at different frequencies are therefore required to characterise the behaviour of the loaded applicator. The time domain finite element method is capable of producing multiple solutions at different frequencies when used with Gaussian pulse excitation; it is therefore ideally suited to the analysis of multimode applicators. A brief survey of the methods available for the solution of the linear equations is provided. The performance of these techniques with both the frequency domain and time domain finite element methods is then studied. Single mode applicators are also analysed and it is found that the frequency domain method is superior in these cases. Comparisons are given between the calculated results and experimental data for both single mode and multimode systems. The importance of experimental verification being stressed. The choice of element type is an important consideration for the finite element method. Three basic types of element are considered; nodal, Whitney edge elements and linear edge elements. Comparisons of the errors with these elements show that Whitney elements produce a consistently lower error when post-processing is used to smooth the solution. The coupled thermal-electromagnetic problem is investigated with many difficulties being identified for the application to multimode cavity problems.
The Thermal Diffusivity of Mg-Al-Sr and Mg-Al-Ca-Sr Sand Casting Magnesium Alloys (2012)

In the present study, the thermal diffusivity of four sand casting magnesium alloys: Mg-9Al-1Zn, Mg-6Al-2Sr, Mg-9Al-1.5Ca-0.3Sr and Mg-9Al-2.2Ca-0.8Sr were studied. Sand casting was performed at 730-780°C temperatures. Thermal diffusivity was measured by a LFA 427 Netzsch apparatus. The thermal diffusivity of the investigated alloys was chemical composition and temperature dependent and increased with increasing temperature. The thermal diffusivity of Mg-Al-Ca-Sr alloys was higher than that of Mg-Al alloy, because the total volume fraction of intermetallic phases in alloys containing calcium and strontium is larger than that in Mg-Al alloy. The formation of intermetallic phases caused the consumption of the solute element in the α-Mg matrix, and improved the thermal diffusivity of the Mg-Al-Ca-Sr magnesium alloy.