gebhart/patrepeval huggingface dataset:
Thermistor Micromethod for Molecular Weight (1961)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThermistor Micromethod for Molecular WeightAbraham. Wilson, Louis. Bini, and Robert. HofstaderCite this: Anal. Chem. 1961, 33, 1, 135–137Publication Date (Print):January 1, 1961Publication History Published online1 May 2002Published inissue 1 January 1961https://pubs.acs.org/doi/10.1021/ac60169a043https://doi.org/10.1021/ac60169a043research-articleACS PublicationsRequest reuse permissionsArticle Views32Altmetric-Citations24LEARN 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
What is Dry Eye and What Does It Mean to the Contact Lens Wearer? (2003)

The tear film is critical to successful contact lens wear. Disturbances of the quantity or quality of the tear film, whether because of aqueous deficiency or evaporative tear problems, results in intolerance of contact lens wear and damage to the ocular surface.
Mew diode string design with very low leakage current for using in power supply ESD clamp circuits (2002)

A new diode string design with very low leakage current is proposed for using in the on-chip power supply ESD (electrostatic discharge) clamp circuits. Three traditional designs of the stacked diode strings used in the power supply ESD clamp circuits are also fabricated in the same test chip to verify the improvement of this new design. By adding an NMOS-controlled lateral SCR (NCLSCR) device into the stacked diode string, the leakage current of this new proposed diode string with 6 stacked diodes under a 5 V (3.3 V) forward bias condition can be controlled below 2.1 (1.07) nA at an environment temperature of 125/spl deg/C. The blocking voltage of this new diode string design with NCLSCR can be linearly adjusted by simply changing the number of the stacked diodes in the diode string for application across the power lines with different voltage levels to achieve a whole-chip ESD protection scheme.
Dispositif pneumatique rapide d'irradiation aux neutrons de 14 MeV (1966)

Un dispositif pneumatique rapide d'irradiation aux neutrons de 14 MeV est décrit, comportant une éjection automatique de l'échantillon irradié. Le temps de transit entre la fin d'irradiation et le début des comptages est de 1,5 seconde. L'échantillon peut avoir une forme quelconque.
Perfusion CT for the assessment of tumour vascularity: which protocol? (2003)

Perfusion CT is a technique that can be readily incorporated into the existing CT protocols that continue to provide the mainstay for anatomical imaging in oncology to provide an in vivo marker of tumour angiogenesis. By capturing physiological information reflecting the tumour vasculature, perfusion CT can be useful for diagnosis, risk-stratification and therapeutic monitoring. However, a wide range of perfusion CT techniques have evolved and the various commercial implementations advocate different acquisition protocols and processing methods. Acquisition choices include first pass studies or delayed imaging, temporal resolution versus image noise, and single location sequences or multiple spiral acquisitions. Data processing may be semi-quantitative or, using either compartmental analysis or deconvolution, produce results that are quantified in absolute physiological terms such as perfusion, blood volume and permeability. This article discusses the advantages and disadvantages of the more common CT perfusion protocols and offers proposals that could allow for easier comparison between studies employing different techniques.
Destination Anywhere: Experiences of Place in the Work of Ed Ruscha and Andreas Gursky (2010)

This paper examines how the meaning of place and identification with place can be produced through photographic images of the city. As an aesthetic, social and cultural practice, photography provides a way of imagining place and a means of knowing and classifying the urban spaces. Photographic images of the city can be understood as a form of aesthetic knowledge production, which represents and enacts the experiences of the urban environment. The urban spaces imaged by artists Ed Ruscha and Andreas Gursky, in the 1960s and 1990s respectively, actively represent and perform the symbolic and material properties of urban spaces. By exploring the ways that these artists read and map city spaces and how they articulate an experience of the city that engages with the identification of place, an argument is presented about how this process and imaging can be situated in relation to anthropological and geographic concepts of place. More specifically, what this paper explores is how their work demonstrates a sense of place that is complex and mobile, which can oscillate between notions of site specificity, identification and non-place as defined by Marc Auge.
Innovations in conservative endometriosis treatment: an updated review. (2011)

Endometriosis is a common, benign and chronic gynecological disorder. It is also an estrogen-dependent disorder that can result in intractable dysmenorrhea, heavy and/or irregular periods, painful bowel movements and urination during menstruation and infertility and ultimatively in repeated surgeries. Although surgery to remove endometriotic lesions is effective in relieving endometriosis-associated pain, recurrence rates are high and many women require continuous medical therapy to control symptoms. Symptom relief with palliation of pain and optimization of the quality of life should be the main aim of the medical therapy. Different pharmacologic treatment options are currently available. The most widely exerted medical therapy for endometriosis involves gonadotropin-releasing hormone (GnRH) agonists and oral contraceptives. Also progestogens and androgen derivates are used. New treatment options that are currently under investigation are selective progestogen receptor modulators (SPRMs), aromatase inhibitors (AI), GnRH- antagonists, cyclooxygenase (COX)-2 inhibitors, angiogenesis disruptor's und immune modulators. Although these new agents are promising, further confirmation in randomized clinical trials is required.
A self-adjusted precise liquid handling system (2009)

In biomedical areas, such as protein crystallization, drug discovery and medical diagnostics, thousands of reagents with different viscosities need to be transferred or dispensed in submicroliter range. Most of the commercial automated liquid dispensing systems need to be calibrated through experiment to accurately dispense liquids when the reagents viscosities change, which is time consuming and less accurate. In this paper, an intelligent precise liquid handling system was developed, in which a high speed MEMS flow sensor was used. Benefiting from the feedback of sensor information, the system can self-adjust the open time of the solenoid vale to accurately dispensing desired reagent volume without pre-calibration. Firstly, the system construction was introduced in detail. Secondly, a novel closed-loop control strategy was proposed to calculate valve open-time for each dispensing cycle, which makes the system immune to liquid viscosity, pressure fluctuation and some other disturbances. Finally, experiments results are presented with different dispensing volumes, coefficient of variance (CV) has been shown to be below 3% at 1ldquol and approach 4% at 100 nl.
Xenoestrogens at Picomolar to Nanomolar Concentrations Trigger Membrane Estrogen Receptor-α–Mediated Ca <sup>2+</sup> Fluxes and Prolactin Release in GH3/B6 Pituitary Tumor Cells (2005)

Xenoestrogens (XEs) are widespread in our environment and are known to have deleterious effects in animal (and perhaps human) populations. Acting as inappropriate estrogens, XEs are thought to interfere with endogenous estrogens such as estradiol (E2) to disrupt normal estrogenic signaling. We investigated the effects of E2 versus several XEs representing organochlorine pesticides (dieldrin, endosulfan, o',p'-dichlorodiphenylethylene), plastics manufacturing by-products/detergents (nonylphenol, bisphenol A), a phytoestrogen (coumestrol), and a synthetic estrogen (diethylstilbestrol) on the pituitary tumor cell subline GH3/B6/F10, previously selected for expression of high levels of membrane estrogen receptor-alpha. Picomolar to nanomolar concentrations of both E2 and XEs caused intracellular Ca2+ changes within 30 sec of administration. Each XE produced a unique temporal pattern of Ca2+ elevation. Removing Ca2+ from the extracellular solution abolished both spontaneous and XE-induced intracellular Ca2+ changes, as did 10 microM nifedipine. This suggests that XEs mediate their actions via voltage-dependent L-type Ca2+ channels in the plasma membrane. None of the Ca2+ fluxes came from intracellular Ca2+ stores. E2 and each XE also caused unique time- and concentration-dependent patterns of prolactin (PRL) secretion that were largely complete within 3 min of administration. PRL secretion was also blocked by nifedipine, demonstrating a correlation between Ca2+ influx and PRL secretion. These data indicate that at very low concentrations, XEs mediate membrane-initiated intracellular CCa2+ increases resulting in PRL secretion via a mechanism similar to that for E2, but with distinct patterns and potencies that could explain their abilities to disrupt endocrine functions.
PRACTICAL CREATION AND DETECTION OF POLARIZATION BELL STATES USING PARAMETRIC DOWN-CONVERSION (2003)

The generation and detection of maximally-entangled two-particle states, `Bell states,' are crucial tasks in many quantum information protocols such as cryptography and teleportation. Unfortunately, they require strong inter-particle interactions lacking in optics. For this reason, it has not previously been possible to perform complete Bell state determination in optical systems. In this work, we show how a recently developed quantum interference technique for enhancing optical nonlinearities can make efficient Bell-state measurement possible. We also discuss weaknesses of the scheme including why it cannot be used for unconditional quantum teleportation.
The Limnology of Three Limestone Rock Quarries in East-Central Nebraska and Western Iowa (1994)

Rock-quarry lakes provide a unique environment. The aim of this study was to obtain baseline limnological data on quarries, one in Iowa and two in Nebraska, which have not been previously investigated. The results show the general limnological trends of the quarries' productivity. The mean oxygen, nutrient, pH, and phytoplankton-biomass values indicate the quarries are oligotrophic; however, one quarry has a profound depletion of oxygen in the summer and a large seasonal variation in alkalinity. A higher nitrogen concentration as well as more littoral plants suggests it to have more eutrophic potential than the other two quarries. Metal-ion analysis shows that the Ashland quarry had high levels of aluminum, and the North quarry had a moderate level of lead. The Logan quarry showed great concentrations of many elements, including lithium and uranium, which could account for its high specific conductivity. Further investigations should be carried out to provide a more detailed picture of these quarries.
Volatile Anesthetics Rapidly Increase Dendritic Spine Density in the Rat Medial Prefrontal Cortex during Synaptogenesis (2010)

These new results suggest that volatile anesthetics, with different potencies and without inducing cell death, could rapidly interfere with physiologic patterns of synaptogenesis and thus might impair appropriate circuit assembly in the developing cerebral cortex.
Circadian Variation of Ethanol Metabolism in Alcoholics* (1974)

Summary The rate of ethanol metabolism was determined for 20 alcoholics during afternoon and evening drinking sessions on two consecutive days. Alcoholics demonstrated a faster rate of ethanol metabolism in the evening as compared to the afternoon, suggesting a circadian variation in the rate of ethanol metabolism. Previous drinking on the first day appeared to increase the rate of ethanol metabolism on the second drinking day. This circadian variation of ethanol metabolism, which was present following two weeks of abstinence and one day of heavy drinking, is different from that reported for non‐alcoholics. This suggests that other circadian rhythms may be affected in alcoholics, even after they have been dried out for several weeks. Altered circadian rhythms may partially explain the alcoholics' difficulty in re‐adjusting to social demands.
A de-noising method based on L0 gradient minimization and guided filter for ancient Chinese calligraphy works on steles (2019)

A clear stele image of ancient Chinese calligraphy pieces is very useful for studying ancient Chinese calligraphy. However, due to hundreds of or even thousands of years of natural or artificial damage on stele, images of ancient Chinese stele calligraphy works usually suffer from a large amount of image noise, and which usually leads to a poor visibility. To address this problem, in this paper, we propose a de-noising method based on L0 gradient minimization and guided filter. It consists of two main operations in sequence: First, L0 gradient minimization is utilized to obtain a random-noise free map, and then the random-noise free map is used as a guided image, and convoluted with its corresponding original noised stele image by a guided filter to obtain an edge preserved random-noise free image. Finally, the eight-connection region-based de-noising technique is followed to remove ant-like isolated blocks. Experiments demonstrate that the proposed method is superior to several recent published stele image de-noising techniques in terms of preserving the character structures.
Synthesis of Polyaniline-Fe3O4 Nanocomposites and Their Conductivity and Magnetic Properties (2010)

由把不同内容的无机的 Fe3O4 nanoparticles 用作成核地点， PAn-Fe3O4 nanorods 成功地在原处通过一出简单、常规、便宜的一步舞被综合聚合方法。TEM 图象揭示了结果的 nanocomposite 的尺寸和形态学。版本模式证实了 Fe3O4 的存在在合成。英尺红外光谱分析证实平底锅的形成包含了 Fe3O4 nanocomposite。与 Fe3O4 增加的内容，同时， nanocomposites 的传导性逐渐地减少浸透磁化增加并且揭示超级顺磁的行为。与可控制的电、磁性、电磁的性质，准备得好的 nanocomposites 可以在化学传感器，催化作用，吸收的微波，和 electro-magneto-rheological 液体中有潜在的应用，等等。
Calcium entry in response to maintained depolarization of squid axons (1973)

1. Intracellular aequorin was used to monitor changes in Ca entry in response to maintained depolarization either produced electrically or by exposure to K-rich solutions.2. External K concentrations greater than 50 mM produce a phasic light response. The light rises to a peak in a few sec and then falls in 0.5-5 min to a new steady level that is always greater than the level in the absence of K.3. The phasic light response does not result from depletion of available aequorin at the periphery of the axon, but rather seems to reflect a phasic entry of Ca in response to depolarization.4. Similar phasic responses are produced by prolonged electrical depolarization. These results are consistent with depolarization serving both to activate and also to inactivate Ca entry.5. Following inactivation and after return to normal sea-water, there is an appreciable relative refractory period during which the response both to K-rich sea-water and electrical depolarization is reduced in size. Complete recovery takes 10-15 min.6. The response to 410 mM-KCl is dependent on the previous treatment of the preparation. Pre-treatment with 100 or 200 mM-KCl reduced the response to 410 mM-KCl. The potential for half inactivation was about -25 mV in 112 mM-Ca and -40 mV in 20 mM-Ca.7. The rate of onset of inactivation is potential dependent and is faster for depolarizations to zero potential than for smaller ones.8. The phasic Ca entry produced by K-rich solutions is insensitive to external tetrodotoxin and internal tetraethylammonium ions, but is blocked by external Mn(2+), Co(2+) and Ni(2+) ions and by the drugs D-600 and iproveratril. This suggests that the phasic Ca entry involves the late Ca channel.9. Recovery of the outward K current after a long depolarization is much faster than recovery of the late Ca entry system. This provides further support for the view that the late Ca channel and the K channel are distinct.
Physical and Transmission Characteristics of Customer Loop Plant (1969)

This report covers the principal physical and transmission characteristics of the Bell System customer loop plant. Items covered include a statistical characterization of physical composition, measured and calculated transmission characteristics, and measured noise and crosstalk performance. A survey conducted in 1964 provided the data base for this report and comparisons of data obtained from a similar survey in 1960 illustrate that, in many respects the composition of loop plant changes only slowly with time. Consequently, the 1964 survey results are believed to be representative of today's plant. The types of analyses presented in this paper are of increasing interest to certain Bell System customers because of the increasing number and types of services provided over local telephone facilities.
Autogenous Shrinkage of Concrete with Super-Absorbent Polymer (2009)

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Reconstruction of a Large Chest Wall Defect with a Musculocutaneous Free Flap Using Anterolateral Thigh Musculature (1988)

Reconstruction of a large postmastectomy irradiated chest wall defect was accomplished with a large musculocutaneous free flap of anterolateral thigh musculature and skin. The vascular anatomy of the donor area allows a very substantial flap and skin island to be transferred, leaving a well-tolerated donor defect.
Do Molecular Markers Predict Survival in Non–Small-Cell Lung Cancer? (1998)

Patients with non-small-cell lung cancer (NSCLC) survive for variable lengths of time, even when adjustment is made for pathological stage. Numerous reports suggest that biological markers predict survival in patients undergoing surgery for NSCLC with curative intent, but many of these claims are unconfirmed or conflicting. We postulated that the use of multiple putative markers might provide greater power in predicting survival. We studied 101 consecutive patients with NSCLC who underwent exploratory thoracotomy and who were followed for at least 2 yr. We assessed mutations in the p53 tumor suppressor gene (exons 5-8) and the K-ras oncogene (codons 12 and 13) by polymerase chain reaction amplification and single strand conformation polymorphism of the product. We identified 19 K-ras mutations (all adenocarcinomas except for two) and 40 p53 mutations among the 101 cases. We also evaluated p53 protein, bcl-2 protein, c-erbB-1 protein, c-erbB-2 protein, and MIA-15-5 antigen by standard immunocytochemical techniques, and we found that all of these antigens were variably expressed. As expected, we found a strong inverse association between surgical tumor stage and survival. Of the molecular markers studied, only MIA-15-5 antigen expression correlated strongly with survival by univariate analysis (p = 0.001) and it remained a significant predictor by multivariate analysis (p = 0.01). However, in this study, overexpression of MIA-15-5 antigen predicted an improved survival, whereas the original report showed a worse prognosis (N. Engl. J. Med. 1992;327:14). We conclude the multiple cell markers are not clinically useful in predicting survival among patients undergoing surgery for NSCLC. Differences between our results and prior reports may be due to chance, to true population differences, or to other factors.
Experimental performance evaluation of non-line-of-sight ultraviolet communication systems (2007)

Motivated by rapid advances in solar blind ultraviolet (UV) light emitting diodes (LEDs), filters and photomultiplier tubes (PMTs), together with unique UV atmospheric propagation characteristics, a non-line-of-sight (NLOS) UV communication test-bed has been recently built and utilized for extensive experimental evaluation of performance of NLOS UV links in outdoor environments. Towards this end, key link components are first characterized and their limitations are identified. The tradeoffs among communication range, received number of photons, and bit-error-rate are revealed via field measurement results. Wavelength diversity is achieved by utilizing combinations of sources and detectors centered at different wavelengths in the solar blind band. It is demonstrated that signals can be reliably transmitted to their destinations of dozens of meters away through an NLOS channel. Although all reported results in this paper are based on open field experiments, it is found that reflections from surrounding objects such as trees and buildings can enhance the received signal strength, up to an order of magnitude increase in the received number of photons in some cases, thus significantly improving link performance.
Broad domain generality in focal regions of frontal and parietal cortex (2013)

Unlike brain regions that respond selectively to specific kinds of information content, a number of frontal and parietal regions are thought to be domain- and process-general: that is, active during a wide variety of demanding cognitive tasks. However, most previous evidence for this functional generality in humans comes from methods that overestimate activation overlap across tasks. Here we present functional MRI evidence from single-subject analyses for broad functional generality of a specific set of brain regions: the same sets of voxels are engaged across tasks ranging from arithmetic to storing information in working memory, to inhibiting irrelevant information. These regions have a specific topography, often lying directly adjacent to domain-specific regions. Thus, in addition to domain-specific brain regions tailored to solve particular problems of longstanding importance to our species, the human brain also contains a set of functionally general regions that plausibly endow us with the cognitive flexibility necessary to solve novel problems.
Growth Hormone in Critical Illness (1995)

Summarizes the explosion of basic science and clinical research conducted on growth hormone during the decade after molecular biology techniques were developed in the middle 1980s capable of producing large scale quantities of recombinant human growth hormone. The ten studies examine deficiency in