gebhart/patrepeval huggingface dataset:
A Two-Dimensional Quantizer for Coding of Digital Imagery (1981)

A spatial domain image coding method which is computationally straightforward and requires only one pass through the incoming data is presented. The technique is based on approximating a near-optimal three-level uniform quantizer over a spatially local region of the image. This method can maintain single pixel resolution and is therefore applicable to wide bandwidth data. Results of applying this procedure to a variety of images are given, along with comparisons to some other image coding techniques. A variablelength code word version providing increased compression is also developed.
Frequent itemset mining to generate initial solutions for simulation-based optimization of warehouse product placement (2010)

Warehouses are obliged to optimize their operations with regard to multiple objectives, such as maximizing effective use space, equipment, labor, maximize accessibility of products, maximize amount of processed orders and all this should be achieved whilst minimizing order processing times, distance traveled, broken promises, errors and not to forget the operational cost. A product placement problem for a warehouse is in focus of this study and the main goal is to decrease the picking time for each pick run in order to gain higher efficiency. To achieve this, a simulation model is built as a representation of the warehouse. As the complexity and the size of the number of input variable grow it is essential to use simulation-based optimization in order to receive a satisfying result. A set of initial solutions for the simulation-based optimization is needed; since the number of products to place in the warehouse is huge this solution ought to be intelligent. This paper describes a technique for generating such a set of solutions through searching for frequent itemsets in the transaction database. It is believed that frequent products usually picked simultaneously should be stored closed together.
Gateway Placement in Hybrid MANET-Satellite Networks (2012)

Mobile ad hoc networks (MANETs) are self-organized and dynamically reconfigurable wireless networks. It is a promising technology for emergency scenarios where communication systems should be able to operate in potentially adverse environments. However, MANETs experience severe impairments because of node motion or scarce node density yielding network partitioning. Satellite communications may help in this respect by setting up recovery links. In this article, we study the problem of selecting for each network partition a MANET node called gateway that will provide access to the satellite capacity. A key challenge is that nodes are mobile resulting in frequent topology changes. We address this challenge by re-using the mechanisms of clustering techniques initially designed to solve scalability issues in MANETs.
[Dysphagia and aspiration]. (2005)

吞咽困难(dysphagia)为饮食摄入和转运到胃部出现障碍.与耳鼻咽喉科密切相关的是食管前性的吞咽障碍.误咽或误吸(aspiration)是指饮水、唾液等进入声带以下气道.这两组疾病并非独立的疾病实体,而是许多结构性或神经性疾病的临床表现.人口老化、颅颈外伤和脑血管疾病增多、颅内和颅底手术广泛开展等因素,致使有吞咽障碍和误吸症状的患者就诊于耳鼻咽喉科增加.但许多医师对此往往知之较少[1].原因是疾病涉及范围广泛,包括耳鼻咽喉头颈、神经、消化、口腔、肿瘤、放射、内镜、放疗、康复、护理等诸多科室,但又非学科的主要领域,因此较少关注.其次,吞咽障碍是较新的研究领域,至1986年,学术刊物 才问世.有关临床诊疗手段尚待探索和逐步完善.
Iron-Responsive Elements: Regulatory RNA Sequences That Control mRNA Levels and Translation (1988)

The biosynthetic rates for both the transferrin receptor (TfR) and ferritin are regulated by iron. An iron-responsive element (IRE) in the 5' untranslated portion of the ferritin messenger RNA (mRNA) mediates iron-dependent control of its translation. In this report the 3' untranslated region of the mRNA for the human TfR was shown to be necessary and sufficient for iron-dependent control of mRNA levels. Deletion studies identified a 678-nucleotide fragment of the TfR complementary DNA that is critical for this iron regulation. Five potential stem-loops that resemble the ferritin IRE are contained within the region critical for TfR regulation. Each of two of the five TfR elements was independently inserted into the 5' untranslated region of an indicator gene transcript. In this location they conferred iron regulation of translation. Thus, an mRNA element has been implicated in the mediation of distinct regulatory phenomena dependent on the context of the element within the transcript.
Supramolecular Hydrogelators and Hydrogels: From Soft Matter to Molecular Biomaterials (2015)

In this review we intend to provide a relatively comprehensive summary of the work of supramolecular hydrogelators after 2004 and to put emphasis particularly on the applications of supramolecular hydrogels/hydrogelators as molecular biomaterials. After a brief introduction of methods for generating supramolecular hydrogels, we discuss supramolecular hydrogelators on the basis of their categories, such as small organic molecules, coordination complexes, peptides, nucleobases, and saccharides. Following molecular design, we focus on various potential applications of supramolecular hydrogels as molecular biomaterials, classified by their applications in cell cultures, tissue engineering, cell behavior, imaging, and unique applications of hydrogelators. Particularly, we discuss the applications of supramolecular hydrogelators after they form supramolecular assemblies but prior to reaching the critical gelation concentration because this subject is less explored but may hold equally great promise for helping address fundamental questions about the mechanisms or the consequences of the self-assembly of molecules, including low molecular weight ones. Finally, we provide a perspective on supramolecular hydrogelators. We hope that this review will serve as an updated introduction and reference for researchers who are interested in exploring supramolecular hydrogelators as molecular biomaterials for addressing the societal needs at various frontiers.
Stroke After Coronary Artery Bypass (2001)

Stroke after CABG is associated with high short-term morbidity and mortality. Increased stroke risk can be predicted by preoperative and postoperative clinical factors.
열처리된 재료의 초음파 비선형성에 관한 연구 (2010)

비선형 초음파는 선형 초음파와 비교하였을 때 재료의 물성 변화에 민감하게 반응한다. 이 연구의 목표는 비선형 요소를 포함하여 열처리 조건과 초음파 비선형성의 상관관계를 알아내는 것이다. 본 연구에서 기존의 방법과는 다른 수정된 초음파속도계산 식이 새롭게 제안되었다. 이것은 열처리된 재질에서 초음파 속도변화가 재료의 비선형성 때문에 발생하는 것을 찾아내었다. 실험을 통하여 수정된 초음파 속도와 1차 조화 및 2차 조화파의 진폭 비율이 서로 동일한 경향을 보이는 것을 알아냈다. 그리고 수정된 초음파속도식을 통해 계산된 상대적인 비선형계수는 기존의 방법을 이용하였을 때보다 더 민감함을 알아냈다.
The Sloan Digital Sky Survey data acquisition system, and early results (2003)

The Sloan Digital Sky Survey will systematically map one-quarter of the sky, producing detailed images in five color bands and determining the positions and absolute brightnesses of more than 100 million celestial objects. It will also measure the redshifts of a million selected galaxies and of 100,000 quasars, yielding a three-dimensional map of the Universe through a volume one hundred times larger than that explored to date. The SDSS collaboration is currently in the process of commissioning the 2.5-meter survey telescope. We describe the data acquisition system used to record the survey data. This system consists of twelve single board computers and their associated interfaces to the camera and spectrograph CCD electronics, to tape drives, and to online video displays, distributed among several VME crates. A central UNIX computer connected to the VME crates via a vertical bus adapter coordinates the system and provides the interface to telescope operations. We briefly discuss results from the observing runs to date and plans for the archiving and distribution of data.
Hydrogen Peroxide Mediates Brazilin-induced Glucose Transport in Adipocytes (2004)

Brazilin shows hypoglycemic effect in diabetic animals through enhancement of glucose metabolisms in insulin responsive tissues. One of the major mechanisms of brazilin to enhance glucose metabolism is stimulation of glucose transport in adipocytes. In this study, the essential molecular moiety of brazilin for the stimulation of glucose transport was investigated. We found that brazilin undergoes a structural change in physiological buffer and produces hydrogen peroxide. Methylation of hydroxyl group of brazilin or addition of catalase along with brazilin resulted in the complete inhibition of brazilin-induced glucose transport in adipocytes. Because hydrogen peroxide increases glucose transport by inhibition of phosphatases, we examined the effect of brazilin on phosphatase activity. Brazilin inhibited phosphatases in a wide range of activity, and protein phosphatase 1 and 2A were also inhibited. These results suggest that the production of hydrogen peroxide by oxidation of catechol hydroxyl group of brazilin mediates glucose transport through inhibition of phosphatases which otherwise decrease glucose transport in adipocytes.
Losses in GaAs microstrip (1990)

Newly measured data for the loss of microstrip on 4 mil GaAs from DC to 40 GHz are presented. These data were taken from transmission measurements of lightly coupled, multiple-half-wave-length resonators. A comparison of the loss data with the predicted losses from three popular CAE (computer-aided engineering) tools is provided. The loss models provided by two out of three software vendors agree fairly well with measured data through 40 GHz. Since the measured loss roughly follows a square-law frequency relationship through 20 GHz, it should be possible to adjust the loss below this frequency and above 1 GHz by modifying the resistivity of the conductor in the simulator.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
The Smell of Nature: Olfaction, Knowledge and the Environment (2000)

Abstract Olfaction offers unique entry into the non-human world, but Western culture constrains such opportunities because of the dominance of the visual mode of perception. We begin by briefly reviewing philosophical arguments against olfaction as a reliable cognitive input. We then build a biological case for the similarity of non-human and human olfaction. Subsequently, we argue that some contemporary societies still make use of olfaction for organizing themselves in space and time. We end by suggesting that olfaction offers promise for advancing inquiry into the human-nature relationship that is so important to many environmental philosophers, scientists and activists.
Matching twigs in probabilistic XML (2007)

Evaluation of twig queries over probabilistic XML is investigated. Projection is allowed and, in particular, a query may be Boolean. It is shown that for a well-known model of probabilistic XML, the evaluation of twigs with projection is tractable under data complexity (whereas in other probabilistic data models, projection is intractable). Under queryand-data complexity, the problem becomes intractable even without projection (and for rather simple twigs and data). In earlier work on probabilistic XML, answers are always complete. However, there is often a need to produce partial answers because XML data may have missing sub-elements and, furthermore, complete answers may be deemed irrelevant if their probabilities are too low. It is shown how to define a semantics that provides partial answers that are maximal with respect to a probability threshold, which is specified by the user. For this semantics, it is shown how to efficiently evaluate twigs, even under query-and-data complexity if there is no projection.
Solution characterization of "intermediate-spin" iron(III) porphyrins by NMR spectroscopy (1980)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSolution characterization of "intermediate-spin" iron(III) porphyrins by NMR spectroscopyHarold Goff and Eric ShimomuraCite this: J. Am. Chem. Soc. 1980, 102, 1, 31–37Publication Date (Print):January 1, 1980Publication History Published online1 May 2002Published inissue 1 January 1980https://pubs.acs.org/doi/10.1021/ja00521a007https://doi.org/10.1021/ja00521a007research-articleACS PublicationsRequest reuse permissionsArticle Views365Altmetric-Citations59LEARN 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
STUDIES OF COPROPHILOUS ASCOMYCETES VII. PREUSSIA (1961)

The Plectascales and Perisporiales are both artificial taxa each consisting of a miscellaneous assemblage of unrelated genera. The generic name Perisporium is not valid for species of Ascomycota (Ascomycetes). The valid name for those species which produce ascocarps is Preussia Fuckel. The ascocarps are non-ostiolate (cleistothecia) and their development is the same as that in the Loculo-ascomycetes (producing a pseudothecium). The ascocarp of Preussia is thus a cleistothecial pseudothecium. The genus most closely related to Preussia is Sporormia and the two may be included in the same family Sporormiaceae. Preussia is not included in the Phaeotrichaceae on account of the elongated germinal slit and lack of hairs on the peridium of the ascocarp. Twelve species are included with descriptions and illustrations. The type species of Preussia is P. funiculata Fuckel. Three species are transferred to this genus from Perisporium. These are P. punctata (Auersw.) Sacc., P. typharum Sacc, and P. vulgare Corda. One species is transferred from each of the following genera: Sporormia (Sp. fleischhakii Auersw.), Muellerella (M. nigra Routien), Pycnidiophora (P. dispersa Clum), Anixiopsis (A. multispora Saito and Minoura), and Thielavia (T. indica Chattop. and Das Gupta). The following three species are described as new: P. isomera, P. terricola, and P. purpurea.
High-dose cytosine arabinoside therapy with and without anthracycline antibiotics for remission reinduction of acute nonlymphoblastic leukemia. (1985)

Seventy-eight patients with acute nonlymphoblastic leukemia in relapse were treated with high-dose cytosine arabinoside (3 g/m2 intravenously (IV) every 12 hours for 12 doses) alone, or with three days of anthracycline antibiotics (doxorubicin 20 mg/m2 or daunorubicin 30 mg/m2 IV daily) after completing the course of cytosine arabinoside. Consolidation and maintenance therapy was not given. When anthracyclines were added there was no increase in frequency or severity of nonhematologic toxicity including conjunctivitis, photophobia, dermatitis, cerebellar dysfunction, and gastrointestinal disturbance. All 78 patients achieved aplasia of the bone marrow. Five patients in each group died before bone marrow recovery. The use of anthracyclines did not prolong bone marrow recovery, with both groups demonstrating adequate granulocyte and platelet counts about four weeks after beginning treatment. Forty-one (53%) of the total 78 patients achieved a complete remission. In patients not clinically resistant to conventional-dose cytosine arabinoside, both regimens were equally effective inducing a complete remission (high-dose cytosine arabinoside alone, 12/19 [63%]; with anthracycline, 11/17 [65%], P = .270); in patients clinically resistant, the regimen including anthracycline was superior (15/27 [56%] v 3/15 [20%], P = .022). The duration of unmaintained response was similar (median, five months), but the longest remissions occurred when anthracyclines were used. Thus, high-dose cytosine arabinoside is effective in producing remissions in relapsed patients with acute nonlymphoblastic leukemia, and the addition of an anthracycline enhances this effect.
Management of Symmetric Cryptographic Keys in cloud based environment (2013)

Abstract — Cloud computing provides innumerable benefits to its customers but failing to solve information security concerns especially in public cloud. Symmetric Cryptographic Key is sensitive data and it is required to be stored at cloud platform to solve several problems of encrypted data such as searching/manipulation on encrypted data. This paper presents a technique that will manage symmetric cryptographic keys on cloud-based environment. Proposed technique is based on secret splitting technique enhanced Shamir’s algorithm. Proposed technique is implemented in OpenStack private cloud environment for performance analysis and it is found out that the technique works efficiently. Furthermore, it is fulfilling the best practices metrics, given by National Institute of Standard and Technology.
Genome-wide analysis of the FleQ direct regulon in Pseudomonas fluorescens F113 and Pseudomonas putida KT2440 (2018)

Bacterial motility plays a crucial role in competitiveness and colonization in the rhizosphere. In this work, Chromatin ImmunoPrecipitation Sequencing (ChIP-seq) analysis has been used to identify genes putatively regulated by the transcriptional regulatory protein FleQ in Pseudomonas fluorescens F113 and Pseudomonas putida KT2440. This protein was previously identified as a master regulator of flagella and biofilm formation in both strains. This work has demonstrated that FleQ from both bacteria are conserved and functionally equivalent for motility regulation. Furthermore, the ChIP-seq analysis has shown that FleQ is a global regulator with the identification of 121 and 103 FleQ putative binding sites in P. fluorescens F113 and P. putida KT2440 respectively. Putative genes regulated by FleQ included, as expected, flagellar and motility-related genes and others involved in adhesion and exopolysaccharide production. Surprisingly, the ChIP-seq analysis also identified iron homeostasis-related genes for which positive regulation was shown by RT-qPCR. The results also showed that FleQ from P. fluorescens F113 shares an important part of its direct regulon with AmrZ, a global regulator also implicated in environmental adaption. Although AmrZ also regulates motility and iron uptake, the overlap occurred mostly with the iron-related genes, since both regulators control a different set of motility-related genes.
Noise properties of CMOS current conveyors (2002)

The definition of the current conveyor is presented and it is shown how different generations of current conveyors can all be combined into a single definition of a multiple-output second generation current conveyor (CCII). Next, noise sources are introduced into the model, and a general noise model for the current conveyor is established. This model is used for the analysis of selected examples of current conveyor based operational amplifier configurations and the relative merits with respect to the noise performance of these configurations are discussed. Finally, the noise model is developed for a CMOS current conveyor implementation, and optimization strategies for noise reduction are discussed. It is concluded that a class AB implementation provides more flexibility than does a class A configuration. In both cases it is essential to design low noise current mirrors and current sources, and with the class AB design the current mirror and current source noise can be reduced by using small values of bias current without compromising the maximum available output current.
A vertical SiC JFET with a monolithically integrated JBS diode (2009)

It is desirable for many power applications to integrate a power switch and its reverse-parallel diode onto the same chip/package to reduce component count and improve circuit reliability and integrity. In this paper, a SiC vertical JFET with a monolithically integrated JBS diode is proposed, fabricated and characterized. The integrated switch uses a process similar to that of a traditional SiC vertical JFET. The experimental results show that, in the reverse direction, the integrated switch, can conduct current by utilizing both the integrated diode and the JFET channel. This can be utilized to significantly reduce the device conduction loss in power electronic applications.
GPS disciplined rubidium oscillator (1996)

The proposed product uses a rubidium oscillator as its main frequency standard. A rubidium oscillator has very good short and medium term stability. The maximum drift rate is expected to be less than 4 parts in 10/sup 11/ per month. There may be a frequency offset of up to 1 part in 10/sup 10/ after initial calibration. By comparing the phase difference between the GPS 10 MHz output, and the 10 MHz output from the rubidium oscillator, it is possible to correct the initial frequency offset and remove the drift. By using sufficiently long time constants in the control loop, it is possible to remove the effects of SA (selective availability) completely, and frequency accuracies equivalent to GPS time, which is itself locked to UTC within /spl plusmn/100 ns, may be obtained. It is vital that the system is tolerant of GPS signal failures. The rubidium is sufficiently stable to free run for hours or days provided that the control voltage is held at the point where the GPS control was interrupted. This report will consider the design of the hardware down to block diagram level. The control algorithm will be considered in detail and performance analysis of the selected method will be carried out on simulated data.
<title>Active Optics With Room Temperature Vulcanizing Silicone Rubber</title> (1977)

A novel method of constructing variable focal length lens employing clear two component room temperature vulcanizing (RTV) silicone rubber is presented. Deformation of the lens is achieved by symmetrically applying pressure through a fluid to a slab of RTV-rubber in such a manner as to change the shape with minimum optical distortion. The theory of deformation of a flexible slab is presented and the optical manifestations predicted. Two different configurations of the variable focal length lens were constructed and experiments performed to measure refraction as well as surface properties. It is found that to first order the theory and experiment agree well. With this theoretical tool expanded to higher orders, new and interesting optical designs should be possible using RTV-rubber lens.
Synergistic effect of gemcitabine and irinotecan (CPT-11) on breast and small cell lung cancer cell lines. (2000)

Gemcitabine (2'-2'-difluorodeoxycytidine, dFdC), an analog of deoxycytidine, is an antineoplastic agent with clinical activity against several types of cancer. Irinotecan (CPT-11), a topoisomerase I inhibitor, is a drug with a broad spectrum of anticancer activity. Since these drugs have different mechanisms of cytotoxicity and dose-limiting toxicity profiles, preclinical combination studies were performed on the MCF-7 breast cancer and the SCOG small cell lung cancer (SCLC) cell lines. Both gemcitabine and CPT-11 as single agents were effective growth inhibitors in these cell lines. Isobologram analysis revealed for the first time that the combination of these drugs exerted synergy over a wide range of concentrations in MCF-7 and SCOG cells. Moreover, combination index (CI) analysis revealed that at low concentrations, combinations of gemcitabine and CPT-11 show a synergistic growth inhibitory effect on MCF-7 cells. However, in SCOG cells CI analysis showed synergy at concentrations of gemcitabine and CPT-11 greater than 1 microM but antagonism at combination concentrations less than 1 microM. These preclinical cytotoxicity data provide an experimental basis for conducting clinical trials using combinations of gemcitabine and CPT-11, especially in patients with breast and lung cancers.