gebhart/patrepeval huggingface dataset:
Use of 3D DCE-MRI for the Estimation of Renal Perfusion and Glomerular Filtration Rate: An Intrasubject Comparison of FLASH and KWIC With a Comprehensive Framework for Evaluation (2015)

OBJECTIVE. The purpose of this article is to compare two 3D dynamic contrast-enhanced (DCE) MRI measurement techniques for MR renography, a radial k-space weighted image contrast (KWIC) sequence and a cartesian FLASH sequence, in terms of intrasubject differences in estimates of renal functional parameters and image quality characteristics. SUBJECTS AND METHODS. Ten healthy volunteers underwent repeated breath-hold KWIC and FLASH sequence examinations with temporal resolutions of 2.5 and 2.8 seconds, respectively. A two-compartment model was used to estimate MRI-derived perfusion parameters and glomerular filtration rate (GFR). The latter was compared with the iohexol GFR and the estimated GFR. Image quality was assessed using a visual grading characteristic analysis of relevant image quality criteria and signal-to-noise ratio calculations. RESULTS. Perfusion estimates from FLASH were closer to literature reference values than were the KWIC sequences. In relation to the iohexol GFR (mean [± SD], 103 ± 11 mL/min/1.73 m(2)), KWIC produced significant underestimations and larger bias in GFR values (mean, 70 ± 30 mL/min/1.73 m(2); bias = -33.2 mL/min/1.73 m(2)) compared with the FLASH GFR (110 ± 29 mL/min/1.73 m(2); bias = 6.4 mL/min/1.73 m(2)). KWIC was statistically significantly (p < 0.005) more impaired by artifacts than was FLASH (AUC = 0.18). The average signal-enhancement ratio (delta ratio) in the cortex was significantly lower for KWIC (delta ratio = 0.99) than for FLASH (delta ratio = 1.40). Other visually graded image quality characteristics and signal-to-noise ratio measurements were not statistically significantly different. CONCLUSION. Using the same postprocessing scheme and pharmacokinetic model, FLASH produced more accurate perfusion and filtration parameters than did KWIC compared with clinical reference methods. Our data suggest an apparent relationship between image quality characteristics and the degree of stability in the numeric model-based renal function estimates.
Thermolysis of tert-butyl cubanepercarboxylate. The cubyl radical (1978)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThermolysis of tert-butyl cubanepercarboxylate. The cubyl radicalTien-Yau Luh and Leon M. StockCite this: J. Org. Chem. 1978, 43, 17, 3271–3273Publication Date (Print):August 1, 1978Publication History Published online1 May 2002Published inissue 1 August 1978https://pubs.acs.org/doi/10.1021/jo00411a004https://doi.org/10.1021/jo00411a004research-articleACS PublicationsRequest reuse permissionsArticle Views135Altmetric-Citations19LEARN 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
Junior College Reading Problems (1972)

Junior or community college reading programs are one of the areas most open for innovation. The two-year college itself is still a relatively new concept and reading programs designed to fit the still evolving function of these schools offer the reading specialist both freedom and frustrations. To date, I have taught reading courses at a junior college which was affiliated with a university and at a community college with an open door policy. In the first instance, the courses were offered through the continuing education department and dealt largely with marginal admittance students. Presently I am within the English department and the reading courses are credit courses, some of which carry transfer credit to local universities. At this point, there are probably many more questions than answers. In this article, I would like to discuss these questions and perhaps this will lead to an exchange of ideas from other reading specialists w-ho may have solutions. Particularly at this level, it is easy to become isolated from dialogue with other reading personnel. What my questions may serve to do is offer an outline of topics to which you may want to respond.
Some observations on the determination of the activity of rennet (1952)

N. J. Berridge, Analyst, 1952, 77, 57b DOI: 10.1039/AN952770057B
Brave new world (2006)

The BBC commentator and presenter describes a changing culture and recalls a time when "Britain's culture was much more rigidly divided - there was a class divide in culture far wider than today's. Similarly, the political obsessions of newspapers from the 1950s and 60s right through to the early 80s reflected a tormented, divided, angry society, plagued by intense arguments about nuclear weapons, trades unions, inflation, national decay and mass unemployment. Today we have big arguments too, on everything from Iraq to windfarms, but there isn't somehow the bitterness. Our cultural walls have been slowly demolished. I don't simply mean we have dumbed down; indeed what's happened is something far more interesting and positive than that - the arrival of a genuinely common culture." Marr concludes: "Where we stand is on the edge of a democratic culture we haven't had before, at a time when journalism seems to be growing a little stronger again, enjoying comparative freedom of speech and information, and when only the means of delivery is in doubt, because of the speed of technological change. And as we move into deeper, digital times, now is the time to reassert verbal clarity. Journalists again must be the people who champion good writing against the triumph of image."
Layer Structures Localization in Optical Coherence Tomography Images (2006)

The existence of noise and speckle in optical coherence tomography (OCT) images challenges the extraction of layer structures. As an effort to answer the challenges, an improved coherence enhancing diffusion (CED) algorithm for preprocessing OCT images is presented in this paper. The improved algorithm could keep the locality of layer structures in OCT images better, therefore, locality of layer structures could be detected with good accuracy in preprocessed OCT images. The locality of some specific layer structures found in preprocessed images could be used as the benchmark to optimize OCT images, the application in OCT images of retina is such an example. Experiment results show that the above optimization is clinical helpful.
The Viability of the Copyright Misuse Defense (1992)

Under the equitable doctrine of "unclean hands," courts will deny an otherwise meritorious claim where the claimant has acted so improperly that the need to punish the claimant’s wrongful behavior outweighs the need to punish the defendant’s allegedly unlawful conduct. The principle underlying the doctrine is that equity presumes harm when an unclean plaintiff obtains relief; consequently, one who desires justice must come into court with a “clean slate.” The theory of intellectual property misuse, which stems from the “unclean hands” doctrine, prevents a plaintiff from enforcing an intellectual property right if that plaintiff is guilty of misconduct with respect to that right. For years the courts have failed to distinguish misuse from the anti-trust law. These legal concepts are, however, clearly distinguishable from one another. The misuse defense is viable in copyright infringement actins and should prevent a copyright owner from enforcing his copyright if he has impermissibly extended it beyond the scope of the copyright grant. This Note advocates use of the scope of the grant approach to provide a workable standard for determining whether a copyright owner is guilty of copyright misuse.
Ergebnisse der Extensor indicis-Plastik zur Rekonstruktion der Extensor pollicis longus-Sehne (2008)

Rupture of the extensor pollicis longus tendon is a frequent complication after distal radius fractures or other traumatic and non-traumatic events. Typical is the loss of the function of extension in the thumb. The extensor indicis transfer is a simple and effective technique for reconstruction of the extension with a low donor-site morbidity. We report on 38 patients with extensor indicis transfer. Postoperatively the patients received a dynamic motion splint for 4 weeks. For evaluation we have done pre- and postoperative ultrasound scans of the thumb, evaluated the DASH score and carried out a clinical examination.
The state of the articular cartilage at the time of surgery as an indication for rotational acetabular osteotomy (2001)

We have studied whether the state of the articular cartilage at the time of rotational acetabular osteotomy for dysplasia of the hip affects the outcome 2 to 5.5 years after surgery. Arthroscopy in 57 patients (59 joints) at the time of the operation showed grade-0 changes in seven, grade-1 in nine, grade-2 in 17, grade-3 in 14 and grade-4 in 12 joints, according to the classification of Outerbridge. There was radiological evidence of the progression of arthritis in four joints which were classified at arthroscopy as grade 4. Stepwise regression analysis showed that damage to acetabular or femoral articular cartilage significantly affected the progression of arthritis. We conclude that the short-term results of successful rotational acetabular osteotomy for dysplasia are affected by the state of the articular cartilage.
Aspects of MLS Measuring Systems (1994)

A maximum length sequence (MLS) has mathematical properties that make it very useful as an excitation signal for measurement in audio and acoustics. The pathology of MLS systems when there is distortion of various kinds is explored
The Metaphysical Tasks of the Psychodramatist (1999)

The author argues that, in order to assist clients in their spiritual development, practitioners must first develop metaphysical roles that integrate the basic aspects of their own existence. She explains the metaphysical model of humanity as well as Jacob L. Moreno's philosophy, theology, and cosmology. She believes the metaphysical task of the psychodramatist is to help the client to reconcile and/or integrate body, soul, and spirit. She divides the overall metaphysical task of reconciliation into a series of smaller tasks for ease of operation. A case study demonstrates the enactment of three metaphysical role clusters, namely, the bridge, the mentor, and the visionary. The metaphysical tasks and roles of the Director are analyzed with reference to the study.
On the number of degrees of freedom used by an adaptive antenna array in a non-narrowband noise environment (1982)

The relative measures of the eigenvalues of the noise covariance matrix of an adaptive array which is subjected to a non-narrowband jamming source are investigated. These measures are important because they determine the convergence rate and the upper limit of the output signal-to-noise ratio of the adaptive array. It is found tht the adaptive array's performance as measured by the output signal-to-noise ratio degrades in quantum jumps as the input noise bandwidth increases. A methodology is developed whereby given the number of elements of the array, the array spacing, the array element antenna pattern, the power, and direction of arrival of an external jammer, these discrete bandwidths of the jammer that limit the output signal-to-noise ratio can be calculated. (Author)
Microstructure and Biocompatibility of Ti-Nb-Si-HA Composites Fabricated by Rapid Sintering Using HEMM Powders (2013)

To improve coating ability and the life of the coating, Ti based composite materials with hydroxyapatite(HA) should be developed. The raw materials of Ti-26wt%, Nb-1wt%, and Si with 10wt% HA were mixed for 24 h by a mixing machine and milled for 1 h to 6 h by planetary mechanical ball milling. Ti-26%Nb-1%Si-(10%HA) composites, composed of nontoxic elements, were fabricated successfully by spark plasma sintering(SPS) at under 70MPa. The relative density of the sintered Ti-Nb-Si-HA composites using the 24 h mixed powder, and the 6 h milled powder, was 91% and 97 %, respectively. The effects of HA contents and milling time on microstructure and mechanical properties were investigated by SEM and hardness tester, respectively. The Vickers hardness of the composites increased with increasing milling time and higher HA content. The Young`s modulus of the sintered Ti-26%Nb-1%Si-10%HA composite using the 6 h-milled powder was 55.6 GPa, as obtained by compression test. Corrosion resistance of the Ti-26wt%Nb-1wt%Si composite was increased by milling and by the addition of 10wt%HA. Wear resistance was improved with increasing milling time. Biocompatibility of the Ti-Nb-Si alloys was improved by the addition of HA.
Surveying consumer satisfaction to assess managed-care quality: current practices. (1995)

Growing interest in using consumer satisfaction information to enhance quality of care and promote informed consumer choice has accompanied recent expansions in managed care. This article synthesizes information about consumer satisfaction surveys conducted by managed-care plans, government and other agencies, community groups, and purchasers of care. We discuss survey content, methods, and use of consumer survey information. Differences in the use of consumer surveys preclude one instrument or methodology from meeting all needs. The effectiveness of plan-based surveys could be enhanced by increased information on alternative survey instruments and methods and new methodological studies, such as ones developing risk-adjustment methods.
A Clean and General Strategy To Decorate a Titanium Metal–Organic Framework with Noble-Metal Nanoparticles for Versatile Photocatalytic Applications (2015)

We demonstrate a facile and general approach for the fabrication of highly dispersed Au, Pd, and Pt nanoparticles (NPs) on MIL-125(Ti) without using extra reducing and capping agents. Noble-metal NP formation is directed by an in situ redox reaction between the reductive MIL-125(Ti) with Ti(3+) and oxidative metal salt precursors. The resulting composites function as efficient photocatalysts.
Effects of captopril related to increased levels of prostacyclin and angiotensin-(1-7) in essential hypertension (1996)

Inhibition of angiotensin converting enzyme with captopril had a significant effect on blood pressure that was not directly accounted for by a suppression of plasma Ang II levels. Continuous therapy with captopril unmasked a contribution of Ang-(1-7) and prostacyclin to the antihypertensive actions of this drug.
Viruses infecting bivalve molluscs (2004)

Bivalve molluscs are filter feeders and as a consequence they may bioaccumulate in their tissues viruses that infect humans and higher vertebrates. However, there have also been described mortalities of bivalve molluscs associated with viruses belonging to different families. Mass mortalities of adult Portuguese oysters, Crassostrea angulata, among French livestocks (between 1967 and 1973) were associated with irido-like virus infections. Herpesviruses were reported in the eastern oyster, Pacific oyster and European flat oyster and lately in scallops and clams. Disseminated neoplasia, a proliferative cell disorder of the circulatory system of bivalves, although of uncertain aetiology, has been suggested to be caused by retroviral infections. Other viruses described in bivalves are interpreted as members of the Papovaviridae, Togaviridae, Reoviridae, Birnaviridae and Picornaviridae. However, the lack of bivalve cell lines renders difficult virus isolation from molluscs although some viruses can be isolated in fish cell lines.
Finding maximal link disjoint paths in a multigraph (2002)

The problem of fast restoration of lost transport facilities between nodes of the growing high-capacity fiber network has recently emerged as a principle concern of both network operators and their customers. At the same time, there is increasing use of intelligent cross-connects in the telephone network. It should be possible to use the computing and connection capacity of cross-connects to recover from facility outages by enabling the cross-connects to automatically reroute traffic in the event of facility damage or loss. An algorithm by which a network node might be able to establish as many paths as required (up to the theoretical maximum) between itself and another node with which it has lost part or all of its directly connecting transmission facilities is presented. The algorithm has been simulated on a Sun 3/60 workstation and is able to find all four paths of the example network in under one second.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
Cyclooxygenase enzymes and prostaglandins in pathology of the endometrium (2003)

Prostaglandins are bioactive lipids produced from arachidonic acid by cyclooxygenase (COX) enzymes and specific terminal prostanoid synthase enzymes. After biosynthesis, prostaglandins exert an autocrine-paracrine function by coupling to specific prostanoid G protein-coupled receptors to activate intracellular signalling and gene transcription. For many years, prostaglandins have been recognized as key molecules in reproductive biology by regulating ovulation, endometrial physiology and proliferation of endometrial glands and menstruation. More recently, a role for COX enzymes and prostaglandins has been ascertained in reproductive tract pathology, including carcinomas, menorrhagia, dysmenorrhoea and endometriosis. Although the mechanism by which prostaglandins modulate these pathologies is still unclear, a large body of evidence supports a role for COX enzymes, prostaglandins and prostaglandin receptor signalling pathways in angiogenesis, apoptosis and proliferation, tissue invasion and metastases and immunosuppression. Here, an overview is provided of some of the findings from these studies with specific emphasis on the role of COX enzymes, prostaglandin E(2) and F(2alpha) in disorders of endometrial proliferation and menstruation in non-pregnant women.
Board Functions and Firm Performance: A Review and Directions for Future Research (2000)

Research Paper Series (National University of Singapore. Faculty of Business Administration); 1999-036
Marihuana, Alcohol and Public Policy (1972)

"Many who are normally law-abiding are led to an attitude hostile to this statute by a feeling that repression and interference with private conduct are carried too far."That conclusion could well have been included in the recent report of the National Commission on Marihuana and Drug Abuse headed by former Governor Raymond P. Schaffer.1 But actually it was part of another report issued 41 years ago by another commission, this one headed by furmer United States Attorney General George W. Wickersham, to investigate the functioning of the 18th Amendment and the Volstead Act.2 Comparisons are frequently made between . . .
Algebraic constructions of Shannon codes for regular channels (1982)

The problem of the explicit construction of encoders achieving Shannon's capacity and admitting a simple decoding algorithm is considered. A solution based on Justesen's idea of variable concatenated codes is given for the case of a symmetric memoryless channel with an input alphabet of prime power order, under the assumption that the information messages are equiprobable. This construction remains good for a nonsymmetric channel provided the encoding rate is smaller than a well-defined "pseudocapacity." In case the channel is regular, it is shown that the error probability after decoding is an exponentially decreasing function of the block length for any encoding rate less than the channel capacity.
Stretch Processing for Long Integration Time Passive Covert Radar (2006)

The paper presents a study of possibility of increasing the passive covert radar sensitivity by extending the coherent integration time. The long integration time induces the target range migration of moving targets. To overcome this problem, the usage of stretch processing is investigated. The paper shows, that even a simplified algorithm applying stretch processing concept, can significantly improve the radar sensitivity
Alar Batten Grafting for Management of the Collapsed Nasal Valve (2002)

Alar batten cartilage grafting is an easy, highly effective therapeutic measure in the treatment of nasal valve collapse. The surgical technique is demonstrated.
A Review of Optimal Routing Problem for Electric Vehicle (2019)

Electric Vehicle Routing Problem (EVRP) has received considerable interest in these recent years in the field of combinatorial optimization. A tremendous range of methods has been found in the literature. In this paper, the EVRP rating is presented in an attempt to provide common classification mechanisms. As a clarification of the usefulness of the classification, an annotated bibliography is provided. It assorts the problem according to the characteristics of the electric vehicle and the methods used, whether it is exact or approximate methods.
Risk of Staphylococcus aureus transmission during ultrasound investigation. (1989)

An investigation of staphylococcal transmission between patients undergoing routine abdominal ultrasound procedures was carried out to assess the potential risks of cross-infection. In 13% of procedures the probe was found to be colonized with Staphylococcus aureus. Four of 19 patients were shown to have colonized the probe directly. Two patients were shown to have become colonized as a result of the procedure and some evidence is presented of possible interpatient cross-colonization. It is suggested that this is an underestimation of the potential of cross-infection and simple inexpensive infection control procedures are suggested.
CSMA-based MAC protocol for collision avoidance in a dense RFID network (2010)

The application of RFID in industry warehouse, monitoring system and personal life brings researchers and engineers to focus on it. RFID has a number of technological challenges. First, electronic architectures must manage large amounts of data and minimize energy consumption. In addition, they must fully implement an integrated software architecture that enables reliable transfer of data by minimizing the collision rate. In this paper, we address an important issue in an RFID system: MAC protocol characterization to avoid reader-reader and reader-tag collisions in a dense RFID network.
Survival of Patients With Cystic Fibrosis (1970)

cardiorespiratory arrest (the cause for which was not established).During her resuscitation she was dragged across a floor and received severe full thickness lacerations to the purpuric and atrophic areas of skin on both arms and both legs.The skin loss on her right leg required grafting.She was discharged seven weeks after admission.Subsequently she had pain and discomfort in areas of scar tissue.She required beclomethasone 1-1 5 mg daily for her asthma.While she was stabilised on a dose of 1 mg beclomethasone daily a short tetracosactrin test showed borderline impairment of her adrenal function (basal plasma cortisol concentration 150 nmol/l, 30 minutes after tetracosactrin 0-25 mg intramuscularly 531 nmoL/l).Although senile purpura and corticosteroid purpura resemble each other closely,4 this patient's age, the location of bruising on her legs4 and the appearance of the bruising some months after taking higher doses of inhaled beclomethasone suggest that her purpura was induced by the steroid.Doctors should continue to be aware of the possibility of appreciable systemic side effects of this form of treatment.