gebhart/patrepeval huggingface dataset:
Enhanced Flexibility of a Bulged DNA Fragment from Fluorescence Anisotropy and Brownian Dynamics (1998)

A fragment of DNA built from 50 base pairs and two five-adenine unpaired sequences, each inserted in the center of the duplex, has been investigated by measuring the polarization anisotropy decay of intercalated ethidium fluorescence (FPA). When the data from this bulged fragment are compared to those from a straight fully paired duplex or to those from a fragment bent by a five-adenine insertion in one strand, then systematic differences are found in the fluorescence parameters. By employing Brownian dynamics simulations, it is shown that the FPA results from the fragment with the double insertion can be interpreted by assuming a softening of the elastic constant at the bulge. Estimates of the torsion and the bending rigidities at the bulge site are also given.
Schutz und Widerstand durch Betonbauwerke bei chemischem Angriff : 8. Symposium Baustoffe und Bauwerkserhaltung, Karlsruher Institut für Technologie (KIT) ; 17. März 2011 (2011)

Im vorliegenden Tagungsband zum 8. Symposium Baustoffe und Bauwerkserhaltung geben namhafte Autoren zunächst einen umfassenden Überblick über die maßgebenden Mechanismen des chemischen Betonangriffs und erläutern anschließend an ausgewählten Beispielen, wie eine hohe Dauerhaftigkeit des Betons bei typischen Angriffsarten sichergestellt werden.
PhishZoo: Detecting Phishing Websites by Looking at Them (2011)

Phishing is a security attack that involves obtaining sensitive or otherwise private data by presenting oneself as a trustworthy entity. Phishers often exploit users' trust on the appearance of a site by using web pages that are visually similar to an authentic site. This paper proposes a phishing detection approach - PhishZoo - that uses profiles of trusted websites' appearances to detect phishing. Our approach provides similar accuracy to blacklisting approaches (96%), with the advantage that it can classify zero-day phishing attacks and targeted attacks against smaller sites (such as corporate intranets). A key contribution of this paper is that it includes a performance analysis and a framework for making use of computer vision techniques in a practical way.
Power Allocation and Subcarrier Pairing Algorithm for Regenerative OFDM Relay System (2007)

Relayed transmission is a promising technique that helps in attaining broader coverage and in combating the impairment of the wireless channel. Orthogonal frequency division multiplexing (OFDM) technique is promising for the next generation wireless communication system. Therefore, the combination of two techniques named OFDM-relay will be a good candidate technology for future wideband wireless communication. This paper investigates the resource allocation of two-hop regenerative OFDM relay system with/without diversity. Optimization of power allocation (PA) is proposed to maximize the channel capacity and subcarrier pairing strategy is adopted to improve the system performance further. In addition, the resource allocation for multi-hop OFDM system without diversity is also presented. The resource allocation is based on the instantaneous channel state information (ICSI) and aims to maximize the system capacity. The order pairing strategy is proved to be a good choice for multi-hop regenerative OFDM relay system without diversity. The simulation results show that combining with the pairing algorithm, efficient power allocation will greatly improve the system capacity.
Graphene-Riched Co9S8-N-C Non-Precious Metal Catalyst for Oxygen Reduction in Alkaline Media (2011)

In this work, a non-precious metal catalyst consisting of Co9S8 nanoparticles surrounded with nitrogen-doped graphene-like carbon (Co9S8-N-C) was developed for oxygen reduction in alkaline media. Improved activity has been measured with the Co9S8-N-C catalyst relative to Pt/C and a non-precious metal catalyst based on Fe instead of Co (Fe-N-C). An extensive physical characterization, including XRD, SEM, TEM, and XPS and electrochemical kinetic analysis was conducted to provide insight into the catalyst morphology and structure.
Multiparameter analysis of murine bone marrow side population cells (2003)

We describe the multiparameter flow cytometric analysis of the relationship between side population (SP) formation and well-characterized, antigen-defined stem cell subsets. We also compared the competitive repopulation ability of subsets defined by the SP profile to those identified by antigenic markers. The vast majority of SP cells possessed a primitive cell phenotype (c-kit+, SCA-1+, Thy-1+, CD31+, CD135neg, lineage neg), but only a minority of antigen-defined subsets were SP cells. Hence, although SP cells are identified independently of antigenic markers, they are not distinct from established stem cell phenotypes, but are a small subset of them. Approximately half of SP cells expressed CD34 at readily detectable levels, and one-third of SP cells possessed the primitive c-kit+, SCA-1+, lineage neg, CD34neg cell phenotype. Since most SP cells are a subset of c-kit+, Thy-1+, lineage neg, SCA-1+ cells (KTLS), we determined whether the SP cell subset represents a further enrichment in long-term repopulating cell content. The SP+ subset of KTLS+ cells was more enriched for competitive repopulation units than the SP- fraction of KTLS+ cells. Hence, the SP cell fraction highlights a subset of the long-term repopulating cells found within the already highly purified KTLS fraction.
Facile and reversible conversion of an ammonium tetraphenylborate salt, Fe(NO)2[PhP(OCH2CH2)2NH2+]2[BPh4-]2, into an amine-triphenylborane adduct, Fe(NO)2[PhP(OCH2CH2)2N(H).BPh3]2 (1984)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTFacile and reversible conversion of an ammonium tetraphenylborate salt, Fe(NO)2[PhP(OCH2CH2)2NH2+]2[BPh4-]2, into an amine-triphenylborane adduct, Fe(NO)2[PhP(OCH2CH2)2N(H).BPh3]2Laurence Mordenti, Jean Louis Roustan, and Jean G. RiessCite this: Inorg. Chem. 1984, 23, 26, 4503–4506Publication Date (Print):December 1, 1984Publication History Published online1 May 2002Published inissue 1 December 1984https://pubs.acs.org/doi/10.1021/ic00194a019https://doi.org/10.1021/ic00194a019research-articleACS PublicationsRequest reuse permissionsArticle Views84Altmetric-Citations8LEARN 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
RELIABILITY AND STANDARDIZATION OF THE HIP EXAMINATION IN OSTEOARTHRITIS (2008)

Purpose: To evaluate the benefits of standardization on the reliability of the physical examination of the hip by rheumatologists and orthopaedic surgeons Methods: Six subjects with mild to severe hip osteoarthritis (OA) were examined by 6 examiners (4 rheumatologists, 2 orthopedic surgeons) experienced in the assessment of hip OA using a 6x6 Latin square design. Subjects were examined, followed by a standardization meeting and, a day later, by post-standardization examinations. 33 hip examination maneuvers were evaluated, including range of motion, pain, tenderness, muscle strength, leg length and gait. The order of examinations was randomized for each examiner. For dichotomous signs, agreement was calculated as the prevalence-adjusted bias-adjusted kappa (PABAK). Ordinal and continuous variables were analyzed by ANOVA, using the proportion of variance due to rheumatologists to calculate a reliability coefficient (Rc). Results: Subjects’ mean age was 61 years (range 49–65), mean BMI was 24 (range 21–30), mean WOMAC pain on walking was 52 mm (range 21–81mm). 23/33 (70%) hip examinations were reliable after standardization. Two new items resulted from the standardization meeting. Pre-/post-standardization reliability for select hip examinations using PABAK were as follows: Gait 0.06/0.52; pain on internal rotation 0.60/0.52; pain on external rotation 0.24/0.72; pain on flexion 0.46/0.82; Patrick test for hip pain 0.78/0.80; Thomas test 0.60/0.88; Trendelenburg test 0.36/0.06. Pre-/post-standardization reliability for select hip examinations using Rc were as follows: hip flexion strength 0.83/0.95; hip abduction strength 0.90/0.86; hip adduction strength 0.87/0.86; ROM internal rotation (supine) 0.87/0.94; ROM external rotation (supine) 0.87/0.80. Conclusions: Moderate to very good agreement was present for many hip examinations prior to standardization. Improved reliability was achieved after standardization for many but not all hip assessments. This will be important for improved outcome studies of early hip OA.
Strength of electromagnetic, acoustic and Schrödinger reflections (2008)

The notion of reflection strength S of a plane wave by an arbitrary non-absorbing layer is introduced, so that the intensity of reflection is R =tanh 2 S . We have shown that the total strength of reflection by a sequence of elements is expressed through particular element strengths and mutual phases between them by a simple addition rule; in particular, its possible maximum is the sum of the absolute strengths of constituents. We show that the standard Fresnel reflection may be understood in terms of variable S as a sum or difference of two separate contributions, due to an impedance step and a speed step. Strength of reflection for propagating acoustic and quantum mechanical waves is also discussed.
Neurocirurgia em cenário de guerra urbana, craniectomia descompressiva simultânea a cesárea de emergência em gestante vítima de lesão traumática cerebral por projétil de arma de fogo craniano: relato de caso (2018)

Apresentação do caso: Primigesta na trigésima segunda semana com 33 anos de idade foi admitida no setor de emergência vítima de Trauma Crânio Encefálico por projetil de arma de fogo (PAF) com orifício de entrada em região frontal esquerda. Identificou-se rebaixamento do nível de consciência devido a choque hipovolêmico, com Escala de Coma de Glasgow 7, além de indícios de sofrimento fetal com batimentos cardíacos fetais de 90 por minuto. A tomografia computadorizada de crânio revelou PAF em região frontal parassagital esquerda, hematoma subdural agudo, afundamento de calota craniana, contusão cerebral e desvio de linha média. Realizou-se então craniectomia descompressiva frontoparietotemporal à esquerda seguida de hemostasia e reposição volêmica vigorosa com plasma e sangue; optou-se simultaneamente pela interrupção da gestação por cesariana com nascimento de feto vivo. O recém-nascido (RN) apresentou-se hipotônico, bradicárdico e não reativo com APGAR 1/3 havendo necessidade de intubação e transferência para centro de terapia intensiva (CTI) neonatal. A paciente foi encaminhada para o CTI sendo extubada 72 horas após apresentando hemiparesia braquiocrural à direita com grau 4 de força e bradipsiquismo. A mesma recebeu alta 11 dias após sua admissão com escala de glasgow de 15 e paresia leve do membro superior direito. O RN recebeu alta 24 dias após sua internação em regular estado geral com considerável melhora evolutiva e sem déficits aparentes.
Improving speed of tunnel FETs logic circuits (2015)

Tunnel transistors are one of the most attractive steep subthreshold slope devices which are being investigated to overcome power density and energy inefficiency exhibited by CMOS technology. These transistors exhibit asymmetric conduction which can cause sustained noise voltage pulses (bootstrapping) within digital tunnel FET circuits leading to delay degradation. A minor modification of the complementary gate topology to avoid the bootstrapping problem is proposed and its impact on speed at the circuit level is shown. Speed improvements up to 33% have been obtained for 8‐bit ripple carry adders when implemented with the solution.
Asplenium trichomanes L. (2002)

https://thekeep.eiu.edu/herbarium_specimens_byname/17338/thumbnail.jpg
Design and Characterization of a Gradient-Transparent RF Copper Shield for PET Detector Modules in Hybrid MR-PET Imaging (2017)

This paper focuses on the design and the characterization of a frequency-selective shield for positron emission tomography (PET) detector modules of hybrid magnetic resonance-PET scanners, where the shielding of the PET cassettes is located close to the observed object. The proposed shielding configuration is designed and optimized to guarantee a high shielding effectiveness (SE) of up to 60 dB for B <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">1</sub> -fields at the Larmor frequency of 64 MHz, thus preventing interactions between the radio-frequency (RF) coil and PET electronics. On the other hand, the shield is transparent to the gradient fields with the consequence that eddy-current artifacts in the acquired EPI images are significantly reduced with respect to the standard solid-shield configuration. The frequency-selective behavior of the shield is characterized and validated via simulation studies with CST MICROWAVE STUDIO in the megahertz and kilohertz range. Bench measurements with an RF coil built in-house demonstrated the high SE at the Larmor frequency. Moreover, measurements on a 4-T human scanner confirmed the abolishment of eddy current artifact and also provided an understanding of where the eddy currents occur with respect to the sequence parameters. Simulations and measurements for the proposed shielding concept were compared with a solid copper shielding configuration.
The Structured Clinical Interview for DSM-5 Internet Gaming Disorder: Development and Validation for Diagnosing IGD in Adolescents (2017)

The implications and limitations of the study are also discussed.
[Rupture of an aneurysm of the internal iliac artery into the primary iliac vein]. (1995)

Authors present a case of spontaneous rupture of internal iliac artery in common iliac venous, and propose a review of cases reported in literature. Abreast of modern imagery and especially computed tomography is able to give a precise diagnosis, but angiography is the Most accurate procedure for detecting arteriovenous fistula and cannot be excluded out of diagnostic approach.
Proliferation of CD30+ T-helper 2 lymphoma cells can be inhibited by CD30 receptor cross-linking with recombinant CD30 ligand. (2003)

CD30+ ALCL cells can be growth inhibited by receptor ligation. Observed pleiotropic effects of CD30 signaling are most likely dependent on cell cycle status and signal strength. The binding of CD30 by its ligand provides new opportunities for controlling cell growth and treatment of CD30+ ALCL.
Mechanical design of a distal scanner for confocal microlaparoscope: A conic solution (2013)

This paper presents the mechanical design of a distal scanner to perform a spiral scan for mosaic-imaging with a confocal microlaparoscope. First, it is demonstrated with ex vivo experiments that a spiral scan performs better than a raster scan on soft tissue. Then a mechanical design is developed in order to perform the spiral scan. The design in this paper is based on a conic structure with a particular curved surface. The mechanism is simple to implement and to drive; therefore, it is a low-cost solution. A 5:1 scale prototype is implemented by rapid prototyping and the requirements are validated by experiments. The experiments include manual and motor drive of the system. The manual drive demonstrates the resulting spiral motion by drawing the tip trajectory with an attached pencil. The motor drive demonstrates the speed control of the system with an analysis of video thread capturing the trajectory of a laser beam emitted from the tip.
Verbesserung der Bestehensquoten durch ein Peer Assessment-Pflichtpraktikum (2015)

Peer Assessment ist eine Methode, bei der die Teilnehmer eine gestellte Aufgabe nicht nur bearbeiten und einreichen, sondern – in einer zweiten Phase – diese auch gegenseitig uberprufen, kommentieren und bewerten. Durch diese Methode wird, auch in sehr grosen Veranstaltungen, das Uben mit individuellen Bewertungen und individuellem Feedback moglich.
Im Wintersemester 2013/14 wurde dieser Ansatz in der Erstsemesterveranstaltung Programmieren an der Technischen Hochschule Nurnberg mit 340 Studierenden als semesterbegleitendes Online-Pflichtpraktikum erprobt. Bei gleichen Leistungsanforderungen wurde bei Studierenden, die erfolgreich am Praktikum teilnahmen, eine Reduzierung der Durchfallquote um durchschnittlich 60 % und eine Verbesserung der Durchschnittsnote um 0,6 – 0,9 Notenstufen erzielt. Zudem lernten die teilnehmenden Studierenden kontinuierlicher, bereiteten Lerninhalte besser nach und gelangten zu einer uberwiegend positiven Einschatzung des Praktikums und der Methode. Im E-Learning System Moodle kann Peer Assessment, mit moderatem Umsetzungs- und Betreuungsaufwand, mit der Workshop-Aktivitat realisiert werden. Im Beitrag wird auf die Schlusselelemente des erfolgreichen Einsatzes von Peer Assessment eingegangen.
Distinct Signatures of Genomic Copy Number Variants Define Subgroups of Merkel Cell Carcinoma Tumors (2021)

Merkel cell carcinoma (MCC) is a rare, aggressive neuroendocrine skin cancer. Most MCC tumors contain integrated Merkel cell polyomavirus DNA (virus-positive MCC, VP-MCC) and carry a low somatic mutation burden whereas virus-negative MCC (VN-MCC) possess numerous ultraviolet-signature mutations. In contrast to viral oncogenes and sequence mutations, little is known about genomic structural variants in MCC. To identify copy number variants in commonly altered genes, we analyzed genomic DNA from 31 tumor samples using the Nanostring nCounter copy number cancer panel. Unsupervised clustering revealed three tumor groups with distinct genomic structural variant signatures. The first cluster was characterized by multiple recurrent deletions in genes such as <i>RB1</i> and <i>WT1</i>. The second cluster contained eight VP-MCC and displayed very few structural variations. The final cluster contained one VP-MCC and four VN-MCC with predominantly genomic amplifications in genes like <i>MDM4</i>, <i>SKP2</i>, and <i>KIT</i> and deletions in <i>TP53</i>. Overall, VN-MCC contained more structure variation than VP-MCC but did not cluster separately from VP-MCC. The observation that most MCC tumors demonstrate a deletion-dominated structural group signature, independent of virus status, suggests a shared pathophysiology among most VP-MCC and VN-MCC tumors.
Synthesis and Characterization of A Photo-Cross-Linked Biodegradable Elastomer (2004)

The synthesis and characterization of a photocurable biodegradable elastomer as a potential biomaterial for the delivery of thermosensitive drugs are described. The elastomer was prepared from UV initiated cross-linking of an acrylated star-poly(epsilon-caprolactone-co-D,L-lactide) prepolymer. The influence of the molecular weight of the acrylated prepolymer on the final elastomer mechanical and thermal properties was determined. The glass-transition temperature of the elastomers was independent of the prepolymer molecular weight and was from -6 to -8 degrees C. The Young's modulus and stress at break of the elastomers was proportional to the inverse of the prepolymer molecular weight, while the strain at break increased in a linear fashion with the prepolymer molecular weight. Over a degradation period of 12 weeks in phosphate buffered saline, the elastomers exhibited little mass loss, appreciable mechanical strength loss, and little dimensional or strain at break change.
Experimental determination of the charge/neutral branching ratioηin the photoexcitation ofπ-conjugated polymers by broadband ultrafast spectroscopy (2007)

We demonstrate a long-sought reliable method for determining the important branching ratio $\ensuremath{\eta}$ between photogenerated charged polarons and neutral excitons in $\ensuremath{\pi}$-conjugated polymer films and solutions, using femtosecond transient photomodulation spectroscopy with broad spectral range from 0.14 to $2.7\phantom{\rule{0.3em}{0ex}}\mathrm{eV}$. We found that both excitons and polarons are instantaneously photogenerated, but $\ensuremath{\eta}$ critically depends on the film nanomorphology, which ultimately controls the interchain coupling strength. We also found that a correlation exists within each polymer family between the obtained $\ensuremath{\eta}$ value, photoluminescence quantum efficiency, and the transient polarization memory lifetime; where the interchain coupling strength in the film determines them all. We show that $\ensuremath{\eta}$ varies from less than 1% in solutions and glassy films of poly(p-phenylene-vinylene) derivatives, where the polymer chains are relatively isolated; to more than 30% in ordered films that contain lamellae, such as regio-regular poly(3-hexyl-thiophene). Our results may serve for matching polymers to specific device applications, where polymers with large $\ensuremath{\eta}$ values are good candidates for photodetector and photovoltaic applications, whereas those with small $\ensuremath{\eta}$ values are more suitable for active layers in organic light emitting devices.
Evaluation of Richmond Agitation Sedation Scale According To Alveolar Concentration of Sevoflurane During a Sedation With Sevoflurane in Icu Patients (2015)

In ICU sedation, use of inhalated gaz has interesting qualities, but remains limited due to lack of available and appropriate material. a new medical device (MirusTM (Pall)) allows feedback of the delivered flow rate from the targeted minimal alveolar concentration (MAC). Sedation is usually monitored by the RASS (Richmond Assessment Sedation Score).
Predictive value of Ki-67 and argyrophilic nucleolar organizer region staining for lymph node metastasis in gastric cancer. (1991)

Proliferative activities in 91 primary gastric carcinomas and 36 corresponding metastatic perigastric lymph nodes were investigated using Ki-67 labeling percentage and an argyrophilic nucleolar organizer region (AgNOR) count. Tumors with a high proliferative activity often metastasized to lymph nodes, and the proliferative activities of the primary lesion and the perigastric lymph node metastases were similar. A significant correlation was recognized between the Ki-67 labeling percentage and the AgNOR count (r = 0.744; P less than 0.001). The Ki-67 labeling percentage and AgNOR count proved to be useful predictors of nodal metastasis regardless of tumor size, depth of invasion, and histological type. Even when tumors are smaller (less than 7 cm) or the stage of the disease is early (pT1, 2), the formation of metastasis increased with an increased Ki-67 labeling percentage or AgNOR count. The combination analysis of depth of invasion with Ki-67 labeling percentage or AgNOR count gives a more precise prediction of nodal metastasis, compared with histological analysis alone.