gebhart/patrepeval huggingface dataset:
Semitransparent organic photovoltaic cells (2006)

We demonstrate semitransparent, small molecular weight organic solar cells employing a thin silver/indium tin oxide compound cathode with a maximum transmission of (60±6)% averaged over the visible spectral range and with a power conversion efficiency, ηp=(0.28±0.03)% under simulated, AM1.5G, 1 sun illumination. By increasing the Ag thickness, an average transmission of (26±3)% is achieved with ηp=(0.62±0.06)%, a value approximately half of that obtained for the same structure employing a conventional, reflective, and thick Ag cathode. A semitransparent tandem organic solar cell with ηp=(0.48±0.02)% and an average transmission of (44±4)% is also demonstrated. Semitransparent organic photovoltaic cells have potential uses as tinted and power-generating thin-film coatings on architectural surfaces, such as windows and walls. The use of a transparent top electrode also significantly simplifies the design of tandem cells, relaxing requirements for the placement of different absorbing materials at the maxima of optical fields introduced by reflective cathodes.
Multifactorial Benefits of Chronic Vagus Nerve Stimulation on Autonomic Function and Cardiac Electrical Stability in Heart Failure Patients With Reduced Ejection Fraction (2022)

Heart failure with reduced left ventricular ejection fraction is a progressive disease that claims > 352,000 lives annually in the United States alone. Despite the development of an extensive array of pharmacologic and device therapies, prognosis remains poor. Disruption in autonomic balance in the form of heightened sympathetic nerve activity and reduced vagal tone have been established as major causes of heart failure progression. Interest in chronic neuromodulation mediated by vagus nerve stimulation (VNS) has intensified in recent years. This review focuses on four main goals: (1) To review the preclinical evidence that supports the concept of a cardioprotective effect of VNS on autonomic function and cardiac electrical stability along with the underlying putative mechanisms. (2) To present the initial clinical experience with chronic VNS in patients with heart failure and highlight the controversial aspects of the findings. (3) To discuss the latest findings of the multifactorial effects of VNS on autonomic tone, baroreceptor sensitivity, and cardiac electrical stability and the state-of-the-art methods employed to monitor these relationships. (4) To discuss the implications of the current findings and the gaps in knowledge that require attention in future investigations.
Compositional Multiscale Finite-Volume Formulation (2013)

Abstract In this paper, the Multiscale Finite-Volume (MSFV) method is extended to include compositional displacements in heterogeneous porous media, in which accurate modeling of the mass transfer and associated phase behaviors is critical. A sequential-implicit strategy is employed to deal with the coupling of the flow (pressure) and transport (component overall concentration) problems. In this com- positional formulation, the overall continuity equation (i.e., conservation of total mass) is used to formulate the pressure equation. The resulting pressure equation conserves total mass by construction and has weak dependencies on the distributions of the phase compo-sitions. The transport equations are expressed in terms of the overall composition; hence, phase appearance and disappearance effects do not appear explicitly in these expressions. Given the discrete forms of the flow and transport problems, the details of the MSFV strategy are then described for the efficient solution of the pressure equation. The only source of error in this MSFV framework is due to the well-known localization assumptions. No additional assumption due to the complex physics is done in this framework. For one-dimensional problems, the proposed sequential strategy results are validated against those obtained by a fully implicit simulator. The accuracy and efficiency of the MSFV method for compositional simulations are then illustrated for different numerical test cases. It is shown that the MSFV results are identical to the fine-scale solutions for one-dimensional problems in transient- and steady- states.
The 2023 wearable photoplethysmography roadmap (2023)

Photoplethysmography is a key sensing technology which is used in wearable devices such as smartwatches and fitness trackers. Currently, photoplethysmography sensors are used to monitor physiological parameters including heart rate and heart rhythm, and to track activities like sleep and exercise. Yet, wearable photoplethysmography has potential to provide much more information on health and wellbeing, which could inform clinical decision making. This Roadmap outlines directions for research and development to realise the full potential of wearable photoplethysmography. Experts discuss key topics within the areas of sensor design, signal processing, clinical applications, and research directions. Their perspectives provide valuable guidance to researchers developing wearable photoplethysmography technology.
Abstract 66: MMP-7 cleavage of the Perlecan-Sema3A-Plexin(A1)-Neuropilin-1 complex promotes the progression of metastatic prostate cancer (2019)

Abstract Introduction: Perlecan/HSPG2 is a major component of the basement membrane and of reactive stroma. PCa relies on matrix metalloproteinase activity to pass through five perlecan-rich boundaries to metastasize to bone. Semaphorin 3A (Sema3A), a secreted factor, complexes with perlecan at the cell surface and binds to a plexin-neuropilin receptor, resulting in a cohesive tumor state. In prostate cancer (PCa) metastasis, cleavage of this complex and disruption of the perlecan-rich stroma promotes migration to secondary sites. Loss of the Perlecan-Sema3A-Plexin(A1)-Neuropilin-1 (PSPN)-complex by MMP-7 cleavage of perlecan disrupts PCa cohesion and enables the formation of circulating tumor cells (CTCs). Downstream FAK, Akt, and FOXM1 are activated by loss of the PSPN-complex in the tumor microenvironment, promoting growth and metastasis. The extent of MMP-7 cleavage of the other components of the PSPN-complex was unknown. Methods: Knockdowns using shRNA of various PSPN-complex components were used to identify the perlecan-Sema3A binding partners (plexin A1 and neuropilin-1) on the PCa cell surface. Both in silico and in vitro analysis of plexin A1 and neuropilin-1 revealed potential MMP-7 cleavage sites within the PSPN-complex. Silver staining was used to analyze the extent of cleavage of the PSPN-complex components by MMP-7. Western blot analysis was used to probe for any resulting molecular changes in downstream signaling from PSPN-complex components (FAK, Akt, and FOXM1). Changes in cell cohesion were monitored to associate changes in signaling with phenotypic changes in cell behavior. Results: Knockdowns of the plexin A1 component of the PSPN-complex prevented tumoroid-like formation of PCa cells, implicating this plexin as having a key role in maintaing PCa cohesion mediated through the PSPN-complex. MMP-7 cleavage of various PSPN-complex components resulted in complex destruction, PCa dyscohesion, and the activation of downstream metastasis-promoting factors FAK, Akt, and FOXM1. Conclusion: The dynamic interactions between the PSPN-complex and MMP-7 at the PCa cell surface governs the cohesion-dyscohesion behavior of PCa cells. Loss of the PSPN-complex by MMP-7 cleavage results in a dyscohesive and metastatic phenotype. Downstream factors FAK, Akt, and FOXM1 can be activated by loss of the PSPN-complex, further implicating the importance of this complex in the metastasis of PCa. These components offer a novel target to perturb the progression of metastatic disease and to prevent CTC formation in PCa patients. Citation Format: Tristen V. Tellman, Lissette A. Cruz, Brian J. Grindel, Leland W.K. Chung, Mary C. Farach-Carson. MMP-7 cleavage of the Perlecan-Sema3A-Plexin(A1)-Neuropilin-1 complex promotes the progression of metastatic prostate cancer [abstract]. In: Proceedings of the American Association for Cancer Research Annual Meeting 2019; 2019 Mar 29-Apr 3; Atlanta, GA. Philadelphia (PA): AACR; Cancer Res 2019;79(13 Suppl):Abstract nr 66.
Surface Microroughness of Silicon in Wet Process and its Minimization (2007)

This DOI is not currently attached to any metadata records. DOIs can’t actually ever be deleted (they’re persistent), but sometimes our members create DOIs in error. We do have a process to approximate deletion which we follow only in rare cases where the DOI has been genuinely created in error, and most crucially, if the DOI has never been published anywhere online or in print and never otherwise distributed to or communicated with anyone (authors, readers, reviewers, etc.
ChemInform Abstract: A C‐B‐A‐D Approach to Brassinosteroids; Obtention of a C‐Ring Precursor (VIII) from Pyridine. (1994)

Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
P1117EXPLORATORY COMPARISON OF DIALYSIS EFFICIENCY AT DIFFERENT DIALYSATE FLOW (QD) IN EXPANDED HEMODIALYSIS IN TWO CENTERS IN COLOMBIA (2020)

Abstract Background and Aims Dialysate flow rate (Qd) has minimal effect in removal of molecules in hemodialysis, allowing to use lower amounts of dialysate with no effect in clearance of molecules. According to recent literature, Expanded hemodialysis (HDx) improves the clearance of middle size molecules, diminishing the effect of Qd in adequacy. We found no data about clearance at different dialysate flow rates in HDx. Our aim is to evaluate the clearance of middle molecules (beta 2 microglobuline [Mβ2], interleukin-6 [IL-6], interleukin-10 [IL-10 light chains (CLL-κ -λ) with HDx at different Qd using membranes TheranovaMR in patients with body weight less than 70 Kg. Method We performed an observational retrospective analysis of clearance of Mβ2, IL-6, IL-10, CLL-κ; CLL-λ in HDx using TheranovaMR filters with Qd 400 mL/min and 500 mL/min. We performed variance analysis, T student test and Wilcoxon test. Data were extracted from an HDx multicentric trial performed in Bogotá, Colombia in 2018. Results 11 (47%) patients received Qd 400 mL/min and 12 (52.1%) patients with Qd 500ml/min. Demographic data are included in table 1. We found no differences in reduction rate of mid-molecules. (Table 2) We found that lower water consume in the Qd 400 mL/min group, with water savings of 24 Liters/patient (13824 L in 12 weeks of follow up). (Table 3) Conclusion Expanded hemodialysis seems to allow diminishing Qd rate without changes in mid-size molecules clearance.
New Strategies for the Preparation of Sinter‐Resistant Metal‐Nanoparticle‐Based Catalysts (2019)

Supported metal nanoparticles are widely used as catalysts in the industrial production of chemicals, but still suffer from deactivation because of metal leaching and sintering at high temperature. In recent years, serious efforts have been devoted to developing new strategies for stabilizing metal nanoparticles. Recent developments for preparing sinter-resistant metal-nanoparticle catalysts via strong metal-support interactions, encapsulation with oxide or carbon layers and within mesoporous materials, and fixation in zeolite crystals, are briefly summarized. Furthermore, the current challenges and future perspectives for the preparation of highly efficient and extraordinarily stable metal-nanoparticle-based catalysts, and suggestions regarding the mechanisms involved in sinter resistance, are proposed.
SYNTHESIS OF A NEW PENTACYCLIC SYSTEM : PYRROLO[2,1-c]QUINAZOLlNO[3,2-a][1,4]BENZODIAZEPINES: ELUCIDATION OF STRUCTURES (1995)

Article SYNTHESIS OF A NEW PENTACYCLIC SYSTEM : PYRROLO[2,1-c]QUINAZOLlNO[3,2-a][1,4]BENZODIAZEPINES: ELUCIDATION OF STRUCTURES was published on October 1, 1995 in the journal Heterocyclic Communications (volume 1, issue 5-6).
Infrared photochemistry of a volatile uranium compound with 10-.mu. absorption (1979)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTInfrared photochemistry of a volatile uranium compound with 10-.mu. absorptionSteven S. Miller, Donald D. DeFord, Tobin J. Marks, and Eric WeitzCite this: J. Am. Chem. Soc. 1979, 101, 4, 1036–1037Publication Date (Print):February 1, 1979Publication History Published online1 May 2002Published inissue 1 February 1979https://doi.org/10.1021/ja00498a043RIGHTS & PERMISSIONSArticle Views77Altmetric-Citations29LEARN 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 InReddit PDF (337 KB) Get e-Alerts Get e-Alerts
Multi-Contact Quantum Dot Superluminescent Diodes for Optical Coherence Tomography (2008)

Multi-contact chirped quantum dot superluminescent diodes are characterized with regard to key parameters for image quality in optical coherence tomography systems. By tuning power and spectral shape, the penetration depth and resolution are decoupled.
Polymerization of methyltrioxorhenium(VII) organometallic oxides as precursors for oxide ceramics (1992)

Polymerization by acid‐induced aggregation , a process that was previously unknown in organometallic chemistry, is shown to occur in methyltrioxorhenium(VII). The resulting polymer, an oxide ceramic precursor, undergoes an unusual depolymerization: in the weeks following compression of a pellet of the polymer, the surface becomes covered with large single crystals of the monomer (see figure). This is the first example of the specific crystallization of a metal‐organic compound from the solid state by application of pressure. magnified image
Directed Evolution of a Glycosynthase via Chemical Complementation (2004)

Recently, we reported a general assay for enzyme catalysis based on the yeast three-hybrid assay, Chemical Complementation, which is intended to expand the range of chemical reactions to which directed evolution can be applied. Here, Chemical Complementation was applied to a glycosynthase derived from a retaining glycosidase, an important class of enzymes for carbohydrate synthesis. Using the yeast three-hybrid assay, the glycosynthase activity of the E197A mutant of the Cel7B from Humicola insolens was linked to transcription of a LEU2 reporter gene, making cell growth dependent on glycosynthase activity in the absence of leucine. Then the LEU2 selection was used to isolate the most active glycosynthase from a Glu197 saturation library, yielding an E197S Cel7B variant with a 5-fold increase in glycosynthase activity. These results not only establish Chemical Complementation as a platform for the directed evolution of glycosynthases, but also show the generality of this approach and the ease with which it can be applied to new chemical reactions.
ChemInform Abstract: Spiro‐imidazo[1,2‐a]indeno[1,2‐e]pyrazine‐4‐one Derivatives are Mixed AMPA and NMDA Glycine‐Site Antagonists Active in vivo. (2000)

Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
Transcription Factor Control of Dendrite Targeting via Combinatorial Cell-Surface Codes (2021)

Abstract Transcription factors are central commanders specifying cell fate, morphology, and physiology while cell-surface proteins execute these commands through interaction with cellular environment. In developing neurons, it is presumed that transcription factors control wiring specificity through regulation of cell-surface protein expression. However, the number and identity of cell-surface protein(s) a transcription factor regulates remain largely unclear1,2. Also unknown is whether a transcription factor regulates the same or different cell-surface proteins in different neuron types to specify their connectivity. Here we use a lineage-defining transcription factor, Acj6 (ref. 3), to investigate how it controls precise dendrite targeting of Drosophila olfactory projection neurons (PNs). Quantitative cell-surface proteomic profiling of wild-type and acj6 mutant PNs in intact developing brains and a proteome-informed genetic screen identified PN surface proteins that execute Acj6-regulated wiring decisions. These include canonical cell adhesion proteins and proteins previously not associated with wiring, such as the mechanosensitive ion channel Piezo—whose channel activity is dispensable for its wiring function. Comprehensive genetic analyses revealed that Acj6 employs unique sets of cell-surface proteins in different PN types for dendrite targeting. Combinatorial expression of Acj6 wiring executors rescued acj6 mutant phenotypes with higher efficacy and breadth than expression of individual executors. Thus, a key transcription factor controls wiring specificity of different neuron types by specifying distinct combinatorial expression of cell-surface executors.
Matrix-Assisted Laser Desorption Ionization Imaging and Laser Ablation Sampling for Analysis of Fungicide Distribution in Apples (2019)

A combination of matrix-assisted laser desorption ionization (MALDI) imaging and infrared (IR) laser ablation sampling with offline electrospray ionization mass spectrometry (ESI-MS) was used to determine the distribution of the fungicide imazalil in apples. MALDI images were used to determine the penetration depth of imazalil up to 7 days after its application. IR laser ablation sampling and ESI-MS were used to quantify the rate of penetration of the fungicide, which was determined to be approximately 1 mm per day. Imazalil concentration decreased in the apple skin over the course of the experiment, and after 7 days the fungicide was detected at 0.015 ppm 6 mm inside the apple. Approximately 60% of the pesticide remained in the skin after 7 days. This work demonstrates the utility of MALDI imaging for spatial localization of fungicide in fruit in combination with IR laser ablation and ESI-MS for quantitative analysis.
Eightfold 40–320 Gbit/s phase-coherent multiplexing and 320–40 Gbit/s demultiplexing using highly nonlinear fibers (2010)

We experimentally demonstrate 40-320Gbit/s phase-coherent multiplexing based on cross-phase modulation and subsequent 320-40Gbit/s demultiplexing using cross-phase-modulation-induced frequency shift in highly nonlinear fibers. An average penalty of approximately 7dB at a 10(-9) bit-error rate is observed after the nonlinear processes. We also show the generation of a phase-coherent 320GHz optical pulse train. A delay-line interferometer based on differential group delay is used to verify the phase coherence characteristic of the multiplexed 320Gbit/s signal and the generated 320GHz pulses.
Tonic and Phasic Alertness Training Enhances Executive Function, Working Memory, and Skill Acquisition in Older Adults (2015)

The ability to sustain attention gradually declines with age, exacerbating normal decays in performance across multiple cognitive domains. In addition, poor sustained attention may impair efficient learning of new information and skills. Previous studies have shown that it is possible to enhance sustained attention in patients with severely impaired abilities, such as hemispatial neglect and traumatic brain injury, and that this generalizes to improvements in spatial attention and more global cognitive improvements (DeGutis & Van Vleet, 2010; Van Vleet et al., 2014). However, it is unclear whether 1) sustained attention can be enhanced in less impaired, healthy aging individuals and 2) whether these sustained attention improvements can transfer to improvements in relevant outcomes such as executive functioning and visuospatial skill learning. In experiment 1 we sought to test, in older adults, whether tonic and phasic attention training (TAPAT) can improve sustained attention and if this transfers to improvements on validated neuropsychological tests of executive functioning. In experiment 2, we sought to replicate these effects and further examine whether TAPAT can enhance skill learning on a visuospatial divided attention task which has shown to be related to driving performance (useful field of view task, UFOV). The results demonstrate that, compared to active control training, TAPAT enhanced sustained attention and that this transferred to improved executive functions. We also found that TAPAT, compared to active control training, enhanced rates of learning on the UFOV task. This novel approach to enhance sustained attention may serve to facilitate greater benefit across a wide range of learning tasks. Meeting abstract presented at VSS 2015
Synthesis, Crystal Structure, and Magnetic Properties of ϵ‐InxFe2–xO3 Nanorod‐Shaped Magnets (2007)

Abstract A series of ϵ‐In x Fe 2– x O 3 nanorods are prepared by combining the reverse‐micelle and the sol–gel methods. Metal replacement was achieved in the region of 0 ≤ x ≤ 0.24. The crystal structures are orthorhombic structures (space group: Pna 2 1 ), which are pyroelectric with an electric polarization along the c axis. The transmission electron microscopy images show that the particle sizes are (80 ± 40) × (23 ± 5) nm ( x = 0), (65 ± 30) × (30 ± 10) nm ( x = 0.12), and (80 ± 40) × (35 ± 15) nm ( x = 0.24). The magnetization versus temperature curves of the samples with x = 0, x = 0.12, and x = 0.24 show spontaneous magnetization with Curie temperatures of 495 K, 456 K, and 414 K, respectively. Their coercive fields at 300 K are 20 kOe ( x = 0), 14 kOe ( x = 0.12), and 9 kOe ( x = 0.24). These samples show a spin reorientation with reorientation temperatures ( T p ) of 102 K ( x = 0), 149 K ( x = 0.12), and 180 K ( x = 0.24). In particular, the samples with x = 0.12 and x = 0.24 show antiferromagnetic behavior below T p . This series of ϵ‐In x Fe 2– x O 3 is the first example of a pyroelectric material that exhibits a phase transition between ferrimagnetism and antiferromagnetism.