gebhart/patrepeval huggingface dataset:
Low Power Bistable-Body Tunnel SRAM (2022)

A bistable-body tunnel SRAM is proposed and validated using simulations. This cell, using one transistor and two tunnel diodes, is a high speed, low power static memory cell, offering over four orders of magnitude reduction in static power compared to 6T SRAM at the 32 nm technology node. The speed of the cell is comparable to the 6T SRAM. A layout with cell area equal to 48 F2 is shown. A two-transistor based negative-differential -resistance element is analyzed as an alternative to tunnel diode in bistable-body Tunnel SRAM. The peak to valley ratio of 2000 is obtained for the two-transistor based NDR element at the 32 nm transistor technology node.
Workshop on interacting with smart objects (2011)

The number of smart objects in our everyday life is steadily increasing. In this workshop we discuss how the interaction with these smart objects should be designed from various perspectives.
Viscous flow sensing using micro-beam arrays (2019)

Thin, compliant fibers have been shown to provide a remarkably accurate means of detecting sound [Zhou et al., “Sensing fluctuating airflow with spider silk,” Proc. Natil. Acad. Sci., 201710559 (2017) ]. The present study extends these results by examining the forces due to air-borne sound on a periodic array of infinitely long and thin micro-beams having rectangular cross section. Results obtained using both the Finite Element Method and analytical solutions to Stokes’ equations are shown to be in excellent agreement. It is found that viscous forces are dominant when the width of the beams is less than 10 μm. Unlike typical MEMS resonators, which perform best in the absence of air, the dominance of viscous damping forces is desirable in directional acoustic flow sensors using these micro-beams. Furthermore, the frequency independent characteristic of these forces promises a flat response across a wide range of frequencies. It is predicted that smaller beams with wider gaps provide better sensitivity. For beams that are sufficiently thin, their thickness is found to have minimal influence on their performance.
A carbon-13 CP/MAS NMR study of a double tert-butyl group rotation in the solid state using T1.rho. and line shape measurements (1993)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTA carbon-13 CP/MAS NMR study of a double tert-butyl group rotation in the solid state using T1.rho. and line shape measurementsFrank G. Riddell, S. Arumugam, Kenneth D. M. Harris, Martin Rogerson, and John H. StrangeCite this: J. Am. Chem. Soc. 1993, 115, 5, 1881–1885Publication Date (Print):March 1, 1993Publication History Published online1 May 2002Published inissue 1 March 1993https://pubs.acs.org/doi/10.1021/ja00058a037https://doi.org/10.1021/ja00058a037research-articleACS PublicationsRequest reuse permissionsArticle Views310Altmetric-Citations32LEARN 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
ChemInform Abstract: A Total Synthesis of Actinobolin via the Intermolecular Diels‐Alder Reaction of a Threonine Derived Diene. (1987)

Abstract The threonine derived diene (I) and methyl propiolate (II) react to give the Diels‐Alder adducts (IIIa) and (IIIb).
ChemInform Abstract: Organic Carbonates (1996)

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.
Muscle RING Finger-1 Promotes a Maladaptive Phenotype in Chronic Hypoxia-Induced Right Ventricular Remodeling (2020)

Exposure to chronic hypoxia (CH) induces elevated pulmonary artery pressure/resistance, leading to an eventual maladaptive right ventricular hypertrophy (RVH). Muscle RING finger-1 (MuRF1) is a muscle-specific ubiquitin ligase that mediates myocyte atrophy and has been shown to play a role in left ventricular hypertrophy and altered cardiac bioenergetics in pressure overloaded hearts. However, little is known about the contribution of MuRF1 impacting RVH in the setting of CH. Therefore, we hypothesized that MuRF1 deletion would enhance RVH compared to their wild-type littermates, while cardiac-specific overexpression would reduce hypertrophy following CH-induced pulmonary hypertension. We assessed right ventricular systolic pressure (RVSP), right ventricle to left ventricle plus septal weight ratio (RV/LV+S) and hematocrit (Hct) following a 3-wk isobaric CH exposure. Additionally, we conducted dual-isotope SPECT/CT imaging with cardiac function agent 201Tl-chloride and cell death agent 99mTc-annexin V. Predictably, CH induced pulmonary hypertension, measured by increased RVSP, RV/LV+S and Hct in WT mice compared to normoxic WT mice. Normoxic WT and MuRF1-null mice exhibited no significant differences in RVSP, RV/LV+S or Hct. CH-induced increases in RVSP were also similar between WT and MuRF1-null mice; however, RV/LV+S and Hct were significantly elevated in CH-exposed MuRF1-null mice compared to WT. In cardiac-specific MuRF1 overexpressing mice, RV/LV+S increased significantly due to CH exposure, even greater than in WT mice. This remodeling appeared eccentric, maladaptive and led to reduced systemic perfusion. In conclusion, these results are consistent with an atrophic role for MuRF1 regulating the magnitude of right ventricular hypertrophy following CH-induction of pulmonary hypertension.
Pitch-Induced Illusory Percepts of Time (2022)

Past research suggests that pitch height can influence the perceived tempo of speech and music, such that higher-pitched signals seem faster than lower-pitched ones. However, previous studies have only analyzed stimuli separated by up to two octaves. To investigate whether this higher-equals-faster illusion generalizes across the wider range of human hearing, we conducted a series of five experiments. We asked participants to compare the tempo of repeating tones from six different octaves and with fifteen different interonset intervals to a metronomic standard tempo. In Experiments 1–3, we observed an inverted U-shaped effect of pitch on perceived tempo, with the perceived tempo of piano tones peaking between A4 (440 Hz) and A5 (880 Hz) and decreasing at lower and higher frequencies. This bias was consistent across base tempos and was not attenuated by synchronous tapping with the repeating tones. Experiment 4 additionally tested synthetic complex tones to verify that this nonlinearity generalizes beyond the piano timbre, and that it was not related to low-pitched mechanical noise present in our piano tones. Experiment 5 revealed that the decrease in perceived tempo at extremely high octaves can be abolished by exposing participants to only high-pitched tones. Together, our results suggest that perceived tempo depends more on relative pitch within a context than on absolute pitch, and that tempo biases may invert or taper off beyond a two-octave range. We relate this context-dependence to human vocal ranges and propose that illusory tempo effects are strongest within pitch ranges consistent with human vocalization.
CD84 is a survival receptor for chronic lymphocytic leukemia cells (P2044) (2013)

Abstract Chronic lymphocytic leukemia (CLL) is characterized by the accumulation of CD5+ B lymphocytes in peripheral blood, lymphoid organs and bone marrow (BM). The main feature of the disease is accumulation of the malignant cells due to decreased apoptosis. CD84 belongs to the Signaling Lymphocyte Activating Molecule (SLAM) family of immunoreceptors, and has an unknown function in CLL cells. Here, we show that the expression of CD84 is significantly elevated from the early stages of the disease, and is regulated by macrophage migration inhibitory factor (MIF) and its receptor, CD74. Activation of cell surface CD84 initiates a signaling cascade that enhances CLL cell survival. Both downmodulation of CD84 expression and its immune-mediated blockade induce cell death in vitro and in vivo. In addition, analysis of samples derived from an on-going clinical trial, in which human subjects were treated with humanized anti-CD74 (milatuzumab), shows a decrease in CD84 mRNA and protein levels in milatuzumab-treated cells. This downregulation was correlated with reduction of Bcl-2 and Mcl-1 expression. Thus, our data show that overexpression of CD84 in CLL is an important survival mechanism that appears to be an early event in the pathogenesis of the disease. These findings suggest novel therapeutic strategies based on the blockade of this CD84-dependent survival pathway.
Rankings of Research-Active Departments (1999)

One might expect that the well-publicized, extremely competitive nature of the job market for tenure-track faculty positions recently would have an interesting side effect: with an oversupply of qualified applicants for all open positions, the relative quality of faculty across different institutions should be evening out. To study this possibility, I have analyzed the National Research Council rankings of the home departments of U.S. authors in Science and Nature for 1999 and 1989 (volumes 244 and 284 in Science and 339 and 399 in Nature) (1). It would be interesting to extend the study to international authors, but unfortunately a unified international ranking of departments is not available.
Air stable core–shell multilayer metallic nanoparticles synthesized by RAPET: fabrication, characterization and suggested applications (2012)

We have developed a novel synthesis of carbon coated Cu@Ag and Ag@Cu core–shell nanoparticles by a rapid, cheap, solvent-less and straightforward method of fabrication. The technique by which these composites are prepared is called RAPET (Reaction under Autogenic Pressure at Elevated Temperatures). The X-ray diffraction measurements confirm the presence of two separated phases – silver and copper – and negate the possibility of alloy formation. Elemental mapping obtained by electron energy-loss spectroscopy (EELS) and line-scan analysis confirm the core–shell structure. Colloidal suspensions of Cu@Ag@C nanostructures were prepared and their stability was examined by dynamic light scattering (DLS) measurements. The mechanism of formation of the multilayer nanostructures is discussed here.
Predicting image influence on visual saliency distribution: the focal and ambient dichotomy (2020)

The computational modelling of visual attention relies entirely on visual fixations that are collected during eye-tracking experiments. Although all fixations are assumed to follow the same attention paradigm, some studies suggest the existence of two visual processing modes, called ambient and focal. In this paper, we present the high discrepancy between focal and ambient saliency maps and propose an automatic method for inferring the degree of focalness of an image. This method opens new avenues for the computational modelling of saliency models and their benchmarking.
Geometric isomers of 2-naphthylphenylcarbene: A revised assignment (1996)

It is reported that earlier assignments of 2-naphthylphenylcarbene were erroneous and that ESR data support the same assignment as quantum mechanical calculations. An unambiguous nomenclature for geometric isomers of carbenes is proposed.
Investigation into the Mechanism and Causes of Gassing in Li4Ti5O12 Based/ LiMn2O4 Li-Ion Battery Systems (2017)

Li 4 Ti 5 O 12 (LTO) as an anode material for lithium ion batteries has garnered attention as a possible alternative to graphite anodes in the hybrid and electric vehicle auto industry due to its increased safety properties, high rate capabilities, and exceptional cycling stability. The main concern arises in that cells using LTO anodes produce gas especially at elevated temperatures leading to swelling and hampered performance. Many mechanisms have been proposed as possible sources of the gas evolution such as breakdown of electrolyte salts, water, and LTO surface reactions, but no direct cause or solution has been agreed upon. In the open literature, efforts have been made to combat this with either coating on LTO materials 2,4 or electrolyte technology without a full understanding of how the material behaves in the cell. In this work, we take the investigation further to pinpoint the causes and mechanisms of the gas evolution in LTO based cells through gas analysis, electrochemical performance, and surface analysis in multilayer pouch cells and full cell coin cells. These results will be discussed in detail with the intention of shedding light on the gas evolution issue with the hope of leading to optimized solutions to resolve the gassing issue. References Y. He, B. Li, M. Liu, C. Zhang, W. Lv, C. Yang, J. Li, H. Du, B. Zhang, Q. Yang, J. Kim, F. Kang, Sci. Rep . 2, 913 (2012). L. Wang, K. Nakura, M. Imazaki, N. Kakizaki, K. Ariyoshi, and T. Ohzuku, J. Electrochem. Soc ., 159 , A1710 (2012). J. Liu, P. Bian, J. Li, W. Ji, H. Hao, A. Yu, J. Pow. Sour. , 286 (2015) W. Li, X. Li, M. Chen, Z. Xie, J. Zhang, S. Dong, M. Qu, Elect. Acta. , 139 (2014) J. Gao, B.Gong, Q. Zhang, G. Wang, Y. Dai, W. Fan, Ionics , 21 (2015) J. Liu, P. Bian, J. Li, W. Ji, H. Hao, A. Yu, J. Pow. Sour. , 286 (2015)
Impact of early postweaning growth rate as affected by diet complexity and space allocation on subsequent growth performance of pigsin a wean-to-finish production system1 (2003)

The objective was to evaluate the effect of restricted early postweaning growth rate due to diet complexity, pen space, or both on subsequent growth to market in a wean-to-finish system. Pigs (n = 1,728) were used in a randomized block design with a 2 x 2 factorial arrangement of treatments: 1) diet complexity (Complex vs Simple) and 2) space allocation (Unrestricted vs Restricted). Treatments were imposed for the first 8 wk after weaning (period 1) and growth was measured from weaning (5.0 +/- 0.01 kg body weight; 15 d of age) to the end of wk 23 postweaning. The Simple diet was based on corn-soybean meal with minimal inclusion of milk products, processed cereals, and animal protein-based ingredients compared to the Complex diet. Floor and feeder-trough spaces were 0.63 m2 and 4 cm and 0.21 m2 and 2 cm per pig for Unrestricted and Restricted space treatments, respectively. From the end of wk 8 to end of wk 23 (period 2), pigs on all treatments had the same floor and feeder spaces and were fed common diets. There was no interaction (P > 0.05) between diet and space treatments. In period 1, Simple diets resulted in similar average daily feed intake (ADFI; 639 vs 650 +/- 5.4 g; P > 0.05), but lower average daily gain (ADG; 408 vs 424 +/- 3.8 g; P < 0.01) and gain:feed ratio (0.64 vs 0.65 +/- 0.002; P < 0.001), and lighter body weight (2.8%; P < 0.01) compared to the Complex diets. In period 2, growth was not affected (P > 0.05) by previous diet complexity, and pig body weight was similar (114.4 vs 114.4 +/- 0.37 kg, P > 0.05) at the end of wk 23. In period 1, pigs with Restricted space had lower ADG (398 vs 434 +/- 3.8 g; P < 0.001), ADFI (621 vs 668 +/- 5.4 g; P < 0.001), and gain:feed ratio (0.64 vs 0.65 +/- 0.002; P < 0.01), and were lighter at the end of wk 8 (6.5%; P < 0.001) than those with Unrestricted space. However, in period 2, pigs with Restricted space had higher (P < 0.01) ADG (3%), ADFI (2%), and gain:feed ratio (3%) than those with Unrestricted space, and body weight was similar (114.5 vs 114.3 +/- 0.37 kg; P > 0.05) at end of wk 23. Carcass backfat and loin-eye depth at market body weight were influenced by neither diet nor space treatment. Using a simple diet program and restricted space allowance immediately postweaning resulted in a lower early growth rate, but had no impact on pig body weight or carcass measures at market.
Design of robust 2,2′-bipyridine ligand linkers for the stable immobilization of molecular catalysts on silicon(111) surfaces (2021)

The attachment of the 2,2'-bipyridine (bpy) moieties to the surface of planar silicon(111) (photo)electrodes was investigated using ab initio simulations performed on a new cluster model for methyl-terminated silicon. Density functional theory (B3LYP) with implicit solvation techniques indicated that adventitious chlorine atoms, when present in the organic linker backbone, led to instability at very negative potentials of the surface-modified electrode. In prior experimental work, chlorine atoms were present as a trace surface impurity due to required surface processing chemistry, and thus could plausibly result in the observed surface instability of the linker. Free energy calculations for the Cl-atom release process with model silyl-linker constructs revealed a modest barrier (14.9 kcal mol-1) that decreased as the electrode potential became more negative. A small library of new bpy-derived structures has additionally been explored computationally to identify strategies that could minimize chlorine-induced linker instability. Structures with fluorine substituents are predicted to be more stable than their chlorine analogues, whereas fully non-halogenated structures are predicted to exhibit the highest stability. The behavior of a hydrogen-evolving molecular catalyst Cp*Rh(bpy) (Cp* = pentamethylcyclopentadienyl) immobilized on a silicon(111) cluster was explored theoretically to evaluate differences between the homogeneous and surface-attached behavior of this species in a tautomerization reaction observed under reductive conditions for catalytic H2 evolution. The calculated free energy difference between the tautomers is small, hence the results suggest that use of reductively stable linkers can enable robust attachment of catalysts while maintaining chemical behavior on the electrode similar to that exhibited in homogeneous solution.
Supplementary Figure 4 from MYC Activity Mitigates Response to Rapamycin in Prostate Cancer through Eukaryotic Initiation Factor 4E–Binding Protein 1–Mediated Inhibition of Autophagy (2023)

Supplementary Figure 4 from MYC Activity Mitigates Response to Rapamycin in Prostate Cancer through Eukaryotic Initiation Factor 4E–Binding Protein 1–Mediated Inhibition of Autophagy
Complex field imaging for diffraction tomography (2011)

We present a technique to reconstruct 3D refractive index distribution of cells using Digital Holographic Microscopy. Diffraction tomography is performed by two-axes rotation of the sample and aberrations corrected imaging with high numerical aperture.
A CMOS-Based Energy Harvesting Approach for Laterally-Arrayed Multi-Bandgap Concentrated Photovoltaic Systems (2019)

This paper presents an energy harvesting approach for a concentrated photovoltaics (CPV) system based on cell-block-level integrated CMOS converters. The CPV system, built upon the Laterally-Arrayed Multi-Bandgap (LAMB) cell structure, is a potentially higher-efficiency and lower-cost alternative to traditional tandem-based systems. The cells within a sub-module block are connected for approximate voltage matching, and a CMOS-based multi-input single-output (MISO) buck converter harvests and combines the energy while performing maximum power point tracking (MPPT) locally. First, a comparison of modeled performances achievable with traditional tandem CPV and LAMB CPV with a MISO converter is presented using day-long outdoor measured solar spectrum. The model predicts on average >19% more energy can be extracted from LAMB modules on a typical day. Then, a prototype miniaturized MISO dc-dc converter operating at 10MHz is developed in a 130nm CMOS process. For 45-160mW power levels, the prototype converter achieves >92% nominal and >95% peak efficiency in a small form factor designed to fit within available space in a LAMB PV cell block. The results demonstrate the potential of the LAMB CPV architecture for enhanced solar energy capture.
Tetrafluorodipyridinegermanium, [GeF4(C5H5N)2] (2002)

The molecular title compound was solvothermally synthesized at 373 K and crystallized in the triclinic system, with space group P\overline 1. The Ge(IV) atom lies on an inversion center and is coordinated by four fluoride anions and two pyridine mol­ecules. Owing to the non-bridging nature of the fluoride anions, this material forms a molecular solid with close packing.
Miscibility behaviour of blends of a thermoplastic polyester polyurethane with vinyl polymers (1999)

Abstract A method based on the intrinsic viscosities of transfer has been used to predict miscibility of polymer blends. This method has been applied to study the change in the phase behaviour of a microphase separated polyester polyurethane (PSPU) on blending with polyvinyl chloride (PVC), polyvinyl acetate (PVAc) and a vinyl chloride‐vinyl acetate copolymer (VCVAc). The PVC/PSPU blends are found to exhibit complete miscibility over the entire composition range. PVAc/PSPU blends show immiscibility while VCVAc/PSPU blends show partial miscibility. Thermal analysis and scanning electron microscopic studies of the blend films have confirmed the results evaluated on the basis of the viscosity method.
Synthesis and crystal structures of bis(imidazolidine-2-thione-κS)bis(thiocyanato-κS)mercury(II) and bis(cyanido)bis(μ2 -imidazolidine-2-thione-κS)mercury(II).Hg(CN)2 (2017)

Abstract Two mercury(II) complexes containing imidazolidine-2-thione (Imt) and thiocyanate or cyanide ligands, [Hg(Imt) 2 (SCN) 2 ] ( 1 ) and [Hg(Imt) 2 (CN) 2 ] . Hg(CN) 2 ( 2 ), have been prepared and characterized by IR and NMR spectroscopy and X-ray crystallography. In compound 1 , the mercury atom is located on a two-fold rotation axis and is coordinated to two thione sulfur atoms of imidazolidine-2-thione (Imt) and to two sulfur atoms of thiocyanate in a distorted tetrahedral mode with the S-Hg-S bond angles in the range of 98.96(3)–148.65(6)°. In 2 , the mercury atom is hexa-coordinated having a distorted octahedral geometry composed of two cyanide C atoms [Hg-C=2.055(5) Å] and four weakly bound thione S atoms of imidazolidine-2-thione (Imt) [Hg-S=3.1301(13) and 3.1280(13) Å]. One free Hg(CN) 2 molecule is also present in the crystal. In both complexes, the molecular structure is stabilized by N-H…N and N-H…S hydrogen bonding interactions.
Determination of the (100) InAs/GaSb heterojunction valence-band discontinuity by x-ray photoemission core level spectroscopy (1987)

The valence-band discontinuity ΔEv has been determined for the (100) InAs/GaSb system by x-ray photoemission core level spectroscopy. For 20 Å of InAs on GaSb we find that ΔEv=0.53 eV. The reverse structure, consisting of a 20-Å layer of GaSb on InAs, gave a measured value of ΔEv=0.48 eV. Since the difference in these two values lies within our experimental uncertainty, we report an average offset of 0.51±0.1 eV. The large value of the valence-band discontinuity in this system shows the band lineup to be of the broken gap variety with the InAs conduction-band energy lying below that of the GaSb valence band. This result is in good agreement with theoretical predictions.
Transgenic algae engineered for higher performance (2023)

The present disclosure relates to transgenic algae having increased growth characteristics, and methods of increasing growth characteristics of algae. In particular, the disclosure relates to transgenic algae comprising a glutamine phenylpyruvate transaminase transgene and to transgenic algae comprising a glutamine phenylpyruvate transaminase transgene and a glutamine synthetase.