gebhart/patrepeval huggingface dataset:
Facile Synthesis and Thermal Properties of Nanoencapsulated <i>n</i>-Dodecanol with SiO<sub>2</sub> Shell as Shape-Formed Thermal Energy Storage Material (2016)

A novel nanencapsulated phase change material (NEPCM) was fabricated via the self-assembly method with n-dodecanol as the core and SiO2 derived from sodium silicate as the shell. The as-prepared nanocapsules with different core/shell ratios were investigated systematically. Scanning electron microscopy and transmission electron microscopy photographs indicated that the products had a nearly spherical and compact surface with nanometer size. Fourier transform infrared spectroscopy and X-ray diffraction confirmed that SiO2 was successfully encapsulated upon n-dodecanol. Differential scanning calorimetry results showed that the NEPCMs exhibited similar phase change characteristics to pristine n-dodecanol, which melted at 21.03 °C with a latent heat of 116.7 J/g and solidified at 19.58 °C with a latent heat of 114.6 J/g. Thermogravimetric analysis and thermal cycle tests revealed that the nanocapsules had good thermal stability. In conclusion, the prepared nanocapsules have great potential for thermal energy storage and building energy conservation as a result of their facile synthesis process, low cost, and excellent thermal properties.
[Clinico-pathologic study of renal cell carcinoma]. (1992)

Renal cell carcinoma (RCC) is an uncommon tumour with high mortality mainly due to late diagnosis. The various morphological variables and the clinico-pathological stage, however, induce highly different evolutions. Awareness of these characteristics would be a significant part of deciding the most appropriate therapy for each case. The pathological anatomy of 130 renal cell carcinomas obtained through nephrectomy was reviewed. A follow-up of at least 5 years was done in 121 patients. Also, a survival study related to the various clinical and pathological parameters was carried out. A significantly lower survival rate was observed for solid tumours with spindle or giant cells and nuclear degrees superior to 2, over 10 mitosis in 10 fields and staging higher than II. A significant correlation was also found between number of mitosis and staging, presence of metastatic disease, survival interval, degree of tumoral necrosis, histological type, cell type and nuclear grade. Our results indicate that staging, histological type, cell type, microscopic vascular infiltration, nuclear grade and number of mitosis can be highly predictive of the evolution and prognosis of RCC patients.
Scanning Interferometric Apertureless Microscopy: Optical Imaging at 10 Angstrom Resolution (1995)

Interferometric near-field optical microscopy achieving a resolution of 10 angstroms is demonstrated. The scattered electric field variation caused by a vibrating probe tip in close proximity to a sample surface is measured by encoding it as a modulation in the optical phase of one arm of an interferometer. Unlike in regular near-field optical microscopes, where the contrast results from a weak source (or aperture) dipole interacting with the polarizability of the sample, the present form of imaging relies on a fundamentally different contrast mechanism: sensing the dipole-dipole coupling of two externally driven dipoles (the tip and sample dipoles) as their spacing is modulated.
The megakaryocyte platelet system and vascular disease (1994)

Platelets form a heterogeneous population of cells produced from the uniquely large polyploid cell found in the bone marrow, the megakaryocyte. The platelet megakaryocyte axis forms a dynamic equilibrium varying in normal biology and in disease. Prolonged platelet destruction leads to the production of large platelets from large, high ploidy megakaryocytes. In vivo and ex vivo studies show that such platelets have more haemostatic potential than smaller less dense platelets. The evidence suggesting that prothrombotic changes in the megakaryocyte platelet axis precede coronary artery thrombosis and the importance of platelet reactivity in atherosclerosis will be reviewed.
Derivative Spectroscopy (1968)

The technique of the derivative spectroscopy is discussed as an effective way to filter the unwanted contents in the source spectrum. The transfer function obtainable for the technique is derived in the theoretical analysis, and the advantages achievable by the technique are discussed in connection with this transfer function. Finally, the conditions and limits within which a good approximation to the mathematical derivative of the observable spectrum are given.
Reject analysis: its role in quality assurance. (1984)

A reject analysis has been undertaken for a 26 week period in the radiology department of an oncological centre. The overall reject and repeat rates are presented here, as well as those arising from individual examinations and X-ray rooms. The variations in reject rates for different examinations as a function of time are highlighted and the role of reject analysis in quality assurance is discussed.
Evidence for antimuscarinic acetylcholine receptor antibody-mediated secretory dysfunction in NOD mice (2000)

These findings define a clear role for the humoral immune response and the targeting of the cell surface M3 signal transduction receptor as primary events in the development of clinical symptoms of autoimmune exocrinopathy. Furthermore, the anti-M3 receptor activity may negatively affect the secretory response through perturbation of normal signal transduction events, leading to translocation of the epithelial cell water channel.
Volume dilatometry (1949)

The volume dilatometer, although inexpen sive and simple in construction and principle, is found to be a valuable research tool, no t only for obtaining dat a on volume coefficients of thermal expansion, but also for studying phase changes in solids and liquids. . The pr~p aration and operation of the volume dilatometer are described in detail. An Illustrative calculation is given using data obtained from volume-temperature measurem.ent s .on.a s~mple of butyl rubber from about -30 0 to + 90 0 C, using mercury as a confil1lng lIqUid III the dilatometer .
Desulfurization of Thiophenic Compounds by Ni(111):  Adsorption and Reactions of Thiophene, 3-Methylthiophene, and 2,5-Dimethylthiophene (1996)

The adsorption and reactivity of thiophene, 2,5-dimethylthiophene, and 3-methylthiophene on Ni(111) have been examined. The saturation coverages of the three molecules are similar, about 0.13 monolayer (ML), and in all cases alkenes are the major hydrocarbon products. On initially clean surfaces, decomposition to sulfur, carbon and hydrogen is the major pathway, but the selectivity to hydrocarbon production can be enhanced by a factor of about 3 by predosing the surface with hydrogen. Sulfur is easily removed from the ring, and C−S bond scission is complete by 150 K. The rate-limiting step in alkene formation is hydrogenation of a highly unsaturated hydrocarbon intermediate. The hydrocarbon intermediates formed are difficult to unambiguously identify but are most likely cyclic structures, retaining the C4 framework.
Mesenchymal Stem Cells as Treatment for Behavioral Deficits and Neuropathology in the 5xFAD Mouse Model of Alzheimer's Disease (2016)

Alzheimer's disease (AD) is characterized by a progressive loss of memory and other cognitive disturbances. The neuropathology of AD includes the major hallmarks of toxic amyloid-β oligomer accumulation and neurofibrillary tangles, as well as increased oxidative stress, cholinergic dysfunction, synapse loss, changes in endogenous neurotrophic factors, and overall degeneration of the brain. Adult mesenchymal stem cells (MSCs) offer the potential for a readily available treatment that would be long lasting, have low likelihood of rejection, and could target a variety of pathological deficits. MSCs have been shown to be effective in alleviating symptoms in some transgenic models of AD, but the optimal location for transplanting MSCs has yet to be determined. In the present study, the behavioral effects of transplantation of MSCs into the lateral ventricles, the hippocampus, or both of these regions were compared in the 5xFAD mouse model of AD. The results indicate that MSC transplants effectively reduce learning deficits in the 5xFAD mouse model and demonstrate a clear impact of MSCs on the levels of Aβ42 in the brains of 5xFAD mice. Overall, these findings support the hypothesis that MSCs may be a viable treatment for AD, especially when injected into the lateral ventricles.
Code compression (1997)

Current research in compiler optimization counts mainly CPU time and perhaps the first cache level or two. This view has been important but is becoming myopic, at least from a system-wide viewpoint, as the ratio of network and disk speeds to CPU speeds grows exponentially.For example, we have seen the CPU idle for most of the time during paging, so compressing pages can increase total performance even though the CPU must decompress or interpret the page contents. Another profile shows that many functions are called just once, so reduced paging could pay for their interpretation overhead.This paper describes:• Measurements that show how code compression can save space and total time in some important real-world scenarios.• A compressed executable representation that is roughly the same size as gzipped x86 programs and can be interpreted without decompression. It can also be compiled to high-quality machine code at 2.5 megabytes per second on a 120MHz Pentium processor• A compressed "wire" representation that must be decompressed before execution but is, for example, roughly 21% the size of SPARC code when compressing gcc.
The traveltime equation, tau-rho mapping and inversion of common midpoint data (1981)

Abstract Seismic traveltime data can be described in terms of instantaneous slope (dT/dX) and intercept time (tau ). With this parameterization, the most general form of the traveltime equation is developed and found to be valid for reflections and refractions, all source-receiver offsets, and all commonly used experimental geometries. For common source-receiver experiments, the instantaneous slope of the traveltime data represents the true horizontal ray parameter p, and the intercept time is the sum along the ray of thickness-vertical slowness products referenced to the fixed surface station. For common midpoint (CMP) experiments, we show that the instantaneous slope is the average slowness of upgoing and downgoing rays at the surface, and the intercept time is again the sum of thickness-vertical slowness products, but referenced to the common midpoint. This inherent averaging immediately explains the superiority of the CMP experiment in the presence of dip. In addition to providing a general traveltime equation, we find that tau -p parameterization reorganizes traveltime data in a way which greatly facilitates interpretation. For reflections, the tau -p trajectories are sums of ellipses and all turning rays (whether refracted or postcritically reflected) combine to form a well defined and easily identified trajectory. We present a method for deriving a velocity-depth function from this trajectory which is applicable to both refracted and reflected arrivals.
Distances between 3' ends of ribosomal ribonucleic acids reassembled into Escherichia coli ribosomes (1980)

The three ribonucleic acids (RNAs) from Escherichia coli ribosomes were isolated and then labeled at their 3' ends by oxidation with periodate followed by reaction with thiosemicarbazides of fluorescein or eosin. Ribosomal subunits reconstituted with the labeled RNAs were active for polyphenylalanine synthesis. The distances between the 3' ends of the RNAs in 70S ribosomes were estimated by nonradiative energy transfer from fluorescein to eosin. The percentage of energy transfer was calculated from the decrease in fluorescence lifetime of fluorescein in the quenched sample compared to the unquenched sample. Fluorescence lifetime was measured in real time by using a mode-locked laser for excitation and a high-speed electrostatic photomultiplier tube for detection of fluorescence. The distances between fluorophores attached to the 3' ends of 16S RNA and 5S RNA or 23S RNA were estimated to be about 55 and 71 A, respectively. The corresponding distance between the 5S RNA and 23S RNA was too large to be measured reliably with the available probes but was estimated to be greater than 65 A. Comparison of the quantum yields of the labeled RNAs free in solution and reconstituted into ribosomal subunits suggests that the 3' end of 16S RNA does not interact appreciably with other ribosomal components and may be in a relatively exposed position, whereas the 3' ends of the 5S RNA and 23S RNA may be buried in the 70S ribosomal subunit.
Improved adhesion in hybrid Si-polymer MEMS via micromechanical interlocking (2005)

A method for improving adhesion between polymer films on Si substrates is described involving mechanical interlocking. Isotropic reactive ion etching (RIE) is applied to form pits in the Si substrate which fill upon application of a polymer via spinning. After curing, interpenetrating polymer lobes form a robust bond with the Si substrate. Adhesion improvements over films on smooth substrates are demonstrated qualitatively through prolonged immersion in heated 40% potassium hydroxide (KOH) solution, and quantitatively through peel tests. Strips of SU-8 on smooth substrates separate completely within minutes of immersion in KOH, whereas mechanically interlocked strips remain attached throughout. Tests reveal significant improvements to peel resistance for strips with interpenetrating lobes, due to a combination of crack deflection and physical restraint at the bond interface. Surprisingly, lobes with a vertical profile offer better resistance to strip peeling compared with lobes having significant overhang. Stress concentrations at sharp bends in the latter raise local stresses to levels promoting failure in SU-8, limiting the nominal load-carrying capacity of the interpenetrating interface. For maximum peel resistance, the lobe profile needs to be optimized such that maximum pull-out stresses are close to the failure stress of SU-8.
Moving from the design of usable security technologies to the design of useful secure applications (2002)

Recent results from usability studies of security systems have shown that end-users find them difficult to adopt and use. In this paper we argue that improving the usability of security technology is only one part of the problem, and that what is missed is the need to design usable and useful systems that provide security to end-users in terms of the applications that they use and the tasks they want to achieve. We propose alternate ways of building and integrating security technologies into applications and usability methods for evaluating how successful our prototypes are. We believe that the end results of designing usable and useful (from the end-user perspective) systems will be secure applications which will reflect the needs of users who are increasingly using computers away from the office and in a wider variety of networked configurations.
Evidence for the presence of streptococcal-superantigen-neutralizing antibodies in normal polyspecific immunoglobulin G (1996)

Recently we demonstrated that normal polyspecific immunoglobulin given intravenously (IVIG) and plasma samples from patients treated with IVIG neutralize the mitogenic and cytokine-inducing activities of group A streptococcal (GAS) superantigens. Here we investigated whether this neutralizing activity is mediated by antibodies to these superantigens. IVIG and plasma samples collected from a patient with GAS necrotizing fasciitis post-IVIG infusions markedly inhibited the mitogenic activity elicited by the streptococcal pyrogenic exotoxins SpeB and SpeC, as well as by GAS culture supernatant. Immunoblot analysis showed marked increases in the levels of antibodies to SpeC and proteins in the GAS culture supernatant in post-IVIG over those of pre-IVIG plasma samples. Removal of antisuperantigen antibodies in IVIG by adsorption to SpeC- and GAS culture supernatant-coupled Sepharose markedly reduced the neutralizing ability of IVIG against respective stimuli. The neutralizing activity was totally recovered in the eluted antibodies. By contrast, although pre- and post-IVIG plasma samples contained antibodies to SpeA, these antibodies did not block the activity of this superantigen. Nonspecific immunomodulatory activity of IVIG was ruled out because neither the IVIG nor the affinity-purified antibodies significantly inhibited the response to the polyclonal T-cell mitogen phytohemagglutinin A. These data provide direct evidence that the neutralizing activity in IVIG, and in patient plasma samples following IVIG treatment is mediated by antibodies to superantigens and indicate that the quality rather than the quantity of these antibodies may be more clinically relevant.
Chemical Composition of Tipuana tipu, a Source for Tropical Honey Bee Products (2003)

Tipuana tipu (Benth.) Kuntze is a tree from the leguminosae family (Papilionoideae) indigenous in Argentina and extensively used in urbanism, mainly in Southern Brazil. The epicuticular waxes of leaves and branch, and flower surface were studied by high temperature high resolution gas chromatography. Several compounds were characterized, among which the aliphatic alcohols were predominant in branch, leaves and receptacle. Alkanes were predominant only in the petals and the aliphatic acids were predominant in stamen. In branches and leaf epicuticular surfaces, six long chain wax esters series were characterized, as well as lupeol and b-amyrin hexadecanoates.
Hopping Conductivity in Granular Metals (1973)

We present evidence that in granular metals the observed temperature dependence of the low-field conductivity, $\mathrm{exp}(\ensuremath{-}\frac{b}{{T}^{\ensuremath{\alpha}}})$ with $\ensuremath{\alpha}=\frac{1}{2}$, can be ascribed to a relationship $s{E}_{c}=\mathrm{const}$ between $s$, the separation of neighboring metal grains, and ${E}_{c}$, the electrostatic energy required to create a positive-negative charged pair of grains. This relationship results from simple considerations of the structure of granular metals. The predictions of the theory, for both the high- and the low-field electrical conductivity, are in excellent accord with experimental results in granular Ni-Si${\mathrm{O}}_{2}$ films.
Electrochemical fabrication of conducting polymer nanowires in an integrated microfluidic system (2006)

In this paper, we introduce a new approach for the in situ electrochemical fabrication of an individually addressable array of conducting polymer nanowires (CPNWs) positioned within an integrated microfluidic device and also demonstrate that such an integrated device can be used as a chemical sensor immediately after its construction.
5-Hydroxytryptamine Modulates Migration, Cytokine and Chemokine Release and T-Cell Priming Capacity of Dendritic Cells In Vitro and In Vivo (2009)

Beside its well described role in the central and peripheral nervous system 5-hydroxytryptamine (5-HT), commonly known as serotonin, is also a potent immuno-modulator. Serotoninergic receptors (5-HTR) are expressed by a broad range of inflammatory cell types, including dendritic cells (DCs). In this study, we aimed to further characterize the immuno-biological properties of serotoninergic receptors on human monocyte-derived DCs. 5-HT was able to induce oriented migration in immature but not in LPS-matured DCs via activation of 5-HTR(1) and 5-HTR(2) receptor subtypes. Accordingly, 5-HT also increased migration of pulmonary DCs to draining lymph nodes in vivo. By binding to 5-HTR(3), 5-HTR(4) and 5-HTR(7) receptors, 5-HT up-regulated production of the pro-inflammatory cytokine IL-6. Additionally, 5-HT influenced chemokine release by human monocyte-derived DCs: production of the potent Th1 chemoattractant IP-10/CXCL10 was inhibited in mature DCs, whereas CCL22/MDC secretion was up-regulated in both immature and mature DCs. Furthermore, DCs matured in the presence of 5-HT switched to a high IL-10 and low IL-12p70 secreting phenotype. Consistently, 5-HT favoured the outcome of a Th2 immune response both in vitro and in vivo. In summary, our study shows that 5-HT is a potent regulator of human dendritic cell function, and that targeting serotoninergic receptors might be a promising approach for the treatment of inflammatory disorders.
Simple Triplet Loss Based on Intra/Inter-Class Metric Learning for Face Verification (2017)

International audience
Computer-Assisted Measurement and Identification of Honey Bees (Hymenoptera: Apidae) (1982)

Journal Article Computer-Assisted Measurement and Identification of Honey Bees (Hymenoptera: Apidae) Get access Howell V. Daly, Howell V. Daly Department of Entomological Sciences, University of California, Berkeley, California 94720 Search for other works by this author on: Oxford Academic Google Scholar Kim Hoelmer, Kim Hoelmer Department of Entomological Sciences, University of California, Berkeley, California 94720 Search for other works by this author on: Oxford Academic Google Scholar Penelope Norman, Penelope Norman Department of Entomological Sciences, University of California, Berkeley, California 94720 Search for other works by this author on: Oxford Academic Google Scholar Tracy Allen Tracy Allen Department of Entomological Sciences, University of California, Berkeley, California 94720 Search for other works by this author on: Oxford Academic Google Scholar Annals of the Entomological Society of America, Volume 75, Issue 6, 15 November 1982, Pages 591–594, https://doi.org/10.1093/aesa/75.6.591 Published: 15 November 1982 Article history Received: 18 January 1982 Published: 15 November 1982
A world unsafe for democracy? China and the shaping of global order (2021)

Much recent analysis of a resurgent and influential China has focused on the country�s present and likely future role in shaping global order. A significant part of this deliberation has been built around two propositions: whether Beijing�s intentions are predominantly defensive � it seeks only a �world safe for autocracy� � or are offensive � it seeks to diminish the space that is needed for liberal democracies to thrive. This debate is in danger of becoming far too polarised. For those taking the �defensive China� route, it is important to reflect that Beijing seeks not just passive protection from harm, but also active approval of its politico-economic system, and that activism may have ideational and material consequences. For those painting a more offensive posture on China�s part, there are also examples of Beijing having moderated its position when there is resistance, and having accepted the need to compromise to gain external validation. Any investigation of China�s capacity to shape global order requires considerably higher levels of attention not only to the determination of Chinese strategic intentions, but also to how those with whom China interacts are responding to its policy positions.