gebhart/patrepeval huggingface dataset:
Recovery and Post-Thaw Assessment of Human Umbilical Cord Blood Cryopreserved as Quality Control Segments and Bulk Samples (2019)

Quality control (QC) segments conjoined to a bulk sample container are used to evaluate the viability and quality of cryopreserved umbilical cord blood (UCB). Such QC segments are typically attached lengths of sealed tubing that are cooled concurrently with the bulk sample, both containing material from the same donor. QC segments are thawed independently of the bulk sample to assess the quality of the cryopreserved product. In current practice, there is typically post-thaw variation between the QC segment and the bulk sample which if suggestive of inadequate performance, could lead to material being needlessly discarded. In this study, these performance differences were quantified. Two cooling protocols in common use, 1 with and 1 without a "plunge" step to induce ice nucleation, gave equivalent results that maintained the QC segment versus bulk sample differences. Ice nucleated at significantly lower temperatures in the QC segments compared with the bulk samples, a consequence of their lower volume, thereby enhancing damaging osmotic stress. A reduction in total viable cells of approximately 10% was recorded in the QC segments compared with comparable bulk samples. It has been shown that CD45<sup>+</sup> cells are more adversely impacted by this lower ice nucleation temperature than CD34<sup>+</sup> cells, which can result in altered composition of the post-thaw cell population.
Floating Catalyst Chemical Vapor Deposition Patterning Nitrogen‐Doped Single‐Walled Carbon Nanotubes for Shape Tailorable and Flexible Micro‐Supercapacitors (2023)

Abstract Micro‐supercapacitors (MSCs) as high‐power density energy storage units are designed to meet the booming development of flexible electronics, requiring simple and fast fabrication technology. Herein, a fast and direct solvent‐free patterning method is reported to fabricate shape‐tailorable and flexible MSCs by floating catalyst chemical vapor deposition (FCCVD). The nitrogen‐doped single‐walled carbon nanotubes (N‐SWCNTs) are directly deposited on a patterned filter by FCCVD with designable patterns and facilely dry‐transferred on versatile substrates. The obtained MSCs deliver an excellent areal capacitance of 3.6 mF cm −2 and volumetric capacitance of 98.6 F cm −3 at a scan rate of 5 mV s −1 along with excellent long‐term cycle stability over 125 000 circles. Furthermore, the MSCs show good performance uniformity, which can be readily integrated via connection in parallel or series to deliver a stable high voltage (4 V with five serially connected devices) and large capacitance (5.1 mF with five parallel devices) at a scan rate of 100 mV s −1 , enabling powering the light emitting displays. Therefore, this method blazes the trail of directly preparing flexible, shape‐customizable, and high‐performance MSCs.
Hypoxia-Selective Antitumor Agents. 11. Chlorambucil N-Oxide: A Reappraisal of Its Synthesis, Stability, and Selective Toxicity for Hypoxic Cells (1995)

The potential hypoxia-selective cytotoxin 4-[4'-[N,N-bis(2"-chloroethyl)amino]phenyl]butanoic acid N-oxide (chlorambucil N-oxide, 4) was synthesized and characterized as its hydrochloride salt. This compound was shown to be unstable, decomposing in some organic solvents to the hydroxylamine 4-[4'-[N-(2"-chloroethoxy)-N-(2"-chloroethyl)amino]phenyl]butanoic acid (11) by a mechanism previously demonstrated for aliphatic mustard N-oxides and under aqueous conditions to a more complex mixture, of which the predominant components were the monochloroethyl derivative 7 and formaldehyde. Comparison of NMR spectra showed that a recent published synthesis of 4 in fact resulted in the rearrangement product 11, indicating that recent reported investigations of the hypoxia-selective cytotoxicity and metabolism of chlorambucil N-oxide have examined this rearrangement product rather than 4. In a clonogenic assay, 4 was less cytotoxic against AA8 cells than was chlorambucil, but the effect of oxygen on cytotoxicity was no greater than for chlorambucil itself.
THE DOMAIN STRUCTURE AND ETCHING OF FERROELECTRIC LITHIUM NIOBATE (1965)

Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Icon Share Twitter Facebook Reddit LinkedIn Tools Icon Tools Reprints and Permissions Cite Icon Cite Search Site Citation K. Nassau, H. J. Levinstein, G. M. Loiacono; THE DOMAIN STRUCTURE AND ETCHING OF FERROELECTRIC LITHIUM NIOBATE. Appl. Phys. Lett. 1 June 1965; 6 (11): 228–229. https://doi.org/10.1063/1.1754147 Download citation file: Ris (Zotero) Reference Manager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentAIP Publishing PortfolioApplied Physics Letters Search Advanced Search |Citation Search
Diffusion soldering for automotive power MOSFETs offers the first 100% lead free die attach (2011)

Every year, end of life vehicles generate between 8 and 9 million tons of waste. In the paper the first automotive released lead free power MOSFET with diffusion soldering die attach in a TO package will be introduced.
Fresh concrete and its significance for sustainability (2012)

The push for sustainability initiatives in the construction field has been spearheaded by the green building movement. However, cement-based products and concrete are used in a variety of places, and not just buildings. While much effort on the sustainability of cement and concrete industry has been focused on cement production and the hardened state concrete – the fresh state performance and its role in sustainability has often been overlooked. Similar to hardened state concrete properties, understanding the microstructure of the fresh state concrete can provide the direction for tailoring the fresh state properties to improve the quality control, and thus the sustainability of concrete. This paper seeks to provide context for users of cement-based products to understand how the fresh state properties of concrete can be leveraged so that the quality control of concrete can be improved. Concepts such as flocculation, rheology, structural buildup, and formwork pressure will be discussed. The concepts discussed in this paper can be applied to various applications, from building to pavements to bridges to dams.
[Which coronary investigation should be performed in patients with peripheral arterial diseases?]. (1991)

In the context of peripheral vascular disease, the clinical history provides a means of evaluating coronary risk. The key features are: age, previous myocardial infarction especially when recent (under 6 months), anginal pain, smoking, diabetes and ventricular arrhythmias. Treadmill testing, often limited by symptoms of claudication, may reveal severe coronary ischemia and thereby the patients at very high risk. Upper limb exercise stress testing gives results similar to standard protocols of non-atherosclerotic patients when correctly performed and a reliable detection and evaluation of coronary lesions. Thallium dipyridamol myocardial scintigraphy is a very useful diagnostic method but requires special radionuclide facilities. This technique demonstrates the site of ischemia. Coronary angiography should be reserved for special cases because the risks of the procedure are always greater in patients with peripheral vascular disease.
A note on polarization martingales (2014)

Polarization results rely on martingales of mutual information and entropy functions. In this note an alternative formulation is considered where martingales are constructed on sample functions of the entropy function.
A low cost multimedia tool for telemedicine network rapid design (2002)

In a hospital, the improvement of patient care requires the use of reliable (fault tolerant) and multimedia communication technologies between the patient's bed and the nurse's room. Today's solutions are inflexible or expensive. To answer these needs, we propose MediaFlow, a flexible inexpensive solution based on a versatile software/hardware tool.
Who Wrote the 15th Book of Oz? An Application of Multivariate Analysis to Authorship Attribution (2003)

(2003). Who Wrote the 15th Book of Oz? An Application of Multivariate Analysis to Authorship Attribution. CHANCE: Vol. 16, No. 2, pp. 9-17.
CEBAF Distributed Data Acquisition System (2006)

There are thousands of signals distributed throughout Jefferson Lab’s Continuous Electron Beam Accelerator Facility (CEBAF) that are useful for troubleshooting and identifying instabilities. Many of these signals are only available locally or monitored by systems with small bandwidths that cannot identify fast transients. The Distributed Data Acquisition (Dist DAQ) system will sample and record these signals simultaneously at rates up to 40 Msps. Its primary function will be to provide waveform records from signals throughout CEBAF to the Experimental Physics and Industrial Control System (EPICS). The waveforms will be collected after the occurrence of an event trigger. These triggers will be derived from signals such as periodic timers or accelerator faults. The waveform data can then be processed to quickly identify beam transport issues, thus reducing down time and increasing CEBAF performance. The Dist DAQ system will be comprised of multiple standalone chassis distributed throughout CEBAF. They will be interconnected via a fiber optic network to facilitate the global triggering of events. All of the chassis will also be connected directly to the CEBAF Ethernet and run EPICS locally. This allows for more flexibility than the typical configuration of a single board computer and other custom printed circuit boards (PCB) installed in a card cage.
Preparation and Properties of Nano-Hydroxyapatite Modified Nylon Composites (2009)

To enhance the mechanical property and the bioactivity of composites, nano-hydroxyapatite (n-HA) modified monomer casting nylon-6 (n-HA/N) composites were prepared by in situ polymerization. During the synthesis of n-HA/N composite, the n-HA and caprolactam were mixed, melt and placed in the field of ultrasonic radiation. The differences between composite with ultrasonic and without ultrasonic were investigated. The tensile strength and the viscosity average molecular weight of the nylon matrix were measured. The results show that the molecular weight of the nylon matrix decreased firstly and it had the lowest value when the content of nano-hydroxyapatite was 1.6 wt.%. After that the molecular weight increased and then it began to decrease when it reached the highest value. But the tensile strength of the n-HA/N composite were improved. The ultrasonic dispersion made the n-HA more evenly dispersed in the nylon and increased the mechanical properties of the n-HA/N composites significantly. The bioactivity and moisture absorption of n-HA/N composites in simulated body fluid (SBF) were examined and compared to pure nylon. What's more, Fourier transform infrared spectrometer was used to characterize the structure of the materials formed on the surface of the composite. The results showed that moisture absorption of the n-HA/N composites was lower than that of the pure nylon. After composites impregnated 16 days in SBF, a layer of carbon hydroxyapatite (CHA) with weak crystalline was formed on the surface of sample. This phenomenon showed that the n-HA/N composites have good bioactivity.
Einfluß von Nahrungsfett auf Blutzuckerspiegel und Insulinverbrauch nach Einnahme verschiedener Kohlenhydratträger bei Typ-I-Diabetikern am künstlichen Pankreas (2008)

The role of fat on carbohydrate absorption was investigated in 14 type-I-diabetics who were connected to a glucose-monitored insulin infusion pump (Biostator, Miles). The patients received test meals in the form of potatoes, rice and apples with equal carbohydrate content, in each case with and without added fat. Comparison of carbohydrate carriers showed an increase of blood sugar and insulin consumption which was biggest after the potato meal and significantly lower after rice and apple ingestion. This is probably related to the different biologic availability of carbohydrate carriers. Addition of fat caused lowering of blood sugar and insulin consumption in the potato meal; in this case nutritional fat is likely to have slowed gastrointestinal passage. There were no major differences among rice and apple. It can be concluded that addition of fat delays absorption of rapidly split carbohydrates more than absorption of slowly split carbohydrates such as rice. The lack of influence of fat on postprandial blood sugar and insulin consumption after an apple meal is related to the slight increase of blood sugar caused by the high content of fructose.
Dendronized Polymer Organogels from Click Chemistry: A Remarkable Gelation Property Owing to Synergistic Functional‐Group Binding and Dendritic Size Effects (2008)

Mit einem Klick zum Gel: Aus nichtgelierenden heterodifunktionellen Makromonomeren vom AB-Typ entstehen durch „Einklicken“ polytriazolhaltige, Dendronen tragende Polymere. Diese Polymere bilden Wasserstoffbrücken zwischen den Ketten, wobei das Ausmaß von der Größe der dendritischen Anhängsel abhängt. Detailed facts of importance to specialist readers are published as ”Supporting Information”. Such documents are peer-reviewed, but not copy-edited or typeset. They are made available as submitted by the authors. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.
Concentrations of LTB4, LTC4, LTD4 and LTE4 in bronchiolitis due to respiratory syncytial virus (1991)

Fifty‐five infants with bronchiolitis due to respiratory syncytial virus were evaluated for the presence of leukotriene B 4 , C 4 , D 4 and E 4 in nasopharyngeal secretions. An attempt was made to correlate concentrations of leukotrienes to arterial oxygen tension. Forty participants received conventional therapy consisting primarily of aerosolized albuterol and occasional aminophylline therapy. The other 15 individuals received ribavirin therapy in addition to conventional therapy, and leukotriene concentrations were compared among individuals in these groups. RSV infection was documented by standard methods, and leukotrienes were measured by reverse‐phase high pressure liquid chromatography. The leukotriene detected most commonly was LTC 4 (up to 83% of subjects); LTD 4 and LTB 4 were present in approximately 30% of individuals. The mean partial pressure of oxygen was found to be lower in those individuals with detectable LTB 4 than in those without detectable LTB 4 (p &lt; 0.025), and an overall inverse correlation of LTB 4 concentrations with initial pO 2 values was observed (r = 0.318, p &lt; 0.05). The presence and quantity of other leukotrienes did not correlate with the severity of illness. During the first week of illness, the concentration of leukotrienes declined sharply in ribavirin recipients. Individuals receiving conventional therapy during the same time interval exhibited stable or increasing leukotriene concentrations. These observations suggest that LTB 4 may be important in the pathogenesis of bronchiolitis, and that ribavirin therapy may inhibit leukotriene release in the respiratory tract.
Fabrication and characterization of low-cost polarimetric fiber-optic pressure sensor (2006)

A method for rapid identification of bioactive components in herbals from Stephania species was developed by utilizing UPLC-QTOF-MS/MS in this study. Sixty-three alkaloids including the types of proaporphine, aporphine, protoberberine, morphine, hasubanan, benzylisoquinoline and bisbenzylisoquinoline were characterized. Among them, 29 components were selected for semi-quantitative analyses to characterize the difference of chemical compositions among three Stephania species. The results revealed that bisbenzylisoquinoline-type of alkaloids are the representative components of SB (Subgen. Botryodiscia). The content of aporphine-type of alkaloids was much higher in ST (Subgen. Tuberiphania) than that in SS (Subgen. Stephania), while the content of protoberberine-type of alkaloids was higher than that in ST. The present study offered an efficient approach for quality control of Qianjinteng based on the rapid identification and semi-quantification of alkaloids in Stephania species by using UPLC-QTOF-MS.
Optical humidity sensor based on m-nitroaniline doped gold/poly-vinyl alcohol nano-composite (2010)

Gold/polyvinyl alcohol nano-composites with two different concentrations of gold (~1.0 wt% and ~2.0 wt% respectively) were prepared via in-situ reduction of gold salt by employing hydrazine hydrate as a reducing agent. The optical absorption spectra of nanocomposites reveal the shift in the surface plasmon resonance band from 525 nm to 560 nm with increase in gold concentration. The obtained nanocomposites were doped with meta-nitroaniline (m-NA). The m-NA doping resulted into slight blue shift of the surface plasmon resonance band of gold along with appearance of a new band at 356 nm due to m-NA. The nanocomposites were further characterised using X-ray diffraction, Scanning electron microscopy and transmission electron microscopy were used to study particulate properties. It is observed that the particle size of gold varies with gold concentration. In this report for the first time we report a humidity sensor based on these nanocomposites, having response time of 50 s (20-95% RH) and recovery time of around 3 min (95%-20%RH) on fibre optical waveguide, in the range of 20-100% RH. The optimum concentration of gold is found to be 2.0 wt %, which showed higher performance for humidity sensing. The sensing performance was found to be enhanced after m-NA doping.
Regulatory control design for stochastic processes: shaping the probability density function (2004)

This paper presents a regulatory controller synthesis technique that makes a pre-selected probability density function (PDF) for the closed-loop (CL) process the target of the design. The proposed design technique, referred to as PDF-shaping, approximately solves the integral equation giving the PDF of the CL process dynamics. The parameterization of the closed-loop process dynamics results in the parameterization of a controller that yields the required closed-loop PDF. Controller synthesis is then a matter of selecting, based on engineering or economic concerns, a target distribution, and then applying the proposed technique to find the approximate closed-loop dynamics. The special case of PDF-shaping using Gram-Charlier PDFs is presented, as well as the general case. Results of this novel approach to controller synthesis are demonstrated with numerical simulations for an example process.
Industry forum: Data analytics and security in IoT part I (2016)

Start of the above-titled section of the conference proceedings record.
Artificial intelligence for satellite communication: A review (2021)

Satellite communication offers the prospect of service continuity over uncovered and under-covered areas, service ubiquity, and service scalability. However, several challenges must first be addressed to realize these benefits, as the resource management, network control, network security, spectrum management, and energy usage of satellite networks are more challenging than that of terrestrial networks. Meanwhile, artificial intelligence (AI), including machine learning, deep learning, and reinforcement learning, has been steadily growing as a research field and has shown successful results in diverse applications, including wireless communication. In particular, the application of AI to a wide variety of satellite communication aspects has demonstrated excellent potential, including beam-hopping, anti-jamming, network traffic forecasting, channel modeling, telemetry mining, ionospheric scintillation detecting, interference managing, remote sensing, behavior modeling, space-air-ground integrating, and energy managing. This work thus provides a general overview of AI, its diverse sub-fields, and its state-of-the-art algorithms. Several challenges facing diverse aspects of satellite communication systems are then discussed, and their proposed and potential AI-based solutions are presented. Finally, an outlook of field is drawn, and future steps are suggested.
Local CTE mismatch in SM leaded packages: a potential reliability concern (2002)

Thermal expansion mismatches across solder-joint interfaces, referred to as local mismatches, create thermomechanical strains and thus fatigue damage in solder joints of leaded devices. The authors report on an experiment and a modeling program that were conducted to investigate local mismatch effects in SM (surface mount) leaded packages. It was found that, when leads are compliant enough, plastic strains in solder are due mainly to local effects. The models and failure analysis show that the impact of local effects is larger with increasing CTE (coefficient of thermal expansion) mismatch at the lead/solder interface. This is more of a concern with Alloy 42 than with copper-alloy lead frames on FR-4 substrates. Simple mechanical models are also presented to derive acceleration factors for the assessment of global and local effects in the field.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">&gt;</ETX>
Preliminary evaluation of a new continuous intra‐arterial blood gas monitoring device (1995)

Continuous intra-arterial blood gas monitoring is a new technique, possibly offering therapeutic advantages through improved monitoring in patients prone to hypoxaemia, hypercapnia and/or respiratory acidosis. Therefore, we studied the clinical applicability, reliability, precision and side effect of long-term continuous intra-arterial blood gas monitoring in patients suffering from severe acute respiratory distress syndrome. In 10 patients continuous intra-arterial blood gas monitoring based on fluorescent optodes technique was performed. At 4 h intervals, arterial blood samples for in vitro blood gas analyses were drawn, stored in ice, and analysed within 3 min. Evaluation of data retrieved from the continuous intra-arterial blood gas monitoring and in vitro blood gas analysis was based on 596 data points using 10 catheters. Average length of insertion was 281 +/- 215 h, max. lengths of stay was 750 h. Arterial blood gas data obtained in vivo were compared to the mean of in vivo and in vitro arterial blood gases. Inter-catheter bias, expressed as percent difference between continuous intra-arterial blood gas and mean in vitro blood gas analysis was 0.19 +/- 0.23% for pH. 1.1 +/- 5.2% for PaCO2 and 1.6 +/- 5.7% for PaO2. No significant gas partial pressure dependent change in precision was demonstrable. There was no significant time dependent drift in sensor precision over the study period. No negative side-effects related to IABG monitoring were observed. We conclude that long-term use of this new device is possible in patients and represents a reliable alternative to conventional in vitro arterial blood gas analysis, when continuous monitoring of blood gases and/or acid-base balance is critical.
Synthesis and Characterization of Bifunctional Liquid-Crystalline Monomers Showing Smectic C Phase. Photopolymerization and Cross-Linking (1996)

Novel syntheses of bifunctional liquid-crystalline acrylate and methacrylate monomers are described. Thermal and microstructural characterization of the monomers using small-angle X-ray scattering, differential scanning calorimetry, and optical microscopy revealed the presence of smectic A, smectic C, and smectic E phases. Photopolymerization of the bifunctional monomers conducted at different temperatures preserved the monomeric liquid-crystalline structure in the cross-linked polymers. The densely cross-linked polymers showed thermal reversibility. Mixtures of these monomers and chiral monofunctional liquid-crystalline monomers exhibited chiral smectic C mesomorphism that was permanented by photopolymerization and subsequent cross-linking.