gebhart/patrepeval huggingface dataset:
Theory of the Dispersion of Magnetic Permeability in Ferromagnetic Materials at Microwave Frequencies (1946)

The transition in the value of the initial magnetic permeability of iron and nickel from the d.c. permeability \ensuremath{\sim}100 to the infra-red permeability \ensuremath{\sim}1 is known to occur principally in the microwave frequency range. An explanation of the experimental facts is proposed by considering the equations of motion of a domain boundary in an applied magnetic field for frequencies such that the skin depth of the magnetic field is smaller than the thickness of a domain. An analytic solution of Maxwell's equations is found for the magnetization of a layer one domain thick. The definition of the permeability at high frequencies is considered carefully, and it is shown that the natural definition leads to complex values for the permeability. In experiments two different types of permeabilities are found. The relationship of the complex $\ensuremath{\mu}$ to the ${\ensuremath{\mu}}_{R}$ determined from resistive losses in a circuit element and to the ${\ensuremath{\mu}}_{L}$ determined from reactance changes is developed. A criticism is given of theories of ferromagnetic resonance. The status of Becker's theory of eddy current damping is considered. Several suggestions are made for further experiments.
A 60-dB dynamic-range CMOS sixth-order 2.4-Hz low-pass filter for medical applications (2000)

The design and implementation of a fully integrated complementary metal-oxide-semiconductor (CMOS) sixth-order 2.4 Hz low-pass fitter (LPF) for medical applications is presented. For the implementation of large-time constants both linearized operational transconductance amplifiers with reduced transconductance and impedance scalers schemes for grounded capacitors are employed. Experimental results for the filter have shown a dynamic range (DR) of 60 dB, while the harmonic distortion components are below -50 dB. The power consumption for the filter is below 10 /spl mu/W, the power supply is /spl plusmn/1.5 V, and the active area is 1 mm/sup 2/. The filter was fabricated in a double poly double metal 0.8 /spl mu/m CMOS process.
The Role of Lipid Raft Aggregation in the Infection of Type II Pneumocytes by Mycobacterium tuberculosis (2012)

Dynamic, cholesterol-dense regions of the plasma membrane, known as lipid rafts (LR), have been observed to develop during and may be directly involved in infection of host cells by various pathogens. This study focuses on LR aggregation induced in alveolar epithelial cells during infection with Mycobacterium tuberculosis (Mtb) bacilli. We report dose- and time-dependent increases in LR aggregation after infection with three different strains at multiplicities of infection of 1, 10 and 100 from 2-24 hr post infection (hpi). Specific strain-dependent variations were noted among H37Rv, HN878 and CDC1551 with H37Rv producing the most significant increase from 15 aggregates per cell (APC) to 27 APC at MOI 100 during the 24 hour infection period. Treatment of epithelial cells with Culture Filtrate Protein, Total Lipids and gamma-irradiated whole cells from each strain failed to induce the level of LR aggregation observed during infection with any of the live strains. However, filtered supernatants from infected epithelial cells did produce comparable LR aggregation, suggesting a secreted mycobacterial product produced during infection of host cells is responsible for LR aggregation. Disruption of lipid raft formation prior to infection indicates that Mtb bacilli utilize LR aggregates for internalization and survival in epithelial cells. Treatment of host cells with the LR-disruption agent Filipin III produced a nearly 22% reduction in viable bacteria for strains H37Rv and HN878, and a 7% reduction for strain CDC1551 after 6 hpi. This study provides evidence for significant mycobacterial-induced changes in the plasma membrane of alveolar epithelial cells and that Mtb strains vary in their ability to facilitate aggregation and utilization of LR.
Colocalization of MCT1, CD147, and LDH in mitochondrial inner membrane of L6 muscle cells: evidence of a mitochondrial lactate oxidation complex (2006)

Results of previous studies suggested a role of mitochondria in intracellular and cell-cell lactate shuttles. Therefore, by using a rat-derived L6 skeletal muscle cell line and confocal laser-scanning microscopy (CLSM), we examined the cellular locations of mitochondria, lactate dehydrogenase (LDH), the lactate-pyruvate transporter MCT1, and CD147, a purported chaperone protein for MCT1. CLSM showed that LDH, MCT1, and CD147 are colocalized with the mitochondrial reticulum. Western blots showed that cytochrome oxidase (COX), NADH dehydrogenase, LDH, MCT1, and CD147 are abundant in mitochondrial fractions of L6 cells. Interactions among COX, MCT1, and CD147 in mitochondria were confirmed by immunoblotting after immunoprecipitation. These findings support the presence of a mitochondrial lactate oxidation complex associated with the COX end of the electron transport chain that might explain the oxidative catabolism of lactate and, hence, mechanism of the intracellular lactate shuttle.
Drinking water treatment - understanding the processes and meeting the challenges (2001)

On and follow Natural organic matter (NOM) derived from soil and vegetation in water catchments is the key factor influencing most, if not all water treatment processes. The structure of the NOM and its involvement in water treatment processes requires better understanding. It seems likely that a better understanding of NOM reactions could lead to far better predictive capacity for water treatment designers and operators. Certainly the removal of NOM as a first step to the production of drinking water has many attractions. This paper provides an overview of work done by the author and many of his colleagues to advance this issue.
Pteridines, XCV (1989)

Summary A series of new amino acid-tetrahydropterin-conjugates has been synthesized starting from N 2-isobutyryl-6,7- dimethyl-5,6,7,8-tetrahydropterin (7). The amino acids have been attached in form of their esters (10 - 16) via a succinyl spacer to the N-5 position (17 - 23) or directly via the carboxyl function applying CBZprotected activated esters (35, 39). Acylation of 7 with N-benzyloxycarbonylglutamic acid anhydride led to the y-glutamyl derivative 41. Selective deblocking experiments were achieved by catalytic hydrogenolysis to cleave the benzyl esters (24-28, 36, 42) and by DBU treatment to eliminate the p-nitrophenylethyl group (24, 25) respectively. Further reaction with ammonia hydrolysed the isobutyryl group to give the free tetrahydropterin-amino acid-conjugates 29 - 32, 37 and 43. Also a carbamoyl-type conjugate (45) was obtained from 7 and benzyl phenylalanine N-carbonylimidazolide (44). The newly synthesized compounds have been characterized by elemental analysis, UV and IH-NMR spectra.
Horizontes de lo común: sujetos y comunidades post-identitarios (2013)

1. "Horizontes de lo común" tiene como objetivo ofrecer una cartografía del debate filosófico contemporáneo en torno a la noción de lo "común" y a la figura política de la comunidad.Desde que, sobre las ruinas del comunismo estalinista, Bataille formuló su famosa "exigencia de comunidad", la pregunta por lo común se ha ido cargando de una potencia crítica insoslayable para la filosofía actual.A la altura ya del siglo XXI nos hallamos inmersos en una profunda perplejidad.Por un lado, el gigantismo institucional y sus inercias parecen asfixiar la capacidad política de actuar conjuntamente y, de modo más concreto, de innovar la vida pública con criterios y cursos de acción verdaderamente plurales, que vayan más allá del simulacro organizado de pluralidad que es la esfera del consumo.Pero, por otro lado, experimentamos también una dispersión de referentes y lenguajes comunes, imprescindibles para la politización.Una atomización que la actual crisis económica y social no ha hecho más que poner de manifiesto, puesto que la cultura individualista forjada durante décadas fue su sustrato.
Macromelanosomes in X‐linked ocular albinism (1980)

Examination of clinically normal skin from four patients with X-linked ocular albinism of the Nettleship-Falls type by light and electron microscopy revealed the presence of macromelanosomes in some melanocytes and keratinocytes. Measuring up to 5 micron many of the abnormal melanosomes showed a concentrically laminated structure suggestive of a phasic growth pattern. Epidermis from three female carriers contained similar but fewer macromelanosomes. These findings indicate that skin biopsy could be of value not only in confirming the diagnosis of ocular albinism in affected males, but also to establish carrier status in asymptomatic females.
Examining Graphene Field Effect Sensors for Ferroelectric Thin Film Studies (2013)

We examine a prototype graphene field effect sensor for the study of the dielectric constant, pyroelectric coefficient, and ferroelectric polarization of 100-300 nm epitaxial (Ba,Sr)TiO3 thin films. Ferroelectric switching induces hysteresis in the resistivity and carrier density of n-layer graphene (n = 1-5) below 100 K, which competes with an antihysteresis behavior activated by the combined effects of electric field and temperature. We also discuss how the polarization asymmetry and interface charge dynamics affect the electronic properties of graphene.
Design considerations for low-power analog front ends in full-duplex 10GBASE-T transceivers (2014)

The speed of Ethernet over copper cables has steadily increased by a factor of 10,000 over the last four decades, from 1Mb/s in the earliest Ethernet implementations to 10Gb/s in recent systems. This paper describes the design considerations on all levels of the 10GBASE-T design hierarchy that form the basis for the implementation of highly power-efficient AFEs in full-duplex 10GBASE-T transceivers. It also shows how these considerations are implemented in a practical design. At frequencies up to 400MHz, the transceiver presented in this paper achieves >62dBc transmitter SFDR, >62dBc echo cancellation (EC) SFDR and >60dB receiver SFDR. Achieving a bit-error-rate (BER) better than 10 <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">-15</sup> , it dissipates less than 1.75W at full 10Gb/s traffic over a 100m cable, which is the lowest power for a 10GBASE-T AFE published to date.
Dr Constantinos Apostolos Doxiadis, 1913–75 (1975)

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Web Page Classification based on Unsupervised Learning using MIME type Analysis (2021)

The properties of a web page have a strong impact on the experience of web users. In this work, a classification method based on unsupervised clustering is proposed to group web pages into classes based on download content that may affect the Quality of Experience (QoE) perceived by the user. Groups are defined based on Multipurpose Internet Mail Extensions (MIME) content breakdown and external subdomain connections, obtained with a desktop personal computer (PC) running WebPageTest tool. The dataset is generated with a PC as a terminal, emulating the first access to 500 popular websites. The collected data is divided into groups with a classical unsupervised learning algorithm, namely K-means clustering. Results show how web pages are classified in six groups and their cluster characteristics.
Aerial-Ground Robotic system for Terrain estimation and Navigation (2019)

Unmanned ground vehicles and aerial vehicles can utilize their complementary features to address each other's inabilities like limited payload capacity, endurance, agility and field of view and thereby improving the mission efficiency. This paper presents an in-house developed ground and a micro aerial vehicle system performing a coordinated mission. The aerial vehicle is equipped with a stereo image sensor using which the environment around the ground vehicle is reconstructed in the form of an elevation map. This is then processed to get 2D traversability map based on which the ground vehicle performs path planning for a specified goal. The aerial robot also gives a sparse feature map which is used by the ground vehicle for initialization of its pose in the map. A pure pursuit controller for path following is implemented for both aerial and ground vehicle. Most of the proposed concepts are implemented and demonstrated on a real platform. This work also aims to build a base for developing in-house controllers and localization filters that can be used for real-time testing thereby decreasing the time for development.
Remodeling of cytoskeletal architecture of nonneuronal cells induced by synapsin. (1994)

The synapsins, a family of neuron-specific phosphoproteins, have been implicated in the functional and structural maturation of synapses. The cell biological basis for these effects is unknown. In vitro, the synapsins interact with cytoskeletal elements including actin. To examine, in vivo, the possible effect of the synapsins on cytoskeletal organization and cell morphology, we have transfected each of the four known members of the synapsin family into nonneuronal cells. We report here that synapsin expression in fibroblast cells gives rise to an alteration in cell morphology that is associated with formation of highly elongated processes. This morphological change is accompanied by a reorganization of filamentous actin (F-actin) characterized by disruption of existing stress fibers and formation of bundles of actin cables in the elongated processes. These results suggest that interactions of the synapsins with actin, and possibly with other cytoskeletal elements, may play a role in the morphological differentiation of neurons.
Personalized QoS-Aware Web Service Recommendation and Visualization (2011)

With the proliferation of web services, effective QoS-based approach to service recommendation is becoming more and more important. Although service recommendation has been studied in the recent literature, the performance of existing ones is not satisfactory, since (1) previous approaches fail to consider the QoS variance according to users' locations; and (2) previous recommender systems are all black boxes providing limited information on the performance of the service candidates. In this paper, we propose a novel collaborative filtering algorithm designed for large-scale web service recommendation. Different from previous work, our approach employs the characteristic of QoS and achieves considerable improvement on the recommendation accuracy. To help service users better understand the rationale of the recommendation and remove some of the mystery, we use a recommendation visualization technique to show how a recommendation is grouped with other choices. Comprehensive experiments are conducted using more than 1.5 million QoS records of real-world web service invocations. The experimental results show the efficiency and effectiveness of our approach.
Progress in the spectacle correction of presbyopia. Part 1: Design and development of progressive lenses (2008)

Most of the commercial advances in the spectacle correction of presbyopia continue to occur in progressive lens design, which has been the focus of intense research and development over the past 60 years by major spectacle lens manufacturers. While progressive lens design and manufacturing techniques have advanced at a steady pace, recent progress in 'free-form' lens surfacing has opened up many exciting possibilities that will in all likelihood bring about a paradigm shift in the current model of progressive lens fabrication and distribution. The first installment of this two-part series will review the fundamental optical principles and early development work associated with progressive lenses.
Design considerations for microprogramming languages (1974)

Historically, microprograms have been developed using tools which are appropriate to logic designers (block diagrams, register transfer languages), or systems programmers (microcode assemblers). With the growth of user microprogramming, and the increased demands placed upon computer manufacturers for firmware support, improved tools and techniques have been suggested. In particular, microprogram compilers, i.e., compilers which translate high level source statements into sequences of microprogram control words, have been proposed and implemented. The larger issue to be faced is the nebulous task of supporting the needs of a community which includes:
Successor: Proactive cache warm-up of destination hosts in virtual machine migration contexts (2016)

In virtualization platforms, host-side storage caches can serve virtual machines (VM) disk I/O requests, which originally target network storage servers. When these requests hit host-side caches, network and disk access latencies are obviated, and thus VMs perceive improved storage performance. VM migration is common in cloud environments, however, VM migration does not transfer host-side cache states. As a result, a newly migrated VM suffers performance degradation until the cache is fully rebuilt. The performance degradation period can be hours long if the cache is naturally warmed up. Employing existing cache warm-up solutions such as migrating host-side cache and Bonfire, VMs may either have a prolonged total migration time or undergo a performance degradation period of tens of minutes due to the warm-up caused storage contention. We propose Successor, which proactively warms up caches of destination hosts before migration completes. Specifically, accessibility of destination hosts during migration enables Successor to parallelize cache warm-up and VM migration. Compared with migrating host-side cache and Bonfire, Successor achieves zero VM-perceived cache warm-up time with low resource costs and performance penalties. We have implemented a prototype of Successor on QEMU/KVM based virtualization platform and verified its efficiency.
Prozessschritte im Case Management (2018)

Soziale Arbeit, founded in 1951, is an independent academic journal which addresses developments in the context of social work. It is one of the most important publication media in its field and is read by teachers, students and researchers in social work and social pedagogy as well as by professionals and managers from associations and institutions.
A microstrip printed dipole solar antenna using polycrystalline silicon solar cells (2008)

A novel printed dipole solar antenna design with an integrated balun is proposed for the first time with high efficiency polycrystalline silicon solar cells. The optimum orientation of the silver DC bus bars of the solar cell is determined in order to achieve best antenna performance. Good solar antenna performance similar to that of ordinary printed dipoles with PEC reflectors is achieved.
Morphometric Examination of Straight, Tapered Titanium Stems (2001)

Cementless straight, tapered rectangular cross section titanium stems have been used by the senior author since 1979. Thirty-four stems retrieved postmortem, after between 10 days and 15.2 years in situ, were studied morphometrically and histologically. Nineteen stems were first generation (1979–1986), with an incomplete sagittal taper and a mean surface roughness of 1 μm (Ra 1.23 ± 0.3 μm); 15 stems were second generation after 1986, with a full biplane taper and a mean surface roughness of 4 μm (Ra 4.14 ± 0.36 μm). Implant surface bony coverage was determined morphometrically in 10 segments of the stems, and expressed as a bone implant contact index. Histologically, there were no differences between implants with different levels of roughness. Morphometrically, the firstgeneration stems showed significant differences in coverage (distal > proximal); second-generation stems had a more uniform pattern. Stems retrieved early after arthroplasty had a mean bone implant contact index of 10%. The mean bone implant contact index showed attainment of maximum coverage by 5 years after arthroplasty, without additional apposition or loss thereafter. Patients younger than 65 years at arthroplasty had similar bone implant contact indices to patients 65 years or older; coverage in the six patients 80 years of age at retrieval did not differ from the rates in the other patients. Morphometry was able to provide objective evidence of design change effects. No differences in coverage were found in terms of times in situ, patient age at arthroplasty and at retrieval, and degree of stem surface roughness.
Detection of harmful algal blooms using photopigments and absorption signatures: A case study of the Florida red tide dinoflagellate, <i>Gymnodinium breve</i> (1997)

The utility of photopigments and absorption signatures to detect and enumerate the red tide dinoflagellate, Gymnodinium breve, was evaluated in laboratory cultures and in natural assemblages. The carotenoid, gyroxanthindiester, was an adequate biomarker for G. breve biomass; water‐column concentrations corresponded with cell standing crops and chlorophyll a concentrations during bloom events in Sarasota Bay, Florida. Unlike other carotenoids, the relative abundance of gyroxanthin‐diester did not change throughout a range of physiological states in culture and the gyroxanthin‐diester: chlorophyll a ratio exhibited little variability in a natural assemblage during bloom senescence. Stepwise discriminant analysis indicated that wavelengths indicative of in vivo absorption by accessory chlorophylls and carotenoids could correctly discern spectra of the fucoxanthin‐containing G. breve from spectra of peridinin‐containing dinoflagellates, a diatom, a haptophyte, and a prasinophyte. With the use of a similarity algorithm, the increasing contribution of G. breve was discerned in absorption spectra (and corresponding fourth‐derivative plots) for hypothetical mixed assemblages. However, the absorption properties of chlorophyll c ‐containing algae vary little among taxa and it is difficult to discern the contribution of accessory chlorophylls and carotenoids caused by cell packaging. Therefore, the use of absorption spectra alone may not identify the contribution of a chlorophyll c ‐containing taxon to the composite spectrum of a mixed assemblage. This difficulty in distinguishing among spectra can be minimized by using the similarity algorithm in conjunction with fourth‐derivative analysis.
Treatment of rabbit carotid aneurysms by hybrid stents (microporous thin polyurethane-covered stents): Preservation of side-branches (2013)

The use of hybrid stents for aneurysm repair and side-branch patency seems to be effective, as per the long-term results obtained in an animal model.
<title>In-vivo NIR diffuse-reflectance tissue spectroscopy of human subjects</title> (1999)

There are few published works (Marbach 1993,1995) in the field of tissue spectroscopy for glucose self-monitoring, in the wavelength range from 1.0 microns to 2.5 microns, and the error described is too large for clinical use or for home monitoring. Measurements (Arnold 1990, Marbach 1993) of aqueous solutions of glucose, with concentrations in the physiological range, have been promising, including measurements (McNulty 1998) in our laboratory.