gebhart/patrepeval huggingface dataset:
Buffer management for TCP/NC tunnel in lossy and congested networks (2019)

Tunneling scheme based on Transmission Control Protocol with Network Coding (TCP/NC Tunnel) is a potential proposal for applying TCP/NC on networks having end devices unable to implement TCP/NC and saving the bandwidth in loss-free but thin networks. However, it currently lacks an efficiency packet dropping method in network congestion resulting in causing many TCP timeouts at end devices, and non-stop increasing the number of redundancy packets on tunneling. It also lacks the method to drop unuseful retransmitted packets cause gateway buffer overloading. In this paper, we propose a new buffer management mechanism for TCP/NC tunnel system to solve all these issues.
Lessons Learned from a Distributed RF-EMF Sensor Network (2022)

In an increasingly wireless world, spatiotemporal monitoring of the exposure to environmental radiofrequency (RF) electromagnetic fields (EMF) is crucial to appease public uncertainty and anxiety about RF-EMF. However, although the advent of smart city infrastructures allows for dense networks of distributed sensors, the costs of accurate RF sensors remain high, and dedicated RF monitoring networks remain rare. This paper describes a comprehensive study comprising the design of a low-cost RF-EMF sensor node capable of monitoring four frequency bands used by wireless telecommunications with an unparalleled temporal resolution, its application in a small-scale distributed sensor network consisting of both fixed (on building façades) and mobile sensor nodes (on postal vans), and the subsequent analysis of over a year of data between January 2019 and May 2020, during which slightly less than 10 million samples were collected. From the fixed nodes' results, the potential errors were determined that are induced when sampling at lower speeds (e.g., one sample per 15 min) and measuring for shorter periods of time (e.g., a few weeks), as well as an adequate resolution (30 min) for diurnal and weekly temporal profiles which sufficiently preserves short-term variations. Furthermore, based on the correlation between the sensors, an adequate density of 100 sensor nodes per km<sup>2</sup> was deduced for future networks. Finally, the mobile sensor nodes were used to identify potential RF-EMF exposure hotspots in a previously unattainable area of more than 60 km<sup>2</sup>. In summary, through the analysis of a small number of RF-EMF sensor nodes (both fixed and mobile) in an urban area, this study offers invaluable insights applicable to future designs and deployments of distributed RF-EMF sensor networks.
<title>First-order rate-based flow control with dynamic queue threshold for high-speed wide-area ATM networks</title> (1997)

In this paper we present a new rate-based flow control scheme for ATM ABR services and analyze its performance. The proposed algorithm, which we refer to as First-order Rate- based Flow Control (FRFC) is the most single form of queue- length-based flow control. The asymptotic stability, the steady-state throughput, queue length and fairness, and the transient behavior are analyzed for case of multiple connections with diverse round-trip delays. We also consider a novel approach to dynamically adjust a queue threshold in the FRFC according to the changes in the available bandwidth, and the arrival and departure of connections. Simulations show that the simple FRFC with dynamic queue threshold effectively maintains high throughput, small loss and a desired fairness in these dynamic environments and is a promising solution for ABR flow control in ATM networks.
Fault‐tolerant control of nonlinear processes: performance‐based reconfiguration and robustness (2005)

Abstract This work considers the problem of control system/actuator failures in nonlinear processes subject to input constraints and presents two approaches for fault‐tolerant control that focus on incorporating performance and robustness considerations, respectively. In both approaches, first a family of candidate control configurations, characterized by different manipulated inputs, is identified for the process under consideration. Performance considerations are first incorporated via the design of a Lyapunov‐based predictive controller that enforces closed‐loop stability from an explicitly characterized set of initial conditions (computed using an auxiliary Lyapunov‐based nonlinear controller). A hierarchical switching policy is derived, that uses stability considerations (evaluated via the presence of the state in the stability region of a control configuration) to ascertain the suitability of a candidate backup configuration and then performance considerations are again considered in choosing between the suitable backup configurations. Next, we consider the problem of implementing fault‐tolerant control to nonlinear processes subject to input constraints and uncertainty. To this end, we first design a robust hybrid predictive controller for each candidate control configuration that guarantees stability from an explicitly characterized set of initial conditions, subject to uncertainty and constraints. A switching policy is then derived to orchestrate the activation/deactivation of the constituent control configurations. Finally, simulation studies are presented to demonstrate the implementation and evaluate the effectiveness of the proposed fault‐tolerant control method. Copyright © 2005 John Wiley &amp; Sons, Ltd.
HYBRID PHOSPHINE-CROWN ETHER LIGANDS: THE STUDY OF BENZO-15-CROWN-5 AND N-PHENYLAZA-15-CROWN-5 AND -18-CROWN-6 FUNCTIONALIZED WITH Ph2P- (1995)

Abstract Methods for the preparation of the 4-diphenylphosphino derivatives of N-phenylaza-15-crown-5 and -18-crown-6 are described. The properties of these systems and the 4′-diphenylphosphino derivative of benzo-15-crown-5 have been examined by way of picrate ion extraction abilities and IR spectra of their Ni(CO)3L (L = these phosphines) complexes. All three have abilities to extract Na+ and K+ that are comparable to benzo-15-crown-5. The IR studies (νCO, A1 band) indicate that the azacrown systems have better ability than the benzocrown system to increase the electron density on the nickel center. Further, the addition of alkali metal ions, Na+ and K+, to the Ni(CO)3L solutions results in maximum shifts of ca 1.5 cm−1 for the former systems and 0.7 cm−1 for the latter system. A rationale for this observation is presented in terms of Hammett substituent constants. Finally, an X-ray structure of the phosphine oxide of the phenylaza-15-crown-5 derivative is presented. A prominent feature of the structure is that the nitrogen atom is essentially planar with the result that the crown ether ring is large and not preorganized for coordination of spherical ions. Key Words: crown ethermacrocyclephosphine ligandsnickel tetracarbonyl
Rac1 and Rac3 isoform activation is involved in the invasive and metastatic phenotype of human breast cancer cells (2005)

This study correlates endogenous Rac activity with high metastatic potential and implicates Rac in the regulation of cell migration and invasion in metastatic breast cancer cells. Taken together, these results suggest a role for both the Rac1 and Rac3 GTPases in human breast cancer progression.
Low-Overhead LogGP Parameter Assessment for Modern Interconnection Networks (2007)

Network performance measurement and prediction is very important to predict the running time of high performance computing applications. The LogP model family has been proven to be a viable tool to assess the communication performance of parallel architectures. However, non-intrusive LogP parameter assessment is still a very difficult task. We compare well known measurement methods for Log(G)P parameters and discuss their accuracy and network contention. Based on this, a new theoretically exact measurement method that does not saturate the network is derived and explained in detail. Our method only uses benchmarked values instead of computed parameters to compute other parameters to avoid propagation of first-order errors. A methodology to detect protocol changes in the underlying communication subsystem is also proposed. The applicability of our method and the protocol change detection is shown for the low-level API as well as MPI implementations of different modern high performance interconnection networks. The whole method is implemented in the tool Netgauge and it is available as open source to the public.
New Spherical Aberration Compensator for Blu-Ray Disc (2005)

In high numerical aperture optical disc systems, a spherical aberration compensator is required to accomodate thickness deviations of the cover layer and the space layer. In some cases, a liquid crystal (LC) plate is employed as a spherical aberration compensator and it is generally attached to the objective lens actuator coaxial with the objective lens. It is useful to put the LC plate in a fixed part of the optical head to cope with high-speed disc rotation and to reduce the size of the objective lens actuator, but additional objective lens decentering against the LC plate is caused by the tracking operation. In this paper, a new spherical aberration compensator for Blu-ray Disc optical systems is introduced to decrease the wavefront aberration caused by objective lens decentering.
Type B Interrupted Aortic Arch With a Very Large Right Subclavian Artery Aneurysm in an Adult (2022)

Interruption of the aortic arch and right subclavian artery aneurysm is a rare congenital malformation. Survival in adults depends on the formation of collaterals to supply the descending aorta. The interruption of the aortic arch must be taken into account, particularly in patients with hypertension and weak pulses in the lower extremities. We present a case of aortic arch interruption and a right subclavian artery aneurysm in a woman who survived to adulthood.
Potassium-doped graphene enhanced electrochemiluminescence of SiO2@CdS nanocomposites for sensitive detection of TATA-binding protein (2012)

Based on the amplified signal from SiO(2)@CdS nanocomposites integrated with K-doped graphene, a new electrochemiluminescence biosensor was developed for the successful detection of transcription factor TATA-binding protein (TBP).
Triplet p-wave pairing correlation in low-doped zigzag graphene nanoribbons (2017)

We reveal an edge spin triplet p-wave superconducting pairing correlation in slightly doped zigzag graphene nanoribbons. By employing a method that combines random-phase approximation, the finite-temperature determinant quantum Monte Carlo approach, and the ground-state constrained-path quantum Monte Carlo method, it is shown that such a spin-triplet pairing is mediated by the ferromagnetic fluctuations caused by the flat band at the edge. The spin susceptibility and effective pairing interactions at the edge strongly increase as the on-site Coulomb interaction increases, indicating the importance of electron-electron correlations. It is also found that the doping-dependent ground-state p-wave pairing correlation bears some similarity to the famous superconducting dome in the phase diagram of a high-temperature superconductor, while the spin correlation at the edge is weakened as the system is doped away from half filling.
Imaging properties of extended depth of field microscopy through single-shot focus scanning (2015)

Although the single-shot focus scanning technique (SSFS) has been experimentally demonstrated for extended depth of field (EDOF) imaging, few work has been performed to characterize its imaging properties and limitations. In this paper, based on an analytical model of a SSFS system, we examined the properties of the system response and the restored image quality in relation to the axial position of the object, scan range, and signal-to-noise ratio, and demonstrated the properties via a prototype of 10 × 0.25 NA microscope system. We quantified the full range of the achievable EDOF is equivalent to the focus scan range. We further demonstrated that the restored image quality can be improved by extending the focus scan range by a distance equivalent to twice of the standard DOF. For example, in a focus-scanning microscope with a ± 15 μm standard DOF, a 120 μm focus scan range can obtain a ± 60 μm EDOF, but a 150 μm scan range affords noticeably better EDOF images for the same EDOF range. These results provide guidelines for designing and implementing EDOF systems using SSFS technique.
Cell capacitor voltage control in a parallel hybrid modular multilevel voltage source converter for HVDC applications (2012)

This paper presents further characteristics of the recently proposed parallel hybrid modular multilevel voltage source converter (VSC) for HVDC applications. Schemes for the control of the cell voltages and the total chain link voltages are also presented. The concept is supported by simulation results from a 17-level 10kW miniature laboratory model under construction. (6 pages)
Angiogenesis and healing with non-shrinking, fast degradeable PLGA/CaP scaffolds in critical-sized defects in the rabbit femur with or without osteogenically induced mesenchymal stem cells (2011)

Cost effective and safely to apply tissue engineered constructs of big volume bone transplants for the reconstruction of critical sized defects (CSD) are still not available. Key problems with synthetic scaffold materials are shrinkage and fast degradation of the scaffolds, a lack of blood supply and nutrition in the central scaffold volume and the absent or the scarce development of bone tissue along the scaffold to bridge the bone defect. The use of composite scaffolds made of biopolymers like polylactidglycolid acid (PLGA) coated and loaded with calcium phosphates (CaP) revealed promising therapeutical options for the regeneration of critical sized bone defects. In this study interconnectively macroporous PLGA scaffolds loaded with microporous and coated with nanoporous calcium phosphates were either seeded in fixed bed bioreactors with allogenic osteogenically induced mesenchymal stem cells and implanted or implanted unseeded into critical sized femoral bone defects. As CSD a 12 mm long segment of the chinchilla femur was excised where the proximal and distal parts of the femur were fixed and stabilized by the use of an eight-hole linear reconstruction plate and secured with three bicortical screws (2.7 mm diameter) on every side of the osteotomy. Aim of the study was if we could find a way to load and coat PLGA scaffolds with CaP so that shrinkage of scaffolds could be avoided, which would favour angiogenesis, blood supply and nutrition in the construct and thus avoid central necroses regularly observed so far in transplants not vascularized and which would be inhabited by cells of he bone lineage forming new bone and healing the defect. Four weeks, at least, a notable shrinkage of the scaffolds was avoided and scaffolds were practically not degraded. Both scaffolds, loaded and loaded and coated, revealed blood vessels in all parts of the implants after 4 weeks. Only in scaffolds seeded with allogenic mesenchymal stem cells the development of bridging bone constructs between proximal and distal edges of the femur was observed after four weeks without further supplementation of growth factors. In case of the implantation of non-seeded scaffolds no obvious scaffold bound bone development could be shown.
In vitro biodegradation of designed tubular scaffolds of electrospun protein/polyglyconate blend fibers (2008)

Electrospun polyglyconate (Maxon) and its blends with proteins such as gelatin and elastin, with a spatially designed layer structure, were prepared as potential scaffolds for vascular tissue engineering. In vitro biodegradation of the electrospun tubular protein/Maxon scaffolds in phosphate buffered saline (pH = 7.3) was studied for the first time. The biodegradation is manifested by uptake of the PBS medium by the hydrophilic proteins and also by the mass loss due to the removal of degraded fragments and uncrosslinked proteins from the matrices. The effect of degradation on the structure-property relations was evaluated by IR, XRD, and DSC analyses of the aged scaffolds. The degradation of amorphous phase of Maxon in the early stages of aging has resulted in an increase in the crystallinity of the polymer. SEM analysis indicated a significant change in nanofiber morphology and fiber-breaking. The mass loss and fiber breaking have negatively impacted the mechanical properties and the effect was maximum at 15-20 days of aging. The scaffold containing low molecular weight buffer soluble elastin revealed relatively better degradation properties compared to that containing high molecular weight buffer insoluble elastin.
Exposure Rate Dependence of the CO33- Signal Intensity in ESR Dosimetry of Human Tooth Enamel. (1992)

Experiments were made to determine the exposure rate dependence of CO33- signal intensity in ESR dosimetry of tooth enamel. Packages containing 100 mg of mixed tooth enamel of particle size of 500- 850μm were irradiated by 60Co gamma-rays with various exposure rates ranging from 5.17×10-3 to 3.48 C kg-1 h-1 up to a total exposure of about 1290×10-4 C kg-1 (500 R) . The irradiated tooth enamel samples were then subject to ESR measurements and the relative response was determined as a function of exposure rate. The response was found to be almost independent of exposure rate. No significant difference of response is observed between dry-irradiated and wet-irradiated samples.
Interpreting chromosomal DNA restriction patterns produced by pulsed-field gel electrophoresis: criteria for bacterial strain typing (1995)

FRED C. TENOVER,* ROBERT D. ARBEIT, RICHARD V. GOERING, PATRICIA A. MICKELSEN, BARBARA E. MURRAY, DAVID H. PERSING, AND BALA SWAMINATHAN National Center for Infectious Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia 30333; Veterans Affairs Medical Center, Boston, Massachusetts 02130; Creighton University, Omaha, Nebraska 68178; Stanford University Medical Center, Stanford, California 94305; University of Texas Medical School, Houston, Texas 77030; and Mayo Clinic, Rochester, Minnesota 55905
Endogenous Opioid Activity in Clinical Hemorrhagic Shock (1986)

Maryland Institute for Emergency Medical Services, Baltimore, Maryland; The National Institute of Mental Health, Bethesda, Maryland; and the Johns Hopkins University School of Medicine, Baltimore, Maryland
TRAINING AND EXPERIENCE OF PHYSICIANS IN THE MANAGEMENT OF ADEQUATE ANTICOAGULANT THERAPY. (1965)

In a group of seven physicians engaged on a full-time basis in the anticoagulant unit of a teaching hospital, it was demonstrated that errors occur frequently in the management of anticoagulant therapy and that the incidence of such errors decreases during the course of the physician's training period. Expert supervision and proper organization of the unit permit detection and correction of a high percentage of these errors.
Flow Mechanism Investigation and Field Practice for Low Concentration Flowing Gel (1998)

Abstract The applications of flowing gel for modifying the water injection profile is a novel EOR technique developed in recent year. The features of this system are low cost, large application and it can solve the problems of short effective period, quick polymer production in polymer flooding. Therefore, it is of certain use in China. In the paper, the low concentration flowing gel was obtained by using organic metallic Cr3+-polyacrylamide system for the first time. The structure and properties of the gels were identified by modern analytical techniques of atomic force microscopy and dynamic rheological method. The large diameter sand pack displacement tests were carried out to investigate the flow mechanisms in the porous media. The results show that: flowing gel is a aggregate of cross-linked molecules with a radius of 30 m. Low concentrations gellant system can form into gel during its flow in porous media. And the gel formed is capable of flowing, and different from that formed from solutions. The flowing behavior of low concentration flowing gel in porous media is different from conventional polymer flooding. It can be described by the first, maximums and residual resistance factors. The field practice of injectivity test was carried out in Henan oil field. The radius of injection was 70m, injection period 60 days. After injection, pressure increased 2MPa, with an incremental oil production of 4 ton/d. It shows the injectivity is good. P. 483
Antibiotic Resistance and Therapy for H. pylori Infection in Immigrant Patients Treated in Italy (2020)

<i>Background</i>: <i>Helicobacter pylori</i> (<i>H. pylori</i>) infection is the leading cause of both peptic ulcers and gastric tumors, including low-grade MALT-lymphoma and adenocarcinoma. Although it is decreasing in developed countries, <i>H. pylori</i> prevalence remains high in developing areas, mainly due to low socio-economic levels, and the potential consumption of contaminated water. Moreover, a different pattern of primary antibiotic resistance is expected in their <i>H. pylori</i> isolates, potentially affecting the efficacy of standard eradication therapies. Indeed, a previous study showed the eradication rate following triple therapy was distinctly lower in dyspeptic <i>H. pylori</i> infected immigrants living in Italy as compared to Italian patients. <i>Aims</i>: to evaluate the resistance pattern in <i>H. pylori</i> isolates from immigrant patients in Italy, and the success rate of first-line therapy in these patients. <i>Materials and Methods</i>: This retrospective study evaluated data of consecutive immigrant patients, diagnosed with <i>H. pylori</i> infection in a single center (Bologna, Italy) between January 2009 and January 2019. Patients underwent first-line therapy with either sequential or Pylera<sup>®</sup> (Allergan USA, Inc. Madison, NJ, USA) therapy. <i>Results</i>: A total of 609 immigrants were diagnosed with <i>H. pylori</i> infection during the study period, but 264 previously received an eradication therapy. Therefore, the study was focused on 294 out of 345 naïve patients with a successful bacterial culture with antibiogram. Latin America immigrants had the highest overall resistance rate. Levofloxacin resistance rate was significantly higher in Latin Americans and Asians as compared with Europeans. Based on resistance patterns, sequential therapy showed a clear decreasing trend in eradication rates. Conclusions: while antibiotic resistance rates are generally increasing worldwide, Pylera<sup>®</sup> seems to achieve a good performance as first-line treatment in all naïve foreigner patients, except for Africans.
In situ self-assembling Au-DNA complexes for targeted cancer bioimaging and inhibition (2019)

Cancer remains one of the most challenging diseases to treat. For accurate cancer diagnosis and targeted therapy, it is important to assess the localization of the affected area of cancers. The general approaches for cancer diagnostics include pathological assessments and imaging. However, these methods only generally assess the tumor area. In this study, by taking advantage of the unique microenvironment of cancers, we effectively utilize in situ self-assembled biosynthetic fluorescent gold nanocluster-DNA (GNC-DNA) complexes to facilitate safe and targeted cancer theranostics. In in vitro and in vivo tumor models, our self-assembling biosynthetic approach allowed for precise bioimaging and inhibited cancer growth after one injection of DNA and gold precursors. These results demonstrate that in situ bioresponsive self-assembling GNC-PTEN (phosphatase and tensin homolog) complexes could be an effective noninvasive technique for accurate cancer bioimaging and treatment, thus providing a safe and promising cancer theranostics platform for cancer therapy.