gebhart/patrepeval huggingface dataset:
A microstrip three-port and four-channel multiplexer for WLAN and UWB coexistence (2005)

This paper proposes a microstrip three-port four-channel multiplexer for wireless systems where wireless local area network (WLAN) and ultra-wideband (UWB) coexist. The proposed multiplexer has two channels, from 2.15 to 2.89 GHz and from 5.13 to 5.84 GHz, for WLAN and two channels, from 3.22 to 4.83 GHz and from 6.07 to 8.22 GHz, for UWB. The measured scattering parameters agree well with the simulations. To determine a proper circuit topology and overcome the interference problems between ports, the genetic algorithm (GA) technique is exploited. The GA search takes approximately 3 min on a personal computer with a 2.4-GHz microprocessor. Additionally, the analysis of the circuit behaviors, the problem on the size of the multiplexer, and the isolation issues between WLAN and UWB ports are discussed.
Correlation between frictional force and surface roughness of orthodontic archwires (2015)

Lateral force microscopy measures the lateral bending of the cantilever depending on the frictional force acting between the tip and surface. The aim of this study was to investigate and compare the relationship between the surface roughness and frictional resistance of four archwire and bracket combinations consisting of the 0.016-inch NiTi and 0.019 × 0.025-inch stainless steel archwires interacting clinically with two representative self-ligating brackets, active-type Clippy-C(®) ceramic self-ligating brackets, and passive-type Damon(®) stainless steel self-ligating brackets, using the lateral force microscopy technique. A 0.016-inch NiTi archwire interacting with passive-type Damon(®) stainless steel self-ligating brackets showed the smoothest surface roughness and the lowest frictional resistance compared to other combinations. The archwires interacting with passive-type Damon(®) stainless steel self-ligating brackets showed significantly lower surface roughness and frictional resistance than those interacting with active-type Clippy-C(®) ceramic self-ligating brackets. The frictional force in the in vivo archwire and bracket system increased with increasing surface roughness of the archwire. This positive correlation suggests that surface roughness can be used as an evaluating marker for estimating the efficiency of orthodontic treatment, rather than the direct measurement of frictional force.
Speech Enhancement based on Savitzky Golay Smoothing Filter (2012)

Speech denoising is the process of removing unwanted sounds from the speech signal. In the presence of noise, it is difficult for the listener to understand the message of the speech signal. Also, the presence of noise in speech signal will degrade the performance of various signal processing tasks like speech recognition, speaker recognition, speaker verification etc. Many methods have been widely used to eliminate noise from speech signal like linear and nonlinear filtering methods, total variation denoising, wavelet based denoising etc. This paper addresses the problem of reducing additive white Gaussian noise from speech signal while preserving the intelligibility and quality of the speech signal. The method is based on Savitzky-Golay smoothing filter, which is basically a low pass filter that performs a polynomial regression on the signal values. The results of S-G filter based denoising method are compared against two widely used enhancement methods, Spectral subtraction method and Total variation denoising. Objective and subjective quality evaluation are performed for the three speech enhancement schemes. The results show that S-G based method is ideal for the removal of additive white Gaussian noise from the speech signals.
Microwave holographic technique for reflector antenna profile measurement (1986)

A short-range microwave holographic technique for the measurement of reflector antenna surface profile is described. The technique uses a linearly scanned transmit/receive CW probe located on-axis at approximately two focal lengths from the reflector vertex. Rotation of the reflector provides a plane-polar data set which can be reconstructed by a fast algorithm to provide a surface profile error map. No special precautions are required with regard to the reflectivity of the environment. Practical results are provided to illustrate the performance of the system.
Leakage-Aware Cooling Management for Improving Server Energy Efficiency (2014)

The computational and cooling power demands of enterprise servers are increasing at an unsustainable rate. Understanding the relationship between computational power, temperature, leakage, and cooling power is crucial to enable energy-efficient operation at the server and data center levels. This paper develops empirical models to estimate the contributions of static and dynamic power consumption in enterprise servers for a wide range of workloads, and analyzes the interactions between temperature, leakage, and cooling power for various workload allocation policies. We propose a cooling management policy that minimizes the server energy consumption by setting the optimum fan speed during runtime. Our experimental results on a presently shipping enterprise server demonstrate that including leakage awareness in workload and cooling management provides additional energy savings without any impact on performance.
Dispersive-Type Optical Bistability in a Self-Electrooptic-Effect Etalon (1989)

A dispersive-type self-electrooptic-effect etalon, which consists of a Fabry-Perot etalon multiple quantum well modulator and an electrical feedback circuit, is proposed. Calculations show that the ON-OFF contrast is improved up to 9:1 due to the sharp etalon resonance. The effect of the mirror reflectivity and the absorption coefficient is also studied.
Desorption of Protein and Bacteria from Hydroxyapatite by Fluoride and Monofluorophosphate (1975)

The present experiments showed that fluoride and monofluorophosphate in low concentrations could desorb albumin and salivary glycoprotein adsorbed to hydroxyapatite in vitro. It is suggested that the principle involved is competitive inhibition, the fluoride and monofluorophosphate ions replacing acidic protein groups adsorbed to calcium ‘sites’ on the mineral surface. Bacteria adsorbed to hydroxyapatite could be desorbed in the same way indicating a similar mechanism. The adsorption of biological material to teeth seems to be strongly dependent on the surface chemistry of the teeth. Desorption of pellicle protein and bacteria may be one of the mechanisms by which fluoride and monofluorophosphate exert their cariostatic effect in vivo.
Distributed substation control system with PC based local control (1993)

In a departure from traditional substation control design in New Zealand, the new Trans Power 220 kV Ashburton substation makes use of an ICADA (integrated control and data acquisition) system for all control and monitoring functions. The system consists of a Westronic D20 distributed RTU (remote terminal unit) and a PC (personal computer) running RealFlex software as the local operator interface. The D20 input/output modules are located in panels in the control room, in the outdoor junction boxes and in the transformer control cubicles, with the modules being inter-connected via fibre optic cable. The D20 RTU serves as the main interface. For all input and output signals, communicating on separate serial channels with the local PC, with Trans Power's South Island System Control and with the Area Control Centre in Christchurch. Different sets of data are sent to these locations using two separate protocols. The D20 also executes a PLC program which provides some control and alarm combination logic. The local PC displays substation status on graphic mimic screen diagrams, logs events and alarms to printer and disk, and allows local control of circuit breakers, disconnecters, transformers and related items. The operator interface is designed to be user friendly with most actions being carried out by point and click using a mouse.
Minimal Volume of Local Anesthetic Required for an Ultrasound-Guided SGB (2012)

In conclusion, when performing an ultrasound-guided SGB, 2 mL dosage was sufficient for a successful block as the previous, conventional volume. Therefore, when performing an ultrasound-guided SGB, we recommend the 2 mL dosage of local anesthetics for a successful block.
The Charters of Duchess Constance of Brittany and Her Family, 1171-1221. Edited by Judith Everard and Michael Jones. Woodbridge, Suffolk: Boydell Press. 1999. xxx + 217 pp.  50. ISBN 0 85115 751 3 (2001)

Reviews of Books Get access The Charters of Duchess Constance of Brittany and Her Family, 1171–1221. Edited by Judith Everard and Michael Jones. Woodbridge, Suffolk: Boydell Press 1999. xxx + 217 pp. £50. ISBN 0 85115 751 3. D. J. POWER D. J. POWER University of Sheffield Search for other works by this author on: Oxford Academic Google Scholar French History, Volume 15, Issue 1, March 2001, Pages 105–106, https://doi.org/10.1093/fh/15.1.105 Published: 01 March 2001
Access methods for next-generation database systems (2000)

Today's extensible object-relational database management systems (ORDBMSs) are being deployed to support nontraditional applications such as dynamic web servers and geographic information systems. ORDBMSs distinguish themselves from purely relational DBMSs by providing an extensible architecture, built around a richer and user-extensible type system combined with object-oriented concepts such as type hierarchies. They retain standard features of relational databases such as declarative access, multiuser operation, transactional isolation and recoverability. 
One particular aspect of DBMS functionality that is critical to performance is their support for access methods (AMs). In traditional relational DBMSs, B+-trees [Com79] serve as the AM of choice to provide a very high level of performance for applications dealing with the standard SQL datatypes (numeric data, character strings, dates, etc.). In order to provide the same level of performance for non-traditional applications, B+-trees are not sufficient; instead, novel kinds of datatype-specific AMs are required. The most promising approach to supporting those novel AMs is an extensible architecture in which the core services of the ORDBMS can be complemented with externally-supplied AMs. 
In my dissertation, I investigate general issues that arise in the design and implementation of nontraditional AMs in an extensible ORDBMS. This research was undertaken in the context of the generalized search tree (GIST), a tree-structured template access method, which encapsulates standard AM search and update functions and is a suitable basis for AM extensibility in ORDBMSs. The dissertation contains three contributions. The first is an extension of the GIST API that makes it more flexible and at the same time improves performance when implemented in a typical commercial ORDBMS. The second comprises concurrency and recovery protocols that allow GiSTs to be useful in application scenarios where high concurrency and recoverability are required. With these protocols, GiSTs fully encapsulate physical concurrency, transactional isolation and recovery, and thereby relieve an external access method of the burden of dealing with these issues. The API extensions and the concurrency and recovery protocols together make GiSTs a high-performance alternative to custom AM development in commercial ORDBMS. The third contribution is an AM performance analysis framework, implemented in a corresponding tool, that gives the AM developer a detailed picture of an AM's performance deficiencies while still retaining the GIST framework's independence of the datatype and application.
Reciprocal Relationship between<i>O</i>6-Methylguanine-DNA Methyltransferase P140K Expression Level and Chemoprotection of Hematopoietic Stem Cells (2008)

Retroviral-mediated delivery of the P140K mutant O(6)-methylguanine-DNA methyltransferase (MGMT(P140K)) into hematopoietic stem cells (HSC) has been proposed as a means to protect against dose-limiting myelosuppressive toxicity ensuing from chemotherapy combining O(6)-alkylating agents (e.g., temozolomide) with pseudosubstrate inhibitors (such as O(6)-benzylguanine) of endogenous MGMT. Because detoxification of O(6)-alkylguanine adducts by MGMT is stoichiometric, it has been suggested that higher levels of MGMT will afford better protection to gene-modified HSC. However, accomplishing this goal would potentially be in conflict with current efforts in the gene therapy field, which aim to incorporate weaker enhancer elements to avoid insertional mutagenesis. Using a panel of self-inactivating gamma-retroviral vectors that express a range of MGMT(P140K) activity, we show that MGMT(P140K) expression by weaker cellular promoter/enhancers is sufficient for in vivo protection/selection following treatment with O(6)-benzylguanine/temozolomide. Conversely, the highest level of MGMT(P140K) activity did not promote efficient in vivo protection despite mediating detoxification of O(6)-alkylguanine adducts. Moreover, very high expression of MGMT(P140K) was associated with a competitive repopulation defect in HSC. Mechanistically, we show a defect in cellular proliferation associated with elevated expression of MGMT(P140K), but not wild-type MGMT. This proliferation defect correlated with increased localization of MGMT(P140K) to the nucleus/chromatin. These data show that very high expression of MGMT(P140K) has a deleterious effect on cellular proliferation, engraftment, and chemoprotection. These studies have direct translational relevance to ongoing clinical gene therapy studies using MGMT(P140K), whereas the novel mechanistic findings are relevant to the basic understanding of DNA repair by MGMT.
Bacterial penetration of pocket soft tissues in chronic adult and juvenile periodontitis cases (1987)

This study investigates bacterial invasion of the soft tissue walls of deep pockets from cases with adult (AP) and juvenile periodontitis (JP). Transmission electron microscopy was used to examine pocket soft tissue walls removed from extracted teeth from 5 patients with AP and 2 patients with JP. Bacteria were sparse throughout the epithelium and connective tissue, regardless of the level of tissue breakdown. However many inflammatory cells were seen, and these did appear to be located in regions of marked collagen loss. Accumulations of large numbers of bacteria were extremely rare and found only on the epithelial surface or in artefactual spaces within the deeper tissues. The findings indicate that the tissue destruction associated with periodontitis is not directly related to bacterial invasion. The sparse organisms within the pocket tissues probably result from passive entry rather than an invasive action. Under these circumstances, it would seem reasonable to suggest that bacterial metabolic products rather than the micro-organisms themselves penetrate the tissues in periodontitis.
Acoustic-jet plating of gold and copper at 7.5 MHz (1987)

We describe a new type of jet plating that uses a focused high-frequency sound field directed through the center of the jet. The acoustic jet results in an improved morphology for gold and copper depositions although plating rates are not enhanced. Four-point probe measurements of acoustic-jet plated copper lines show up to a 50% decrease in electrical resistivity compared to jet plated deposits.
Importance of occlusion aspects in the completion of orthodontic treatment (2007)

The purpose of this study was to address the therapeutic goals regarding the static and functional occlusion in the completion of orthodontic treatment. For such purpose, a study population comprising 20 female treated Class II malocclusion subjects with an initial mean age of 11 years underwent a two-phase treatment (orthopedics and orthodontics). The patients were diagnosed in centric relation and were treated according to the six keys for normal occlusion and functional occlusal parameters (centric relation, vertical dimension, lateral and anterior guidances, occlusal contacts and direction of forces applied on the teeth). After removal of fixed mechanics, retainers were installed and maintained for two years. Five years after orthodontic completion, the occlusal stability of the patients was evaluated regarding molar relationship and overjet, measured in dental casts. All subjects maintained the normal molar relationship and correct overjet achieved at the end of treatment, indicating a fair level of occlusal stability. The importance of the criteria of the ideal functional occlusion to ensure a better stability after completion orthodontic treatment will be discussed in detail in this paper. In addition, some clinical situations in which localized adjustments are indicated for occlusal refinement will be described.
Removal of the outer Kdo from Helicobacter pylori lipopolysaccharide and its impact on the bacterial surface (2010)

Helicobacter pylori produces a unique surface lipopolysaccharide (LPS) characterized by strikingly low endotoxicity that is thought to aid the organism in evading the host immune response. This reduction in endotoxicity is predicted to arise from the modification of the Kdo-lipid A domain of Helicobacter LPS by a series of membrane bound enzymes including a Kdo (3-deoxy-d-manno-octulosonic acid) hydrolase responsible for the modification of the core oligosaccharide. Here, we report that Kdo hydrolase activity is dependent upon a putative two-protein complex composed of proteins Hp0579 and Hp0580. Inactivation of Kdo hydrolase activity produced two phenotypes associated with cationic antimicrobial peptide resistance and O-antigen expression. Kdo hydrolase mutants were highly sensitive to polymyxin B, which could be attributed to a defect in downstream modifications to the lipid A 4'-phosphate group. Production of a fully extended O-antigen was also diminished in a Kdo hydrolase mutant, with a consequent increase in core-lipid A. Finally, expression of O-antigen Lewis X and Y epitopes, known to mimic glycoconjugates found on human tissues, was also affected. Taken together, we have demonstrated that loss of Kdo hydrolase activity affects all three domains of H. pylori LPS, thus highlighting its role in the maintenance of the bacterial surface.
Radiotherapeutic Options for Hepatocellular Carcinoma with Portal Vein Tumor Thrombosis (2014)

Portal vein tumor thrombosis (PVTT) is a common paraneoplastic condition in advanced primary hepatocellular carcinoma or hepatobiliary tract malignancies. Tumors with PVTT are frequently associated with adverse and aggressive features such as intrahepatic tumor dissemination, early treatment failure, or deterioration of hepatic function. Therefore, the treatment outcomes for PVTT in historical series are often dismal and discouraging. More recently, beneficial effects and excellent outcomes of external beam radiation therapy (EBRT) for treating this disease have been reported, and the use of EBRT is becoming more common because of the non-invasive nature of RT and rapid advances in RT technology. We hope to be able to cure this devastating condition in the near future with more advanced and efficacious disease management strategies. The current status and clinical trial results for EBRT as a promising treatment option for managing PVTT will be discussed here.
Tortoise: Interactive system configuration repair (2017)

System configuration languages provide powerful abstractions that simplify managing large-scale, networked systems. Thousands of organizations now use configuration languages, such as Puppet. However, specifications written in configuration languages can have bugs and the shell remains the simplest way to debug a misconfigured system. Unfortunately, it is unsafe to use the shell to fix problems when a system configuration language is in use: a fix applied from the shell may cause the system to drift from the state specified by the configuration language. Thus, despite their advantages, configuration languages force system administrators to give up the simplicity and familiarity of the shell. This paper presents a synthesis-based technique that allows administrators to use configuration languages and the shell in harmony. Administrators can fix errors using the shell and the technique automatically repairs the higher-level specification written in the configuration language. The approach (1) produces repairs that are consistent with the fix made using the shell; (2) produces repairs that are maintainable by minimizing edits made to the original specification; (3) ranks and presents multiple repairs when relevant; and (4) supports all shells the administrator may wish to use. We implement our technique for Puppet, a widely used system configuration language, and evaluate it on a suite of benchmarks under 42 repair scenarios. The top-ranked repair is selected by humans 76% of the time and the human-equivalent repair is ranked 1.31 on average.
National and State Estimates of the Numbers of Adults and Children with Active Epilepsy — United States, 2015 (2017)

Epilepsy, a brain disorder leading to recurring seizures, has garnered increased public health focus because persons with epilepsy experience pronounced and persistent health and socioeconomic disparities despite treatment advances, public awareness programs, and expanded rights for persons with disabilities (1,2). For almost all states, epilepsy prevalence estimates do not exist. CDC used national data sources including the 2015 National Health Interview Survey (NHIS) for adults (aged ≥18 years), the 2011-2012 National Survey of Children's Health (NSCH), and the 2015 Current Population Survey data, describing 2014 income levels, to estimate prevalent cases of active epilepsy, overall and by state, to provide information for state public health planning. In 2015, 1.2% of the U.S. population (3.4 million persons: 3 million adults and 470,000 children) reported active epilepsy (self-reported doctor-diagnosed epilepsy and under treatment or with recent seizures within 12 months of interview) or current epilepsy (parent-reported doctor-diagnosed epilepsy and current epilepsy). Estimated numbers of persons with active epilepsy, after accounting for income and age differences by state, ranged from 5,900 in Wyoming to 427,700 in California. NHIS data from 2010-2015 indicate increases in the number of persons with active epilepsy, probably because of population growth. This study provides updated national and modeled state-specific numbers of active epilepsy cases. Public health practitioners, health care providers, policy makers, epilepsy researchers, and other epilepsy stakeholders, including family members and people with epilepsy, can use these findings to ensure that evidence-based programs meet the complex needs of adults and children with epilepsy and reduce the disparities resulting from it.