gebhart/patrepeval huggingface dataset:
Groundwater-derived nutrient and trace element transport to a nearshore Kona coral ecosystem: Experimental mixing model results (2016)

The groundwater influenced coastal waters along the arid Kona coast ofthe Big Island, Hawai’i. A salinity-and phase partitioning-based mixing experiment was constructed using contrasting groundwater endmembers along the arid Konacoast of the Big Island, Hawai’i and local open seawater to better understand biogeochemical and physicochemical processes that influence the fate of submarine groundwater discharge (SGD)-derived nutrients and trace elements. Treated wastewater effluent was the main source for nutrient enrichment downstream at the Honokōhau Harbor site. Conservative mixing for some constituents, such as nitrate + nitrite, illustrate the effectiveness of physical mixing to maintain oceanic concentrations in the colloid (0.02–0.45 μm) and truly dissolved (<0.02 μm) forms. In contrast, the nonconservative behavior of phosphate highlights the importance of surface complexation reactions that can lead to higher concentrations based on conservative mixing alone. Results from this physiochemical mixing experiment demonstrate how relative availability of P can shift with adsorption behavior, affecting the mobility of phosphate in the environment. With a proposed 8-hectare wastewater treatment facility (WWTF) to be constructed upslope of the Kaloko-Honokōhau National Historical Park (NHP), treated effluent is projected to add additional nutrients. Combined with high permeability, rapid discharge, and increased nutrient loading SGD will likely continue to serve as a persistent source of nutrients and potential contaminant to coral ecosystems.
Light, Color & Presence (2002)

Through the investigation of indirect light, reflected color, and geometric construction, and by the awareness and understanding of what allows for experiences that engage the human emotion, this thesis offers a project which has the power and presence to move the soul.
Guillain - Barré syndrome (1999)

The concepts of Guillain-Barré syndrome have changed substantially over the last 10 years, and the last 2 years have been no exception. Guillain-Barré syndrome is now recognized as a heterogeneous disorder with many clinical manifestations. Most current investigations are centered on the hypothesis of molecular mimicry. The major challenge now is to identify the precise mechanisms of nerve fiber injury and to determine how to prevent immune injury.
Accurate 3D acquisition of freely moving objects (2004)

This paper presents a new acquisition method for 3D laser scanners that combines imaging, fast geometrical object tracking, and automatic pose estimation to register range profiles of freely moving objects. The method was developed to solve the constraint of rigidity between free-moving objects and a 3D scanner while preserving the accuracy of the range measurements. Rigidity constraint imposes that a 3D scanner or any external positioning devices must be perfectly stable relative to the object during scanning. This is often impossible for moving structures such as when using scaffolding, industrial conveyers, or robotic arms. The method starts by creating a rough, partial, and distorted estimate of the model of the object from an initial subset of sparse range data. Then, it recursively improves and refines the model by adding new range information. In parallel, real-time tracking of the object is performed to center the scan on the object. A high-resolution and accurate 3D model of a free-floating object, and real-time tracking of its position is obtained.
Immunoglobulin Production in Man Stimulated by an Orally Administered Bacterial Lysate (1980)

The concentrations of secretory immunoglobulins in the saliva, and of immunoglobulin in the serum, have been measured by the radial immunodiffusion method in 12 healthy volunteers, before and after oral administration of Broncho-Vaxom which is a lysate of bacteria that usually cause infection in the upper respiratory tract. The mean concentration of secretory IgA in the saliva was increased by over 100% after the 10-day administration of the product. This increase was statistically significant between the 20th and 33rd day after the beginning of the treatment (p < 0.05). It fell to a normal level after a month in 4 subjects who received one treatment course only. In 8 subjects who received a second treatment course beginning 1 month after termination of the first course, the high concentration of IgAs in the saliva persisted for at least 3 months. A significant increase in the serum concentrations of IgG of about 50% and of IgM of at least 100% above the initial level was observed in the treated subjects in the time between day 35 and 5 months after the beginning of the experiment (p < 0.05).
<i>Dactylella Oviparasitica</i> , A New Fungal Parasite of <i>Meloidogyne</i> Eggs (1978)

SUMMARYDactylella oviparasitica is described as a new species. The species is distinctive in that fusiform, multiseptate conidia are borne on single sporogenous cells which function as short conidiophores. Relatively complex media are required for growth and sporulation of D. oviparasitica, and the fungus also requires light for sporulation. Dactylella oviparasitica was isolated from root-knot nematode (Meloidogyne sp.) egg masses and is capable of actively parasitizing eggs of the nematode.
Ultra wideband technology and its applications (2008)

The demand for wireless wideband communications is rapidly increasing due to the need to support more users and to provide more information with higher data rates. Ultra wideband (UWB) technology based on the use of very narrow pulses on the order of nanoseconds, covering a very wide bandwidth in the frequency domain, could be a possible solution to this problem. UWB is a wireless technology developed to transfer data at high rates over very short distances at very low power densities and an area of immense current interest, with numerous potential applications. This paper presents the currently UWB technology and its potential applications. How this technology implemented without causing interference to other existing communication is also discussed. The advantages and disadvantages of this technology are looked into deep as well.
THE EPIDEMIOLOGY OF SERUM SEX HORMONES IN POSTMENOPAUSAL WOMEN (1989)

Serum sex hormones may be related to the risk of several diseases in postmenopausal women. In the current report, the authors examined the epidemiology of serum sex hormones in 176 healthy, white postmenopausal women (mean age 58 years) recruited from the metropolitan Pittsburgh, Pennsylvania, area. The data were collected during 1982-1983; none of the women were on estrogen replacement therapy. Serum concentrations of estrone, estradiol, testosterone, and androstenedione were measured by a combination of extraction, column chromatography, and radioimmunoassay. Neither age nor time since menopause was a significant predictor of sex hormones. The degree of obesity was a major determinant of estrone and estradiol. The estrone levels of obese women were about 40% higher than the levels of nonobese women. There was a weak relation between obesity and the androgens. Cigarette smokers had significantly higher levels of androstenedione than nonsmokers, with little difference in serum estrogens between smokers and nonsmokers. Both estrone and estradiol levels tended to decline with increasing alcohol consumption. Physical activity was an independent predictor of serum estrone. More active women had lower levels of estrone. There was a positive relation of muscle strength with estrogen levels. The data suggest interesting relations between environmental and lifestyle factors and serum sex hormones. These environmental and lifestyle factors are potentially modifiable and, hence, if associations between sex hormones and disease exist, modification of these factors could affect disease risks.
Role of the N‐terminus in the structure and stability of chicken annexin V (1997)

The role of the short N-terminal region of chicken annexin V in the maintenance of the protein structure and its influence in the conformation of the calcium binding regions was analyzed. The N-terminal domain is not essential for protein folding, wild-type and dnt-annexin V showing almost identical secondary structures. However, the partial truncation of the N-terminus significantly decreases the melting temperature of the protein and induces the partial exposure of Trp187 which is normally located in a hydrophobic pocket of the calcium binding region of domain 3 of annexin V in the Ca2+-free form.
Polymorphism of the p53 gene within the codon 72 in lung cancer patients. (2001)

We tested the codon 72 single nucleotide polymorphism (SNP) of the tumor suppressor gene p53 for association with lung cancer. In our hospital-based case-control study, 168 lung cancer patients (134 males and 34 females) and 148 controls without malignant diseases were recruited. The genotype characteristics were determined by PCR-based RFLP method using DNA extracted from peripheral blood. Only in lung cancer patients but not in the controls we found both significant decrease of A1 allele of the p53 codon 72 (p=0.024, OR 0.56, 95% CI 0.43-0.72) and A1/A1 homozygous genotype (p=0.006, OR 0.27,95% CI 0.15-0.51). The results of this study suggest a protective effect of A1 allele against lung cancer.
Impuestos y terratenientes en la Argentina: un balance (2015)

En este artí­culo se ofrece un balance de lo que sabemos –y de lo que aún desconocemos- sobre la historia de la relación entre los impuestos y los productores rurales en la Argentina contemporánea. Se lleva a cabo un recorrido por la historiografí­a sobre los impuestos al mundo agrario en los siglos XIX y XX tanto en el plano nacional como en el provincial y se señalan los aspectos que aún necesitan mayor investigación en este campo.
The antimicrobial activity of mecillinam, nitrofurantoin, temocillin and fosfomycin and comparative analysis of resistance patterns in a nationwide collection of ESBL-producing <i>Escherichia coli</i> in Norway 2010–2011 (2015)

Overall, the in vitro susceptibility to nitrofurantoin, fosfomycin, mecillinam and temocillin was high, indicating that these drugs are good options for treating uncomplicated urinary tract infections caused by ESBL-producing E. coli.
Unsupervised Multi-Spectral Satellite Image Segmentation Combining Modified Mean-Shift and a New Minimum Spanning Tree Based Clustering Technique (2013)

An unsupervised object based segmentation, combining a modified mean-shift (MS) and a novel minimum spanning tree (MST) based clustering approach of remotely sensed satellite images has been proposed in this correspondence. The image is first pre-processed by a modified version of the standard MS based segmentation which preserves the desirable discontinuities present in the image and guarantees oversegmentation in the output. A nearest neighbor based method for estimating the bandwidth of the kernel density estimator (KDE) and a novel termination condition have been incorporated into the standard MS. Considering the segmented regions as nodes in a low level feature space, an MST is constructed. An unsupervised technique to cluster a given MST has also been devised here. This type of hybrid segmentation technique which clusters the regions instead of image pixels reduces greatly the sensitivity to noise and enhances the overall segmentation performance. The superiority of the proposed method has been experimented on a large set of multi-spectral images and compared with some well-known hybrid segmentation models.
[Lafora disease (progressive myoclonic epilepsy) in the Bassett hound--possibility of early diagnosis using muscle biopsy?]. (1991)

A progressive, hereditary disease has been observed in Basset Hounds, which appears clinically and neuromorphologically as myoclonus epilepsy (ME) and is similar to Lafora-Glueck disease in humans. The characteristic intracellular accumulations are typical myoclonus inclusion bodies. Four forms of inclusion bodies (IB) can be distinguished: a) very small, homogeneous, PAS-positive IBs, b) IBs consisting of an accumulation of PAS-positive particles, c) IBs with a concentric internal structure and a smooth or radial outer zone, and d) IBs with a homogeneous center, concentric layering, light intermediate zone, and a smooth outer zone. The occurrence of IBs is restricted largely to nerve cells. Here they are located mainly in pericarya, to a lesser extent in dendrites, and rarely in the neurites of the peripheral nervous system. IBs are also found in samples of skeletal muscle where they lie between myofibrils or beneath the sarcolemma. They are slightly basophilic in HE-staining and markedly PAS-positive. In transmission electron micrographs IBs prove to consist of chain-like filamentous material of varying density with focal concentrations. They are similar to IBs of the brain. Both muscular and neuronal IBs lack surrounding membranes. Diagnosis of Lafora disease in dogs by examination of muscle biopsies is discussed.
Benchtop mass spectrometry in clinical biochemistry (2003)

Mass spectrometry has for many years enabled us to rapidly identify and quantify many different compounds in biological samples. The equipment is currently available in specialist centres investigating metabolic disorders and in toxicology laboratories. Improvements in sample introduction and refinements in the mass spectrometry hardware now allow higher sample throughput without extensive sample purification. Many mass spectrometers are compact and operated by computers that also assist data handling. Mass spectrometry has the potential to change hospital laboratory operations generally. Consideration of the practical and financial aspects of its application may reveal cost-effective means of improving the specificity of analyte assay. Considerable advantages are expected in the analysis of metabolites and drugs and in proteomics.
Melt Strength, Maximum Output, and Physical Properties of SURPASS TM1 sLLDPE–LDPE Blends in Blown Film (2005)

The development of Advanced SCLAIRTECH TM2 dual reactor technology and a proprietary single-site catalyst by NOVA Chemicals Corporation provides unique opportunities for resin design. This results in single-site linear low-density polyethylene (sLLDPE) products with a unique set of properties. For blends of these sLLDPE with low density polyethylene (LDPE), several benefits arise. The melt strength is enhanced easily, which benefits maximum output on blown film lines. The equivalent crystallization temperatures of sLLDPE and LDPE are beneficial for processability and physical properties. Adding as little as 5% LDPE to sLLDPE results in a 50% increase in maximum output, while maintaining a high film performance.
Morphology and adhesion strength in electroless Cu metallized AlN substrate (1993)

The metallization of aluminum nitride substrates by electroless copper plating is investigated. The AlN substrate is etched by 4% NaOH to study the correlation between the adhesion strength and the surface roughness of etched AlN substrate. Both the as-received nonpolished and the polished AlN are studied. For the nonpolished substrate, the adhesion strength increases from 130 kg/cm/sup 2/ for the sample with an average surface roughness of 0.2 mu m to 230 kgf/cm/sup 2/ for one with an average surface roughness of 0.82 mu m. For the polished substrate, the adhesion strength reaches 271 kg/cm/sup 2/ with a surface roughness of 0.19 mu m. Mechanical interlocking is the major cause for the adhesion strength between the Cu and AlN substrates. The polished substrate that was subsequently etched could form fine cavities on the AlN surface, and the microetching effect resulted in a stronger mechanical interlocking, which increases the adhesion strength.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
A novel method of current equalization in LED strings based on simple linear circuit (2011)

This paper focuses on the problem of driving parallel strings of LEDs while ensuring current equalization between them. This issue is addressed in terms of proposing a small and simple linear topology that can be used on a number of series-associated LEDs, working as a constant current source for each string. Such topology employs a four-component circuit, with low dependence on transistor parameters, ensuring easy repeatability and good current regulation. Mathematical description of the circuit and experimental results are provided.
Experimental results of a dc glow discharge source with controlled plasma floating potential for plasma immersion ion implantation (2000)

A simple dc glow discharge with controlled plasma floating potential was applied as a novel source for plasma immersion ion implantation with excellent results. The glow discharge source is normally used for the conditioning of fusion device chambers, taking advantage of the available high accelerating potential which is necessary for the ion bombardment of the walls. Combining an electron-emitting hot filament with this source, it was possible to get a stable discharge at pressures as low as 8×10-4 mbar and, operating it with potentials lower then 70 V, it was possible to reduce the Si sample etching down to zero from 2500 Å seen at potentials of native 350 V, when exposure times of 750 min were used in the sample's surface subjected to plasma ion implantation of nitrogen. As a result, retained ion doses of 1.5×1017 cm-2 were obtained in etching-free Si surfaces.
Expression and purification of the cynR regulatory gene product: CynR is a DNA-binding protein (1993)

The CynR protein, a member of the LysR family, positively regulates the Escherichia coli cyn operon and negatively autoregulates its own transcription. By S1 mapping analysis, the in vivo cynR transcription start site was located 63 bp upstream of the cynTSX operon transcription start site. Topologically, the cynR and cynTSX promoters overlap and direct transcription in opposite directions. The CynR translation initiation codon was identified by oligonucleotide-directed mutagenesis, and the CynR coding sequence was cloned under the control of a T7 phage promoter. The CynR protein was stably expressed at a high level with a T7 RNA polymerase-T7 phage promoter system. Purification by ion-exchange chromatography, affinity chromatography, and ammonium sulfate fractionation yielded pure CynR protein. Gel shift assays confirmed that CynR is a DNA-binding protein like the other members of the LysR family. The CynR regulatory protein binds specifically to a 136-bp DNA fragment encompassing both the cynR and the cynTSX promoters.
Material Properties of a Sintered α-SiC (1997)

A self-consistent, single-valued representation of the major physical, mechanical, and thermal properties of a sintered α-SiC is presented. This comprehensive set of properties is achieved by focusing on a narrowly defined material specification in which boron and carbon are used as sintering aids to produce a dense ceramic (⩾98% of the theoretical maximum density) with a grain size of (6±2) μm. Such a representation is highly desirable in applications of concurrent engineering practices and for the increasing use of electronic processing of product specifications.
Long‐Term Comparison of Trace Organics Removal Performances Between Conventional and Membrane Activated Sludge Processes (2006)

The removal of trace organic compounds through membrane bioreactors (MBR) compared with a conventional wastewater treatment plant (WWTP) in a long-term study was investigated. Two MBR pilot plants were operated in parallel to a full-scale WWTP fed with the same municipal raw wastewater. Polar compounds (phenazone-type pharmaceuticals, their metabolites, and carbamazepine) and less polar estrogenic steroids (estradiol, estrone, and ethinylestradiol) were quantified. The removal rate of phenazone, propyphenazone, and formylaminoantipyrine by the conventional WWTP was less than 15%. Significantly higher removal rates (60 to 70%) started to be clearly monitored in the pilot plants after approximately 5 months. Higher removal rates coincided with higher temperatures in the summer. The conventional WWTP removed, on average, more than 90% of the natural steroids estrone and estradiol and approximately 80% of the synthetic ethinylestradiol. Approximately 99% of estradiol and estrone and approximately 95% of ethinylestradiol was eliminated by the MBR processes.
Development of biodegradable Zn-1X binary alloys with nutrient alloying elements Mg, Ca and Sr (2015)

Biodegradable metals have attracted considerable attentions in recent years. Besides the early launched biodegradable Mg and Fe metals, Zn, an essential element with osteogenic potential of human body, is regarded and studied as a new kind of potential biodegradable metal quite recently. Unfortunately, pure Zn is soft, brittle and has low mechanical strength in the practice, which needs further improvement in order to meet the clinical requirements. On the other hand, the widely used industrial Zn-based alloys usually contain biotoxic elements (for instance, ZA series contain toxic Al elements up to 40 wt.%), which subsequently bring up biosafety concerns. In the present work, novel Zn-1X binary alloys, with the addition of nutrition elements Mg, Ca and Sr were designed (cast, rolled and extruded Zn-1Mg, Zn-1Ca and Zn-1Sr). Their microstructure and mechanical property, degradation and in vitro and in vivo biocompatibility were studied systematically. The results demonstrated that the Zn-1X (Mg, Ca and Sr) alloys have profoundly modified the mechanical properties and biocompatibility of pure Zn. Zn-1X (Mg, Ca and Sr) alloys showed great potential for use in a new generation of biodegradable implants, opening up a new avenue in the area of biodegradable metals.
Toward a standard for remote microscope control systems (1998)

Abstract Remote access to scientific instruments provides a way to share a variety of valuable resources with a worldwide audience. By pooling these resources and providing a common network and user interfaces to these resources, science researchers and educators will have capabilities that no one institution could afford. The Microscope And Graphic Imaging Center (MAGIC) at California State University, Hayward (CSU Hayward) is developing a model for such a system. We are developing model software for interactive remote‐shared access to an unmodified Philips XL 40 scanning electron microscope (SEM). Located within the Department of Biological Sciences, MAGIC provides facilities and expertise in specimen preparation as well as providing remote access to researchers and educators over the Internet. We have used a wide range of networking technologies, including modem, ISDN, Ethernet, T1, and ATM to control the SEM, and a wide range of image transmission technologies, including closed circuit TV, compressed video over ATM, and digital imaging (Smith et al . 1996a,b,c). We have taken a modular approach to software control which allows us to arrange key pieces in a variety of ways on a number of different platforms. Results indicate that under the correct conditions, access to expensive and sensitive commercially available scientific equipment can be shared by large research, educational, and industrial communities. However, care must be taken to address issues of security, robustness, and performance. Plans are to incorporate remote access into university, community college, and high school use starting in 1998. Based upon this experience, we propose a framework for standardizing remote access to visual scientific equipment. This framework consists of three layers: (1) clients, (2) servers, and (3) instruments. This approach will allow a wide variety of equipment to be shared in a flexible and uniform manner.