gebhart/patrepeval huggingface dataset:
Does School Quality Matter? Returns to Education and the Characteristics of Public Schools in the United States (1992)

This paper estimates the effects of school quality--measured by the pupil/teacher ratio, average term length, and relative teacher pay--on the rate of return to education for men born between 1920 and 1949. Using earnings data from the 1980 census, the authors find that men who were educated in states with higher-quality schools have a higher return to additional years of schooling. Rates of return are also higher for individuals from states with better-educated teachers and with a higher fraction of female teachers. Holding constant school quality measures, however, the authors find no evidence that parental income or education affects average state-level rates of return. Copyright 1992 by University of Chicago Press.
Networked information services in context sensitive environments (2002)

The Sushi project was originally conceived and developed in the (Interval funded) Computer Related Design Research Studio at the Royal College of Art, London. Sushi was developed as a new way of sharing information between people in small groups and networks within the Royal College of Art. Our proposal for DIS2002 extends the Sushi system so that delegates and conference organisers can author and share information during the event.
Three dimensional reconstruction as an automaic modeling system (1993)

Research in three-dimensional (3D) scene reconstruction is aimed at developing techniques that enable a vision system to acquire 3D representations of its environment from sensory input. By introducing a new data structure, namely oriented surface models, this thesis presents a modeling system that is able not only to accumulate observed features from different views automatically, but also to recognize objects and retrieve processed information.
The oriented surface data structure is a modified surface modeling method. It describes scene objects with locally defined surface primitives, and specifies surface geometric locations and topographical relations with homogeneous transformations. Its viewpoint independent object representation makes reconstruction systems capable of accumulating and identifying spatial features during model building and model retrieving. And its weighted vector chains provide a useful clue for a system to automatically check the closure of boundary surfaces and to estimate optimal viewing directions.
The thesis briefly surveys issues of 3D reconstruction in the first several chapters, which includes techniques to extract and describe spatial features, build object models, and recognize objects. Following it are the description of the new data structure and a discussion of how it is applied to object reconstruction and recognition. The system has been simulated on SUN workstations with a group of graphics objects. The system's implementation and analysis, as well as experiments with real range images are discussed.
<title>Measurement of warpage of electronic packaging after machining by phase-shifting shadow moire method</title> (2002)

In this paper, phase-shifting moire method was employed to investigate the machining effect on the warpage of electronic packagings undergone thermal cycles. Four types of machined slots were tested and compared with the unmachined one. It was found that they all give significant improvement on the warpage. However, the crossed type slot gives the largest reduction of warpage.
1,3,5‐Trisubstituted hexahy drotriazines as mannich reagents. I. Preparation of secondary aminomethyl sulfide hydrochlorides (1971)

Abstract 1,3,5‐Trisubstituted hexahy drotriazines react with hydrogen chloride in the presence of anhydrous solvents to form useful intermediates for the introduction of the RNHCH 2 ‐ group into compounds which undergo the Mannich reaction. The effectiveness of the new aminomethyl‐ating agent has been demonstrated by the preparation of secondary aminomethyl sulfide hydro‐chlorides.
Comparative study of immunomodulating activity of Indian medicinal plants, lithium carbonate and glucan. (1988)

The protective effects of Asparagus racemosus (AR) and Tinospora cordifolia (TC) against myelosuppression induced by single doses of cyclophosphamide (CP) have been previously reported. Presented here are the results of a comparative study between AR, TC, glucan and lithium carbonate against the myelosuppressive effects of single and multiple doses of cyclophosphamide in mice. Cyclophosphamide was administered as a single dose 200 mg/kg subcutaneously to one group of mice, while a second group received 3 doses of 30 mg/kg intraperitoneally. Both groups received AR, TC and lithium orally for 15 days before CP. Glucan was administered intravenously in 3 doses, before cyclophosphamide in the first group and together with cyclophosphamide in the second group. In both groups peripheral and differential WBC counts were done before and after drug treatment and serially after cyclophosphamide injection. All four drugs produced leucocytosis with neutrophilia. When compared to control group, all 4 drugs prevented, to varying degrees, leucopenia produced by cyclophosphamide. We conclude, therefore, that both indigenous plants, AR and TC, are potent immunostimulants, with effects comparable to lithium and glucan. They need further evaluation in patients receiving cytotoxic drugs.
Effect of melatonin on the retinal glutamate/glutamine cycle in the golden hamster retina (2004)

Glutamate is the main excitatory neurotransmitter in the retina, but it is neurotoxic when present in excessive amounts. The metabolic dependence of glutamatergic neurons upon glia via the glutamate/glutamine cycle to provide the precursor for neurotransmitter glutamate is well established. Since melatonin has been shown to be neuroprotective in several systems, in the present report, its effect on the glutamate/glutamine cycle activity was examined in the golden hamster retina. Melatonin (0.1-10 nM) significantly increased retinal glutamine synthetase activity but it did not affect L-glutamine release. A characterization of the hamster retinal L-glutamine uptake mechanism was performed. This mechanism was partly Na+-dependent, and it was significantly inhibited by 2-aminobicyclo (2, 2, 1) heptane 2-carboxylic acid (BCH, a selective antagonists for the L-type system) and by alpha-(methylamino)-isobutyric acid (MeAIB, substrate characteristic for the A -type transporter) suggesting the coexistence of these transport systems in the hamster retina. Melatonin (0.1-10 nM) significantly increased total glutamine uptake as well as the BCH and the MeAIB-insensitive transporters activity. On the other hand, melatonin significantly decreased retinal glutaminase activity. On the basis of these results, it might be presumed that hamster retinal glutamate/glutamine cycle activity is regulated by physiological concentrations of melatonin. Furthermore, these findings suggest that a treatment with melatonin could be considered as a new approach to handling glutamate-mediated neuronal degeneration.
Exogenous Reinfection as a Cause of Late Recurrent Tuberculosis in the United States (2015)

Reinfection was the cause of 15% of late recurrent tuberculosis cases in this U.S. cohort. The proportion caused by reinfection increased to 60% in certain subpopulations, such as recent immigrants from Mexico, suggesting that, despite successful treatment for tuberculosis during their first episode, these individuals remain in a social environment where they are reexposed to M. tuberculosis. Public health interventions to prevent novel reinfection might require a broader focus in these communities.
Producing Tactile Maps Using New Inkjet Technology: an Introduction (2003)

AbstractAbstractThree common methods for producing tactile maps are mixed media, microcapsule paper and thermoform. This paper describes a new method for producing tactile diagrams using piezoelectric inkjet. To produce diagrams a photo-curing acrylic polymer ink is repeatedly printed onto a thermoplastic substrate and exposed to ultraviolet light which bonds the ink to the substrate and cures it solid. The speed and precision of the process means maps with fine, easily discriminated tactile features will be readily available to users. The new process will facilitate further psychological, psychophysical and cartographic research.
Leila Ahmed's Women and Gender in Islam (1970)

Ahmed, Leila. Women and Gender in Islam. New Haven: Yale University Press, 1992. ISBN 0-300-04942-0
Properties and fabrication of ytterbium-erbium co-doped silica fibres for high-power fibre lasers (1998)

The fabrication, properties and performance of ytterbium-erbium co-doped silica optical fibres for high-power lasers generating ultra-short pulses at when pumped at are described. The fibre cores composed of glass immobilizing the rare-earth ions are prepared by the modified solution-doping method. Improved sintering conditions have allowed us to increase the concentration to about 18 mol % and to prevent the depletion of this dopant in the central part of the core.
Studies on Redispersion and Stability of Platinum in Pt/MgO System during Oxygen Treatment at High Temperatures (1986)

Abstract Transmission Electron Microscopy and X‐ray Diffraction showed that high temperature oxygen treatment results in redispersion of Pt/MgO system. Two catalysts in this study were prepared by impregnation using H 2 PtCl 6 or Pt(C 5 H 7 O 2 ) 2 as the precursors and two MgO supports of different purity. Pt/MgO system indicated a high stability in oxygen at temperature ranging from 550 to 700°C.
Historical Review of Surgical Simulation—A Personal Perspective (2007)

Although simulation is relatively new to surgical education, there is a long history in many other disciplines, such as military, aviation, and nuclear power plant operations, among others. In the late 1980s these technologies began to be adapted to the surgical world, along with the new technology of virtual reality. This is a review of the introduction of manikins, computers, and virtual reality into education and training for surgical skills. Two concomitant revolutions occurred: objective assessment of surgical skills and converting training from the apprenticeship model to one of criterion-based training. A personal perspective on these developments adds information not previously published.
Treatment of mouse tumors with 7-con-O-methylnogarol and other analogs of the anthracycline antibiotic, nogalamycin. (1980)

The chemotherapeutic activity of analogs of the anthracycline antibiotic, nogalamycin, was investigated in the P388 and L1210 leukemias and the B16 melanoma in mice. Among the compounds tested, 7-con-O-methylnogarol was found to have superior activity. Depending on the route and schedule of administration, increases in lifespan (ILS) in excess of 100% were observed in all three tumor systems. Additional testing of 7-con-O-methylnogarol demonstrated significant activity in the murine colon 26 and colon 38 tumors and the CD8F1 mammary tumor. 7-Con-O-methylnogarol was not significantly effective against murine Lewis lung carcinoma, although ILSs of 38% and 29% were achieved in two experiments. Activity was observed against ip inoculated P388 leukemia after ip, sc, oral, and iv drug administration. 7-Con-O-methylnogarol was also highly active (ILS greater than or equal to 120%) after ip drug administration to mice with iv inoculated P388 leukemia. Significant ILS values resulted from a variety of schedules of administration against ip inoculated P388 leukemia and B16 melanoma. Experiments in which the time of single-dose administration was varied prior to the time of ip P388 leukemia inoculation showed that residual drug or bioactive drug-related materials remained in mice for 8 hours after 50 mg/kg administered ip and for 48 hours after 200 mg/kg administered sc.
End-stage renal disease patients: referral for transplantation. (1998)

Patients who receive kidney transplants have a higher quality of life, a less costly form of therapy, and less risk of death than those who are treated with dialysis. This success of transplantation and a simultaneous lack of success in increasing the number of cadaveric organ donors has created a supply-demand crisis. The United Network of Organ Sharing has attempted to develop a fair allocation system for placing patients on waiting lists for kidney transplantation. An increase in the number of organs available would allow physicians to transplant patients earlier in the time frame of their chronic disease.
FAST <sup>TM</sup> Slides: A Novel Surface for Microarrays (2000)

We have evaluated FAST slides, a glass slide with a microporous polymeric surface that is a suitable substrate for microarray technology. The surface is a nitrocellulose-based polymer that binds DNA and proteins in a noncovalent but irreversible manner. FAST slides are compatible with robotic systems currently used to create microarrays and can easily accommodate volumes of 0.03-2 nL/spot. Our data indicate that FAST slides have a much higher binding capacity for DNA and better spot-to-spot consistency than traditional poly-lysine-coated slides. In addition, FAST slides are well suited for fluorescent detection because of their relatively low light scatter and efficient retention of arrayed DNA. These properties translate into fluorescent sensitivity comparable to modified glass surfaces. FAST slides are also ideal for arraying proteins, making them the only substrate of their kind currently available for microarray applications.
Carpet Recycling: Determining the Reverse Production System Design (1999)

Abstract Roughly 4 billion pounds of carpet are disposed of in the United States each year. This carpet is composed of a significant fraction of nylon, polypropylene, and polyester fiber. A key limiting factor to recycling is effective design and development of the reverse production system to collect and reprocess this large volume of valuable material. A reverse production system is composed of material and chemical recycling functional elements interconnected by transportation steps. In this article, we develop a mixed-integer programming model to support decision-making in reverse production system design. To illustrate its use and applicability, we apply the model to a representative U.S. carpet recycling industrial case study. The overall economic feasibility of recycling is strongly dependent on the volumes that can be expected from investments in collection infrastructure. The geographic location of processing centers influences the network economics, and the subdivision of recycling tasks to avoid the shipment of low value material is proposed as an effective strategy for carpet recycling.
A CRegs implementation study based on the MIPS-X RISC processor (2003)

Most high-performance computers use registers to store program variables and temporaries for fast access, but many variables cannot be allocated to registers because of ambiguous aliases. Cache can be used to store these variables but does not provide the advantages of registers. A memory structure, CRegs, proposed by H. Dietz and C. Chi, (1988), provides the advantages of registers for variables previously allocated to cache. The feasibility of adding a CRegs file to the MIPS-X processor by providing the organization, high-level timing, and key circuits necessary to implement the feature is explored. This design allows a CReg file to be added to the processor without increasing the cycle time or imposing an exorbitant hardware cost.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
ANTIOXIDANT CAPACITY AND FLAVOINOIDS, TRITERPENOIDS, POLYPHENOL, POLYSACCHARIDE CONTENT FROM TUBERS OF TWO AMORPHOPHALLUS SPECIES (ARACEAE) (2020)

A. opertus and A. lanceolatus are two rare species of the Araceae family and are recognized as endemic species of Vietnam. Due to lacking samples of these species, the bioactivity and phytochemicals of these species have not been elucidated yet. This study has investigated for the first time the antioxidant capacity and flavoinoid, triterpenoid, polyphenol, polysaccharide contents of A. opertus and A. lanceolatus tubers using spectrophotometric assay (UV-VIS) and UVWin6 Software v6.0.0, which is important step for further utilization and application of these species. The results showed that A. opertus tuber contained several bioactive compounds, such as quercetin (0.313 0.009 mg QE/g dry mass), oleanolic acid (0.020 0.001 mg OAE/g dry mass), gallic acid (0.026  0.001 mg GAE/g dry mass), with the polysaccharide content about 1.653  0.157 mg GE/g dry mass, and the strong antioxidant capacity (DPPH scavenging activity about 0.027  0.001 mg Trolox/g dry mass and ABTS scavenging activity about 0.017  0.001 mg Trolox/g dry mass). On the other hand, A. lanceolatus tuber comprised about quercetin (0.032  0.004 mg QE/g dry mass), oleanolic acid (0.0109  0.0003 mg OAE/g dry mass), gallic acid (0.029  0.003 mg GAE/g dry mass), with the lower polysaccharide content (0.0131  0.0003 mg GE/g dry mass) amd antioxidant capacity (DPPH scavenging activity about 0.017  0.001 mg Trolox/g dry mass and ABTS scavenging activity about 0.012  0.001 mg Trolox/g dry mass)
Effect of Biodiesel on Oxidation Stability, Detergency and Antiwear Ability of Diesel Oil (2011)

Different contents of biodiesel and petrodiesel were incorporated into diesel engine oils. The oxidative stability, detergency and antiwear performance of the formulated diesel oils were evaluated. The results indicated that, compared with petrodiesel, biodiesel was more liable to promote oxidation degradation of diesel oils, leading to worse oxidative stability, detergency and antiwear ability of the oils.
How to encourage emergent writing (1999)

When young children come to nursery they have already taken major steps towards the mastery of spoken language. Without any formal instruction children's ability to speak fluently emerges gradually as they unconsciously construct their own language rules, test them out and refine them. The ability to speak correctly grows as children observe, listen and interact with their environment. Eventually, and naturally, children learn to talk - without drills or vocabulary quizzes.
Media Space and Communicative Asymmetries: Preliminary Observations of Video-Mediated Interaction (1992)

Abstract Despite the growing interest in using audio-visual technologies to support communication and collaborative work among individuals in different locations, we still have relatively little understanding of the organization of video-mediated interaction. In the following article, we discuss some findings of recent research concerning interpersonal communication in a sophisticated multimedia office environment. Based on the detailed naturalistic analysis of individuals collaborating on various tasks during their day-to-day working lives, we explore the extent to which the media space provides a satisfactory means for interpersonal communication and ordinary sociability. In particular, the research suggests that audio-visual technology introduces certain asymmetries into interpersonal communication that can transform the impact of visual and vocal conduct. These communicative asymmetries may be consequential for the design and implementation of audio-visual infrastructures used to support informal sociability and collaborative work.
A review on synthesis and properties of polymer functionalized graphene (2013)

This review highlights the functionalization chemistry of graphene with polymers by both covalent and non-covalent approaches. Due to the strong cohesive interactions graphene platelets agglomerate, causing difficulty to attain its optimum properties. The covalent functionalization is illuminated both from ‘grafting to’ and ‘grafting from’ techniques discussing the merits and demerits of the processes. The controlled free radical polymerization techniques used for this purpose e.g. ATRP, SET–LRP and RAFT etc. are discussed along with the conventional free radical polymerization. We have also noted the various approaches used in non-covalent functionalization e.g. π–π, H-bonding and hydrophobic interactions. These functionalized graphenes show good and stable dispersion facilitating composite formation with commodity plastics enhancing it's mechanical, thermal and conductivity properties. The optoelectronic properties of these functionalized graphene are interesting to fabricate sensors, photovoltaics, supercapacitors etc. A short account of the properties of these modified graphenes is also embodied with an emphasis on different area where future developments are expected.
Evaluación y mejora de la satisfacción del cliente: aplicación en la DTHO en el servicio Nauta Hogar (2019)

espanolActualmente existe un interes acrecentado por parte de la Empresa de Telecomunicaciones y Ministerio de las Comunicaciones (MINCOM) de trazar estrategias para elevar la calidad de los servicios de Internet sobre la base de una mayor toma de conciencia de la importancia que reviste para el desarrollo y la construccion del futuro. En tal sentido, la evaluacion y mejora de la calidad se convierte en una imperiosa necesidad y contribuye a que los directivos cambien su forma de dirigir. La investigacion se realiza en la Division Territorial de la Empresa de Telecomunicaciones de Cuba S.A (ETECSA) en Holguin con el objetivo de aplicar un procedimiento que acceda a la evaluacion y mejora de la satisfaccion de los clientes externos con relacion a los servicios ofrecidos de conexion a Internet. Con el fin de desplegar el objetivo propuesto se emplean diversos metodos teoricos, empiricos y tecnicas tales como la revision de literatura, encuestas, entrevistas, la utilizacion del Paquete Estadistico SPSS 21.0 ,entre otros que auxiliaron al progreso de la investigacion. EnglishCurrently there is a constantly growing interest from the Telecommunication Enterprise and the Ministry of Communications (MINCOM) for tracing strategies to elevate the quality of Internet services, over the basis of a bigger acknowledge of the matter involved for construction and development of a future. In such a subject, the evaluation and improvement of quality focused on management became an imperious need that contribute to a change of management directives guideline techniques. Considering the foretold, the investigation focus on the Territorial Division of the Telecommunication Enterprise of Cuba S.A. (ETECSA) in Holguin, with the goal to apply a procedure that access to an evaluation and improvement of the external client satisfaction, in relation to the Internet connection services offered. With the end to deploy the referred objective were employed several theoretical, empirics and techniques methods, such as literature reviews, interviews, questionnaires, and the use of SPSS 21.0, which is a Statistical Software, among others who help the progress of the investigation.