LLukas22/scidocs huggingface dataset:
Low Pressure Storage of Natural Gas for Vehicular Applications

Natural gas is an attractive fuel for vehicles because it is a relatively clean-burning fuel compared with gasoline. Moreover, methane can be stored in the physically adsorbed state [at a pressure of 3.5 MPa (500 psi)] at energy densities comparable to methane compressed at 24.8 MPa (3600 psi). Here we report the development of natural gas storage monoliths [1]. The monolith manufacture and activation methods are reported along with pore structure characterization data. The storage capacities of these monoliths are measured gravimetrically at a pressure of 3.5 MPa (500 psi) and ambient temperature, and storage capacities of >150 V/V have been demonstrated and are reported.
Is the ‘Darwin-Marx correspondence’ authentic?

Summary For many years there has been a good deal of scholarly and ideological writing on the correspondence which is said to have taken place between Karl Marx and Charles Darwin. The two presumed letters from Charles Darwin to Karl Marx have been published several times, and their significance appraised. In this article their authenticity as letters to Marx is discussed and questioned, and the possibility that Edward Aveling is the addressee of at least one of them is argued.
Ant-colony algorithms for permutation flowshop scheduling to minimize makespan/total flowtime of jobs

The problem of scheduling in permutation flowshops is considered with the objective of minimizing the makespan, followed by the consideration of minimization of total flowtime of jobs. Two ant-colony optimization algorithms are proposed and analyzed for solving the permutation flowshop scheduling problem. The first algorithm extends the ideas of the ant-colony algorithm by Stuetzle [Proceedings of the 6th European Congress on Intelligent Techniques and Soft Computing (EUFIT 98), vol. 3, Verlag Mainz, Aachen, Germany, 1998, p. 1560], called max–min ant system (MMAS), by incorporating the summation rule suggested by Merkle and Middendorf [Proceedings of the EvoWorkshops 2000, Lecture Notes in Computer Science No. 1803, Springer-Verlag, Berlin, 2000, p. 287] and a newly proposed local search technique. The second ant-colony algorithm is newly developed. The proposed ant-colony algorithms have been applied to 90 benchmark problems taken from Taillard [European Journal of Operational Research 64 (1993) 278]. First, a comparison of the solutions yielded by the MMAS and the two ant-colony algorithms developed in this paper, with the heuristic solutions given by Taillard [European Journal of Operational Research 64 (1993) 278] is undertaken with respect to the minimization of makespan. The comparison shows that the two proposed ant-colony algorithms perform better, on an average, than the MMAS. Subsequently, by considering the objective of minimizing the total flowtime of jobs, a comparison of solutions yielded by the proposed ant-colony algorithms with the best heuristic solutions known for the benchmark problems, as published in an extensive study by Liu and Reeves [European Journal of Operational Research 132 (2001) 439], is carried out. The comparison shows that the proposed ant-colony algorithms are clearly superior to the heuristics analyzed by Liu and Reeves. For 83 out of 90 problems considered, better solutions have been found by the two proposed ant-colony algorithms, as compared to the solutions reported by Liu and Reeves. 2003 Elsevier B.V. All rights reserved.
Tolerance of a Salsola kali extract standardized in biological units administered by subcutaneous route. Multicenter study.

BACKGROUND
Sensitivity to Salsola kali is a frequent cause of allergic respiratory disease in various regions of Spain. However, there are very few articles in which this allergen has been studied.


METHODS AND RESULTS
In order to evaluate the tolerance of this extract, a prospective study has been performed. This study was observational, multi-centred and open, involving 88 patients with allergic respiratory disease due to sensitivity to Salsola, aged between 5 and 52 years. The administration of the extract was performed subcutaneously, through one of two treatment schedules: cluster (8 doses in 4 visits) or conventional (13 doses in 12 visits). A total of 42 adverse reactions were registered, in 26 patients (35 local reactions in 21 patients and 7 systemic reactions in 6 patients). Among the 7 systemic reactions, 4 were registered with the cluster protocol and 2 with the conventional protocol (p = 0.329). In no patients were serious adverse reactions registered.


CONCLUSION
The subcutaneous administration of a Salsola extract is safe and well tolerated, both when administered using a conventional schedule and when using a cluster schedule.
Bismuth Borate Glasses for Photonic Applications: A Review

This paper presents that the rare earth ions doped Bismuth Borate glasses possess excellent structural, optical, thermal properties that make it a strong candidate for photonic devices. Several research papers concluded their physical properties and JuddOfelt intensity parameter ( ) , , 6 4 2    . These values used to analyze the emission spectrum of the glass matrix. Ultraviolet to Near Infrared measurements evaluated for the glass samples. CIE 1931 color chromaticity coordinates diagram have been confirms the emission color of the glass. Elastic and bulk properties analyzed by ultrasonic velocity method. Elastic moduli and atomic vibrations determined by the Debye temperature (θD) and it is plays an important role solid state materials. We aim to provide a review of bismuth borate glass materials for light emitting diode and laser sources.
A NOVEL SOFT-SWITCHING BUCK CONVERTER WITH COUPLED INDUCTOR Josna

A novel topology for a soft-switching buck dc– dc converter with a coupled inductor is proposed. The softswitching buck converter has advantages over the traditional hardswitching converters. The most significant advantage is that it offers a lower switching loss. This converter operates under a zero-current switching condition at turn on and a zerovoltage switching condition at turn off. It presents the circuit configuration with a least components for realizing soft switching. Because of soft switching, the proposed converter can attain a high efficiency under heavy load conditions. Likewise, a high efficiency is also attained under light load conditions, which is significantly different from other soft switching buck converters. Keywords— Buck converter, coupled inductor, soft switching, zero-current switching (ZCS), zero-voltage switching (ZVS).
Linear gate assignment: a fast statistical mechanics approach

This paper deals with the problem of linear gate assignment in two layout styles: onedimensional logic array, and gate matrix layout. The goal is to find the optimal sequencing of gates in order to minimize the required number of tracks, and thus to reduce the overall circuit layout area. This is known to be an NP-Hard optimization problem, for whose solution no absolute approximation algorithm exists. Here we report the use of a new optimization heuristic derived from statistical mechanics the microcanonical optimization algorithm, μO to solve the linear gate assignment problem. Our numerical results show that μO compares favorably with at least five previously employed heuristics: simulated annealing, the unidirectional and the bidirectional Hong construction methods, and the artificial intelligence heuristics GM_Plan and GM_Learn. Moreover, in a massive set of experiments with circuits whose optimal layout is not known, our algorithm has been able to match and even to improve, by as much as 7 tracks, the best solutions known so far. TCAD
Epstein–Barr virus promotes genomic instability in Burkitt's lymphoma

Epstein–Barr virus (EBV) has been implicated in the pathogenesis of human malignancies but the mechanisms of oncogenesis remain largely unknown. Genomic instability and chromosomal aberrations are hallmarks of malignant transformation. We report that EBV carriage promotes genomic instability in Burkitt's lymphoma (BL). Cytogenetic analysis of EBV− and EBV+ BL lines and their sublines derived by EBV conversion or spontaneous loss of the viral genome revealed a significant increase in dicentric chromosomes, chromosome fragments and chromatid gaps in EBV-carrying cells. Expression of EBV latency I was sufficient for this effect, whereas a stronger effect was observed in cells expressing latency III. Telomere analysis by fluorescent in situ hybridization revealed an overall increase of telomere size and prevalence of telomere fusion and double strand-break fusion in dicentric chromosomes from EBV+ cells. Phosphorylated H2AX, a reporter of DNA damage and ongoing repair, was increased in virus-carrying cells in the absence of exogenous stimuli, whereas efficient activation of DNA repair was observed in both EBV+ and EBV− cells following treatment with etoposide. These findings point to induction of telomere dysfunction and DNA damage as important mechanisms for EBV oncogenesis.
Dutch Disease Scare in Kazakhstan: Is it Real?

In this paper we explore the evidence that would establish that Dutch disease is at work in, or poses a threat to, the Kazakh economy. Assessing the mechanism by which fluctuations in the price of oil can damage non-oil manufacturing—and thus long-term growth prospects in an economy that relies heavily on oil production—we find that non-oil manufacturing has so far been spared the perverse effects of oil price increases from 1996 to 2005. The real exchange rate in the open sector has appreciated over the last couple of years, largely due to the appreciation of the nominal exchange rate. We analyze to what extent this appreciation is linked to movements in oil prices and oil revenues. Econometric evidence from the monetary model of the exchange rate and a variety of real exchange rate models show that the rise in the price of oil and in oil revenues might be linked to an appreciation of the U.S. dollar exchange rate of the oil and non-oil sectors. But appreciation is mainly limited to the real effective exchange rate for oil sector and is statistically insignificant for non-oil manufacturing. JEL Code: F31, F36, O11. Balázs Égert Austrian National Bank Foreign Research Division Otto-Wagner-Platz 3 1090 Vienna Austria balazs.egert@oenb.at Carol S. Leonard St Antony’s College University of Oxford 62 Woodstock Road Oxford OX2 6JF United Kingdom carol.leonard@economics.oxford.ac.uk We would like to thank Jesús Crespo-Cuaresma, Sabit Khakimzhanov, Iskander Karibzhanov, Mathilde Maurel, Saulesh Yessenova, participants at a seminar at the Oesterreichische Nationalbank and at the workshop on the impact of the oil boom in the Caspian Basin held at the University of Paris I-Sorbonne in June 2006 and four anonymous referees for helpful comments and suggestions. We are also indebted to Karlygash Kuralbayeva for help in collecting some of the data used in the paper and to Dagmar Dichtl for language advice.
Generalist genes and learning disabilities: a multivariate genetic analysis of low performance in reading, mathematics, language and general cognitive ability in a sample of 8000 12-year-old twins.

BACKGROUND
Our previous investigation found that the same genes influence poor reading and mathematics performance in 10-year-olds. Here we assess whether this finding extends to language and general cognitive disabilities, as well as replicating the earlier finding for reading and mathematics in an older and larger sample.


METHODS
Using a representative sample of 4000 pairs of 12-year-old twins from the UK Twins Early Development Study, we investigated the genetic and environmental overlap between internet-based batteries of language and general cognitive ability tests in addition to tests of reading and mathematics for the bottom 15% of the distribution using DeFries-Fulker extremes analysis. We compared these results to those for the entire distribution.


RESULTS
All four traits were highly correlated at the low extreme (average group phenotypic correlation = .58). and in the entire distribution (average phenotypic correlation = .59). Genetic correlations for the low extreme were consistently high (average = .67), and non-shared environmental correlations were modest (average = .23). These results are similar to those seen across the entire distribution (.68 and .23, respectively).


CONCLUSIONS
The 'Generalist Genes Hypothesis' holds for language and general cognitive disabilities, as well as reading and mathematics disabilities. Genetic correlations were high, indicating a strong degree of overlap in genetic influences on these diverse traits. In contrast, non-shared environmental influences were largely specific to each trait, causing phenotypic differentiation of traits.
GPflow: A Gaussian Process Library using TensorFlow

GPflow is a Gaussian process library that uses TensorFlow for its core computations and Python for its front end. The distinguishing features of GPflow are that it uses variational inference as the primary approximation method, provides concise code through the use of automatic differentiation, has been engineered with a particular emphasis on software testing and is able to exploit GPU hardware. 1. GPflow and TensorFlow are available as open source software under the Apache 2.0 license. c ©2017 Alexander G. de G. Matthews, Mark van der Wilk, Tom Nickson, Keisuke Fujii, Alexis Boukouvalas, Pablo León-Villagrá, Zoubin Ghahramani, and James Hensman. License: CC-BY 4.0, see https://creativecommons.org/licenses/by/4.0/. Attribution requirements are provided at http://jmlr.org/papers/v18/16-537.html.
Comparison of the clinical history of symptomatic isolated muscular calf vein thrombosis versus deep calf vein thrombosis.

BACKGROUND
Half of all lower limb deep vein thromboses (DVT) are distal DVT that are equally distributed between muscular calf vein thromboses (MCVT) and deep calf vein thromboses (DCVT). Despite their high prevalence, MCVT and DCVT have never been compared so far, which prevents possible modulation of distal DVT management according to the kind of distal DVT (MCVT or DCVT).


METHODS
Using data from the French, multicenter, prospective observational OPTimisation de l'Interrogatoire dans l'évaluation du risque throMbo-Embolique Veineux (OPTIMEV) study, we compared the clinical presentation and risk factors of 268 symptomatic isolated DCVT and 457 symptomatic isolated MCVT and the 3-month outcomes of the 222 DCVT and 390 MCVT that were followed-up.


RESULTS
During the entire follow-up, 86.5% of DCVT patients and 76.7% of MCVT patients were treated with anticoagulant drugs (P = .003). MCVT was significantly more associated with localized pain than DCVT (30.4% vs 22.4%, P = .02) and less associated with swelling (47.9% vs 62.7%, P < .001). MCVT and DCVT patients exhibited the same risk factors profile, except that recent surgery was slightly more associated with DCVT (odds ratio, 1.70%; confidence interval, 1.06-2.75), and had equivalent comorbidities as evaluated by the Charlson index. At 3 months, no statistically significant difference was noted between MCVT and DCVT in death (3.8% vs 4.1%), venous thromboembolism recurrence (1.5% vs 1.4%), and major bleeding (0% vs 0.5%).


CONCLUSION
Isolated symptomatic MCVT and DCVT exhibit different clinical symptoms at presentation but affect the same patient population. Under anticoagulant treatment and in the short-term, isolated distal DVT constitutes a homogeneous entity. Therapeutic trials are needed to determine a consensual mode of care of MCVT and DCVT.
Effectiveness of a nurse-based outreach program for identifying and treating psychiatric illness in the elderly.

CONTEXT
Elderly persons with psychiatric disorders are less likely than younger adults to be diagnosed as having a mental disorder and receive needed mental health treatment. Lack of access to care is 1 possible cause of this disparity.


OBJECTIVE
To determine whether a nurse-based mobile outreach program to seriously mentally ill elderly persons is more effective than usual care in diminishing levels of depression, psychiatric symptoms, and undesirable moves (eg, nursing home placement, eviction, board and care placement).


DESIGN
Prospective randomized trial conducted between March 1993 and April 1996 to assess the effectiveness of the Psychogeriatric Assessment and Treatment in City Housing (PATCH) program.


SETTING
Six urban public housing sites for elderly persons in Baltimore, Md.


PARTICIPANTS
A total of 945 (83%) of 1195 residents in the 6 sites underwent screening for psychiatric illness. Among those screened, 342 screened positive and 603 screened negative. All screen-positive subjects aged 60 years and older (n=310) and a 10% random sample of screen-negative subjects aged 60 years and older (n=61) were selected for a structured psychiatric interview. Eleven subjects moved or died; 245 (82%) of those who screened positive and 53 (88%) of those who screened negative were evaluated to determine who had a psychiatric disorder. Data were weighted to estimate the prevalence of psychiatric disorders at the 6 sites.


INTERVENTION
Among the 6 sites, residents in 3 buildings were randomized to receive the PATCH model intervention, which included educating building staff to be case finders, performing assessment in residents' apartments, and providing care when indicated; and residents in the remaining 3 buildings were randomized to receive usual care (comparison group).


MAIN OUTCOME MEASURES
Number of undesirable moves and scores on the Montgomery-Asberg Depression Rating Scale (MADRS), a measure of depressive symptoms, and the Brief Psychiatric Rating Scale (BPRS), a measure of psychiatric symptoms and behavioral disorder, in intervention vs comparison sites.


RESULTS
Based on weighted data, at 26 months of follow-up, psychiatric cases at the intervention sites had significantly lower (F(1)=31.18; P<.001) MADRS scores (9.1 vs 15.2) and significantly lower (F(1)=17.35; P<.001) BPRS scores (27.4 vs 33.9) than those at the nontreatment comparison sites. There was no significant difference between the groups in undesirable moves (relative risk, 0.97; 95% confidence interval, 0. 44-2.17).


CONCLUSIONS
These results indicate that the PATCH intervention was more effective than usual care in reducing psychiatric symptoms in persons with psychiatric disorders and those with elevated levels of psychiatric symptoms. JAMA. 2000;283:2802-2809
Adaptive dynamic surface control of nonlinear systems with unknown dead zone in pure feedback form

In this paper, adaptive dynamic surface control (DSC) is developed for a class of pure-feedback nonlinear systems with unknown dead zone and perturbed uncertainties using neural networks. The explosion of complexity in traditional backstepping design is avoided by utilizing dynamic surface control and introducing integral-type Lyapunov function. It is proved that the proposed design method is able to guarantee semi-global uniform ultimate boundedness of all signals in the closed-loop system, with arbitrary small tracking error by appropriately choosing design constants. Simulation results demonstrate the effectiveness of the proposed approach. c © 2008 Elsevier Ltd. All rights reserved.
Dodonaea viscosa (L.) Leaves extract as acid Corrosion inhibitor for mild Steel - A Green approach

There is a growing trend to utilize plant extracts and pharmaceutical compounds as corrosion inhibitors. The inhibitive performance of extract of Dodonaea viscosa Leaves (DVLE) on the corrosion of mild steel in 1M HCl and 0.5M H2SO4 were studied using mass loss and electro chemical measurements. Characterization of DVLE was carried out using GCMS and FT-IR spectroscopy. Results confirmed that the extract of Dodonaea viscosa Leaves (DVLE) acts as an effective corrosion inhibitor in the acid environment. The inhibition efficiency increased with increase in concentration of the inhibitor and decreased with temperature. Thermodynamic parameters revealed that the inhibition is through spontaneous adsorption of inhibitors onto the metal surface. Potentiodynamic polarization and electrochemical impedance studies confirmed that the system follows mixed mode of inhibition. Adsorbed film of inhibitor at metal /solution interface has been confirmed using reflectance Fourier transform infrared spectroscopy. Surface analysis by UV, FTIR and SEM confirmed the formation of protective layer on the mild steel (MS) surface. Efforts were also taken to propose a suitable mechanism for the inhibition.
What happens to contraceptive use after injectables are introduced? An analysis of 13 countries.

CONTEXT
Although the introduction of a new method is generally hailed as a boon to contraceptive prevalence, uptake of new methods can reduce the use of existing methods. It is important to examine changing patterns of contraceptive use and method mix after the introduction of new methods.


METHODS
Demographic and Health Survey data from 13 countries were used to analyze changes in method use and method mix after the introduction of the injectable in the early 1990s. Subgroup analyses were conducted among married women who reported wanting more children, but not in the next two years (spacers), and those who reported wanting no more children (limiters).


RESULTS
Modern method use and injectable use rose for each study country. Increases in modern method use exceeded those in injectable use in all but three countries. Injectable use rose among spacers, as well as among limiters of all ages, particularly those younger than 35. In general, the increase in injectable use was partially offset by declines in use of other methods, especially long-acting or permanent methods.


CONCLUSION
Family planning programs could face higher costs and women could experience more unintended pregnancies if limiters use injectables for long periods, rather than changing to longer acting and permanent methods, which provide greater contraceptive efficacy at lower cost, when they are sure they want no more children.
Still happy after all these years: research frontiers on subjective well-being in later life.

UNLABELLED
OBJECTIVES. Understanding the factors that promote quality of life in old age has been a staple of social gerontology since its inception and remains a significant theme in aging research. The purpose of this article was to review the state of the science with regard to subjective well-being (SWB) in later life and to identify promising directions for future research.


METHODS
This article is based on a review of literature on SWB in aging, sociological, and psychological journals. Although the materials reviewed date back to the early 1960s, the emphasis is on publications in the past decade.


RESULTS
Research to date paints an effective portrait of the epidemiology of SWB in late life and the factors associated with it. Although the research base is large, causal inferences about the determinants of SWB remain problematic. Two recent contributions to the research base are highlighted as emerging issues: studies of secular trends in SWB and cross-national studies. Discussion. The review ends with discussion of priority issues for future research.