jimnoneill/paper-to-field-training huggingface dataset:
Corrosion protection of aluminum alloy by epoxy coatings containing polyaniline modified graphene additives

Field: Materials Science (Physical Sciences)

Abstract In the study, polyaniline/reduced‐graphene oxide (PANI‐RGO) composites, fabricated by loading 2, 5, and 8wt% graphene oxide, was prepared by in‐situ emulsion polymerization and reduction. They are characterized by Fourier transform infrared spectroscopy, X‐ray diffraction, and scanning electron microscopy. Epoxy coatings adding PANI and PANI‐RGO composites were coated on the surface of AA5083 Al alloy. The anticorrosion performance of the coatings is measured by electrochemical impedance spectroscopy and potentiodynamic polarization curve in 3.5wt% NaCl solution. The results demonstrate that the epoxy/PANI‐RGO coating exhibits a better protection against AA5083 alloy corrosion compared with the epoxy/PANI coating. Enhancement of the passivation performance of PANI was obtained by the addition of RGO into epoxy/PANI coating system.
Multiple geophysical joint inversion images of geothermal fields

Field: Earth and Planetary Sciences (Physical Sciences)

An increasing interest on the production of energy from renewable sources is promoting multidisciplinary studies for the evaluation of the geothermal potential and enhanced production. Whereas it is now common to collect multiple geophysical data in geothermal targets, there is little reported experience on the application of modern technologies of geophysical joint inversion to elucidate the structural and compositional complexity of geothermal areas. In this work, I share the experiences obtained with several geophysical joint inversion strategies in geothermal targets. Through a comparative analysis, I demonstrate the advantages of these joint inversion strategies to depict the complex compositional and structural interplay of the geological environment in current and prospective geothermal fields.
The Annual Employment Mix of Workers and Firms and the Part-time Earnings Gap in New Zealand

Field: Economics, Econometrics and Finance (Social Sciences)

In this paper we document patterns of annual employment across jobs, workers and firms, and examine the relationship between these patterns and job-level earnings rates using data from Statistics New Zealand’s Linked Employer-Employee Database (LEED). First, we characterise workers’ annual employment along the intensive (or full-time, within month) and extensive (or full-year, across months) dimensions, and firms’ mix of full-time and full-year jobs. We use this characterisation to describe the nature of employment matching between workers and firms, and find that part-time workers are overrepresented in firms with a lot of part-time work. Second, we examine the relationship between the intensive and extensive margin characteristics of jobs and their earnings. Although there is a strong raw earnings penalty associated with part-time jobs, we estimate only a modest direct part-time impact on earnings after controlling for other worker and firm factors; and we estimate a part-year earnings premium.
PORPHYRY COPPER (-MOLYBDENUM-GOLD) DEPOSIT PROSPECTIVITY IN ZHASHUI-SHANYANG MINERALIZATION BELT,QINLING MT., NW CHINA

Field: Earth and Planetary Sciences (Physical Sciences)

The paper focuses on the geological setting, forrning environment, petrochemistry, isotope, etc. of the Yangshanian intermediate-acid porphyry intrusion in ZhashuiShanyang mineralization belt. The alteration type and zone of the intrusion and its host rocks have been studied, and the characteristics of the known copper (-molybdenum-gold) mineralization occurrence have been investigated. Hence the metallogenetic factors and ore prospectivity have been evaluated by comprehensive study of the metallogenic geology and correlation with the rnega-porphyry copper(-molybdenum) deposits in the world.
Hydroxypropyl-β-cyclodextrin inhibits the development of triple negative breast cancer by enhancing antitumor immunity

Field: Pharmacology, Toxicology and Pharmaceutics (Life Sciences)

Abstract Triple negative breast cancer (TNBC) is a most aggressive type of breast cancer without effective therapies. Cyclodextrin, a cyclic oligosaccharide is used as drug delivery carrier with cholesterol lowering property. However, whether cyclodextrin can inhibit the proliferation and migration of TNBC as well as the underlying mechanisms are unclear. In the present study, we demonstrated that 2-hydroxypropyl-β-cyclodextrin (HP-β-CD) inhibited the growth and metastasis of TNBC both in vitro and in vivo . Meanwhile, the antitumor effects of HP-β-CD were also observed in a mouse melanoma model. Mechanistically, we initially determined that cholesterol supplementation can attenuate HP-b-CD-inhibited TNBC growth and metastasis both in vitro and in vivo . In vivo , HP-β-CD promoted the infiltration of T cells into the tumor microenvironment (TME) and improved exhaustion of CD8 + T cells via reducing endoplasmic reticulum (ER) stress and immune checkpoint molecules. Additionally, HP-β-CD inhibited the recruitment of tumor associated macrophages to the TME via reducing CCL2-p38MAPK-NF-kB axis. HP-β-CD also inhibited the epithelial mesenchymal transition (EMT) of TNBC cells mediated by transforming growth factor-b (TGF-b) signaling pathway. In summary, the data in the current study suggest that HP-β-CD effectively inhibited proliferation and metastasis of TNBC and melanoma, highlighting HP-β-CD may be a potential general antitumor clinical drug.
Robot Contact Language for Manipulation Planning

Field: Computer Science (Physical Sciences)

The task of robotic manipulation planning combines high-level decision-making with low-level controllers that interact with the environment. Generating interfaces between these two paradigms is an active field of research in robotics. In this paper, we propose a contact-based language for robotic manipulation and planning, based on the contact between a collection of objects, robots and surfaces. This planner considers making and breaking contact as the bridge between high-level planning and low-level controllers. Following this paradigm, a robot contact language is developed. Given the involved components, a contact graph is constructed with respect to a set of predefined rules and the available geometrical information. Once the graph is generated, object manipulation planning is formulated as a graph search problem. Paths on this contact graph divide a complex manipulation task into sub-tasks which is followed by low-level path planning and controller assignment for each sub-task. By executing these controllers sequentially and in a hybrid fashion, one can achieve the overall manipulation.
Interference Condition of Wheels in Plunge Grinding (2nd Report)

Field: Engineering (Physical Sciences)

The successive spacing and its distribution of cutting edges related to surface generation are experimentally made clear by analyzing interference grooves on ground surface and correlating the grooves with the position and the shape of cutting edges on the wheel surface. The finished surface is generated with a period of the grinding wheel revolution by a few cutting edges on the wheel surface. The Successive cutting edge spacing distributes widely, following the Gamma Distribution. The successive cutting edge spacing has a close relation to the real interference depth of wheel and is longer than the one determined by analyzing only the wheel surface.
Physiological, psychological and autonomic responses to pre-operative instructions for patients undergoing cardiac surgery.

Field: Medicine (Health Sciences)

Several studies have reported that the experience may induce emotional reactions before and after surgery. Various Studies have demonstrated that effective pre-operative information reduces stress and anxiety levels. However, little is known about the effect of pre-operative instruction on autonomic responses as measured by heart rate variability (HRV) before cardiac surgery. Ninety-one patients were randomly assigned to video-tape viewing and teaching booklet group. Electrocardiogram was monitored before and after pre-operative instruction. HRV was analyzed with spectral analysis of frequency domains of heart rate and categorized into low and high frequency (LF and HF). After pre-operative instruction, subjects completed a score of perceived stress and helpfulness. In this study, we found that pre-operative instruction with video-tape was similarly effective as teaching booklets on patients' perceived stress, perceived helpfulness and recovery outcomes. The decrease in HF% and increase in LF/HF ratio of HRV indicate a change in sympathovagal balance toward a lower parasympathetic activity after pre-operative instruction in subjects of both groups. However, the perceived helpfulness of pre-operative instruction may often be associated with a relatively less sympathetic activity. Further studies are needed to determine the optimal timing to enhance the positive effects on the sympathovagal balance after pre-operative instruction.
Parenting Style and Its Impact on the Development of Youth Self-Esteem

Field: Psychology (Social Sciences)

Parenting styles play a pivotal role in shaping adolescents' self-esteem, a critical determinant of psychological and social development. This study examines the relationship between parenting styles—authoritative, authoritarian, permissive, and neglectful—and the physical self-esteem of young people. Drawing on Baumrind's theoretical framework, the research highlights how parental warmth, responsiveness, and control influence self-worth. Using a quantitative design, data were collected from 120 youths in Sargodha through structured questionnaires measuring perceived parenting styles and physical self-esteem. Descriptive statistics, Pearson correlations, and t-test were employed, with significance set at p < 0.05. The findings reveal that authoritative parenting is the most prevalent style (51.7%) and demonstrates a significant positive relationship with youth self-esteem (r = 0.435, p < 0.01). Authoritarian and neglectful styles were negatively associated with self-esteem, while permissive parenting showed a weak positive but non-significant link. These results align with previous studies emphasizing the benefits of warmth and structured guidance in fostering confidence and resilience. Furthermore, the data underscore cultural and socioeconomic nuances, as authoritarian parenting in some contexts may reflect structural stress rather than deliberate harshness. The study highlights the importance of parental education and culturally sensitive interventions. Policy recommendations include implementing parenting education programs, integrating school-based parental engagement initiatives, and providing targeted support for low-income families. Overall, the research affirms that authoritative parenting fosters healthier youth development, with implications for educational, familial, and social policy reforms aimed at enhancing adolescent mental health and well-being.
Performance analysis of OSTBC-MIMO systems employing M-QAM transmission over independent but not necessarily identical generalized-K fading channels

Field: Computer Science (Physical Sciences)

The performance of Orthogonal Space-Time Block Codes (OSTBC) for Multiple-Input Multiple-Output (MIMO) systems employing M-QAM transmission is investigated over independent but not necessarily identically distributed (i.n.i.d.) generalized-K fading channels with arbitrary real-valued k and m. Before this, the i.n.i.d. generalized-K fading channel has never been considered for the OSTBC-MIMO systems. Especially, the effects of the shaping parameter k on the OSTBC-MIMO system performance are unknown. Specifically, we investigate mainly the significance of the shaping parameter k on the OSTBC-MIMO system performance in terms of the average Symbol Error Probability (SEP) and Shannon capacity. By establishing the system model, the Probability Density Function (PDF) of the equivalent Signal to Noise Ratio (SNR) is derived. Then, the closed-form expressions of such performance metrics are obtained successively. Finally, Numerical results prove that the derived expressions are validated via a set of Monte-Carlo simulations and the implications of the shaping parameter k on the overall performance are highlighted.
Epistaxis in Sickle-cell Anaemia

Field: Medicine (Health Sciences)

years later, none of these could claim a com- plete absence of homosexual desires.A critical review of behaviour therapy tech- niques in the treatment of sexual deviations' concluded that techniques using faradic aver- sion and operant conditioning achieved better results than those using chemical aversion and classical conditioning.The results to date of our own series of 32 homosexual patients treated by faradic aversion and operant conditioning indicate that one-half are now actively heterosexual, and a further sixth have ceased homosexual practices and are utilizing heterosexual fantasy.The range of follow-up is 3 months to 2j years, and we have published detailed reports of the method used,4' together with physiological and psychological data recorded during treatment.Finally, while reports have appeared con- cerning the physical dangers of chemical aversion, there have been no such adverse reports concerning faradic aversion.-Weare, etc.,
Principals’ positioning of teacher specialists: between sensitivity, coaching, and dedication

Field: Social Sciences (Social Sciences)

This study investigates how principals position specialized teachers (i.e., teachers with expertise in a specific area who are assigned to build the capacity of teachers through professional development) and how these positions might enable and constrain the teachers' actions. Today, a general tendency to foster professionalization by establishing new specialized teacher roles is growing. Research reveals that principals' communication is crucial for these teachers' work, yet how they talk about the teachers is rarely the main object of investigation. By analyzing observational data and interviews with three principals, this study explores how Norwegian specialized teachers are positioned, locally referred to as teacher specialists, and hence how professionalization through specialization is put into practice. Drawing on positioning theory, three inductively derived positions are identified, revealing that the principals tend to equalize the specialists and the staff and emphasize the specialists' attributes rather than their subject knowledge. The results suggest that, although principals' positioning can impede potential conflicts within the collegium, de-emphasizing the specialists' expertise arguably makes it difficult to consider such roles as professionalization initiatives. Moreover, reducing specialized teachers to a matter of dedication and careful teacher approaches can constrain specialist-led development work and facilitation of inquiry-based dialogs within the collegium.
CREDIT-PRODUCT INTERLINKAGE, CAPTIVE MARKETS AND TRADE LIBERALIZATION IN AGRICULTURE: A THEORETICAL ANALYSIS IN AGRICULTURE: A THEORETICAL ANALYSIS

Field: Economics, Econometrics and Finance (Social Sciences)

This paper builds a model of fragmented duopsony in backward agriculture following Basu and Bell (1991) in which the purchasers (traders) have captive markets each but compete in a contested market. We focus on the formation of captive markets through trader-farmer interlinkage in the form of interlinked credit-product contracts (ICPCs). ICPC (or the formation of captive markets) is not an entry-preventive strategy in the model. Its motive is to push the farmers to their reservation income level. However, the captive and the contested markets are linked by the requirement that the reservation income of a captive farmer has to equal the income of a farmer in the contested market. In general, in our model strategic considerations determine the extent of use of ICPCs rather than explaining their existence. In this set-up we examine the effects of trade liberalization in agriculture on the village economy. We show that a reduction in the credit subsidy will raise the size of the captive market, leads to deterioration in the welfare of the farmers and may lower the agricultural productivity of the economy. On the contrary, an increase in the international price of the crop unambiguously improves the welfare of the farmers but the effect on the agricultural productivity is ambiguous. The paper argues that unless the developed countries liberalize trade in their agricultural sector, it would be premature for the developing countries to go in for agricultural trade liberalization and remove all farm subsidies, as this policy may in fact be counterproductive.
The Effects of Adding Urea or Urea + Molasses in Some Sorghum Varieties Harvested at Dough Stage on Silage Quality and Digestible Dry Matter Yield

Field: Agricultural and Biological Sciences (Life Sciences)

The aim of this study was to evaluate the effects of the addition of 0.5% urea or 0.5% urea plus 4% molasses into some sorghum varieties (Gözde, P-988, Grazer and Grass-II) harvested at the dough stage on silage quality, in vitro dry matter (DM) digestibility and digestible DM yields. Triplicate silage samples from each variety and treatment group, a total of 36 silage samples, were prepared in 1 l mino-silos and incubated for 90 days. Silage DM and crude protein (CP) levels ranged from 29.56 to 33.46%, and from 7.16 to 12.63%, respectively. Addition of urea or urea + molasses increased CP, and urea + molasses increased DM but decreased the NDF content of all silages (P &amp;lt; 0,05). Silage pHs were between 4.08 and 4.71, and the addition of urea and urea + molasses increased silage pH (P &amp;lt; 0,05). Lactic, acetic and butyric acid concentrations of silages, on DM bases, ranged from 3.50 to 8.01%; from 0.58 to 1.44% and from 0.01 to 0.14%, respectively. The addition of urea and urea + molasses increased the lactic acid and decreased the propionic acid concentration of silages (P &amp;lt; 0,05), although butyric acid concentrations were not affected. Urea supplementation did not affect acetic acid concentrations, and urea + molasses increased the acetic acid concentration of silages. In vitro DM digestibilities of Gözde, P-988, Grazer and Grass-II varieties were 52.85, 54.20, 54.96 and 54.39%, respectively. The addition of urea + molasses to Gözde increased in vitro DM digestibilities, but urea and urea + molasses addition decreased in vitro DM digestibilities in other varieties (P &amp;lt; 0,05). The P-988 variety had the highest digestible DM yield (804.38 kg/decare)(P &amp;lt; 0,05). In conclusion, the P-988 sorghum variety seemed to be the best suited Van ecological conditions based on silage fermentation quality and digestible DM yield.
The ZZ/WZ signal as a background to ZH/WH (

Field: Physics and Astronomy (Physical Sciences)

\nThe WZ/ZZ (VZ) production channels with Z decaying to bottom quarks are one of the less reducible backgrounds for the standard model (SM) Higgs boson search in the same event topology (VH). The study of the VZ signal described here should be considered as a validation of the analysis strategy developed for the VH search in the boosted regime. The 8 TeV data sample including 19.0 fb−1 from the 2012 running period has been analyzed in the Z(μμ, ee, νν)Z and W(μν, eν)Z channels and the presence of the signal has been established with a significance of 7.5σ.\n
Experimental study on characterization of lime-based mineral carbonation reaction and CO2 sequestration

Field: Environmental Science (Physical Sciences)

Abstract This paper reports for the first time the use and application of a novel technique in the characterization of mineral carbonation reaction and CO 2 sequestration in soil stabilization using flow meters. Soils based on SiO 2 with two different sizes were tested. Lime (Ca(OH) 2 ) was used as the reactant. Instant CO 2 flow rate (L/min), total CO 2 volume (L), temperature (°C), and absolute pressure (kPa) were monitored and recorded for 1 hour by flow meters connected to the mold inlet and outlet. It was determined that the mineral carbonation reaction started in the first seconds and ended before the 5th minute. The mineral carbonation is a short-term and potential reaction, and it is not a time-dependent reaction. It is separated from other carbonation reactions with these characteristics. The highest CO 2 captured value was obtained in the soil mixed with 5% lime, where fines were not used. The second highest CO2 captured value was obtained in soil mixed with 1% lime, where fines were not used. CO 2 captured with 1% lime is more than CO 2 captured with 5% lime in the soil containing fines. Accordingly, 1-5% lime can be used in soil carbonation studies. According to the soil properties, the highest CO 2 captured and the CO 2 efficiency was achieved with the use of 6-7% water by weight.
Highly efficient in‐situ sulfur doped graphitic carbon nitride nanoplates as an artificial photosynthetic system for NADH regeneration

Field: Chemistry (Physical Sciences)

Abstract Photocatalysis reduces the challenges associated with power activities by the conversion of solar energy into chemical energy. Herein, sulfur‐doped graphitic carbon nitride nanoplate (S‐g‐CN‐NP) via polycondensation and vapor oxidative treatment methods as a promising solar light‐reactive photocatalyst has been designed. The photo‐mediated reduction of NAD + is used to facilitate the extremely efficient solar light‐driven photocatalytic selective production of nicotinamide adenine dinucleotide (NADH). The S‐g‐CN‐NP photocatalyst shown excellent optical and photoelectrical properties, supporting an NADH yield of (97±0.010 %), which was 1.5 folds higher than that of S‐g‐CN powder (65±0.012 %). Through the transformation of S‐g‐CN powder to nanoplates, the improvement of photocatalytic in S‐g‐CN‐NP was primarily ascribed to the growth of active sites of the nanoplates. The current study focuses on the creation and use of an S‐g‐CN‐NP photocatalyst for direct selective NADH regeneration under solar light.
PRIMENE 81-R...low-viscosity, low-cost, high-molecular-weight amine

Field: Chemical Engineering (Physical Sciences)

RETURN TO ISSUEPREVAdvertisementNEXTPRIMENE 81-R...low-viscosity, low-cost, high-molecular-weight amineCite this: Chem. Eng. News 1959, 37, 34, 13Publication Date (Print):August 24, 1959Publication History Published online6 November 2010Published inissue 24 August 1959https://doi.org/10.1021/cen-v037n034.p013Copyright © 1959 AMERICAN CHEMICAL SOCIETYArticle Views121Altmetric-Citations-LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InReddit PDF (87 KB) SUBJECTS:Amines Get e-Alerts