jimnoneill/paper-to-field-training huggingface dataset:
Integration of RSM and Machine Learning for Accurate Prediction of Surface Roughness in Laser Processing

Field: Engineering (Physical Sciences)

This study investigates the modeling of surface roughness (Ra) in the laser cutting of EN 10130 steel process by integrating classical statistical and machine learning methods. First, a quadratic model was developed using response surface methodology (RSM) based on a Box–Behnken experimental design with 17 runs, using cutting speed, laser power, and auxiliary gas pressure as input parameters. Although the RSM model achieved an R2 value of 0.8227, there were still some nonlinear deviations between the predicted and experimental values. To improve the prediction accuracy, a regression tree algorithm was applied to model the residuals of the RSM output. The resulting hybrid model, which combines RSM predictions with machine learning-based corrections, yielded a higher R2 of 0.8889 and a lower RMSE compared to the original RSM model. A leave-one-out cross-validation (LOOCV) was performed to evaluate the generalization, which resulted in an RMSE of 0.3241 and an R2 of 0.6039. These findings confirm the effectiveness of the hybrid approach in capturing complex dependencies and improving prediction accuracy, highlighting its potential for advanced process modeling in laser machining.
Distribution of magnesium in groundwater of Serbia

Field: Earth and Planetary Sciences (Physical Sciences)

Magnesium is chemical element commonly found in the environment and the main constituent of many types of minerals and rocks. This element is also essential to man. Owing to its abundance in nature, magnesium is present in all water resources and generally occur as the dominant cation, with calcium, in those that feature low TDS levels, whose origin is associated with large formations of sedimentary rocks (limestones, dolomites), and to a lesser extent with the degradation of silicate minerals that contain Mg. Magnesium concentrations in groundwater of Serbia vary over a wide range and their distribution is not uniform, but certain laws of nature do apply. The variation in the concentrations of this ion depends on the considered hydrogeological province, while within a single province it is a consequence of Serbia?s highly complex geology. The best examples are the Carpatho-Balkanides, with predominant karstified rock formations, and the Vardar Zone where ophiolites prevail but the makeup is much more complex than that of the Carpatho-Balkanides.
ChemInform Abstract: Regioselective Synthesis of (E)‐3‐[2‐(Arylmethylene)‐1‐(arylsulfonyl)hydrazino]‐2‐propenoates via the Reaction of Arylsulfonyl Hydrazones and Alkyl Propiolates in the Presence of Triphenylphosphine.

Field: Chemistry (Physical Sciences)

Abstract The highly functionalized title compounds are formed as exclusive (E)‐isomers.
Feeding Thyroprotein to Cocks During Summer

Field: Agricultural and Biological Sciences (Life Sciences)

INTRODUCTION LOW fertility in eggs is a characteristic phenomenon commonly observed in summer hatches of fowl eggs in subtropic countries like Egypt (Hafez and Kamar, 1955). This may be due to a lot of factors, of which the most important one may be the male side when represented by semen production. This work was done in a trial to improve the characteristics of semen produced by the cocks by administering thyroprotein as a replacement for the decreased thyroidal activity that was observed to occur during hot weather (Winchester, 1940; and Reineke and Turner, 1945). This hot weather normally occurs during the summer in Egypt. Hyperthyroidism induced by feeding thyroprotein (0.02%) for a 16 week period to two year old Barred Rock males, did not affect semen volume or sperm concentration. However, there was some deterioration in methylene blue test, motility of spermatozoa and survival time at 4°C. and hence lowered …
F-18 FDG PET/CT as a One-Stop Shop Imaging Modality for Assessment of Neurologic and Pulmonary Manifestations of COVID-19.

Field: Medicine (Health Sciences)

Neurologic manifestations are now being increasingly encountered in patients who are admitted for respiratory symptoms of COVID-19. A 67-year-old male with a recent history of Wernicke's aphasia was referred to the nuclear medicine department for risk stratification of malignancy in pulmonary nodule by 18F-FDG PET-CT scan. PET-CT revealed decreased metabolic activity in the left temporoparietal lobe of the brain consistent with recent CVA and excluded malignancy in the pulmonary nodule with low-grade metabolic activity. Incidentally noted, new bilateral pulmonary hypermetabolic ground glass opacities rising suspicious for covid-19 infection which was confirmed by PCR of nasopharyngeal mucosa sample. These findings highlight the value of 18FFDG PET-CT in the assessment of COVID-19 infection especially in non-pulmonary presentations like early neurologic manifestation.
Single-shot supercontinuum spectral interferometry with laser-induced-ionization in air

Field: Physics and Astronomy (Physical Sciences)

Summary from only given. To our knowledge, this is the first demonstration of a single shot supercontinuum spectral interferometry (SSSI) diagnostic using the supercontinuum generated by femtosecond breakdown in air, which is capable of providing mJ-level probe energy. Also the dependence of the temporal resolution of the chirped spectral interferometry on the probe chirp amount is experimentally and theoretically examined. The experimental setup and a sample spectral interferogram with cross-phase modulation due to the optical Kerr response in a fused silica glass.
Comparative study on effect of shenfu injection and shengmai injection on Ca2+-ATPase of myocardial cell in Mice

Field: Pharmacology, Toxicology and Pharmaceutics (Life Sciences)

[Objective] To explore the effect of Shenfu injection and Shengmai injection on Ca2+-ATPase of myocardial cell in mice and provide the basis for the clinical application. [Methods] Using trypsin digestion the myocardial cells were cultured in vitro. After purifying the cells with adhering to the wall with different velocity Shenfu injection and Shengmai injection with three concentrations gradient were added directly to the myocardial cells in logarithmic developing period. Two hours later its effects on the activity of Ca2+-ATPase in myocardial cells was detected. [Results] Shenfu injection of the low, middle and high concentration could increase the Ca2+-ATPase activity of myocardial cells, and the effect of middle concentration was the most obvious. (P0.05) Lower effect of low and middle concen-tration of Shengmai Injection was found. The high concentrations of Shenfu Injection, however, developed a increasing trend of the Ca2+- ATPase activity. [Conclusion] It is indicated that the effect of Shenfu injection on the heart may be related to the increasing of Ca2+-AT-Pase activity in myocardial cells; Shengmai injection has some effect on Ca2+-ATP activity in myocardial cells to a certain extent through other mechanisms on the myocardial cells.
Meat insights: Uruguayan consumers' mental associations and motives underlying consumption changes

Field: Social Sciences (Social Sciences)

A telephone survey (n = 601) was conducted in Uruguay to explore participants' mental associations with meat and the underlying reasons changes in the quantity and type of meat consumed. Participants mentioned mostly positive associations with meat's culinary and cultural aspects and its nutritional value as source of high-quality protein. Other associations were related to meat production, specific types of meat and cuts, meat consumption and pleasure, while price was perceived negatively. Animal welfare concerns emerged as a relevant association, but minor references were made to the effects of meat production on the environment. Changes in the amount and type of meat consumed (higher pork, chicken and cheaper cuts and beef) in the last year were mainly due to price followed by health reasons. Results emphasize the strong meat culture among Uruguayans and reveal that changes in the amount and type of meat consumed last year relate to external (price) or egoistic (health) rather than altruistic motives (ethical or environmental concerns).
The Deformation Analysis and Optimization of the Injection Molded Parts Based on the Moldflow and Minitab Software

Field: Engineering (Physical Sciences)

The deformation seriously affects the quality of the products, which is one of the common defects of plastic parts in the injection molding. Factorial design and CAE technology was used to study the product's warping rate influence in this paper. The minimum warping rate was obtained through the Minitab software and the optimized process parameters are verified with the Moldflow software. Experimental results show that the optimization design is effective and the warpage of the product is reduced.
An empirical analysis of futures pricing in the Nordic electricity market

Field: Economics, Econometrics and Finance (Social Sciences)

The aim of this paper is to study the pricing of futures contracts relative to expected future \nspot prices in the Nordic electricity market. Data set of 1–6 weeks ahead weekly and 1–6 \nmonths ahead monthly futures is used to identify whether futures premium is present in the \nNordic market. The findings reveal that short term futures contracts are unbiased predictors \nof the future spot prices. However, at longer maturities (5–6 weeks for weekly contracts and \n2–6 months for monthly ones) significant time-varying futures premium exists. This \npremium is positive on average and doesn’t vary significantly by seasons. Furthermore, the \nmagnitude of the premium is found to be substantially higher than in other commodity \nmarkets. Finally, a link between the futures premium and measures of risk (reservoir level, \nvariance and skewness of the spot prices) is tested to find out whether the premium exists as \na compensation for risk or mispricing in the market. The futures premium is found to be \npositively related to the reservoir level, while relationship with variance and skewness of the \nspot prices is mostly insignificant. As the magnitude of the premium is too high to be \nexplained by this sole risk factor, it is concluded that mispricing exists in futures contracts \nwith maturities longer than 4 weeks in the Nordic electricity market.
Some observations on the kinetics of haemoglobin in solution and in the red blood corpuscle

Field: Biochemistry, Genetics and Molecular Biology (Life Sciences)

Research Article| June 01 1950 Some observations on the kinetics of haemoglobin in solution and in the red blood corpuscle J. W. Legge; J. W. Legge 1Department of Colloid Science, and Molteno Institute, University of Cambridge Search for other works by this author on: This Site PubMed Google Scholar F. J. W. Roughton F. J. W. Roughton 1Department of Colloid Science, and Molteno Institute, University of Cambridge Search for other works by this author on: This Site PubMed Google Scholar Biochem J (1950) 47 (1): 43–52. https://doi.org/10.1042/bj0470043 Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Icon Share MailTo Twitter LinkedIn Cite Icon Cite Get Permissions Citation J. W. Legge, F. J. W. Roughton; Some observations on the kinetics of haemoglobin in solution and in the red blood corpuscle. Biochem J 1 June 1950; 47 (1): 43–52. doi: https://doi.org/10.1042/bj0470043 Download citation file: Ris (Zotero) Reference Manager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentAll JournalsBiochemical Journal Search Advanced Search This content is only available as a PDF. © 1950 CAMBRIDGE UNIVERSITY PRESS1950 Article PDF first page preview Close Modal You do not currently have access to this content.
Ureteral triplication: A case report

Field: Medicine (Health Sciences)

Introduction Of all children born with congenital anomalies, 30-40% have urogenital abnormalities. Most of them are asymptomatic, but if any symptoms occur, they are usually symptoms of urinary infections. Case report A four-year old girl was admitted because of recurrent urinary infections and in order to perform a thorough clinical examination. Clinical examination showed an asymmetrical glutens and presence of a fibroma in the same region. Detailed radiologic examinations (ultrasonography, plain X-ray, excretory urography, voiding urethrocystography) revealed a triplicate ureter on the right side with a vesicoureteral reflux of the fifth grade on the same side. Intraoperatively, type III ureteric triplication according to Smith's classification was established. Ureteral remodeling and reimplantation was done. The postoperative course was good, and follow-up voiding urethrocystography showed absence of reflux. Discussion Ureteral triplication is a consequence of either development of three buds on the mesonephric duct, or development of two buds, one of which further divided into two parts. Most common anomalies associated with ureteral triplication are: ureteral duplication on the other side (37%), ectopy of the ureteric orifice (28%) and kidney dysplasia (8%). Vesicoureteral reflux is very common on affected or on both sides. Symptomatology is the same as in ureteral duplication - dominated by signs of urinary infections. Conclusion Diagnosis of ureteral duplication requires detailed imaging. Treatment of symptomatic abnormalities should be individual, regardless of the applied treatment (conservative or operative).
The Song of Moses and Divine Begetting in Matt 1,20

Field: Arts and Humanities (Social Sciences)

It is argued in this article that the imagery of Israel's divine begetting from the Song of Moses (Deut 32,18) is in view in the account of Jesus' divine begetting in Matt 1,20. To establish the plausibility of this claim, the characteristics and widespread knowledge of the Song of Moses are surveyed first, followed by the rationale for positing its presence in Matthew. The allusion to Deut 32,18 in Matt 1,20 is one component of a larger Matthean pattern by which the Evangelist portrays Jesus as the obedient Son of God in contrast to Israel as God's disobedient son. This reference also highlights the imagery of new creation that Matthew associates with the birth of Jesus.
Direct Writing of Tunable Living Inks for Bioprocess\nIntensification

Field: Chemical Engineering (Physical Sciences)

Critical\nto the success of three-dimensional (3D) printing of living\nmaterials with high performance is the development of new ink materials\nand 3D geometries that favor long-term cell functionality. Here we\nreport the use of freeze-dried live cells as the solid filler to enable\na new living material system for direct ink writing of catalytically\nactive microorganisms with tunable densities and various self-supporting\nporous 3D geometries. Baker’s yeast was used as an exemplary\nlive whole-cell biocatalyst, and the printed structures displayed\nhigh resolution, large scale, high catalytic activity and long-term\nviability. An unprecedented high cell loading was achieved, and cell\ninks showed unique thixotropic behavior. In the presence of glucose,\nprinted bioscaffolds exhibited increased ethanol production compared\nto bulk counterparts due largely to improved mass transfer through\nengineered porous structures. The new living materials developed in\nthis work could serve as a versatile platform for process intensification\nof an array of bioconversion processes utilizing diverse microbial\nbiocatalysts for production of high-value products or bioremediation\napplications.
Secure Text Steganography For Microsoft Word Document

Field: Computer Science (Physical Sciences)

Seamless modification of an entity for the purpose of hiding a message of significance inside its substance in a manner that the embedding remains oblivious to an observer is known as steganography. Together with today's pervasive registering frameworks, steganography has developed into a science that offers an assortment of strategies for stealth correspondence over the globe that must, however, need a critical appraisal from security breach standpoint. Microsoft Word is amongst the preferably used word processing software, which comes as a part of the Microsoft Office suite. With a user-friendly graphical interface, the richness of text editing, and formatting topographies, the documents produced through this software are also most suitable for stealth communication. This research aimed not only to epitomize the fundamental concepts of steganography but also to expound on the utilization of Microsoft Word document as a carrier for furtive message exchange. The exertion is to examine contemporary message hiding schemes from security aspect so as to present the explorative discoveries and suggest enhancements which may serve a wellspring of information to encourage such futuristic research endeavors.
Determinants of bone mineral density in post-menopause

Field: Medicine (Health Sciences)

Post-menopause is the period of greatest bone loss and it is necessary to introduce preventative measures to mitigate its progression. Aim: compare the score of bone mineral density (BMD) and their risk factors and to determine those most influencing. Method: Cross-sectional, descriptive study of 62 postmenopausal women, healthy, average age 56.82 ± 4.02 years, evaluated for risk factors for osteoporosis and physical activity level. Absorption dual energy X-ray absorptiometry (DXA) evaluated lumbar spine and proximal femur. Groups, normal and reduced BMD were analyzed by Student’s t test, chisquare and correlations. Results: Women with lower body mass index (BMI), older age and longer duration of menopause had lower BMD at the femur. Black race and absence of family history correlated with higher BMD. Conclusion: BMI, age, weight, family history of osteoporosis, race, and time since menopause were the main determinants of BMD in postmenopausal women
Image Quality Evaluation Based on Differences in Diagnostic System and Dose Intensity According to Heel Effect

Field: Health Professions (Health Sciences)

Based on the structure of the radiation-generating equipment and the generation principle, the image quality should be maintained under minimum dose for an excellent diagnostic image. To minimize the factors during the differences in diagnostic imaging by the same examinee due to differences in systems, we compared and analyzed the changes in signal intensity of the images acquired in the F/S and the DR system at the cathode, center, and anode. Images were acquired with a tube voltage of 55 kVp and a tube current of 4 mAs (100 mA, 0.004 sec). The obtained images were averaged by measuring the concentration 5 times at 3 centers (center, center to anode 3 cm, center to cathode 3 cm), 3 anode areas (6 cm from center to anode, 9 cm from center to anode, and 12 cm from center to anode), and 3 cathode areas (6 cm from center to cathode, 9 cm from center to cathode, and 12 cm from center to cathode). The concentration of the cathode area was higher than that of the anode in the F/S system. In the DR system, the gradient value of the anode part was higher than that of the cathode. However, the heel effect was large in the F/S system, but not as large as in the DR system. In the DR system, a study is needed to investigate whether the darkest point in the digital image was large or small in the expression of the gradient value.
Peculiarities of the course and management of Ukrainians with post-traumatic stress disorder in the context of the Ukrainian-Russian war

Field: Medicine (Health Sciences)

Abstract

Background The amount of Ukrainians with PTSD has been steadily increasing since December 2022. According to the National Health Service, amount of Ukrainians with posttraumatic-stress disorder (PTSD) in 2021 were 3,167 patients; 2022 — 7,051 patients; 2023 — 12.494 patients; 2024 (January-June) — 6,292, and for the forecasts of WHO, it will continue to increase rapidly. Methods The study involved 450 patients who sought psychological help at the University Clinic of Petro Mohyla Black Sea National University from January to June 2024. All patients were divided into 3 groups: 1st group — patients with PTSD (18–44 years); 2nd group — patients with PTSD (45–59 years), 3rd group — patients with PTSD (60–74 years). The examination of patients included clinical, psychological, questionnaire survey for CAPS-5 scale, SDS — 2000, and static methods. Results In 2nd group, mild and moderate course of PTSD among women were occurred in 2.0 (χ2 = 0.86, p = 0.001) and 2.2 (χ2 = 0.46, p = 0.023) times more often than in male. While severe and extreme course of PTSD in male of 2nd group were recorded in 1.6 (χ2 = 0.16, p = 0.033) and 1.8 (χ2 = 0.99, p = 0.006) times more often than in female patients. Conclusions Examination of patients found that, men have a greater resistance to the risk of developing a disorder in the long term in response to stressors than women, but when the disorder develops, men tend to have more severe manifestations. In women, in the long term after severe mental trauma, the risk of developing PTSD is higher, but the intensity of clinical and psychological manifestations of the disorder is less pronounced. Registration The study was carried out in accordance with the plan of research works at the Petro Mohyla Black Sea National University (Adress: 68 Desantnykiv St, 10, Mykolaiv, Ukraine, 54000) on the topic: “Clinical-pathogenetic justification of the system of primary and secondary prevention of the most socially significant chronic non-infectious diseases of internal organs”, state registration number 0120U101641. Date of registration: 17.03.2021 Duration of research: 03.2021-12.2024
A Matter of Context: A Meta‐Analytic Investigation of the Relative Validity of Contextualized and Noncontextualized Personality Measures

Field: Psychology (Social Sciences)

The empirical evidence that has accumulated in support of the notion that personality is a valid predictor of employee performance is vast, yet debate on the matter continues. This study investigates frame‐of‐reference effects as they relate to the validity of self‐report measures of personality. Specifically, we compare the validities of general, noncontextualized personality measures and work‐specific, contextualized measures. The findings suggest that personality measures are a more valid predictor of performance when the scale items or instructions are framed specifically so as to reference work‐specific behaviors. We found that the validities for noncontextualized measures of personality ranged from .02 to .22, with a mean validity of .11. The validities for contextualized measures ranged from .14 to .30, with a mean of .24 . Additional moderator analyses were conducted in an effort to examine several alternate explanations for these validity differences. Specifically, we examined differences between the developmental purpose (general use vs. workplace use) and reliabilities of each type of personality measure. We also compared the validities from published studies to those from unpublished studies. Results suggest that these moderators did not have an impact on the validity differences between noncontextualized and contextualized measures.