jimnoneill/paper-to-field-training huggingface dataset:
Low-Cost Electrochemical Determination of L-Ascorbic Acid Using Screen-Printed Electrodes and Development of an Electronic Tongue for Juice Analysis

Field: Chemistry (Physical Sciences)

Low-cost electrochemical methodologies for the determination of L-ascorbic acid (vitamin C) and the analysis of juices are developed based on its electro-oxidation on carbon screen-printed electrodes. A novel chronoamperometric methodology is developed for the quantification of L-ascorbic acid in fruit juices. The proposed method stands out for its simplicity and rapidity, demonstrating its efficacy in determining L-ascorbic acid content in various fruit juices. Notably, the results obtained with this chronoamperometric approach are compared with those yielded by chromatography, with no significant differences between the two methods being found. Additionally, an electronic tongue is developed for the differentiation of juices based on the square wave voltammetric signals.
Microcomputer application in a library for document ordering and delivery

Field: Computer Science (Physical Sciences)

The CSTI Document Delivery Service (DDS) of the South African Council for Scientific and Industrial Research (CSIR) was compelled to examine alternative systems for request handling, record keeping and invoicing when its manual system could no longer cope with the ever increasing volume of requests. A fully computerised system on microcomputer was chosen and developed by a senior programmer in the Institute. It is now possible for a relatively small staff to handle the large and increasing volume of requests routinely and with ease. The system is also used for in‐house invoicing, accounts queries, credit control and automatic generation of statistics for record keeping and forward planning. This system has proved to be very flexible and it has led to a number of initially unforeseen advantages. One such advantage is electronic request transmission to the British Library Lending Division (BLLD) on its Automatic Request Transmission (ARTTel) system. Another is the possibility of using a similar system for the transmission of requests to the CSIR's Scientific Liaison Offices overseas. The link to the CSIR computer network also presents the possibility of using the DDS microcomputer as a terminal on the mainframe for archival purposes and for accessing the electronic mail service.
Comparison of Mechanical Properties of Plain and Reversed Curve Nickel-Titanium Archwires

Field: Dentistry (Health Sciences)

In orthodontics, nickel-titanium wires are used for teeth alignment and leveling. For leveling the curve of Spee, reversed curve archwires are often used to increase the vertical force needed to correct a deep bite.Objectives: The aims of this study were to investigate and compare the mechanical properties (unloading force, stiffness, springback, and surface hardness) of the pre-formed plain and reversed curved NiTi archwires.Materials and Methods: NiTi wires of dimensions 0.016x0.022 inch were divided into two groups, Group 1 - plain and Group 2- reversed curve NiTi archwires. For each type of the archwire, load-deflection curve obtained from a three-point bending test, performed by a Texture Analyser (TA.XT.plus, Stable Micro System, United Kingdom) with 5 kg load cell at room temperature, was used to analyze unloading force, springback, and stiffness. Surface hardness was measured by Vickers micro-hardness tester. Kruskal-Wallis test was used to analyze the variables of this study.Results: The results showed that the unloading force of each deflection point of the reversed curve NiTi archwire was more than the plain archwire. The means of unloading force, stiffness, and springback were 2.42 N, 2.76 N; 0.28 N/mm, 0.49 N/mm; and 2.94 mm, 2.98 mm for the plain archwire and reversed curve NiTi archwire, respectively. The properties of reversed curve NiTi archwire were significantly higher (p<0.05) than the plain NiTi archwire, except the springback. The surface hardness of the plain archwire was significantly higher (p<0.05) than reversed curve NiTi archwire in each segment.Conclusion: The reversed curve NiTi archwire had more unloading force and stiffness than plain NiTi archwire. For the correction of deep curve of Spee in orthodontic treatment, clinicians must be aware of the vertical force needed during intrusion of lower incisors or the wires should be used in the later leveling and aligning stage.
EVALUATION OF THE EFFECT OF STATIC DEFORMATIONS OF THE SPINE AND POSTURAL BALANCE ON CARDIOVASCULAR AND RESPIRATORY SYNCHRONISM

Field: Medicine (Health Sciences)

Introduction. The article described the methodology of the objective express diagnostics of cardiovascular and respiratory synchronism depending on manifestations of static spinal deformities. The approaches to simultaneous static and dynamic studies of postural balance with spiro-arterio-cardiorhythmography were discussed. The objective of the work was to determine the mutual influence of static and dynamic postural balance on cardiovascular and respiratory synchronism. Material and methods. We analyzed indicators of static and dynamic postural balance and indicators of cardiovascular and respiratory synchronism among the population without manifested signs of pathology from the studied body systems. Results. The effect of static spinal deformities was observed only on the functional indicators of respiration. Statistically significant correlations of static spinal deformities were observed only with functional respiratory parameters. Indicators of cardiovascular and respiratory synchronism were not affected. Conclusion. The lordotic variant of the static spinal deformity, in contrast to the kyphotic and scoliotic variant, reliably affected the functional indicators of the respiratory system, as well as the indicators of cardiovascular and respiratory synchronism. The balance of sagittal deformities correlated with functional indicators of cardiovascular and respiratory systems, as well as with indicators of cardiovascular and respiratory synchronism. It was important to emphasize that in order to maintain cardiovascular and respiratory compliance with the most commonly diagnosed variants of static deformity (kyphotic and scoliotic), significant modifications in cardiovascular and respiratory regulation were observed much less frequently than alongside with lordotic deformity.
Customer Satisfaction Evaluation on Tokopedia E-Commerce Platform under Belt and Belt and Road Initiative

Field: Business, Management and Accounting (Social Sciences)

This research intended to study the Customer Satisfaction Evaluation on Tokopedia E-Commerce Platform under Belt and Road Initiative where this is based on the dimensions of performance, features, reliability, conformance, durability, serviceability, aesthetics, and perceived quality. The method used in this research is observation, questionnaires, and literature. While for the data analysis technique used is Multiple Linear Regression Analysis. The author takes an object of research in the year 2021 with a total sample of 358 respondents. Data collection technique that is adopted is convenience sampling method. The author distributed the questionnaires with 39 questions using dimensional performance, feature, reliability, conformance, durability, serviceability, aesthetics, and perceived quality. Belt and Road Initiative (BRI) through Indonesia’s E-Commerce Platform Tokopedia, Performance (X1), Reliability (X2), Feature (X3), Conformance (X4), Durability (X5), Serviceability (X6), Aesthetics (X7), Perceived Quality (X8) simultaneously affects the dependent variable Customer Satisfaction (Y). The percentage of the influence of the independent variables on the dependent variable is shown by the coefficient of simultaneous determination (R2). In this study, the magnitude of the R Square is 0.979. This means that the rise and fall of the dependent variable, namely performance (Y), is influenced by the independent variables, namely Performance (X1), Reliability (X2), Feature (X3), Conformance (X4), Durability (X5), Serviceability (X6), Aesthetics (X7), Perceived Quality (X8) by 97.9% while the remaining 2.1 percent is influenced by other variables outside of this study. There is a positive significant influence of Belt and Road Initiative (BRI) through the Product Quality towards the Customer Satisfaction Evaluation of Tokopedia Indonesia. Keywords: Belt and Road (BRI), Customer Satisfaction, Product Quality, Tokopedia DOI: 10.7176/JESD/12-6-02 Publication date: March 31 st 2021
Spatial variation in egg polymorphism among cuckoo hosts across 4 continents

Field: Agricultural and Biological Sciences (Life Sciences)

Abstract Although egg color polymorphism has evolved as an effective defensive adaptation to brood parasitism, spatial variations in egg color polymorphism remain poorly characterized. Here, we investigated egg polymorphism in 647 host species (68 families and 231 genera) parasitized by 41 species of Old Word cuckoos (1 family and 11 genera) across Asia, Europe, Africa, and Australia. The diversity of parasitic cuckoos differs among continents, reflecting the continent-specific intensities of parasitic selection pressure on hosts. Therefore, host egg polymorphism is expected to evolve more frequently on continents with higher cuckoo diversity. We identified egg polymorphism in 24.1% of all host species and 47.6% of all host families. The common cuckoo Cuculus canorus utilized 184 hosts (28.4% of all host species). Hosts of the common cuckoo and of Chrysococcyx species were more likely to have polymorphic eggs than hosts parasitized by other cuckoos. Both the number of host species and the host families targeted by the cuckoo species were positively correlated with the frequency of host egg polymorphism. Most host species and most hosts exhibiting egg color polymorphism were located in Asia and Africa. Host egg polymorphism was observed less frequently in Australia and Europe. Our results also suggested that egg polymorphism tends to occur more frequently in hosts that are utilized by several cuckoo species or by generalist cuckoo species. We suggest that selection pressure on hosts from a given continent increases proportionally to the number of cuckoo species, and that this selection pressure may, in turn, favor the evolution of host egg polymorphism.
Additional file 9 of Genomic bases underlying the adaptive radiation of core landbirds

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

Additional file 9: Table S9. The genes under relatively relaxed selection (k < 1) and relatively intensified selection (k > 1) along the common ancestor branch (test branch) of core landbirds relative to the common ancestor branch (reference branch) of core landbirds and their sister taxa, waterbirds. This result is based on the whole avian dataset.
SN 2005cg: Explosion Physics and Circumstellar Interaction of a Normal Type Ia Supernova in a Low‐Luminosity Host

Field: Physics and Astronomy (Physical Sciences)

We present the spectral evolution, light curve, and corresponding interpretation for the "normal-bright" Type Ia Supernova 2005cg discovered by ROTSE-IIIc. The host is a low-luminosity (M_r = -16.75), blue galaxy with strong indications of active star formation and an environment similar to that expected for SNe Ia at high redshifts. Early-time (t ~ -10 days) optical spectra obtained with the HET reveal an asymmetric, triangular-shaped Si II absorption feature at about 6100 \AA with a sharp transition to the continuum at a blue shift of about 24,000 km s^-1. By 4 days before maximum, the Si II absorption feature becomes symmetric with smoothly curved sides. Similar Si II profile evolution has previously been observed in other supernovae, and is predicted by some explosion models, but its significance has not been fully recognized. Although the spectra predicted by pure deflagration and delayed detonation models are similar near maximum light, they predict qualitatively different chemical abundances in the outer layers and thus give qualitatively different spectra at the earliest phases. The Si line observed in SN 2005cg at early times requires the presence of burning products at high velocities and the triangular shape is likely to be formed in an extended region of slowly declining Si abundance that characterizes delayed detonation models. The spectra show a high-velocity Ca II IR feature that coincides in velocity space with the Si II cutoff. This supports the interpretation that the Ca II is formed when the outer layers of the SN ejecta sweep up about 5 x 10^-3 M_sun of material within the progenitor system. (Abridged)
PENGUATAN SEMANGAT BELAJAR MELALUI PEMBELAJARAN BAHASA ASING

Field: Social Sciences (Social Sciences)

TThis Community Service activity report regarding Strengthening the Spirit of Learning through Foreign Language Learning at the Al-Muniri Islamic Boarding School was conceptualized with guidance on strengthening foreign languages, namely Arabic and English, which is carried out every Wednesday, Thursday and Friday. The background is because the al- Muniri institution was founded under the auspices of the al-Muniri Islamic boarding school, where the students come from santri backgrounds who are not too familiar with foreign languages, especially Arabic itself, but to further improve students' mastery of foreign languages, it is carried out also guidance on strengthening other foreign languages, namely English, because Arabic and English are international languages. This Community Service Activity is carried out using the Asset Based Community Development (ABCD) method. This method aims to develop the assets owned by the village. Through the ABCD method, the assets developed are community assets, namely Al-Muniri Middle School and High School students. The foreign language strengthening guidance process goes through several stages, namely initial deliberations with the teachers, the general person in charge of Al-Muniri School, and the English teacher.
Functionalized coconut husks for rhodamine-B dye sequestration

Field: Environmental Science (Physical Sciences)

Abstract This study investigates the efficacy of acid activated coconut husk (CHA) for the removal of rhodamine-B (Rh-B) dye from aqueous solutions. The CHA prepared was characterized using various techniques: SEM, FTIR EDX, Boehm titration and pH pzc , respectively. The effects of different operational parameters including initial concentration, contact time and solution temperatures were examined. Kinetic data for Rh-B dye adsorption onto CHA fitted best to pseudo-second-order kinetic model considering the correlation regression ( R 2 ) and the sum of squares of error values. Adsorption data were fitted to Langmuir, Freundlich, Dubinin–Radushkevich and Temkin isotherm models. Langmuir isotherm was the most fitted among all the models used with maximum monolayer sorption capacity of 1666.67 mg g −1 and the highest regression value of 0.99 indicating that CHA has greater affinity for Rh-B dye adsorption due to increased pore development via acid activation. Thermodynamic studies revealed an endothermic adsorption process with the Δ H 0 value of 62.77 kJ mol −1 . Spontaneity was ascertained based on the negative values of Δ G o (ranging from − 26.38 kJ mol −1 to − 20.93 kJ mol −1 ). The positive value of Δ S 0 (0.276 kJ mol −1 K −1 ) suggests increased randomness that exists between CHA and Rh-B dye. Cost analysis results revealed that CHA is six times cheaper than commercial activated carbon (CAC), providing a savings of 217 US$ kg −1 . CHA adsorbent was found to be suitable for Rh-B dye removal from aqueous solution.
Fiber tractography of the axonal pathways linking the basal ganglia and cerebellum in Parkinson disease: implications for targeting in deep brain stimulation

Field: Neuroscience (Life Sciences)

Object Stimulation of white matter pathways near targeted structures may contribute to therapeutic effects of deep brain stimulation (DBS) for patients with Parkinson disease (PD). Two tracts linking the basal ganglia and cerebellum have been described in primates: the subthalamopontocerebellar tract (SPCT) and the dentatothalamic tract (DTT). The authors used fiber tractography to evaluate white matter tracts that connect the cerebellum to the region of the basal ganglia in patients with PD who were candidates for DBS. Methods Fourteen patients with advanced PD underwent 3-T MRI, including 30-directional diffusion-weighted imaging sequences. Diffusion tensor tractography was performed using 2 regions of interest: ipsilateral subthalamic and red nuclei, and contralateral cerebellar hemisphere. Nine patients underwent subthalamic DBS, and the course of each tract was observed relative to the location of the most effective stimulation contact and the volume of tissue activated. Results In all patients 2 distinct tracts were identified that corresponded closely to the described anatomical features of the SPCT and DTT, respectively. The mean overall distance from the active contact to the DTT was 2.18 ± 0.35 mm, and the mean proportional distance relative to the volume of tissue activated was 1.35 ± 0.48. There was a nonsignificant trend toward better postoperative tremor control in patients with electrodes closer to the DTT. Conclusions The SPCT and the DTT may be related to the expression of symptoms in PD, and this may have implications for DBS targeting. The use of tractography to identify the DTT might assist with DBS targeting in the future.
Research on distribution automation security situational awareness technology based on risk transmission path and multi-source information fusion

Field: Engineering (Physical Sciences)

Abstract It may be difficult for existing methods to make full use of the correlation and complementarity of various kinds of information when processing multi-source information. In order to accurately perceive the security situation of distribution automation and ensure the safe and stable operation of distribution network, the multi-source information fusion distribution automation security situation awareness technology based on risk transmission path is studied. Based on the risk transmission path, the distribution automation security situational awareness factors are analyzed, and the main factors affecting the distribution automation security situation are divided into two dimensions: internal source and external source, and eight main awareness factors; Different types of sensors are set in the main areas of security situational awareness factors to collect data of different awareness factors. Using ant colony algorithm to optimize DS evidence fusion method, data with different perception factors are fused, and data fusion results with different perception factors are obtained. The distribution automation security situational awareness model is constructed, and the security situational awareness results are obtained based on the data fusion results of the awareness factors. If the results are higher than the set threshold, the abnormal signal can be output to determine the area where the distribution automation abnormal equipment is located. The experimental results show that the multi-source data fusion effect of this method is good, and it can accurately perceive the security status of different nodes of the experimental object at different time nodes.
Aspirin, “Super Aspirin” Use in Women for Cardioprevention Probed

Field: Medicine (Health Sciences)

Our website uses cookies to enhance your experience. By continuing to use our site, or clicking "Continue," you are agreeing to our Cookie Policy | Continue JAMA HomeNew OnlineCurrent IssueFor Authors Publications JAMA JAMA Network Open JAMA Cardiology JAMA Dermatology JAMA Health Forum JAMA Internal Medicine JAMA Neurology JAMA Oncology JAMA Ophthalmology JAMA Otolaryngology–Head & Neck Surgery JAMA Pediatrics JAMA Psychiatry JAMA Surgery Archives of Neurology & Psychiatry (1919-1959) Podcasts Clinical Reviews Editors' Summary Medical News Author Interviews More JN Learning / CMESubscribeJobsInstitutions / LibrariansReprints & Permissions Terms of Use | Privacy Policy | Accessibility Statement 2023 American Medical Association. All Rights Reserved Search All JAMA JAMA Network Open JAMA Cardiology JAMA Dermatology JAMA Forum Archive JAMA Health Forum JAMA Internal Medicine JAMA Neurology JAMA Oncology JAMA Ophthalmology JAMA Otolaryngology–Head & Neck Surgery JAMA Pediatrics JAMA Psychiatry JAMA Surgery Archives of Neurology & Psychiatry Input Search Term Sign In Individual Sign In Sign inCreate an Account Access through your institution Sign In Purchase Options: Buy this article Rent this article Subscribe to the JAMA journal
Effect of pro‐oxidants on biodegradation of polyethylene (LDPE) by indigenous fungal isolate, Aspergillus oryzae

Field: Environmental Science (Physical Sciences)

Abstract Proxidant additives represent a promising solution to the problem of the environment contamination with polyethylene film litter. Pro‐oxidants accelerate photo‐ and thermo‐oxidation and consequent polymer chain cleavage rendering the product apparently more susceptible to biodegradation. In the present study, fungal strain, Aspergillus oryzae isolated from HDPE film (buried in soil for 3 months) utilized abiotically treated polyethylene (LDPE) as a sole carbon source and degraded it. Treatment with pro‐oxidant, manganese stearate followed by UV irradiation and incubation with A. oryzae resulted in maximum decrease in percentage of elongation and tensile strength by 62 and 51%, respectively, compared with other pro‐oxidant treated LDPE films which showed 45% (titanium stearate), 40% (iron stearate), and 39% (cobalt stearate) decrease in tensile strength. Fourier transform infrared (FTIR) analysis of proxidant treated LDPE films revealed generation of more number of carbonyl and carboxylic groups (1630–1840 cm −1 and 1220–1340 cm −1 ) compared with UV treated film. When these films were incubated with A. oryzae for 3 months complete degradation of carbonyl and carboxylic groups was achieved. Scanning electron microscopy of untreated and treated LDPE films also revealed that polymer has undergone degradation after abiotic and biotic treatments. This concludes proxidant treatment before UV irradiation accelerated photo‐oxidation of LDPE, caused functional groups to be generated in the polyethylene film and this resulted in biodegradation due to the consumption of carbonyl and carboxylic groups by A. oryzae which was evident by reduction in carbonyl peaks. Among the pro‐oxidants, manganese stearate treatment caused maximum degradation of polyethylene. © 2011 Wiley Periodicals, Inc. J Appl Polym Sci, 2011
Cardiac Conduction Disorders in Acute Coronary Syndrome with St Elevation: Study of 51 Cases

Field: Medicine (Health Sciences)

1. Introduction: Cardiac conduction disorders are complications that can occur in the early development of acute coronary syndrome with ST segment elevation and have a significant influence on the patients prognosis. Objective: The determine the epidemiological clinical and therapeutic aspects of conduction disorders with elevation in the ST segment. Methods: We have performed a descriptive retrospective study of 51 cases of conduction disorder among 228 cases of coronary syndromes with ST segment elevation. Results: The prevalence of cardiac conduction disorders was 14.1% over a period of 4 years. The average age of our patients was 59 years old (extremes: 42 to 81 years old). Diabetes was the most prevalent risk factor (52.4%). Low location was the most found (56%) and conduction disorders were dominated by atrioventricular block (45.09%).Coronary angiography was performed in all our patients. The found lesions in coronary angiography concerned more the right coronary (37.3%) and circumflex artery (34.1%). Coronary angioplasty has been performed in 72 % of cases, and thrombolysis in 9, 8%. The implantation of temporary pace maker was done in 33% of cases. The evolution was favorable for all our patients. Conclusion: Conduction disorders in ST-segment elevation coronary syndrome should be diagnosed early for timely and adequate management in order to reduce the high objective mortality rates.