Miracle-dz/UniFAR-FTUs huggingface dataset:
Formation of protein complex with the aid of polyethylene glycol for deproteinized natural rubber latex

The effect of polyethylene glycol (PEG) as a deproteinizing agent in commercial natural rubber latex (NRL) onto the physicochemical properties of the NRL was investigated. Three types of PEG were used namely PEG200, PEG4000 and PEG20000 (molecular weight of 200, 4000 and 20000 g/mol respectively). The optimum amount of PEG in NRL was determined from viscosity changes, protein content and Fourier Transform Infrared spectroscopy. Level of protein reduction was affected by molecular weight of PEG. The addition of PEG in NRL reduced the protein content of NRL (3.30 %) to the lowest (2.01 %) at 0.40 phr of PEG200 due to more attractive hydrophobic interactions between short chains PEG compared to PEG4000 (2.24%) and PEG20000 (2.15%). This was verified through FTIR spectroscopy analysis by observing the primary and secondary amide peak where PEG4000 has lesser absorption at the region compared to with PEG20000.
The Pathway to Enrolling in a High-Performance High School: Understanding Barriers to Access

Abstract In 2017, Chicago Public Schools adopted an online universal application system for all high schools with the hope of providing more equitable access to high-performance schools. Despite the new system, black students and students living in low socioeconomic status (SES) neighborhoods remained less likely than their peers to enroll in a high-performance high school. In this paper, we characterize various constraints that students and families may face in enrolling in a high-performance high school, including eligibility to programs based on prior academic achievement, distance from high-performance options, elementary school performance ratings, and neighborhood SES. After adjusting for differences in these access factors, we find the gap between black and Latinx students’ likelihood of enrolling in a high-performing high school is reduced by about 80 percent. We find a similarly large reduction in the enrollment gap between students from low and middle SES neighborhoods after adjusting for eligibility and distance factors. These findings have implications for policies that may help equalize access to high-performance schools through changes to eligibility requirements and improved transportation options.
Game-theoretic Approach to Electricity Retail Pricing Design for Demand Response Management in Russian Regions

The paper evaluates present-day retail market electricity rates in Russia from the standpoint of demand response i.e., how they motivate the customers to reduce demand during critical peak periods. For that purpose, the daily payments of different types of customers in RF regions are analyzed. It is shown that not all the retail market rates now in force stimulate the reduction of peak loads. A theoretical game model is proposed for the formation of electrycity rates for different types of consumers that incentivizes the demand response.
Full-Endoscopic Lumbar Discectomy for Recurrent Lumbar Disc Herniation: A Retrospective Study with Patient-Reported Outcome Measures

Introduction Revision surgery for recurrent lumbar disc herniation after surgical treatment is at times challenging due to epidural adhesions and scar. This study aimed to review the clinical results and safety of full-endoscopic lumbar discectomy via interlaminar (FELD-IL) and transforaminal (FELD-TF) approaches for revision surgery. Methods We conducted a retrospective study including 52 lumbar disc herniation revision patients (mean age, 51.8 years; male/female, 13/39), with 17 FELD-IL and 35 FELD-TF cases. Complication incidences were assessed by reviewing surgical videos and postoperative magnetic resonance images of nerve decompression outcomes. Patients' responses to Japan Orthopedic Association Back Pain Evaluation Questionnaire (JOABPEQ) and numerical rating scales (NRS) for lumbar pain, leg pain, and leg numbness were recorded before and during follow-up. The Wilcoxon-signed rank tests were utilized to compare pre- and postoperative group variables. Results The average operation time was 33.0 min in FELD-IL and 31.7 min in FELD-TF. Seven FELD-IL cases required lamina excavation with high-speed drill bars for scar tissue dissection from the lamina. Dura injury occurred during the excavation in one case. No complication was noted in the FELD-TF group. Successful decompression of the nerve was achieved in all cases. Complete sets of JOABPEQ and NRS were obtained in 64.5% of FELD-IL and in 82.9% of FELD-TF. The mean follow-up period was 18.6 months. All the subdomain of JOABPEQ and NRS improved significantly postoperative in both groups. There was no difference regarding the improvement of scores between the procedures except NRS for lumbar pain, which was more favorable in FELD-IL. Recurrence of herniation occurred in one patient (6%) after FELD-IL and two patients (6%) after FELD-TF. Conclusions Both FELD-IL and FELD-TF are safe and effective revision procedures for recurrent lumbar disc herniation. FELD-TF could be performed employing the same procedure as primary surgery in revisions, regardless of the previous surgical approach.
Effects of Agricultural Drainage on Aquatic Ecosystems: A Review

The extensive development of surface and subsurface drainage systems to facilitate agricultural production throughout North America has significantly altered the hydrology of landscapes compared to historical conditions. Drainage has transformed nutrient and hydrologic dynamics, structure, function, quantity, and configuration of stream and wetland ecosystems. In many agricultural regions, more than 80% of some catchment basins may be drained by surface ditches and subsurface drain pipes (tiles). Natural channels have been straightened and deepened for surface drainage ditches with significant effects on channel morphology, instream habitats for aquatic organisms, floodplain and riparian connectivity, sediment dynamics, and nutrient cycling. The connection of formerly isolated wetland basins to extensive networks of surface drainage and the construction of main channel ditches through millions of acres of formerly low-lying marsh or wet prairie, where no defined channel may have previously existed, have resulted in large-scale conversion of aquatic habitat types, from wetland mosaics to linear systems. Reduced surface storage, increased conveyance, and increased effective drainage area have altered the dynamics of and generally increased flows in larger streams and rivers. Cumulatively, these changes in hydrology, geomorphology, nutrient cycling, and sediment dynamics have had profound implications for aquatic ecosystems and biodiversity.
Design, Synthesis and Biological Evaluation of the Novel Antitumor Agent Aurone Derivatives

Aurones belong to a class of heterocyclic flavonoids which contains a benzofuran element associated with a benzylidene linked in position 2. Aurones possess a wide range of pharmacological activities and biological activities, such as antitumor, antifungal, phytoalexin and so on. A novel series of 2-ayl-yl (5-methacrylate) aurone analogues were synthesized in six steps with the overall yield of 11%-13% and characterized by 1H NMR. Among the key intermediates and target compounds, 2-(2-furan-ylmethylene)-5-methacrylate-benzofuran-3(2H)-one (7a) and 2-(2-thienyl-ylmethylene)-5-methacrylate-benzofuran-3(2H)-one (7b) have never been reported before. Primary biological activities evaluation showed that 7a exhibited good inhibitory activities against K562 with an IC50 of 2.18 μM and against HepG2 with an IC50 of 3. 95μM.
Prevalence of Anemia, Iron-Deficiency Anemia, and Associated Factors among Children Aged 1–5 Years in the Rural, Malaria-Endemic Setting of Popokabaka, Democratic Republic of Congo: A Cross-Sectional Study

Iron deficiency (ID), the leading cause of anemia and the most common nutritional deficiency globally, is not well reported among children in malaria-endemic settings, and little is known about its contribution to anemia in these settings. We aimed to assess the prevalence of anemia, the role of ID using multiple parameters, and the factors associated with anemia in a malaria-endemic rural area. We conducted a community-based cross-sectional study of 432 children aged 1–5 years from the Popokabaka Health Zone, Democratic Republic of Congo. Sociodemographic characteristics, medical history, anthropometric parameters, and biochemical parameters were considered. Hemoglobin and malaria prevalence were assessed using rapid finger-prick capillary blood testing in the field. Venous blood samples were analyzed for serum ferritin, serum iron, total iron-binding capacity, and C-reactive protein (CRP) in a laboratory. Anemia was found in 294 out of 432 (68%) patients. Malaria was found in 375 out of 432 (87%), and ID in 1.8% according to diagnosis by adjusted ferritin only and in 12.9% according to transferrin saturation. ID indicators were not significantly correlated with low hemoglobin levels. Malaria, fever, and CRP > 5 mg/L were major factors associated with anemia in Popokabaka. Anemia control should focus on treating inflammatory conditions and infectious diseases among children in such settings.
VASI Questionnaire in the context of Brazilian Secondary Education: an Analysis of the Students' Understanding of Scientific Inquiry

Science education researchers agree that a better understanding of Scientific Inquiry (SI) is one of the main objectives of Scientific Literacy. Considering the Brazilian scenario in which SI is being implemented as a proposal for science education based on Base Nacional Comum Curricular (BNCC), the aim of this study was to assess the notions of 169 elementary school students regarding SI by administering the VASI questionnaire. This study had a qualitative approach, we categorized the answers in Naïve, Mixed and Informed according to the 8 aspects of SI proposed on the original questionnaire. A low percentage of answers were classified as Mixed or Informed. The results corroborate to the argument that activities that prioritize the doing inquiry do not necessarily lead the students knowing inquiry. We consider that the VASI questionnaire can be applied by teachers now that different curricula based on investigation are been adopted in Brazil.
ARRAY PATTERN RECOVERY UNDER AMPLITUDE EXCITATION ERRORS USING CLUSTERED ELEMENTS

In practice, the amplitude and phase excitations of array elements undergo random errors that lead to unexpected variations in the array radiation patterns. In this paper, the technique of the clustered array elements with discretized amplitude excitations is used to minimize the effect of random amplitude excitation errors and restore the desired array patterns. The most important feature of the proposed technique is its implementation in the design stage which may instantly count for any errors in the amplitude excitations. The cost function of the used optimizer is constrained to prevent any undesirable increase in the sidelobe levels due to unexpected excitation errors. Moreover, the error occurrences on the element amplitude excitations are considered to be either randomly over the whole array aperture or regionally (i.e., error affecting only a part of the array elements that located in a particular quadrant of the array aperture). Simulation results fully verify the effectiveness of the proposed technique.
THE VIBRATIONAL SPECTRA OF CRYSTALLINE AND AMORPHOUS PHOSPHOROUS

Inelastic neutron scattering measurements are reported on polycrystalline orthorhombic black phosphorous (o-black P) and on amorphous red phosphorous (a-red P). The a-red P results indicate that the vibrational density of states is composed of three distinct spectral bands, with gaps or pseudo-gaps separating these regions. While the high frequency phonon band of o-black P occurs near to that of a-red P, considerable differences exist at lower frequencies. In particular the lowest band in a-red P is less structured and shows a strong shift towards smaller energies i.e. a pronounced softening of the lower part of the a-red spectrum is displayed. The vibrational densities of states have been employed to determine the lattice specific heats and Debye temperatures.
The Relationship between Health- and Fitness-Related Social Media Use and Consumers' Disordered Eating

Health-related services shared through social media are enjoying considerable growth, particularly among young people, yet they have potentially detrimental outcomes for consumer well-being. This research undertakes an examination of literature pertaining to health-related social media use in an effort to explore its relationship with disordered eating in particular. In line with objectification theory, Study 1 affirms that viewing images and videos posted on health-related social media is positively associated with the level of people’s disordered eating. Furthermore, Study 2 clarifies that this relationship is mediated, as expected, by social physique anxiety, and it also is unexpectedly moderated by general social media use. That is, the relationship between viewing health-related images and videos and disordered eating is stronger among consumers who exhibit low and medium social media use rather than those with high social media use. The implications of these findings are relevant for both health-related service research and public policy.
A Linear Capacitive Sensor for ppm Moisture Measurement in SF₆ Gas-Insulated Switchgear

Moisture measurement and control is very essential for gas-insulated switchgear (GIS). For safe and reliable operation, the moisture inside GIS needs to be kept within the prescribed limit. This article presents a capacitive sensor for traces of moisture measurement in SF6 gas used in GIS. The sensor is fabricated using fluorine-doped tin oxide (FTO) glass as the base substrate and silver as the upper electrode. A thin film of porous alumina (Al2O3) is used as a sensing layer for detecting the presence of moisture at parts-per-million (ppm) scale. The performance of the presented sensor is experimentally validated for different moisture concentrations in SF6 gas. The sensor shows a good sensitivity (0.238 pF/ppm) with linear characteristics (±2.05%) over the moisture range of 246–725 ppm. The response of the fabricated sensor is very accurate (±0.84%), with low hysteresis (±0.32%) and highly repeatable (±0.013%). All the data of the fabricated sensor are obtained experimentally that validate its use for an effective moisture measurement in GIS where the live conductors and other electrical equipment are surrounded by SF6 gas. The cost-effectiveness of the sensor is ensured because of its simple fabrication process and robust design.
Fear of missing out (FoMO) y el uso de Instagram: análisis de las relaciones entre narcisismo y autoestima

The emerging phenomenon of FoMO has received the attention of a number of researchers. Studies have sought to establish the relationship between this phenomenon and the rise of social networks, and they have examined FoMO’s effects on the users of these networks. This paper continues this research in the form of a cross-sectional study aimed at establishing the relationships between fear of missing out, the use of the social network Instagram, narcissism and self-esteem. The sample consisted of 364 individuals, out of whom 301 participants were selected. Their ages ranged from 18 to 30 years old. For the purposes of this study, an ad hoc questionnaire was used for the variables related to Instagram use. Data were also gathered via the FoMO-E scale, the HSNS (to measure narcissism) and the Rosenberg self-esteem scale. The results show a positive correlation between the variables measuring Instagram use and FoMO, as well as between FoMO and narcissism. Meanwhile, there is a negative correlation between FoMO and self-esteem. Thus, the study’s initial hypotheses are confirmed. The study also has yielded new information on the studied constructs and their links to the use of social networks, specifi-cally Instagram.
Character Education in the New Paradigm of Pancasila Citizenship Education

Countries recognize that character and citizenship education are vital factors in developing the most significant human resources. There are many challenges both to policies and to the implementation of character education and citizenship in schools. This study aims to investigate students' character development in terms of values and moral education by analyzing the 2013 curriculum of Indonesian citizenship education. The citizenship education curriculum has introduced new terms such as civics, state citizenship education, Pancasila moral education, Pancasila education and citizenship education, civic education, and Pancasila education and citizenship. This study looked at and critically analyzed the relevant literature on Indonesia's citizenship education. It is concluded that Citizenship Education aims at developing civilizations in Indonesia, in particular, the building of a nation's character, by achieving diverse objectives in order to attain the national goals. Therefore, citizenship education is undeniable learning that must be taught at all levels of education, whether at elementary, secondary or tertiary level. In addition, Citizenship Education plays a significant role through curricular programs in both formal and non-formal education institutions. Citizenship Education as a socio-cultural movement, acts as a vehicle for citizens' self-actualization, both individually and in groups, by emphasizing rights, obligations, and the socio-cultural context, through direct and responsible active participation.
Deltamethrin Degradation and Soil Microbial Activity in a Riparian Wetland Soil

The effects of deltamethrin, in the presence and absence of nitrate, on soil microbial activity (as reflected by the rates of soil microbial basal respiration, denitrification, and methanogenesis) were studied in a riparian wetland soil under both aerobic and anaerobic conditions. A microcosm study was carried out with soil collected from the vicinity of a wetland. The soil was then amended with 50, 125, and 250 mg deltamethrin kg−1 dry weight soil, in the presence and absence of 20 mg N-NO3− kg−1 dry weight soil. Half-life values for deltamethrin degradation ranged from 27 to 291 days, depending on experimental conditions. Nitrates had an inhibitory effect on deltamethrin degradation. Deltamethrin, under anaerobiosis, had an inhibitory effect on soil respiration; this effect was reversed in the presence of nitrate. An antagonistic effect between deltamethrin degradation and denitrification activity was observed. In the presence of nitrate, the activation of denitrifying bacteria led to competitive inhibition of methanogens. It was concluded that deltamethrin, designed to affect specific functions of its target organisms, also has an effect on nontarget organisms, that is, the soil microbial community. To our knowledge, this is the first report on the degradation and environmental impact of deltamethrin in a riparian wetland soil.
Changes in Relative Gas Diffusivity Explain Soil Nitrous Oxide Flux Dynamics

Soil Sci. Soc. Am. J. doi:10.2136/sssaj2013.04. 0141 Received 13 Apr. 2013. *Corresponding author (nimlesh.nimlesh@lincolnuni.ac.nz). © Soil Science Society of America, 5585 Guilford Rd., Madison WI 53711 USA All rights reserved. No part of this periodical may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying, recording, or any information storage and retrieval system, without permission in writing from the publisher. Permission for printing and for reprinting the material contained herein has been obtained by the publisher. Changes in Relative Gas Diffusivity Explain Soil Nitrous Oxide Flux Dynamics Soil Physics
Immunohistochemical expression of visfatin in the gingival tissue of type II diabetes patients

Visfatin found to be associated with different systemic inflammatory diseases like diabetes and diseases of oral cavity like periodontal diseases so that the aim of this study to evaluate the expression of visfatin in the gingival tissue of control and uncontrolled type 2 diabetic patients. 28 type 2 diabetic patients divided into two groups, the first group consist of 18 control diabetic patients under hypoglycemic drug with chronic periodontitis, the second group which also consist of 18 patients but an uncontrolled diabetic(without hypoglycemic drug) and with chronic periodontitis and the third group 10 person with healthy periodontium. Their age was between (30-45) years and all patients in both groups were male and non-smokers. The periodontal condition was estimated by recording the plaque index, bleeding on probing, probing pocket depth and clinical attachment level. Gingival pocket epithelium samples were excised crown lengthening procedure and periodontal flap surgery in the diabetic group and healthy groups and then processed for hematoxylin and eosin staining then immunohistochemical staining for visfatin marker expression. Statistical analysis was done by using SPSS software and paired t‐test, Mann–Whitney test. Statistically significant was considered at a p-value less than 0.05. The mean value of all recorded periodontal parameters was highest among uncontrolled diabetic group compared to control with statistically significant difference existed between both groups (p=0.000) for plaque index, bleeding on probing, probing pocket depth and clinical attachment level. In regard to the immunohistochemistry staining, the Mann-Whitney test was used and the results revealed significant differences between the diabetic groups (p= 0.000). In conclusion, the study revealed the poor condition of the oral cavity regarding the periodontal condition of patients with type 2 diabetes, so the co-operation between diabetic centers and dentists needs to be increased. The immunohistochemical stain for visfatin was found more intense in the gingival tissue of the uncontrolled diabetic group compared to the control diabetic one. So that visfatin may have a link to the etiology and pathology of type 2 diabetes and chronic periodontitis.
Massenspektrometrische Untersuchungen an einigen Halogeniden der 5. Haupt- und Nebengruppe

Die Massenspektren einiger Halogenide der 5. Haupt- und Nebengruppe sowie einiger ihrer Substitutionsprodukte werden mitgeteilt. An Hand dieser Spektren sowie von Auftrittspotentialen werden Fragmentierungsprozesse sowie Fragen der Ladungsverteilungen, der Haufigkeiten und relativen Stabilitaten einzelner Fragmentionen und doppeltgeladener Ionen diskutiert. In einigen Fallen wurden in den Massenspektren Ionen polymerer Halogenide gefunden. The mass spectra of fifth group halids and some of their substitution products have been studied. Fragmentation processes, charge distributions as well as relative stabilities of fragment ions and double-charged ions are discussed. Appearance potentials have been measured and discussed, with reference to decomposition reactions and abundance considerations of fragment ions. In some cases polymeric ions were found in mass spectra.
Measurements of the Hydroxyl Radical in a Manipulated but Realistic Indoor Environment

Using an indirect technique to obtain a time-integrated signal, we have detected and quantified the hydroxyl radical (OH) in a commercial building. For the purpose of the measurements, the conditions in the office setting were manipulated, but they were representative of conditions that occur naturally. During monitoring periods when the concentrations of both ozone (O3) and d-limonene were elevated and the air exchange rate moderate, we found the average indoor OH concentration to be approximately 7 × 105 molecule/cm3. This value is lower than typical outdoor midday values (∼5 × 106 molecule/cm3) but larger than outdoor nighttime values. The results confirm that reactions among O3 and olefins can generate meaningful quantities of OH under conditions that commonly occur indoors. In turn, OH initiates a complex series of reactions that generate still other radicals and ultimately produce species that can adversely affect human health and artifacts in indoor environments.