Miracle-dz/UniFAR-FTUs huggingface dataset:
Thermal Conductivity, Heat Capacity, and Elastic Constants of Water-Soluble Polymers and Polymer Blends

We use time-domain thermoreflectance (TDTR), and the generation and detection of longitudinal and surface acoustic waves, to study the thermal conductivity, heat capacity, and elastic properties of thin films of poly(vinyl alcohol) (PVA), poly(acrylic acid) (PAA), polyacrylamide (PAM), poly(vinylpyrrolidone) (PVP), methyl cellulose (MC), poly(4-styrenesulfonic acid) (PSS), poly(N-acryloylpiperidine) (PAP), poly(methyl methacrylate) (PMMA), and a polymer blend of PVA/PAA. The thermal conductivity of six water-soluble polymers in the dry state varies by a factor of ≈2, from 0.21 to 0.38 W m–1 K–1, where the largest values appear among polymers with a high concentration of hydrogen bonding (PAA, PAM, PSS). The longitudinal elastic constants range from 7.4 to 24.5 GPa and scale linearly with the shear elastic constants, suggesting a narrow distribution of Possion’s ratio 0.35 < ν < 0.40. The thermal conductivity increases with the average sound velocity, as expected based on the model of the minimum thermal c.
The Devil is in the Details: Firm-Specific or Market Information in Shareholder Activism

This study measures how shareholder activism may change market participants’ processing and incorporation of different types of information. Specifically, I examine the earnings response coefficient (ERC), price delay, and probability of informed trading (PIN), which capture the usage of firm-specific public information, public market-wide information, and firm-specific private information, respectively. I find an increase in ERC, price delay, and PIN during shareholder activism. I also find an influx of attention-based trading in the 2 quarters immediately after 13D filing, which is subsequently replaced by information-based trading. The findings are consistent with a slower reflection of publicly available market-wide information and investors engaging in more firm-specific information processing. Investors appear to substitute more general information with focused information about activist targets in their trading decisions.
Fatty and amino acid compositions of Vernicia fordii : a source of α-eleostearic acid and methionine

Sandeep Kumar1*, MK Dhillon2, M Singh3, RS Rathi4, AK Misra5 & JC Rana1 1Division of Germplasm Evaluation; 4Division of Plant Exploration and Germplasm Collection, ICAR-National Bureau of Plant Genetic Resources, New Delhi-110 012, India 2Division of Entomology, ICAR-Indian Agricultural Research Institute, New Delhi-110 012, India 3ICAR-National Bureau of Plant Genetic Resources Regional Station, Shimla-171 004, India 5ICAR-National Bureau of Plant Genetic Resources Regional Station, Shillong-793 103, India
Multi-Task Feature Selection for Speech Emotion Recognition: Common Speaker-Independent Features Among Emotions

Feature selection is the one of the most important steps in designing speech emotion recognition systems. Because there is uncertainty as to which speech feature is related to which emotion, many features must be taken into account and, for this purpose, identifying the most discriminative features is necessary. In the interest of selecting appropriate emotion-related speech features, the current paper focuses on a multi-task approach. For this reason, the study considers each speaker as a task and proposes a multi-task objective function to select features. As a result, the proposed method chooses one set of speaker-independent features of which the selected features are discriminative in all emotion classes. Correspondingly, multi-class classifiers are utilized directly or binary classifications simply perform multi-class classifications. In addition, the present work employs two well-known datasets, the Berlin and Enterface. The experiments also applied the openSmile toolkit to extract more than 6500 features. After feature selection phase, the results illustrated that the proposed method selects the features which is common in the different runs. Also, the runtime of proposed method is the lowest in comparison to other methods. Finally, 7 classifiers are employed and the best achieved performance is 73.76% for the Berlin dataset and 72.17% for the Enterface dataset, in the faced of a new speaker . These experimental results then show that the proposed method is superior to existing state-of-the-art methods.
Additives Effects on Crystal Morphology of Dihydroxylammonium 5,5ʹ-Bistetrazole-1,1ʹ-diolate by Molecular Dynamics Simulations

Dihydroxylammonium 5,5′-bistetrazole-1,1′-diolate (TKX-50) is a newly synthesized explosive with excellent comprehensive properties: high energy storage, low impact sensitivity, and low toxicity. To understand and improve the crystal morphology of TKX-50, we reported the polymer consistent force field to simulate the crystal morphology of TKX-50 by growth morphology (GM) method. We then used this force field in molecular dynamics (MD) simulations to predict the influences of additives on crystal facets of TKX-50. The calculated results indicate that ethanol, ethylene glycol, and acetic acid are more favorable to the spheroidization of TKX-50, which provides a theoretical support for the additive selection of crystalline system. Furthermore, we added the selected additives in the recrystallization system of TKX-50. The recrystallized samples possessed a small aspect ratio and were close to spherical in shape, which indicates that the experimental results are consistent with the simulated results.
Deterioration of Mechanical Properties of MBE-Grown, Metastable Semiconductor Layer with Time: the Case of Zinc Blende MnTe

Deterioration of Mechanical Properties of MBE-Grown, Metastable Semiconductor Layer with Time: the Case of Zinc Blende MnTe S. Adamiaka,∗, E. Dynowska, A. Dziedzic, K. Szmuc, E. Janikb,†, M. Wiater, T. Wojtowicz and W. Szuszkiewicz Faculty of Mathematics and Natural Sciences, University of Rzeszow, S. Pigonia 1, PL–35310 Rzeszow, Poland Institute of Physics, Polish Academy of Sciences, Aleja Lotnikow 32/46, PL–02668 Warsaw, Poland
Relationship of structure to properties in surfactants. 10. Surface and thermodynamic properties of 2-dodecyloxypoly(ethenoxyethanol)s, C12H25(OC2H4)xOH, in aqueous solution

The surface and thermodynamic properties of homogeneous surfactants of structure C/sub 12/H/sub 25/(OC/sub 2/H/sub 4/)XOH, where X = 2-8, purified by passages through a column of octadecylsilanized silica gel, have been investigated. Surface tension, as a function of concentration of the surfactant in an aqueous solution, was measured at 10, 25, and 40C, using the Wilhelmy plate technique. From these measurements, the maximum surface excess concentration and the minimum area per molecule at the aqueous solution/air interface, the critical micelle concentration (CMC), the surface pressure at the CMC, and the standard thermodynamic parameters of adsorption and micellization were calculated. Structural effects on adsorption, micellization, and the effectiveness of surface tension reduction are discussed in terms of these parameters. 21 references.
Pharmacokinetics and relative bioavailability of cyclovirobuxine D orally disintegrating tablets in healthy volunteers

AIM:To study the relative bioavailability and bioequivalence of cyclovirobuxine D orally disintegrating tablets and cyclovirobuxine D tablets in healthy volunteers. METHODS: 2 mg of cyclovirobuxine D orally disintegrating tablets and cyclovirobuxine D tablets was given to 22 healthy volunteers in a randomized crossover study. The concentration of cyclovirobuxine D in plasma was determined by LC/MS/MS after a solid phase extraction (SPE). The pharmacokinetic parameters were calculated and the bioavailability and bioequivalence of two formulations were evaluated by DAS 2.0 software. RESULTS: After a single dose, the pharmacokinetic parameters of cyclovirobuxine D and reference were as follows: Cmax, (121±55) and (122±52) ng/L; tmax, (10±7) and (12±8) h; AUC0-120 h, (4398±1656) and (4524±1760) ng·L-1·h; AUC0→inf, (5292±2034) and (5440±2446) ng·L-1·h, respectively. The 90% confidential interval of Cmax of cyclovirobuxine D orally disintegrating tablet was 82.7%-117.3%. The 90% confidential interval of AUC0-120 and AUC0→inf of cyclovirobuxine D orally disintegrating tablet were 83.9%-112.9% and 83.4%-117.6%, respectively. CONCLUSION: The relative bioavailability of cyclovirbuxine D orally disintegrating tablets to cyclovirobuxine D tablets is (97.7±14.7)%. The results of the statistic analysis show that the test and reference formulations are bioequivalent.
What can a Worm Learn? Nonlinear Categorization by Caenorhabditis elegans using a Hydrochloric Acid Gradient

Microorganisms have been utilized to study the human nervous system for decades. However, the computational capabilities of the neural networks of microorganisms are often not well understood. The goal of this experiment was to determine the level of neural complexity in the microorganism, Caenorhabditis elegans, by examining whether its neural networks are capable of learning categories that are not linearly separable. C. elegans were once thought to possess only a fixed neural network, but then their ability to learn associations and simple linear classifications was discovered. No microorganism is known to have the next level of computational capability, that of performing nonlinear classification. Here, it was hypothesized that C. elegans would be able to learn nonlinearly separable classes. This was tested by setting up three levels of an HCl gradient and associating them with food, in a one - dimensional nonlinear classification problem. Positive and negative associations between HCl levels and the presence/absence of food could only be learned through a nonlinear decision boundary. C. elegans were put into petri dishes with three distinct HCl concentrations of 100 μ M, 200 μ M, and 300 μ M. During training, 100 μ M and 300 μ M values were associated with E. coli (positive category), while 200 μ M was associated with the absence of E. coli (negative category). The learning was then tested in separate dishes by examining the movement of C. elegans towards positively or negatively trained concentrations. In a second experiment, the reverse association (100 μ M and 300 μ M negative; 200 μ M positive) was also established through training and tested. The results showed that C. elegans were able to learn these positive and negative associations, thus acquiring a nonlinear decision boundary (100/300 positive test: x - squared = 24.06, p < 0.001; 100/300 negative test: x - squared = 7.5958, p < 0.023). This demonstrates, for the first time, that the neural networks of C. elegans possess sufficient computational complexity, requiring at least three layers of neurons, to learn nonlinear classification. This advances our understanding of the computational sophistication of the neural networks of even the simplest microorganisms.
Root growth of cultivated and “wild” olive in response to potassium mineral nutrition

ABSTRACT Nutrient availability affects root growth. The effect of potassium (K) level on the root growth, weight, and elongation, as well as on nutrient content of the olive genotypes “Megaritiki,” “wild” olive, “Chondrolia Chalkidikis,” “Biancolilla,” and K utilization efficiency was investigated. For this purpose, a greenhouse experiment was carried out in the farm of the Aristotle University of Thessaloniki. Three treatments were used: T1, that is, 25% modified Hoagland nutrient solution without K in distilled water, T2: 25% modified Hoagland nutrient solution with 0.2 mM K in distilled water, and T3: 25% modified Hoagland nutrient solution with 1.5 mM K in distilled water. K concentration had no significant effect on root growth of olive genotypes. The maximum root elongation was observed in the “wild olive,” in the T3 treatment, and the minimum in “Biancolilla,” in the T1 treatment. K utilization efficiency significantly differed between K treatments for the same genotype, as well as among genotypes for the same K treatment, following the order: Megaritiki > wild olive > Chondrolia Chalkidikis > Biancolilla. Finally, significant differences were found with regard to the effect of K treatment and olive genotype on many macronutrient and micronutrient concentrations in leaves and roots.
We Succeeded Together, Now What: Relationship Power and Sequential Decisions in Couples’ Joint Goal Pursuits

Research has demonstrated that after making high goal progress, consumers feel liberated to engage in goal-inconsistent behaviors. But what happens after consumers make high progress in the context of joint goal pursuit? The authors examine how jointly made progress toward a joint goal pursued by couples affects subsequent individually made goal-relevant decisions. Across five experiments with both lab-created couples and married participants and financial data from a couples’ money management mobile app, the authors show that after making high progress on a joint goal (vs. low or no progress), partners with higher relationship power are more likely to disengage from the joint goal to pursue personal concerns (e.g., indulge themselves, pursue individual goals), whereas partners with lower relationship power do not disengage from the joint goal and continue engaging in goal-consistent actions that maintain its pursuit. The authors elucidate the underlying mechanism, providing evidence that the joint goal progress boosts the relational self-concept of high- (but not low-) relationship-power partners, and this drives the effects. Importantly, they demonstrate the effectiveness of two theory-grounded and easily implementable interventions that promote goal-consistent behaviors among high-relationship-power consumers in the context of joint savings goals.
An unresolved analogue of the Littlewood Conjecture

This article begins with an introduction to a conjecture made around 1930 in the area of Diophantine approximation: the Littlewood Conjecture. The conjecture asks whether any two real numbers can be simultaneously well approximated by rational numbers with the same denominator. The introduction also focuses briefly on an analogue of this conjecture, regarding power series and polynomials with coefficients in an infinite field. Harold Davenport and Donald Lewis disproved this analogue of the Littlewood Conjecture in 1963. Following the
A case of multifocal central serous chorioretinopathy from a progestin-only contraceptive device

Purpose: To present a novel case of central serous chorioretinopathy (CSCR) diagnosed in a woman three weeks after implantation of Nexplanon, a progestin-only contraceptive device. Methods: Case report. Results and Discussion: A 35-year-old healthy woman presented with one-week duration of headache and photopsias in the right eye, three weeks after implantation of a progestin-only contraceptive device. Imaging demonstrated subretinal fluid in the right eye suggestive of central serous chorioretinopathy. Removal of the device was associated with a rapid restoration of visual acuity as well as resolution and sustained absence of CSCR on imaging.
Electrochemical, continuous-flow determination of p-benzoquinone on a gold nanoparticles poly(propylene-co-imidazole) modified gold electrode

ABSTRACT A novel continuous flow biosensor based on gold nanoparticles and poly(propylene-co-imidazole) was developed for the online determination of p-benzoquinone. The amperometric response was measured as a function of p-benzoquinone concentration at an applied potential of −50 mV. The hydrogen peroxide concentration was optimized and fixed at 1 mM in samples. The mass transfer resistance of the copolymer film was minimized, and the flow cell was regenerated quickly at 1 mL/min. The resulting device provided good analytical performance based on a linear dynamic range from 5–100 µM, a short response time of 3 s, a detection limit of 3.3 µM, excellent repeatability with a relative standard deviation of 0.82%, long-term stability of 95% after four weeks, and an accuracy of 105%. The gold nanoparticles enhanced the electron transfer rate on the electrode. The apparent Michaelis-Menten constant was 4 mM, showing that the enzyme retained catalytic specificity and provided high activity for p-benzoquinone.
Distillation and Isolation of Commodity Chemicals from Bio-Oil Made by Tail-Gas Reactive Pyrolysis

Owing to instabilities, very little has been accomplished with regard to simple cost-effective separations of fast pyrolysis bio-oil. However, recent developments in the use of tail-gas reactive pyrolysis (TGRP) (Mullen, C. A.; Boateng, A. A.; Goldberg, N. M. Energy Fuels 2013.) provide higher quality bio-oils that are thermally stable. We used fractional distillation to isolate compounds from bio-oil produced by TGRP. All bio-oils produced from TGRP contained significantly less acid (0.2–4% total), trace amounts of aldehydes, and significantly higher concentrations of hydrocarbons and phenolics (5–20% each). One TGRP bio-oil rich in naphthalenes yielded the greatest mass of distillates (close to 65%). Using atmospheric distillation alone, we recovered the most distillates from another phenol-rich TGRP oil. Compared to traditional bio-oils, distillation of TGRP oils yielded three times more organic compounds; the yield improvement increases to a factor of 10 when the contribution of acetic acid is removed.
Multi-Year Case Study in Blended Design: Student Experiences in a Blended, Synchronous Distance Controls Course

This case study combines two primary areas of literature, blended learning and synchronous distance instruction. The literature provides various interpretations and definitions of blended learning. We define blended learning as a classroom learning model that integrates in-person and online asynchronous instruction with reduced time in class. We discuss blended learning with a synchronous distance teaching component that incorporates evidence-based instructional strategies. We explore a specific mode of synchronous distance instruction where the faculty member is physically located with one set of students and other students are connected into the class remotely. In our case study, students are located in two classrooms on two campuses that are sixty miles apart. The instructor facilitates instruction from either of the campuses. With these two definitions in mind, we present insights from this case study into student experiences in a linear controls course over a three year period (2016, 2018, 2019) in a blended, synchronous distance classroom. A follow-up on the impact of COVID-19 (2020) on the course is also presented along with a comparison of student performance on an individual design project during the years of the study and during COVID-19. Throughout the three-cohort study, students experienced high levels of perceived benefit and engagement in the online course content. Empirical data indicates that the course design proved to be effective in facilitating student achievement both before and during COVID-19. © 2021 American Society for Engineering Education. All rights reserved.
IMPLEMENTASI ANALITYCAL NETWORKING PROCESS (ANP) DISTRIBUSI ZAKAT TERHADAP PEMBANGUNAN EKONOMI MASYARAKAT BERKELANJUTAN (STUDY KASUS LEMBAGA BAZNAS KABUPATEN JEMBER JAWA TIMUR)

Zakat merupakan bagian dari instrumen keuangan Islam yang memiliki salah satu fungsi untuk mengentaskan kemiskinan. Hal tersebut merupakan garis singgung yang paling signifikan terhadap tujuan pembangunan ekonomi masyakarat berkelanjutan (SDGs) yang merupakan bentuk komitmen global dalam memacu pertumbuhan ekonomi kearah lebih baik. Jenis penelitian ini merupakan penelitian deskriptif dari organisasi pengelolah zakat, akademisi, pemerintah dan praktisi. Teknik yang digunakan adalah teknik purposive sampling di mana objek kajian dalam penelitian ini adalah para pakar zakat yang ada di Kabupaten Jember. Adapun hasil penelitian ini menunjukkan bahwa prioritas pelaksanaan distribusi zakat dalam mendukung pembangunan ekonomi masyarakat berkelanjutan ialah aspek sosial dengan rater agrement W=0,36444. Pendapat responden dalam menemukan solusi prioritas bervariatif, yaitu W=0,3032. Adapun strategi dalam pembangunan ekonomi masyarakat berkelanjutan menunjukkan bahwa key person hampir semuanya sepakat (W= 0,4538). Ada empat strategi yaitu: 1) Meningkatkan kualitas dan kuantitas kepedulian lembaga sosial masyarakat dan stakeholder; 2) Meningkatkan pengurangan resiko bencana secara komprehensif dan efisien; 3) Meningkatkan kualitas penegak hukum yang berkeadilan, dan 4) Meningkatkan lapangan pekerjaan dan kepedulian terhadap UMKM masyarakat.
DISTRIBUTION CHARACTERISTICS OF PAHs IN ATMOSPHERIC PARTICLES IN DIFFERENT AREAS OF BEIJING DURING HEATING PERIOD

The polycyclic aromatic hydrocarbons (PAHs)in the fractionated aerosol particles were sampled and analyzed in two different areas of Beijing during heating period.Data showed toal PAHs concentration in total suspended particles (TSP)ranged from 74 86 to 436 87ng·m -3 in suburban area and from 119 93 to 397 86ng·m -3 in rural area,respectively.In suburban area,93% of total PAHs enriched in the particles with the diameter less than 7μm. In rural area the percentages were 92,respectively,in the same particle fraction.However,the distribution of PAH compounds with different ring tended to be uniform with the decrease in particle diameter.There were close relationships between BaP and ΣPAH in all studied size fractions( p 0 001).
Etherification of C5 -a nd C 8-alkenes with C1 -t o C 4-alcohols

Although etherification was of primary interest, the isomerisation of the alkenes was the main reaction to occur. For the primary alcohols the etherification and isomerisation rates correlated well with the properties of the alcohols. Both rates increased with decreasing polarity and with increasing carbon number, acidity and Mulliken charge of the oxygen atom of the alcohol. It is difficult to distinguish the effect of each property separately, and probably the differences in the reactivities are not due to any one property alone but rather the synergy of the properties affects the reactivities. The secondary alcohols behaved in a different way than the primary ones: the etherification was almost negligible. The effect of alcohol on the isomerisation of alkenes was notable even though alcohol does not directly react in the reaction, which was concluded to be due to the stronger adsorption of the more polar alcohols which hinders the reactions of other components.
CO2 Permeation through Hybrid Organosilica Membranes in the Presence of Water Vapor

Hybrid organosilica membranes have become attractive for industrial applications because of high performance and long-term stability. This work investigated the influence of water vapor on CO2 gas permeation through the hybrid membranes. Two types of organoalkoxysilanes, bis(triethoxysilyl)ethane (BTESE) and bis(triethoxysilyl)octane (BTESO), were used as precursors to prepare membranes via the sol–gel method. The two membranes showed distinct properties of porosity and water affinity because of the differences in the bridging methylene numbers between the two Si atoms. Under dry conditions, the BTESE and BTESO membranes showed CO2 permeances as high as 7.66 × 10–7 and 6.63 × 10–7 mol m–2 s–1 Pa–1 with CO2/N2 selectivities of 36.1 and 12.6 at 40 °C, respectively. In the presence of water vapor, CO2 permeance was decreased for both membranes, but the effect of water vapor on CO2 permeation was slighter for BTESO membranes than it was for BTESE membranes because of more hydrophobicity and denser structures .