Miracle-dz/UniFAR-FTUs huggingface dataset:
Revisiting Transport of Gases in the Micropores of Carbon Molecular Sieves

Single component differential uptake of oxygen and nitrogen in three samples of carbon molecular sieve adsorbent and carbon dioxide and methane in one of the samples has been measured volumetrically at different temperatures over a wide range of adsorbent loading. The results seem to suggest that the early part of the uptake is controlled by a barrier resistance confined at the micropore mouth while the later part is controlled by a pore diffusional resistance distributed in the micropore interior. A dual resistance model is able to capture the observed single component uptake behavior for all the four gases, which is assuredly less tentative than what the current literature may suggest. Moreover, the extracted micropore transport parameters have much stronger dependence on adsorbent loading than that expected from chemical potential gradient as the driving force for diffusion and the assumption of a constant limiting transport coefficient based on prevailing evidence. An approximate way of accounting for.
Prostaglandin F2? as ovulatory stimulus in dairy cows and buffaloes raised in the Amazon biome

This study evaluated the effect of a prostaglandin F2? (PGF) analogue as an ovulatory stimulus in dairy cows and buffaloes raised in the Amazon biome. To this end, three experiments were performed in the state of Rondônia, located in the Amazon biome. In Experiment 1, 22 lactating dairy buffaloes received 2 mg of intramuscular (I.M.) estradiol benzoate (EB) on day 0 and an intravaginal progesterone-releasing device (CIDR) from day 0 to day 9 of the protocol. On days 8 and 9, all cows were given 500 ? g of I.M. d-cloprostenol (PGF analogue). On day 10, buffaloes were divided into two groups to receive 500 ? g of PGF (PGF group, n = 8) or no treatment (CTL group, n = 14), respectively. In Experiment 2, 16 lactating crossbred dairy cows (Holstein x Gir) received 2 mg of EB on day 0 and a CIDR insert from day 0 to day 8. On days 7 and 8, all cows were given 500 ? g of d-cloprostenol. On day 9, cows were divided into two groups to receive 500 ? g of d-cloprostenol (PGF group, n = 8) or no treatment (CTL group, n = 8), respectively. In Experiment 3, 16 lactating crossbred dairy cows (Holstein x Gir) were handled and treated similarly as in Experiment 2, although cows did not receive d-cloprostenol on day 8. Single-point outcome variables were analyzed using one-way analysis of variance (ANOVA), while proportions with dichotomous outcomes were analyzed with the chi-square test. In Experiment 1, there was no difference (P = 0.30) in the ovulation rate between groups, and, on average, 68% of the buffaloes ovulated. Moreover, the treatment did not affect the interval to ovulation (P = 0.61) nor the diameter of the preovulatory follicle (P = 0.47). As for Experiment 2, only one cow, from the PG group, did not ovulate. There were no differences between the CTL and PG groups (P = 0.69) in the moment of ovulation, which occurred in average 82 h after CIDR removal. Finally, in Experiment 3, cows treated with PGF ovulated earlier than those in the CTL group (62.5 ± 5.8 and 94.5 ± 13.5 h, respectively; P = 0.05). Collectively, these results suggest that PGF hastens ovulation in lactating dairy cows, whereas no effect was observed in dairy buffaloes.
Detection of mycobacteria in coalho cheese sold in Northeastern Brazil

The aim of the present study was to detect and identify Mycobaterium spp. in 50 samples of coalho cheese sold in the Northeast region of Brazil. Of the 50 analyzed samples, 35 were produced by the artisanal process, using raw milk, and 15 originated from industrialized establishments that pasteurize milk. Conventional and real-time nested PCR for the rv2807 gene of the M. tuberculosis complex was performed directly from the 50 analyzed samples. Samples of coalho cheese were grown simultaneously in Stonebrink medium, and conventional PCR was performed from the bacterial isolates with primers that flank differentiation region 4 (DR4), specific to M. bovis, mb400F. Bacterial isolates negative by PCR for RD4 were subjected to PCR for hsp65 of Mycobacterium spp. , with subsequent DNA sequencing. The cultures were negative for the M. tuberculosis complex, but two samples (4%) from the artisanal process (with raw milk) exhibited identity with hsp65 of Mycobacterium lehmanii (Sequence ID: KY933786.1, identities: 312/363 [86%]); and Mycobacterium rutilum (sequence ID: LT629971.1, identities: 331/371 [89%]), showing to be indicative environmental contamination. Non-tuberculous mycobacteria are emergent and ubiquitous microorganisms; therefore, they deserve greater attention in the cheese production chain, both in terms of Good Agricultural Practices (GAP) and food Good Manufacturing Practices (GMP).
RISK FACTORS OF LATENT TUBERCULOSIS INFECTION IN HEALTHCARE WORKERS AT HOSPITALS IN JEMBER CITY INDONESIA

Background: Healthcare workers in Tuberculosis (TB) and non-TB units in hospitals have a high risk of experiencing Latent Tuberculosis Infection (LTBI), because of exposure to droplets containing Mycobacterium tuberculosis. This study aims to prove LTBI incidence and risk factors to healthcare workers at the hospital in Jember City. Material and Methods: a cross-sectional study, from January to March 2020 in two hospitals in Jember City. Healthcare workers in the TB care and non-TB care unit were examined using Tuberculin skin test (TST) with a cut off ≥ 10 mm for positive LTBI. Chest x-ray and clinical examination to rule out active TB and a standardized questionnaire were also used. Results: 128 healthcare workers completed the questionnaires, clinical, tuberculin skin test (TST), and chest x-ray data. LTBI incidence of positive results 61.7% (n = 79). Contacts TB in the workplace (p value = 0.219; OR = 1.643; CI = 0.742-3.641) and a unit of work (p value = 0.102; OR = 0.760; CI = 0.559-1.031) has no relationship with LTBI. The profession (p value = 0.020; OR = 1.112; CI = 0.896-1.403), the duration of the work (p value = 0.039; OR = 2.984; CI = 1.067-8.342), and BCG immunization (p value =0.000; OR = 0.151; CI = 0.052-0.438) have important relationships with LTBI. Conclusion: TB infection with a high incidence, a risk of transmission to healthcare workers, and a relationship between occupational risk factors and LTBI among healthcare workers in Jember City, Indonesia have been established in this study.
CFD Simulation of Gas-Liquid Flows in a Reactor Stirred by Dual Rushton Turbines

In the present work, we have simulated gas-liquid flows in a tall stirred reactor equipped with dual Rushton turbines. A two fluid model along with the standard k-? turbulence model and modified drag coefficient, (proposed by Khopkar & Ranade, 2006) accounting for the effect of bulk turbulence, was used to simulate the dispersed gas-liquid flow in a stirred reactor. The multiple reference frames (MRF) approach was used to simulate impeller rotation in a fully baffled reactor. The computational model was mapped on to a commercial solver FLUENT 6.2 (of Fluent Inc. USA). The model was used to simulate three distinct flow regimes in a gas-liquid stirred reactor: L33-VC (lower impeller-upper impeller), S33-VC and VC-VC. The model predictions were compared with the published experimental data of Bombac & Zun (2000). The predicted results show good agreement with the experimental data for all the three flow regimes. The computational model presented in this work would be useful for simulating different flow regimes in a gas-liquid stirred vessel.
A highly sensitive enzyme-linked immunosorbent assay for the detection of dipropyl phthalate in plastic food contact materials

Abstract A highly sensitive and specific direct competitive enzyme-linked immunosorbent assay has been developed for the detection of dipropyl phthalate (DPrP) based on antibody-coating format. The specific polyclonal antibodies against DPrP raised in rabbits. The conjugates of the antigen with horseradish peroxidase (HRP) were used as the detectable probe. Under the optimal conditions, the limit of detection of the method was 0.01 ng/mL, and a good quantitative working range of 0.01–16 ng/mL (R 2=0.995) was obtained. The cross-reactivities of four structurally related phthalate esters were below 12% and did not interfere significantly the analysis of DPrP. The accuracy of the immunoassay has been evaluated and validated by analyzing real and spiked leachate from plastic food contact materials. The recoveries of DPrP ranged from 85.9% to 109.4%. This developed dc-ELISA was reliable, accurate and highly sensitive.
A precise and automatic very large scale integrated circuit pattern linewidth measurement method using a scanning electron microscope

This paper deals with an automatic linewidth measurement method of photoresist pattern linewidths with high accuracy, which we call ‘‘the linear regression method. ’’ In the linear regression method, the secondary electron intensity profile at the photoresist pattern edge is approximated by two lines. One is the average line of the secondary electron intensity profile on the substrate and another is the slope line corresponding to the slope of the photoresist edge. The cross point of the two lines is defined as the pattern edge. The linewidths obtained by this method agree with the linewidths obtained by the cross sectional SEM images which are defined as true values, within 0.009 μm for various photoresist slope angles and within 0.002 μm for variation of the underlying materials. A practical pattern linewidth measuring apparatus which employs a high speed measurement time of 2.34 s is also described.
Critical creativity: managing creativity as a strategic resource in media organisations

ABSTRACT This article addresses the critical role of creativity as a core resource in media work. Drawing on an empirical analysis, the study produces a new understanding about the significance of creativity in media organisations and their management. It identifies three critical aspects of creativity, i.e. co-operation willingness, experimental atmosphere and supportive practices, and discusses three corresponding managerial focus areas. Thus, this article offers both theoretical contributions in relation to critical creativity in media work and practical implications for managing creativity as a strategic resource in media organisations.
Growth response of calcifying marine epibionts to biogenic pH fluctuations and global ocean acidification scenarios

In coastal marine environments, physical and biological forces can cause dynamic pH fluctuations from microscale (diffusive boundary layer [DBL]) up to ecosystem‐scale (benthic boundary layer [BBL]). In the face of ocean acidification (OA), such natural pH variations may modulate an organism's response to OA by providing temporal refugia. We investigated the effect of pH fluctuations, generated by the brown alga Fucus serratus' biological activity, on the calcifying epibionts Balanus improvisus and Electra pilosa under OA. For this, both epibionts were grown on inactive and biologically active surfaces and exposed to (1) constant pH scenarios under ambient (pH 8.1) or OA conditions (pH 7.7), or (2) oscillating pH scenarios mimicking BBL conditions at ambient (pH 7.7–8.6) or OA scenarios (pH 7.4–8.2). Furthermore, all treatment combinations were tested at 10°C and 15°C. Against our expectations, OA treatments did not affect epibiont growth under constant or fluctuating (BBL) pH conditions, indicating rather high robustness against predicted OA scenarios. Furthermore, epibiont growth was hampered and not fostered on active surfaces (fluctuating DBL conditions), indicating that fluctuating pH conditions of the DBL with elevated daytime pH do not necessarily provide temporal refugia from OA. In contrast, results indicate that factors other than pH may play larger roles for epibiont growth on macrophytes (e.g., surface characteristics, macrophyte antifouling defense, or dynamics of oxygen and nutrient concentrations). Warming enhanced epibiont growth rates significantly, independently of OA, indicating no synergistic effects of pH treatments and temperature within their natural temperature range.
A kinetic study of the autocatalytic permanganate oxidation of formic acid

The kinetics of the permanganate oxidation of formic acid in aqueous perchloric acid has been studied. The results indicate that this reaction is autocatalyzed by both manganese(II) ion (formed as a reaction product) and colloidal manganese dioxide (formed as an intermediate). The apparent rate constants corresponding to the noncatalytic and autocatalytic reaction pathways are given, respectively, by the following equations The activation energies associated with the true rate constants, , , , , , and are 37.2, 62.5, 70.9, 52.5, 40.8, and 59.9 kJ mol−1, respectively. The percentage of the total reaction corresponding to each pathway is given for typical experimental conditions. Mechanisms in agreement with the kinetic data are proposed for the six different reaction pathways observed.
Reaktionen mit phosphororganischen Verbindungen. XLI[1]. Neuartige synthetische Aspekte des Systems Triphenylphosphin‐Azodicarbonsäureester‐Hydroxyverbindung

New preparative methods using triphenylphosphine-diethyl-azodicarboxylate-hydroxycompound. The present paper deals with new preparative methods by which the system of triphenylphosphine-diethylazodicarboxylate-hydroxycompound is treated with many nucleophiles. On one side, the transformation of 5α-cholestane-3β-ol to the 3α-substituted derivatives 2a-2e (Scheme 1) by hitherto unregarded nucleophiles like azide, cyanide, thiocyanate, trifluoroacetate and thiophenoxide is shown. Further examples demonstrate the great applicability of the reaction in the case of sensitive substrates. Cholesterol (5) is transformed to the 3α-derivative 6a without any neighbouring group participation by the Δ5-double bond. The analogous transformation of the hydroxysteroides 7 and 9 to the corresponding 3α-substituted compounds 8a and 10a represent further examples to be noted. Noteworthy is also the formation of the epi-vitamine D3-p-nitrobenzoate from the vitamin-D3 itself. On the other side the sources for nucleophils require special consideration. Scheme 1 demonstarates that the anions of phosphonium salts can be used as the nucleophils as is shown by the preparation of the derivatives 2a, 2c, 2f, 2h and 2i from 5α-cholestane-3β-ol (1). From scheme 2 one can see the very useful preparative fact (12f, 2g, 2h, 21 and 2m) that alkylhalides, alkylsulfates and alkylsulfonates can be used for supplying of the corresponding nucleophile. The possibility of a direct tosylation of a chiral hydroxycompound with inversion of configuration-as it is shown by transformation of (S)-2-butanol to the tosylate, obtained also from (R)-2-butanol and tosylchloride is a further is a further remarkable point. The absence of neighbouring group effects allows also to prepare cis-1, 2- disubstituted cyclohexane compounds type C6H10 (X) (Y) (X = N3, Cl, Y = N3, J) from the corresponding trans-1,2-disubstituted cyclohexanoles C6H10 (X) (OH) (X = N3, Cl). The synthesis of the compounds 14a-15d can be regarded as representative of this new useful methodic principle.
Reynolds number scaling of the peak turbulence intensity in wall flows

Abstract The celebrated wall-scaling works for many statistical averages in turbulent flows near smooth walls, but the streamwise velocity fluctuation, $u^{\prime }$, is thought to be among the few exceptions. In particular, the near-wall mean-square peak, $\overline {u'u'}^+_p$ – where the superscript $+$ indicates normalization by the friction velocity $u_\tau$, the subscript $p$ indicates the peak value and the overbar indicates time averaging – is known to increase with increasing Reynolds number. The existing explanations suggest a logarithmic growth with respect to $Re$, where $Re$ is the Reynolds number based on $u_\tau$ and the thickness of the wall flow. We show that this boundless growth calls into question the veracity of wall-scaling and so cannot be sustained, and we establish an alternative formula for the peak magnitude that approaches a finite limit $\overline {u'u'}^+_\infty$ owing to the natural constraint of boundedness on the dissipation rate at the wall. This new formula agrees well with the existing data and, in contrast to the logarithmic growth, supports the classical wall-scaling for turbulent intensity at asymptotically high Reynolds numbers.
A visual report on what is of value for people with intellectual disabilities in a Flemish care organisation

ABSTRACT Background: This paper presents the findings from a qualitative research project that explored what ten people with intellectual disabilities who receive care and support in a residential care facility deem valuable for living a good life and what the opportunity to manage resources for care and support themselves means to them. Method: With the use of photovoice, the 10 participants documented their care and support, and by extension, their own lives. We describe how the project was carried out and the facilitating and obstructing factors we encountered. Results: The collected images and related personal stories teach us about the central importance of significant others to the lives of the participants and their vital role as “necessary others” who nurture a multitude of possibilities. Conclusions: The increasing policy focus on independence and self-sufficiency is opposed to the vital role of relationships in the participants' view of a good life.
ONLINE ADOLESCENT'S SELF-DISCLOSURE AS SOCIAL MEDIA USERS: THE ROLE OF EXTRAVERSION PERSONALITY, PERCEPTION OF PRIVACY RISK, CONVENIENCE OF RELATIONSHIP MAINTENANCE, AND SELF-PRESENTATION

Adolescences' excessive online self-disclosure is now a social phenomenon arising in social media use. The adolescences also tend to share their privacy. This study aims to determine whether extraversion personality, perceived privacy risks, the convenience of maintaining relationships, and online self-presentation influence self-disclosure in adolescents. This study involved 619 adolescents (185 male and 434 female) aged 13-22 years (M = 19.39, SD = 1.83). The participants are active social media users collected from several areas in Indonesia. Multiple regression analysis is used to test the hypothesis. The results show that several variables simultaneously affect online self-disclosure in adolescents (R2 = .422; F (4, 614) = 111.944, p < . 01). However, in details, online self-presentation does not have a significant effect on online self-disclosure among adolescents. This result shows that personality factors and adolescent perceptions of the low privacy risk on social media, as well as the goal of maintaining social relations with other members of social media, encourage them to be more online disclose on social media.
Native isolates and the effect of aviary litter on the pathogenicity and virulence of entomopathogenic nematodes for the control of the lesser mealworm, Alphitobius diaperinus (Panzer) (Coleoptera: Tenebrionidae)

Objetivou-se selecionar isolados nativos de nematoides entomopatogênicos (NEPs) e avaliar o efeito da cama de aviário na sua patogenicidade e virulência, visando o controle do cascudinho de aviário. Foram utilizados 18 isolados (Steinernema e Heterorhabditis) no teste de seleção e os três isolados mais virulentos foram utilizados no teste de concentrações (10, 20, 40, 50 juvenis infectantes (JIs)/cm²). O efeito da cama de aviário (nova e velha) foi avaliado sobre S. feltiae (IBCB-n 47), S. carpocapse (IBCB-n 02), H. bacteriophora e H. amazonensis (UEL 08). Os experimentos foram realizados em delineamento inteiramente casualizado. Os dados do teste de seleção e efeito da cama foram submetidos ao teste de médias Scott-Knott (P? 0,05) e, do teste de concentrações à análise de regressão. Observou-se no teste de seleção para adultos, que os três isolados mais virulentos foram Heterorhabditis amazonensis (UEL 07), H. amazonensis (RSC 05) e Steinernema carpocapsae (IBCB-n 02) com 76,5; 73,5; 70% mortalidade respectivamente. Para larvas, Heterorhabditis sp. (NEPETT 11), S. feltiae (IBCB-n 47), H. amazonensis. (UEL 07) foram os mais virulentos e causaram 100; 96; 93,7% de mortalidade respectivamente. No teste de concentrações, a maior mortalidade em adultos (98%) e larvas (98%) foi observada para S. feltiae nas concentrações de 30 JIs/cm² e 50JIs/cm² respectivamente. Com relação ao efeito da cama de aviário, observou-se que S. feltiae (IBCB-n 47) e S. carpocapse (IBCB-n 02) causaram as maiores mortalidade tanto em cama nova (60,7 e 58,7%) quanto em cama velha (80 e 74,7%) respectivamente.
Mathematical Programming Approach for Adversarial Attack Modelling

An adversarial attack is defined as the minimal perturbation that change the model decision. Machine learning (ML) models such as Deep Neural Networks (DNNs) are vulnerable to different adversarial examples where malicious perturbed inputs lead to erroneous model outputs. Breaking neural networks with adversarial attack requires an intelligent approach that decides about the maximum allowed margin in which the neural network decision (output) is invariant. In this paper, we propose a new formulation based on linear programming approach modelling adversarial attacks. Our approach considers noised inputs while reaching the optimal perturbation. To assess the performance of our approach, we discuss two main scenarios quantifying the algorithm’s decision behavior in terms of total perturbation cost, percentage of perturbed inputs, and other cost factors. Then, the approach is implemented and evaluated under different neural network scales.
A Differential Game with Random Time Horizon and Discontinuous Distribution

One class of differential games with random duration is considered. It is assumed that the duration of the game is a random variable with values from a given finite interval. The cumulative distribution function (CDF) of this random variable is assumed to be discontinuous with two jumps on the interval. It follows that the player’s payoff takes the form of the sum of integrals with different but adjoint time intervals. In addition, the first interval corresponds to the zero probability of the game to be finished, which results in terminal payoff on this interval. The method of construction optimal solution for the cooperative scenario of such games is proposed. The results are illustrated by the example of differential game of investment in the public stock of knowledge.
Columnar vortices induced by dielectrophoretic force in a stationary cylindrical annulus filled with a dielectric liquid

Abstract The dynamics of flow of a dielectric fluid in a vertical cylindrical annulus with a fixed temperature difference and an increasing alternating electric tension has been investigated using a direct numerical simulation (DNS). The temperature difference imposed on the cylindrical surfaces induces a radial temperature gradient perpendicular to the ground gravity which generates a baroclinic flow ascending near the hot surface and descending near the cold one. The electric field coupled with the permittivity gradient generates a dielectrophoretic buoyancy force which is a source of vorticity. Above a critical value of the electric tension, the flow bifurcates to a pattern of stationary columnar vortices. These columnar vortices which characterize the thermoelectric convection are not axially invariant, in contrast with classical Taylor columns. They bifurcate to regular wave patterns and then to spatio-temporal chaotic patterns when the electric field intensity is increased. The flow and temperature fields, the kinetic energy and the enstrophy of thermoelectric convective regimes are computed for different values of the electric tension.