Miracle-dz/UniFAR-FTUs huggingface dataset:
The Differences in Social Comparison of Adolescent Girls During the COVID-19 Pandemic in Terms of the Duration of Instagram Social Media Use

Social comparison is the idea that individuals determine their own social and personal value based on how they compare themselves to others. Based on a survey conducted by Watson [16], it is known that during the COVID-19 pandemic, the duration of social media use which includes Instagram increased by 44%. Prolonged usage of Instagram can lead to social comparison behavior, especially among women who often compare themselves with others [6]. The purpose of this study is to determine whether there were differences in social comparisons among female adolescents during the COVID-19 pandemic in terms of the duration of Instagram use. This study involved 393 female adolescent participants aged 13 to 22 years who actively use Instagram, gathered using purposive sampling method. The results showed that there was no difference in social comparisons among girls during the COVID-19 pandemic in terms of the duration of Instagram use. However, after further data processing, it is known that one of the dimensions of social comparison, namely the ability dimension, has a significant difference, while the opinion dimension has the opposite result.
Hierarchy analysis of different cross-linkers used for the preparation of cross-linked cyclodextrin as drug nanocarriers

ABSTRACT This paper describes the hierarchical analysis performed on various cross-linking agents used for the preparation of cyclodextrin nanosponges, as a drug carrier for poorly soluble and unstable drugs. Prioritizing the right one is crucial for research considering the factors like time, cost materials, and simplicity of the process. A four-level hierarchy model was constructed for four different cross-linker types, namely, carbonyl, diisocyanate, anhydride, and epichlorohydrin based on different criteria and subcriteria involved in the preparation of cyclodextrin polymer. It applies the principle of pairwise comparison, priority vector generation, and synthesis. It restricts reprocessing due to inapplicable decisions. This methodology helped in prioritizing carbonyl cross-linkers with regard to simple and easy processing steps with minimum input materials and desirable physicochemical characteristics for nanosponges with the priority value of 32.4%. The cross-linker was prioritized with a minimum judgment error by consistency verification. This analysis helps minimize experiments, development process, and improved product quality of cross-linked cyclodextrin as a drug delivering carrier.
Discourse of sustainable development - a base of environmental education in serbia

Education in Serbia faces challenges of reforms and rapid adaptation to demands of global, developed environment, intensive changes in science, technology, economy, entrepreneurship and social relations in general, as well as to high standards and expectations. On the way to global integrations, education that wants to have a marker - sustainable incorporates principles of sustainable development in its base: the principle of reconcilability with nature, economic sustainability, social justice, cultural identity, global joint work. After all the reforms and wandering around, the school recognizes that environmental, sustainable education forms a new way and style of life with relationships organized among adults and children at school and outside the school in the local community. Finally, a sustainable vision of education reform in Serbia has been focused on creation of a system that will be able to get together and engage relevant factors and respond to their actual needs. The education system that wants to have an indicator of sustainability is decentralized, efficient, effective, qualitative, and transparent; it employs highly professional, reflective, creative and motivated teaching staff; it has been focused on learning and it is a standard-based; it offers a high-quality program, promotes the culture of evaluation, self-evaluation and development of the school; it fosters fairness, ethics, tolerance, constructive communications-it is able to meet special educational needs, it has included the perspective of the lifelong learning, and it has a support of educational technologies. In essence it is a reengineering of the human spirit by mental transformations inspired by the principles of ecology and ecological engineering that needs to be implemented through sustainable environmental education. This paper will analyze whether all the opportunities offered in Serbia by environmental education are used, and what the obstacles are that need to be overcome in terms of normative principles and reduction of the gap between what "is" and what "should be" when considering the discourse of sustainable development in Serbia.
Selection Consistency of GIC for Small-n-Large-p Sparse Logistic Regression Model.

We consider selection procedure for high-dimensional logistic regression problem which consists in choosing a subset of predictors which minimizes Generalized Information Criterion (GIC) over all subsets of variables of size not exceeding preset value kn which may depend on a sample size. Nonasymptotic bound on probability of erroneous selection is proved which yields a range for GIC penalty parameter for which the procedure is consistent under mild assumptions and thus generalizes results of [1] and [2]. Various modifications of the procedure are analyzed using numerical examples.
Unusual enhancements of B_{c2} and T_c in the restacked TaS_2 nanosheets

Recently we reported an enhanced superconductivity in restacked monolayer TaS_2 nanosheets compared with the bulk TaS2, pointing to the exotic physical properties of low dimensional systems. Here we tune the superconducting properties of this system with magnetic field along different directions, where a strong Pauli paramagnetic spin-splitting effects is found in this system. Importantly, an unusual enhancement as high as 3.8 times of the upper critical field B_{c2} is observed under the inclined external magnetic field. Moreover, with the vertical field fixed, we find that the superconducting transition temperature T_c can be enhanced by increasing the transverse field and forms a dome-shaped phase diagram. We argue that the restacked crystal structure without inversion center along with the strong spin-orbit coupling may play a key role for our observations. The present findings are significant in the viewpoint of fundamental physics and may also facilitate the applications of low-dimensional superconductors in the environment of high field.
KETERAMPILAN KOMUNIKASI INTERPERSONAL SISWA KELAS XI SMA NEGERI 1 MARGAASIH KABUPATEN BANDUNG

This study aims to determine the profile of students' interpersonal communication skills. As for the aspects taken in interpersonal communication are the aspects of openness, empathy, equality and a positive attitude. This research was conducted on the subject of students of class XI as many as 156 students. In this study using quantitative descriptive methods with techniques data collection through interpersonal communication questionnaires. The scale used is linkert scale which contains statements of indicators of several aspects of interpersonal communication. The results obtained show that students with low interpersonal communication categories are 12%, moderate interpersonal communication categories are 66% and high interpersonal categories are 22%, thus it can be concluded that students who have low interpersonal communication need group guidance services to develop their competence. can live the life to comeKeywords: : Interpersonal communication, group guidance services
Detection and characterization of biogenic selenium nanoparticles in selenium-rich yeast by single particle ICPMS

A method based on single particle inductively coupled plasma mass spectrometry (SP-ICPMS) was developed for the analysis of commercial Se-rich yeasts, to confirm the occurrence of selenium nanoparticles in these food supplements. A considerable reduction of background levels was achieved by combining data acquisition at microsecond dwell times and the use of a H2 reaction cell, improving by a factor of 10 the current state-of-the-art methodology, and bringing size detection limits down to 18 nm for selenium nanoparticles. The presence of nanoparticulate selenium was revealed by size-exclusion chromatography ICPMS, with detection of a selenium peak at the exclusion volume of the column showing absorption at a wavelength corresponding to selenium nanoparticles. SP-ICPMS allowed us to confirm the presence of Se-nanoparticles, as well as to calculate the nanoparticle size distribution, from information about the shape and elemental composition of the nanoparticles obtained by transmission electron microscopy (TEM) and energy dispersive X-ray spectroscopy (EDS), respectively. These results reveal the significance of nanoparticles in the speciation of metals and metalloids in biological samples and the capability of SP-ICPMS in combination with TEM-EDS to carry out these analyses.
Correlation of Photophysical Properties with the Photoacoustic Emission for a Selection of Established Chromophores

An archetypal study is presented to correlate both the optical and the photoacoustic (PA) properties for a diverse selection of dyes whose structural properties range across organic and inorganic, symmetric and asymmetric, and neutral and cationic systems. Three distinct classes of molecular PA contrast agents have been identified and classified according to their optical-PA response as either (i) linear absorbers linear PA emitter, (ii) saturable absorbers weak PA emitter, or (iii) reverse saturable absorbers nonlinear PA emitter. The molecular characteristics instrumental in determining the nature of the dyes optical absorption properties, i.e., ground state molar extinction coefficient (eg), excited state molar extinction coefficient (ee), and excited state lifetime (τ), are discussed to aid in the interpretation of a molecule’s optical vs PA response. An excellent linear PA emitter is established in crystal violet, which exhibits the strongest possible PA signal under low laser fluence conditions in b.
STABILITY INDICATING REVERSE-PHASE HIGH- PERFORMANCE LIQUID CHROMATOGRAPHY METHOD DEVELOPMENT AND VALIDATION FOR SIMULTANEOUS ESTIMATION OF TELMISARTAN AND BENIDIPINE HYDROCHLORIDE IN PHARMACEUTICAL DOSAGE FORM

Objective: Development and validation of stability indicating reverse-phase high- performance liquid chromatography (RP-HPLC) method for simultaneous estimation of telmisartan (TEL) and benidipine hydrochloride (BND) in pharmaceutical dosage form. Methods: Reverse phase chromatography was selected because of its suggested use for ionic and moderate to non-polar compounds. Reverse phase chromatography is simple, suitable, better regarding efficiency, stability, and reproducibility. C18 column, a 250×4.6 mm column of 5.0 μm particle packing, was selected for separation of TEL and BND. Different solvent systems were tried and optimized in combinations as mobile phase. TEL (40 μg/ml) and BND (4 μg/ml) in buffer, pH 4.0: Methanol (50:50) was developed as it was showing good peak shapes and a significant amount of resolution. The mobile phase was flowed at 1.0 ml/min with detection of both the analytes at 210 nm using photodiode array detector. Result: Development of method was done, and validation was accomplished using specificity, linearity, accuracy, precision, robustness, limit of detection, and limit of quantitation. The method was found linear from 20 to 60 μg/ml and 2–6 μg/ml for TEL and BND individually. The percentage recoveries of TEL 100.46% and BND100.08% were, respectively. Conclusion: This stability indicating RP-HPLC methods were developed by degradation of sample and compared with standard. The percentage relative standard deviation was also <2 % showing high degree of precision of the proposed method. The proposed method can be used for routine analysis of benidipine HCl and TEL in combined dosage form and quality control in bulk manufacturing.
Study of the transport of water in the nanopores of C–S–H by 1H NMR.

This thesis describes a series of 1H nuclear magnetic resonance (NMR) experiments to investigate connectivity of the the nanopores of the calcium-silicate-hydrates (C–S–H) in cement based materials. This is achieved by coupling 1H NMR relaxometry in one and two relaxation times dimensions and 1H NMR cryoporometry down to about -80C. In particular the thesis contains the first use in any system of coupled two dimensional relaxometry and low temperature cryoporometry. The cryoporometry has been validated on model porous silica glass (SiO2) materials with known pore sizes and then applied to C2S and C3S, in cement chemistry notation, otherwise known as alite and belite. The 1H NMR cryoporometry data was used to estimate the pore sizes in C2S. It was found that the T2 relaxation time depends on temperature in C2S and C3S, but not in porous glasses SIO2 and MCM-41. There are two possible explanations. It could be due to the interaction of water with the -OH groups on the pore surface. It is known, that water, or a monolayer of water becomes physisorbed on silanol groups. Silanol groups are present both at the silica glasses surfaces as well at the cement pores surfaces. However, there are no many studies available on the interaction of water-silanol groups and temperature dependency below 0C. The other explanation concerns hydrated calcium ions in cementitious materials not present in silica glasses. However, little is known about C–S–H surfaces. A two dimensional 1H NMR T2 − T2 exchange experiment was used to investigate the exchange of water between interlayer spaces, gel pores and capillary pores at temperatures of room temperature, -5C and -30C on cooling and again on warming in C3S. A 3- site exchange numerical model was written to solve the associated coupled differential magnetisation exchange equations. By comparing the model output and experimental data it was shown that water exchanges between interlayer spaces and gel pores and between interlayer spaces and capillary pores. However, there is no exchange from gel pores to capillary pores. A further set of room temperature experiments were carried out to investigate the change in the pore size distribution of C-S-H in white cement following desorption and resorption of water as a function of drying severity. Rearrangements of the nano porosity were seen dependant on the severity of the drying. There were both reversible and irreversible changes. However, the total pore volume remained constant within measurement error. Most interestingly for more severe drying relaxation of the pore size distribution was seen for several days following resorption of water. All the experimental work was carried out at the LafargeHolcim research laboratories in Lyon, France. The thesis also contains details of the adaptation necessary to carry out experiments described on a standard Maran Ultra 23.5 MHz NMR spectrometer.
Plant photodynamic stress : study of molecular and cellular mechanisms in plant and plant cells upon porphyrin treatment

Antimicrobial photodynamic treatment (APDT) has emerged as an alternative modality to strive against multidrug-resistant microorganisms. This method, based on the use of photosensitizers including porphyrins, has also shown substantial efficiency to kill plant pathogens. This led us to propose an APDT approach in the field of agriculture. During this thesis work, we were interested in the "green" side of this approach. Thus, we performed an in-depth study on two plant species: Arabidopsis thaliana and Lycopersicum esculentum (tomato) and on Tobacco Bright Yellow-2 suspension culture (TBY-2 cells) using anionic and cationic water-soluble porphyrins. We have shown that none of these porphyrins tested at high concentration (⩾ 80 μM) was cytotoxic on plantlets or suspension cells under dark conditions. On the other hand, the cationic porphyrins tested at low concentration (3.5 μM) were lethal for Arabidopsis while they only slowed the growth of tomato plantlets under 16 h photoperiod. Surprisingly, the same anionic porphyrins tested at high concentrations did not induce growth alterations of both plantlets. This situation is reversed in TBY-2 cells, which are much more sensitive to photoactivated anionic porphyrins that induce apoptosis-like cell death. TBY-2 cells allowed to understand i) the interactions of anionic porphyrins with the cell wall and ii) the induced cellular and molecular mechanisms in response to photodynamic stress. In conclusion, these preliminary studies on the plants and plant cells suggest the possibility of developing APDT in agriculture. It will be targeted to plant pathogens without any side effects on plants of agronomic interest and soil microorganisms.
Treatment of tumour tissue with radio‐frequency hyperthermia (using antibody‐carrying nanoparticles)

Abstract Intelligent inorganic nanoparticles were designed and produced for use in imaging and annihilating tumour cells by radio‐frequency (RF) hyperthermia. Nanoparticles synthesised to provide RF hyperthermia must have magnetite properties. For this purpose, magnetite nanoparticles were first synthesised by the coprecipitation method (10–15 NM). These superparamagnetic nanoparticles were then covered with gold ions without losing their magnetic properties. In this step, gold ions are reduced around the magnetite nanoparticles. Surface modification of the gold‐coated magnetic nanoparticles was performed in the next step. A self‐assembled monolayer was created using cysteamine (2‐aminoethanethiol) molecules, which have two different end groups (SH and NH2). These molecules react with the gold surface by SH groups. The NH2 groups give a positive charge to the nanoparticles. After that, a monoclonal antibody (Monoclonal Anti‐N‐CAM Clone NCAM‐OB11) was immobilised by the 1‐ethyl‐3‐(3‐dimethylaminopropyl)carbodiimide/N‐hydroxysuccinimide method. Then, the antenna RF system (144.00015 MHz) was created for RF hyperthermia. The antibody‐nanoparticle binding rate and cytotoxicity tests were followed by in vitro and in vivo experiments. As the main result, antibody‐bound gold‐coated magnetic nanoparticles were successfully connected to tumour cells. After RF hyperthermia, the tumour size decreased owing to apoptosis and necrosis of tumour cells.
PSO-SVM applied to SWASV studies for accurate detection of Cd(II) based on disposable electrode

Square wave anodic stripping voltammetry (SWASV) is an effective method for the detection of Cd(II), but the presence of Pb(II) usually has some potential and negative interference on the SWASV detection of Cd(II). In this paper, a novel method was proposed to predict the concentration of Cd(II) in the presence of Pb(II) based on the combination of chemically modified electrode (CME), machine learning algorithms (MLA) and SWASV. A Bi film/ionic liquid/screen- printed electrode (Bi/IL/SPE) was prepared and used for the sensitive detection of trace Cd(II). The parameters affecting the stripping currents were investigated and optimized. The morphologies and electrochemical properties of the modified electrode were characterized by scanning electron microscopy (SEM) and SWASV. The measured SWASV spectrograms obtained at different concentrations were used to build the mathematical models for the prediction of Cd(II), which taking the combined effect of Cd(II) and Pb(II) into consideration on the SWASV detection of Cd(II), and to establish a nonlinear relationship between the stripping currents of Pb(II) and Cd(II) and the concentration of Cd(II). The proposed mathematical models rely on an improved particle swarm optimization-support vector machine (PSO-SVM) to assess the concentration of Cd(II) in the presence of Pb(II) in a wide range of concentrations. The experimental results suggest that this method is suitable to fulfill the goal of Cd(II) detection in the presence of Pb(II) (correlation coefficient, mean absolute error and root mean square error were 0.998, 1.63 and 1.68, respectively). Finally, the proposed method was applied to predict the trace Cd(II) in soil samples with satisfactory results. Keywords: square wave anodic stripping voltammetry (SWASV), particle swarm, support vector machine, screen-printed electrode, heavy metals, Cd detection, soil pollution DOI: 10.25165/j.ijabe. 20171005.2863 Citation: Zhao G, Wang H, Yin Y, Liu G. PSO-SVM applied to SWASV studies for accurate detection of Cd(II) based on disposable electrode. Int J Agric & Biol Eng, 2017; 10(5): 251–261.
Electronic and magnetic properties of small fullerene carbon nanobuds: A DFT study

The electronic and magnetic properties of carbon nanobuds have been investigated using density functional theory. The carbon nanobuds are formed by attaching smaller fullerenes (C20, C28, C36 and C40) of variable size with (5, 5) ACNT and (5, 0) ZCNT. Fullerenes interact strongly with CNT surface having binding energies within the range −0.93 eV to −4.06 eV. The C–C bond lengths near the attachment region increase from the original C–C bond lengths. The relative stabilities of the nanobuds are closely related to C–C bond lengths and bond angles in cycloaddition reaction. Nanobuds formed by bond cycloaddition are energetically most favorable amongst all cycloadditions. The electronic and magnetic properties of nanobuds depend strongly on electronic properties of its building blocks. The attachment of C20 and C40 on CNTs open up the HOMO-LUMO gaps of nanobuds whereas C28 and C36 results in addition of impurity states near the Fermi level. The total magnetic moment of nanobuds vary from 0. 28μB to 4. 00μB which depend on the nature of bonding between fullerene and CNTs. The results outline the potential of nanobuds as hybrid carbon nanostructures and how their properties can be tuned with the size and type of fullerene attached.
One-step synthesis of the superhydrophobic zeolitic imidazolate framework F-ZIF-90 for efficient removal of oil

A one-step synthesis strategy is developed to prepare a novel superhydrophobic zeolitic imidazolate framework F-ZIF-90 by using a fluorine-functionalized imidazolate as an organic linker. The F-ZIF-90 shows high water-stability and superhydrophobicity, thus it is very promising for oil removal. Through in situ growth of F-ZIF-90 on a polydopamine (PDA) modified sponge, the resulting F-ZIF-90@PDA@sponge composite shows high adsorption capacities for various oils and organic liquids ranging from 1600 wt% to 4800 wt%.
Development of passion fruit juice beverage

In this experiment, the whole fruit of passion fruit was used as raw material. The effects of the ratio of material to liquid (RML), the amount of sucrose addition and the pH on the quality of passion fruit juice beverage were investigated by single factor test. And the optimum process conditions of passion fruit juice beverage were determined by orthogonal test. The results show that the optimum process paramenters were as follow: RML was 1:3, pH was 4.0 and sucrose addition was 8%. Under such optimal conditions, the color of passion fruit juice beverage was red, the flavor of passion fruit was rich and it tasted pleasant.