Miracle-dz/UniFAR-FTUs huggingface dataset:
Effect of Cu2O Content in Electrodeposited CuOx Film on Perovskite Solar Cells

It is well known that the different proportions of CuO and Cu2O in CuOx hole transfer materials have a great influence on the hole transport property as well as the device performances of perovskite solar cells (PSCs). In this paper, we changed the content of Cu2O in the film by controlling the deposition voltage during electrodeposition, and the effects of different contents of Cu2O in the films on the device were investigated for the first time. It was found that the content of Cu2O in the film reached the highest point with the deposition voltage 0.5[Formula: see text]V, such films have the highest transmittance and carrier mobility. After assembling the device, the power conversion efficiency (PCE) of the champion device reached 13.48% under a one-sun AM 1.5[Formula: see text]G (100[Formula: see text]mW/cm[Formula: see text] illumination. Furthermore, the unpackaged device based on CuOx still retained over 75% PCE after being placed in the ambient condition (30–40% humidity, 20–30[Formula: see text] for 500[Formula: see text]h.
Optimization of alginate alkaline extraction technology from Sargassum polycystum and its antioxidant properties

The quality of alginate may differ considerably depending on several aspects. The aims of this research were to identify, characterize the alginate, examine the quality and determine the antioxidant properties. Identification was done phenotypically. Characterization was done by FT-IR spectroscopy by comparing the samples to standard alginate (Sigma, USA). The extraction was done in two treatments: soaked with 5 % NaOCl, extraction of Na2CO3 (3.0; 5.0; 7.0 and 9.0 %)/EDTA, KCl and precipitated with ethanol (T1) and dried. T2 was pretreated with KOH, HCl, boiled by Na2CO3 (3.0; 5.0; 7.0 and 9.0 %), depigmented, HCl and NaOH addition precipitated with ethanol absolute and then sundried. Antioxidant properties test were done by DPPH and NBT radical scavenging assays. Phenotypic identification showed that the species was Sargassum polycystum. There were similarities in signal vibration between the samples and the standard. The highest yield was produced from 7.0 % Na2CO3, while the average yield of T1 (37.56 %) was significantly higher (P ≤ 0.05) than T2 (21.77 %). The level of dynamic viscosity was correlated with alkali concentration. Indication in T1 results showed that the higher alkali concentration, the better yield. The best yield was the lowest viscosity, produced the strongest antioxidant activity.
EFFECTS OF BLACK TEA EXTRACT AND ITS THEARUBIGINS ON WHOLE GUT TRANSIT TIME IN MICE: INVOLVEMENT OF 5-HT3 RECEPTORS

Tea is the most popular beverage in the world. In the recent decades therapeutic effects of various type of tea drinking has been revealed in many studies. The purpose of this study was to evaluate the effects of the black tea extract (BTE) and its major polyphenolic pigments thearubigins (TRs) on whole gut transit time in mice by use of carmine marker. BTE of Iranian tea was prepared and its polyphenolic pigment TRs extracted by Liquid- liquid partition method. BTE (1.5%, 3%, 4.5%, 6%, and 10%) and extracted TRs (30 mg/kg, 40mg/kg, 50mg/kg, 60 mg/kg, 70mg/kg, and 100mg/kg) were gavaged to the fasted mice to measuring the whole gut transit time. Results showed BTE (3%, 4.5%, 6 %,) and TRs (40mg/kg, 50mg/kg, 60 mg/kg, 70mg/kg) significantly decreased the whole gut transit time dose dependant manner. For determination of serotonergic system involvement as a major neurotransmitter system in transit time alteration caused by BTE and TRs, ondansetron (3mg/kg, i.p) was used. Acquired data showed that 5-HT3 antagonist blocked accelerating effects of BTE and TRs. Based on the results BTE and TRs could be regarded as gut accelerator movement dose dependant manner. Moreover, it was concluded that these effects at least partially involved with serotonergic system via 5-HT3 receptors.
Dendritic growth and spread of Electrochemical Research in India

Electrochemistry Research has undergone a rapid growth in India during the last decade due to several reasons. Ambitious renewable energy targets with implicit need for storage systems, More focused attention on Electric Mobility due to climate related commitments, enhanced public interest in environmental remediation and effluent treatments, expanding research-infrastructure in many IISERs, new IITs, NITs and other private and public universities, availability of diverse types of size and shape selective materials and many other such reasons are responsible. Several laboratories are doing well in developing new materials for applications in batteries, biosensors, fuel cells etc., despite barriers for industrial deployment. This article examines the status of research in electrochemistry and contiguous areas providing a cursory glance of some of the recent excitements.
Use of erythrocytes in cytotoxicity and toxicity assays of medicinal plant extracts: analysis of their application and bibliometric study

Plant species have been used for therapeutic purposes since ancient times and are still in use today since these products represent a source of raw material for the production of phytotherapeutic formulations. Screening and investigation of plants with pharmacological potential require the evaluation of characteristics related to their action, efficacy and safety in different steps. Among these steps, preclinical trials are used to evaluate the properties of the test product in in vitro experiments, such as cytotoxicity assays. Within this context, this study consists of a bibliometric analysis of some in vitro cytotoxicity and toxicity assays in erythrocytes used during bioprospecting of medicinal plants. The results demonstrated the wide application of erythrocytes to evaluate the biological effects of medicinal plant extracts. The methods were found to be valid and effective for the preliminary investigation of the in vitro cytotoxicity and toxicity of plant products.
The importance of decontamination in hospitals and healthcare

Abstract: Decontamination and disinfection are important in hospitals to control healthcare-acquired infections (HAI). Historically, Alexander Gordon, Ignaz Semmelweis and Florence Nightingale recognised the importance of hand washing and cleanliness. Meticillin resistant Staphylococcus aureus (MRSA) and Clostridium difficile cause thousands of fatalities per year but recent Department of Health (England) programmes in the last decade have reduced HAI rates. The emergence of variant Creutzfeldt–Jacob Disease (vCJD) prompted a reappraisal of the treatment of surgical instruments in contact with high risk tissues to prevent further human to human transmission. Prions demonstrate that there are still major challenges in the world of disinfection and decontamination and as healthcare professionals it is our duty to remain vigilant against future disease threats.
Validation of the Fokker–Planck Approach to Vibrational Kinetics in CO2 Plasma

The Fokker–Planck (FP) approach to describe vibrational kinetics numerically is validated in this work. This approach is shown to be around 1000 times faster than the usual state-to-state (STS) method to calculate a vibrational distribution function (VDF) in stationary conditions. Weakly ionized, nonequilibrium CO2 plasma is the test case for this demonstration, in view of its importance for the production of carbon-neutral fuels. VDFs obtained through the resolution of an FP equation and through the usual STS approach are compared in the same conditions, considering the same kinetic data. The demonstration is shown for chemical networks of increasing generality in vibrational kinetics of polyatomic molecules, including V–V exchanges, V–T relaxation, intermode V–V′ reactions, and excitation through e–V collisions. The FP method is shown to be accurate to describe the vibrational kinetics of the CO2 asymmetric stretching mode, while being much faster than the STS approach. In this way, the quantitative val.
Associations among food insecurity, dietary sodium and potassium intake levels, and hypertension: a cross-sectional study based on NHANES 2007-2010 data

Title of Thesis: ASSOCIATIONS AMONG FOOD INSECURITY, DIETARY SODIUM AND POTASSIUM INTAKE LEVELS, AND HYPERTENSION: A CROSS-SECTIONAL STUDY BASED ON NHANES 2007-2010 DATA Ann Nothwehr, Master of Public Health, 2014 Thesis directed by: Associate Professor Olivia Carter-Pokras Department of Epidemiology and Biostatistics Background: Food insecure persons may have diet patterns that include excessive sodium and inadequate potassium. These patterns contribute to greater risks of hypertension. Objective: Evaluate levels of association among food insecurity, dietary sodium and potassium intake levels and hypertension among NHANES 2007-2010 adult participants. Methods: Compared mean usual sodium and potassium intakes and mean usual sodium-potassium ratios for food secure and food insecure subpopulations. Developed regression models to predict intake levels and hypertension risk. Results: Mean usual sodium intake is not significantly different for food secure and food insecure adults. Mean usual potassium intake is significantly lower and mean usual sodium-potassium ratio is significantly higher for the food insecure. Controlling for age and household size, food insecure adults are 43% more likely to be hypertensive than food secure adults. Conclusion: Public health measures to decrease cardiovascular disease risk should include interventions designed to specifically target populations with food insecurity. ASSOCIATIONS AMONG FOOD INSECURITY, DIETARY SODIUM AND POTASSIUM INTAKE LEVELS, AND HYPERTENSION: A CROSS-SECTIONAL STUDY BASED ON NHANES 2007-2010 DATA
Synthesis of Active MFe2O4/γ-Fe2O3 Nanocomposites (Metal = Ni or Co) for Reduction of Nitro-Containing Pollutants and Methyl Orange Degradation

Metal-ferrite/maghemite nanocomposites (NiFe2O4/***[Formula: see text]-Fe2O3 and CoFe2O4/[Formula: see text]-Fe2O[Formula: see text] were synthesized via doping maghemite with metal salt (NiCl2 or CoCl[Formula: see text] followed by reduction of metal ions using NaBH4. The synthesized metal-ferrite/maghemite nanocomposites were characterized by thermogravimetric analysis (TGA), X-ray diffraction (XRD), transmission electron microscopy (TEM), vibrating sample magnetometer (VSM), Fourier transform infrared (FTIR) and the amounts of the dopant-metal (Ni/Co) were determined using ICP-OES technique. Results showed that this synthetic route produced nanocomposites with highly active ferrite phases MFe2O4. The synthesized nanocomposites exhibited exceptional catalytic activities for the reduction of 4-nitrophenol and 2-nitroaniline as well as the catalytic degradation of methyl orange. Specific activity parameter of NiFe2O4/[Formula: see text]-Fe2O3 and CoFe2O4/[Formula: see text]-Fe2O3 toward reduction of 4-NP reached 993.9 and 929.8[Formula: see text]s[Formula: see text][Formula: see text]g[Formula: see text], respectively. These high values of specific activities are higher than most reported metal-ferrite composites prepared via traditional co-precipitation methods. Besides, strong magnetic properties of the prepared metal-ferrite/maghemites facilitates easy separation process for several reuses.
Prediction of hydrogen adsorption in nanoporous materials from the energy distribution of adsorption sites*

We present a fast and accurate, semi-analytical method for predicting hydrogen adsorption in nanoporous materials. For any temperature and pressure, the adsorbed amount is calculated as an integral over the energy density of adsorption sites (guest-host interactions) plus an average guest-guest term. The guest-host interaction energy is calculated using a classical force field with hydrogen modelled as a single-site probe. The guest-guest interaction energy is approximated using an average coordination number, which is regressed using Gaussian Process Regression (GPR). Local adsorption at each site is then modelled using a Langmuir isotherm, which when weighted with its probability density gives an accurate description of hydrogen adsorption. The method is tested on 933 metal-organic frameworks (MOFs) from the Computation-Ready Experimental (CoRE) MOF database at 77 K from to 100 bar, and the results are compared against GCMC predictions. To demonstrate the utility of the method, we calculated hydrogen adsorption isotherms for 12,914 existing MOF structures, at two different temperatures at a speed about 100 times that of GCMC simulations and analyzed the results. We found 13 MOFs with predicted deliverable capacities exceeding the DOE target of 50 g/L for adsorption at 100 bar, 77 K and desorption at 5 bar, 160 K. GRAPHICAL ABSTRACT
Synthesis and Molecular Docking Studies of Novel Triazole Derivatives as Antioxidant Agents

A series of 1,2,4-triazole and 1,2,4- thiadiazole derivatives were prepared starting from ethyl 4-(3-methyl-5-oxo-1,5-dihydro-4H-1,2,4-triazol-4-yl)benzoate. Firstly, both ethyl ester groups were simultaneously transformed into hydrazide groups, then into thiosemicarbazide groups using both microwave- assisted and conventional methods. The latter products were interacted with NaOH and H2SO4 to form ring assemblies containing two 1,2,4-triazole and 1,3,4-thiadiazole fragments, respectively. Antioxidant activities of the synthesized compounds were determined with CUPRAC, ABTS, and DPPH assays. Most of the compounds showed significant antioxidant activity and especially, compound 3 exhibited very good SC50 value for DPPH method and compound 3, 4a, 5a exhibited very high scavenging activity to the ABTS method. In addition, the in silico analysis was carried out with the synthesized derivatives to understand the mode of interaction with superoxide dismutase (SOD) and human tyrosine kinase using docking protocols in order to find out the most active antioxidant drug having high inhibitory activity in cancer.
Electrochemical Monitoring and Microbial Characterization of a Domestic Wastewater-Fed Microbial Fuel Cell Inoculated with Anaerobic Sludge

A dual-chambered microbial fuel cell with aqueous cathode was operated with domestic wastewater to investigate the electrogenic ability of anaerobic bacteria from a municipal wastewater treatment plant. Curves of cell potential vs. current density, power density vs. current density and current at a fixed load of 100 Ω, were obtained daily to monitor the electrochemical evolution of the system as a function of substrate use in several batch cycles. A maximum power density of 1.11 µWcm-2 was obtained after 65 days of continuous operation and a coulombic efficiency of 7% and a chemical oxygen demand removal of 76% were found in the last batch cycle. Anaerobic culture of the bacteria from the anode biofilm resulted in the isolation of two Gram-positive and two Gram-negative bacteria with divergent sugar fermentation capabilities, while analysis of 16S rRNA gene fragments showed three clones from the phyla Firmicutes, δ-Proteobacteria and α-Proteobacteria. Scanning electron imaging analysis revealed an increase in cell diversity and proliferation of methanogenic archaea when changing from synthetic to real wastewater. These results reveal the influence of substrate concentration and presence of methanogenic microorganisms on the production of power in microbial fuel cells, suggesting that future developments could be a contribution for the use of this technology to decontaminate domestic wastewater in small communities.
Study of Cellulase by Isolated Fungal Culture from Natural Resources and Application in Bio-ethanol Production

Cellulase are a group of hydrolytic enzymes capable of hydrolysing the most abundant organic polymer i.e. cellulose to smaller sugar components including glucose subunits. In the current study the cellulolytic fungi were isolated from natural resources like cattle dung contaminated soil & cattle dung samples for cellulase production. The samples were collected from 3 different areas of valsad region. The primary screening of cellulolytic fungi were adopted by exposing Carboxyl Methyl Cellulose agar (CMC), which is a selective media for cellulolytic microorganisms, the 14 fungal isolates were screened. The Further screening was carried out on Czapek-Dox agar medium amended with 1% CMC; among 10 efficient Cellulolytic fungi were showing the Cellulase activity. Depending upon the maximum diameter of clear zone produced in CMC agar medium & CzapekDox agar medium 2 different fungi CPF-3 & CPF-8 were selected for higher production of one of the most highly demanded industrial enzyme cellulase using cheap and easily available agro wastes as sole source of carbon. The production of cellulase was substantially enhanced by optimizing the several parameters like pH, temperature, substrate concentration; nitrogen sources and agro based materials were evaluated under both fermentation conditions such as Solid State Fermentation (SSF) & Submerged Fermentation (SmF). The highest cellulase production was recorded in SSF medium than SmF by CPF-8 fungal isolate by optimizing the culture conditions. The optimum conditions found for cellulase production were achieved at 30°C temperature, pH 5 with urea as nitrogen source and the agro waste material saw dust to stimulate the production of cellulase. After the fermentation process the enzymes were partially purified by ammonium sulphate precipitation method. The untreated substrate saw dust was hydrolysed with the partially purified enzyme cellulases and the hydrolysed product was fermented by the yeast for the bioethanol production. The cellulase activity was assayed by Carboxyl Methyl Cellulase “CMCase” assay & the protein estimation by Folin-Lowry method. The maximum cellulase activity of enzyme achieved by CPF-8 fungal culture 903.7 IU/ml in SSF & where as in SmF cellulase activity was achieved 800 IU/ml. The higher enzyme activity producer fungal isolate CPF-8 were further used for bioethanol production. After partial purification of enzyme the maximum enzyme activity was achieved in both fermentation condition at the 80% saturation about 192.59 IU/ml in SSF & 133.33 IU/ml was achieved in SmF medium. The untreated substrate saw dust hydrolysed by cellulase of SSF medium yielded at 120 hour of incubation period 2.05 mg ml sugar which produced 1.4 g% ethanol on fermentation. The ethanol yield of the hydrolysate of substrate saw dust by cellulase of SmF medium lower about 1.2 g%. The without pre-treated substrate saw dust, hydrolysed with cellulase of SSF medium is established as suitable for bioethanol production.
Electrospun Cellulose Fibres and Applications

Cellulose fibres and nanofibres have gained interest because of the high strength and firmness, biodegradability and renewability. The enthusiasm in cellulose and its modification as cellulose-derivative has been exponentially expanding. This paper discuss on cellulose and its derivatives, and methods to produce cellulose fibres and nanofibres. Emphasis is given on electrospinning technique, the most utilised technique to produce cellulose fibres and cellulose nanofibres with ranging from nanometer to millimeter in diameter. It also summarises cellulose in terms of a matrix of cellulose, solvent, parameter electrospinning, fibre diameter and their perspective applications.
Novel molecular biopesticides targeting the potassium ion channels of the red flour beetle, Tribolium castaneum (Herbst.)

23 Introduction . 24 Material and Methods . 26 Insects . 26 Design of dsRNA . 26 RNA extraction and cDNA synthesis . 26 PCR product . 27 Reverse transcriptionquantitative PCR (RT-qPCR) . 27 Synthesis of dsRNA . 28 Delivery of dsRNA by injection . 28 Delivery of dsRNA by feeding . 29 Statistical analysis . 30 Results . 30 Clone of SK and SH fragments . 30 Synthesis of the target interference sequence . 31 Physiological response of T. casteneum to TcK+ dsRNA . 32
A marine sponge associated fungal metabolite monacolin X suppresses angiogenesis by down regulating VEGFR2 signaling

Cancer is one of the leading causes of global death and there is an urgent need for the development of cancer treatment; targeting VEGFR2 could be one of the promising therapies. In the present study, previously isolated marine fungal metabolite monacolin X, suppresses in vitro angiogenic characteristics such as proliferation, migration, adhesion, invasion and tube formation of HUVECs when stimulated by VEGF, at a non-toxic concentration. Monacolin X downregulated VEGFR2, PKCα and PKCη mRNA expression. Further, monacolin X inhibited in vivo angiogenesis in CAM assay, vascular sprouting in aortic ring, decreased ISV and SIV length and diameter in Tg (Kdr:EGFP)/ko1 zebrafish embryos. Monacolin X showed reduced protein expression of pVEGFR2, pAKT1, pMAPKAPK2, pFAK and pERK1 in breast cancer lines and in DMBA induced mammary carcinoma in SD rats showed tumor regression and anti-angiogenesis ability via decrease pVEGFR2 and pAKT1 protein expression. In silico studies also revealed monacolin X ability to bind to crucial amino acid Cys 919 in the active site of VEGFR2 suggesting it to be a potent VEGFR2 inhibitor.
Core and margin in warm convective clouds – Part 1: Core types and evolution during a cloud's lifetime

Abstract. The properties of a warm convective cloud are determined by the competition between the growth and dissipation processes occurring within it. One way to observe and follow this competition is by partitioning the cloud to core and margin regions. Here we look at three core definitions, namely positive vertical velocity (Wcore), supersaturation (RHcore), and positive buoyancy (Bcore), and follow their evolution throughout the lifetime of warm convective clouds. Using single cloud and cloud field simulations with bin-microphysics schemes, we show that the different core types tend to be subsets of one another in the following order: Bcore⊆RHcore⊆Wcore. This property is seen for several different thermodynamic profile initializations and is generally maintained during the growing and mature stages of a cloud's lifetime. This finding is in line with previous works and theoretical predictions showing that cumulus clouds may be dominated by negative buoyancy at certain stages of their lifetime. The RHcore–Wcore pair is most interchangeable, especially during the growing stages of the cloud. For all three definitions, the core–shell model of a core (positive values) at the center of the cloud surrounded by a shell (negative values) at the cloud periphery applies to over 80 % of a typical cloud's lifetime. The core–shell model is less appropriate in larger clouds with multiple cores displaced from the cloud center. Larger clouds may also exhibit buoyancy cores centered near the cloud edge. During dissipation the cores show less overlap, reduce in size, and may migrate from the cloud center.