Miracle-dz/UniFAR-FTUs huggingface dataset:
Producción de electricidad en Celdas de Combustible Microbianas a partir de tiosulfato utilizando cepas de Acidithiobacillus ferrooxidans

Acidophilic bacteria are predominant in the ecosystems of acid mine waters. The objective of the study was to produce electricity in the Microbial Fuel Cells (CCMs) from the thiosulfate using Acidithiobacillus ferrooxidans. Two cultures of At. ferrooxidans strain LB102 and LB151 were used, which were characterized morphologically, electrochemically and molecularly. The electrochemical techniques used were cronoamperometry and cyclic voltammetry. The cyclic voltammetry (VC1 and VC2) show current peaks of oxidation and reduction of the compounds indicating that there is an interaction of the bacteria with the surface of the electrode. The chronoamperometries (C1 and C2) showed that the bacteria was the producer of electricity when using thiosulfate alone and thiosulfate with iron. In the production of electricity, we have that the CCM1 produced an average power density of 2.34 mW /m in the range of 23-119 h, the CCM2 produced an average power density of 3.02 mW /m in the range of 23-119 h, the CCM3 produced 29 mW /m of average power density in 7 h, CCM4 produced an average power density of 2.67 mW /m in 7 h, and CCM5 produced an average power density of 1.03 mW /m in 5 h. The controls of the 5 cells produced a lower average power density than the cells inoculated with the culture. The energy produced by the cells was also calculated, CCM1 produced 629.91 J, la CCM2 1610 J, la CCM3 0.7213 J, la CCM4 0.9648 J y la CCM5 0.04 J. The molecular tests identified the 2 strains as Acidithiobacillus ferrooxidans. These results indicate that with the inorganic compound thiosulfate as a substrate electricity was produced using the culture of 2 strains of At. Ferrooxidans in the Microbial Fuel Cells.
Generation of twisted nanowires with achiral organic amphiphilic copper complexes

Drying under solvent atmosphere (DUSA) was investigated as an experimental technique to generate self-assembled nanowires and needles from solutions of organic molecules under controlled conditions. Experimental observations of twisted nanowires are reported. These twisted nanowires were obtained by drying of solutions of achiral molecules under solvent controlled atmospheres: achiral, amphiphilic copper complexes were dissolved in an achiral solvent and these solutions were dried under controlled conditions. Two structurally related copper complexes were investigated. Microscopic investigations of the resulting nanowires revealed, and scanning electron microscopy confirmed: self-assembled twisted ribbons could be selectively obtained from one of these compounds. This behavior could be explained by comparing the ratio of the size of the head group and the overall length of the molecules. The occurrence of chiral filaments and chiral phases of nanosegregated filaments are rare in achiral compounds. The occurance of such twisted filaments is thought to be related to symmetry-breaking during a phase transition from liquid crystalline or lyotropic liquid crystalline phases to a nanosegregated phase. In the reported experiments, the concentration of a solution was gradually increased until crystallization occurred. The results clearly show how DUSA can be applied to investigate the capability of achiral substances to yield twisted filaments. Moreover, the investigated compounds had high-enough charge carrier mobilities, such that the twisted filaments obtained are candidates for self-assembled, intrinsically coiled nano-inductivities.
Tubular electrospun scaffolds tested in vivo for tissue engineering

Tissue engineering has been widely used for its great variety of functions. It has been seen as a solution to satisfy the need for vascular substitutes like small diameter vessels, veins, and nerves. One of the most used methods is electrospinning, due to the fact that it allows the use of various polymers, sizes, mandrels and it can adjust the conditions to create personalized scaffolds. For the creation of scaffolds is fundamental to understand the advantages and disadvantages of each polymer, of this, will depend the biodegradability, biocompatibility, porosity, cellular adhesion, and cell proliferation as it is essential to mimic the extracellular matrix and provide structural support for the cells. The aim of this review was to investigate which materials are being used for the creation of tubular scaffolds by electrospinning. Here we selected only in vivo evaluation to demonstrate remodeling of the grafts into native-like tissues, in vitro evaluations had been excluded from this review. We analyze the conditions like speed, distance and voltage and the modifications like growth factors and combinations of natural and synthetic polymers that allow the authors to have a functional scaffold that will suit its purpose.
Chlorophyll, Carotenoids Pigments and Growth of Three Onion Cultivars as Affected by Saline Water Irrigation

A POT experiment was conducted in the greenhouse of the National Research Center, Dokki, Cairo, Egypt during winter season of 2014/2015 to evaluate the effect of salt stress from diluted seawater (tap water, 2000, 4000 and 6000ppm) on growth, yield and chemical composition of three onion varieties (Giza 6, Giza 20 and Behary red). Nether top height nor the number of green leaves cleared any significant difference between the used three varieties. Furthermore, the bulb/top ratio or bulb/whole plant ratio of Giza 6 plants exceeded those of Giza 20 or Behary red. Behary red leaves showed the lowest values of Chl. a, Chl. b, total carotenoids and Chl. a+Chl. b. However, the highest values of these parameters were detected in the leaves of plants of Giza 20 variety and those for Giza 6 comes in between. Top height decreased but the number of green leaves did not affect by salt stress. However, the top and whole plant dry weight drastically depressed by increase salt concentration in water of irrigation (diluted seawater). Nevertheless, bulb to top ratio and bulb to whole plant ratio (in dry weight basis) increased as the salt level increased in the root media. The results also indicated that salinity promoting the concentration of these pigments and this promotion increased until 4000ppm salt level and tended to decrease with the highest level used but still more than the control.
Acute Effects of Passive Muscle Stretching on the Stretch-Shortening Phenomenon.

Two experim ents exam ined the acute effects of passive m uscle stretching on the perform ance o f a skill (vertieal jum p) which takes advantage o f the stretch-shortening phenom enon. Because recent w ork suggests that passive stretching m ight im pede the mechanisms (elastic and m yoelectrical potentiation) thought to be responsible for this phenom enon, it was hypothesized that stretching would decrease the ju m p height o f jum ps executed with a preparatory counterm ovem ent (CM J), but not the ju m p height o f those initiated from a static, squatting position (SJ). In the first experim ent, subjects perform ed CMJ and SJ jum ps under two different conditions: after passively stretching the knee and hip extensors, and after 10 minutes of quiet sitting. A s predicted, stretching induced a significant decrease (p<.05) in jum p height for the CM J; however, a sim ilar decrease (p<.05) also occurred for the SJ. These results suggest that the influence o f acute stretching on perform ance is not limited to skills w hich incorporate a stretch-shortening cycle, and that stretching does not necessarily im pede the factors purported to be responsible for the stretch-shortening phenomenon. Experim ent 2 sought to explicate the reasons w hy an acute bout of passive stretching can negatively im pact jum ping performance. Specifically, the aim was to determ ine if stretching could m odify m usculotendinous stiffness and/or electrical activity of the p lan tar flexors during both stretch-shortening m ovem ents and movements involving purely concentric contractions. Again, jum ps perform ed with a counterm ovem ent w ere com pared to static jum ps; however, in order to isolate the plantar flexors, motion was restricted to the ankle jo in t only. CMJ jum p height was compromised after stretching but SJ perform ance remained unchanged. The decrease in CMJ performance might be partially accounted for by a reduction in elastic potentiation, because a decrease in m usculotendinous stiffness was also obsetwcd post-stretching. No change in electrical activ ity occurred betw een the preand post-stretch conditions for the CMJ, suggesting that a decrease in
Development and Assessment of a Paper-based Enzyme-linked Immunosorbent Assay for the Colorimetric Diagnosis of Human Brucellosis

Abstract Brucellosis is one of the most common zoonotic diseases with widespread distribution. Traditional methods for diagnosis of brucellosis require long determination times with complex instruments that do not meet the needs of rapid, simple, and convenient analysis. Thus, a newly rapid and simple method for the colorimetric diagnosis of brucellosis was developed using a paper-based enzyme-linked immunosorbent assay (p-ELISA). A total of 135 serum samples were analyzed including 33 samples as healthy controls, 77 samples as the positive group with brucellosis, and 25 samples were infected with other bacteria. The major parameters were optimized for the reported protocol. To evaluate the method, receiver operating characteristic analysis and statistical analysis were carried out using these serum samples. In the established p-ELISA system, only 5 ml of serum were required to detect the antibodies of human brucellosis in suspected brucellosis patients in less than 2 hours. The receiver operating characteristic curve was plotted, and the area under the curve of receiver operating characteristic was 0.996 and shown to be a highly accurate diagnostic test. The sensitivity was determined to be 0.961, the specificity 0.983, and the cutoff value 2.260. The gray scale intensity of the human brucellosis patients group was significantly higher than for the healthy and the non-brucellosis patient groups (p 0.001). This newly developed system allows the rapid and easy diagnosis of human brucellosis.
Lowered Plasma Steady-State Levels of Progesterone Combined With Declining Progesterone Levels During the Luteal Phase Predict Peri-Menstrual Syndrome and Its Major Subdomains

Background It is unknown whether lowered steady state levels of sex hormones coupled with changes in those hormones during the menstrual cycle are associated with premenstrual syndrome (PMS). Objective To examine associations between levels of progesterone and oestradiol during the menstrual cycle and PMS considering different diagnostic criteria for PMS. Methods Forty-one women aged 18–45 years with a regular menstrual cycle completed the Daily Record of Severity of Problems (DRSP) for all 28 consecutive days of the menstrual cycle. Blood was sampled at days 7, 14, 21, and 28 to assay oestradiol and progesterone. Results We developed a new diagnosis of peri-menstrual syndrome, which is characterized by increased DRSP severity in pre and post-menstrual periods and increased scores on the major DRSP dimensions, i.e., depression, physio-somatic symptoms, breast tenderness and appetite, and anxiety. This new diagnosis performed better than classical diagnoses of PMS, including that of the American College of Obstetricians and Gynecologists (ACOG). Lowered steady state levels of progesterone, when averaged over the menstrual cycle, together with declining progesterone levels during the luteal phase predict severity of peri-menstrual symptoms. Steady state levels of oestradiol and declining oestradiol levels during the cycle are also related to DRSP severity although most of these effects appeared to be mediated by progesterone. Conclusion A significant increase in menstrual-cycle related symptoms can best be conceptualized as “peri-menstrual syndrome” and may result from insufficient progesterone production (relative corpus luteum insufficiency), which, in part may result from lowered oestradiol production indicating suboptimal pre-ovulatory follicular development.
Chemical space exploration guided by deep neural networks

A parametric t-SNE approach based on deep feed-forward neural networks was applied to the chemical space visualization problem. It is able to retain more information than certain dimensionality reduction techniques used for this purpose (principal component analysis (PCA), multidimensional scaling (MDS)). The applicability of this method to some chemical space navigation tasks (activity cliffs and activity landscapes identification) is discussed. We created a simple web tool to illustrate our work (http://space.syntelly.com).
Hybrid Loss‐Compensated Plasmonic Device

Here it is studied how the active medium affects the Rabi‐analog splitting when an active plasmonic microcavity mode is coupled to a surface plasmon polariton mode. The incorporation of Rubrene‐like molecules in the plasmonic microcavity results in stronger modal coupling. Anticrossing is observed with a large Rabi‐analog splitting energy of 280 meV in the strong coupling regime. The active medium contributes to the split enhancement through channeling more energy toward the coupling. The variation of photoluminescence emission and exciton‐cavity mode coupling from the hybrid plasmonic microcavity are also measured. This work shows that by introducing an active medium in the microcavity, mode coupling between microcavity and surface plasmon polariton can be enhanced and the hybrid plasmonic device exhibits parity–time symmetry characteristics.
Chemical constituents of Curcuma Heyneana and Curcuma Zedoaria

Curcuma zedoaria and C. heyneana are two species belong to the Zingiberaceae family. The essential oils and phytochemical of these two species have been studied. The essential oils of the fresh rhizomes of C. zedoaria and C. heyneana were extracted by using the hydrodistillation technique and analysed by gas chromatography and gas chromatography–mass spectrometry (GC-MS). Hydrodistillation of C. zedoaria gave 71.3% while C. heyneana yielded 63.6% of essential oils comprised of monoterpenes, sesquiterpenes, oxygenated monoterpenes, and oxygenated sesquiterpenes. The major component presence in C. zedoaria was furanogermenone (42.2%), while in C. heyneana were ar-turmerone (13.9%) and germacrone (14.4%). Extraction of dried rhizomes of both Curcuma species was done by soxhlet extraction method using chloroform. Fractionation and purification using vacuum liquid chromatography (VLC) and preparative thin layer chromatography (PTLC) successfully isolated ar-turmerone, curcumin and a-turmerone from C. heyneana while furanogermenone and isofuranodiene were obtained from C. zedoaria. Their structures were elucidated by spectroscopic method such as IR, 1H NMR and 13C NMR spectroscopies. The antioxidant activity of essential oils and crude extracts were carried out using 2,2-diphenyl-1-picrylhydrazyl radical (DPPH), 2,2? -azino-bis(3-ethylbenzthiazoline-6-sulphonic acid) (ABTS), and ferric reducing antioxidant power (FRAP) assay. The antioxidant screenings revealed that crude extract of C. heyneana had strong antioxidant radical scavenging with DPPH assay (IC50 50.93 µg/mL), ABTS (IC50 90.90 µg/mL) and FRAP (85.70 mM).
New Zinc–Vanadium (Zn–V) Hybrid Redox Flow Battery: High-Voltage and Energy-Efficient Advanced Energy Storage System

Herein for the first time, we have reported the performance and characteristics of new high-voltage zinc–vanadium (Zn–V) metal hybrid redox flow battery using a zinc bromide (ZnBr2)-based electrolyte. The Zn–V system showed an open-circuit voltage of 1.85 V, which is very close to that of zinc–bromine flow cell. The obtained results exhibited a voltaic, Coulombic, and energy efficiencies of 88, 82, and 72% at 20 mA.cm–2, respectively, in which low-cost microporous membrane was used as a separator. However, the cell tested using Nafion-117 membrane showed voltaic, Coulombic, and energy efficiencies of 84, 83, and 71%, respectively at a current density of 20 mA.cm–2. Furthermore, the Zn–V cell performance is also compared with the Zn–Br2 flow system to highlight the advancement of the new Zn–V system. The cell also showed stable performance up to 50 cycles at a current density of 20 mA.cm-2.
Significance of soluble PD-L1 for malignant tumors

The tumor immune microenvironment has drawn attention as a therapeutic target. One immune suppressive protein, PD-L1 (B7H1 or CD274), a 40-kDa transmembrane glycoprotein, is known as a primary ligand of PD-1. PD-L1 expression has been observed in active T cells, B cells, NK cells, DCs, monocytes, macrophages, activated vascular endothelial cells, mesenchymal stem cells, and tumor cells [1]. The interaction of PD-L1 and PD-1 can induce T cell tolerance [2], T cell apoptosis [3], and T cell exhaustion [4]. The enhancement of this immune suppressive protein leads to evasion of the host immune response and tumor aggravation. A relationship between high PD-L1 expression in tumor tissues and poor prognosis in various malignant tumors such as non-small cell lung cancer [5], ovarian cancer [6], renal cell carcinoma [7], melanoma [8], breast cancer [9], and soft tissue sarcoma [10] has been reported. Thus, it is recognized that PD-L1 expression affects tumor behavior and prognosis.
Lipid Peroxidation in Meat and Meat Products

The meat and meat products present a considerable amount of lipid in their composition. The lipid composition of these foods is diversified. Thus, depending on the type of meat, which can be rich in unsaturated fatty acid, there is an increase in the disposition for lipid oxidation. Oxidation reactions not only reduce the shelf life and nutritional value of food products but also can generate harmful compounds. Thus, having in view that many types of new technologies are applied to these foods, the proposal of this chapter of how these new methodologies have affected the lipid peroxidation of these foods. Moreover, the aim is to evaluate what impacts on the chemical characteristics of these foods. and
TRANSITION STREAMER-ARC DANS UNE DÉCHARGE NANOSECONDE D'AIR

Cette etude porte sur la transition streamer-arc generee par une decharge nanoseconde d'air a pression atmospherique afin d'apporter une meilleure comprehension des processus d'allumage. Differents diagnostics optiques permettent une analyse spatio-temporelle du depot d'energie. La temperature du gaz pendant la phase streamer est obtenue par spectroscopie d'emission via le second systeme positif de N2. La densite electronique et la temperature de l'arc sont mesurees par la spectroscopie d'emission des raies de N +. La temperature du gaz et la temperature de vibration des molecules de N2 dans leur etat electronique fondamental ainsi que la pression sont egalement mesurees dans le gaz entourant l'arc par diffusion Raman spontanee. Les resultats obtenus construisent une base de donnees et de conditions initiales pour la validation de simulations numeriques de l'allumage par decharge plasma.
Film based on magnesium impregnated biochar/cellulose acetate for phosphorus adsorption from aqueous solution

Phosphorus (P) is a nutrient necessary for agricultural production and a potential originator for eutrophication in water bodies, resulting in qualitative changes; it may also affect the aquatic ecosystem and human health. In addition, as a finite resource, the importance of studying strategies to remove it from water is evident, thus making possible its recycling. Many studies have used powdered materials, including biochars, for P water decontamination; however, the difficulty of separating and collecting these materials from water after adsorption may be difficult. Therefore, using hybrid materials in which the fine particles (powder) are impregnated into larger, solid particles by means of a polymeric host can facilitate collection and reuse after P adsorption. In this context, this study aimed the synthesis and characterization of a new hybrid film formed by the biopolymer cellulose acetate (CA) and biochar (FAC-B) for P adsorption in aqueous solution. We obtained biochar from the pyrolysis of carrot residue (Daucus carota L.) and doped it with magnesium. As a biodegradable polymer and the most abundant natural polysaccharide in the environment, using CA as a biochar support material is an environmentally friendly alternative. We prepared the CA film with the casting method, and the biochar was inserted into the filmogenic solution in the same amount as the CA. The film was characterized by X-ray diffraction (XRD), thermogravimetric analysis (TGA), differential scanning calorimetry (DSC), molecular absorption spectroscopy in the infrared region with an attenuated total reflectance (FTIR/ATR) accessory, and X-ray Photoelectron Spectroscopy (XPS). We evaluated the thickness, weight, density, H2O uptake and H2O solubility of the produced FAC-B. The maximum adsorption capacity of P by FAC-B was 21.57 mg g−1, in agreement with the Langmuir isotherm model. The adsorption value suggests that the film has the potential to be used as an efficient P adsorbent in water.
Total phenolic content (TPC) and quality of herbal lassi fortified with Turmeric (Curcuma longa) extract

Lassi, a popular curd based traditional fermented milk beverage of India. Lassi was prepared from standardized cow milk curd using 1% commercial yoghurt culture containing Streptococcus thermophilus and Lactobacillus bulgaricus. Maximum concentration of herbal extract added during processing of herbal lassi was optimized with Turmeric (Curcuma longa) @ 1% (v/v) in lassi on the basis of sensory evaluation. Total phenolic content (TPC) of turmeric extract based herbal lassi was also evaluated. TPC of the turmeric based herbal lassi was measured as Gallic Acid Equivalent (GAE) using a double beam UV- visible spectrophotometer at 765 nm. The TPC of the turmeric extract fortified lassi was found to be 0.226±0.001mg of GAE/g and differed significantly (P less than 0.05) with the control lassi (without any herbal extract) which showed a TPC of 0.124±. 001 mg of GAE/g. Turmeric lassi was found having high phenolic content with good sensory property and found acceptable up to 9 days when stored at 7±2 0C in a glass bottle.
DETERMINATION OF CHLOROPHYLL CONTENT IN SOLANUM XANTHOCARPUM SCHARD& WENDL IN DIFFERENT SOIL

Concentration of Leaf chlorophyll is an important factor that is regularly measured as an indicator of chloroplast content, photosynthetic mechanism and of plant metabolism. In this study chlorophyll a (Chl. a) and b (Chl. b) Total chlorophyll and carotenoidswere determined in different soil such as Kanhar soil, Bhata soil and Matasi soil in Solanum xanthocarpuum . The quantative difference of chlorophyll a (Chl.a) and b (Chl.b)Total chlorophyll and carotenoids content were observed.Maximum amount of chlorophyll a, chlorophyll b, total chlorophyll and carotenoids were found with plants grown in Kanhar soil, Bhata soil and Matasi soil respectively.
IL-27 and TCR Stimulation Promote T Cell Expression of Multiple Inhibitory Receptors

Inhibitory receptors (IR) are a diverse group of cell surface molecules that modulate T cell activation, but there are gaps in our knowledge of the cell-extrinsic factors that regulate their expression. The present study found that in vivo overexpression of IL-27 in mice led to increased T cell expression of PD-L1, LAG-3, TIGIT, and TIM-3. In vitro, TCR stimulation alone promoted expression of multiple IRs, whereas IL-27 alone induced expression of PD-L1. However, the combination of intermediate TCR stimulation and IL-27 resulted in synergistic induction of LAG-3, CTLA-4, and TIGIT. In vivo, infection with Toxoplasma gondii resulted in parasite-specific effector T cells that expressed high levels of IR, and at local sites of infection where IL-27 production was highest, IL-27 was required for maximal effector cell expression of PD-L1, LAG-3, CTLA-4, and TIGIT. Together, these results affirm the critical role of TCR signals in the induction of IR expression but find that during infection, IL-27 promotes T cell expression of IR.