Miracle-dz/UniFAR-FTUs huggingface dataset:
SILVER NANOPARTICLES ELICITED IN VITRO SHOOTS OF SALVIA OFFICINALIS L. FOR ACCUMULATION OF 1, 8- CINEOLE ESSENTIAL OIL

The effects of silver nanoparticles (AgNPs) on the fresh weight, dry weight and content of 1, 8-cineole from in vitro shoots of Salvia officinalis L. were evaluated. The results showed that the benzyl adenine had the ability to in vitro regeneration of shoots from nodes of S. officinalis L. Murashige and Skoog (MS) medium supplemented with 1 mg/l BA gave the highest shoots fresh weight (3.552 g) and dry weight (325.5 mg). The application of AgNPs on in vitro shoots of S. officinalis L. results in the alteration of the shoots growth and some biochemical parameters. MS medium supplemented with 10 mg/l of AgNPs and 1 mg/l of BA gave the highest fresh weight (5.19 g) and dry weight (497.9 mg) of shoots. The defense system of S. officinalis L. showed an increase in activity of superoxide dismutase and catalase under the effect of AgNPs. MS medium supplemented with 80 mg/l of AgNPs and 1 mg/l of BA gave the highest superoxide dismutase activity (0.363 unit/ ml). MS medium supplemented with 20 mg/l of AgNPs and 1 mg/l of BA revealed the highest catalase activity (15.763 unit/ ml). Gas chromatography–mass spectrometry (GC-MS) analysis showed the highest content of 1, 8-cineole in medium supplemented with 1 mg/l of BA and 20 mg/l of AgNPs. AgNPs at low concentration enhance the fresh and the dry weight of S. officinalis L. in vitro shoots and can be used for the enhancement of the production of bioactive compounds and activate the antioxidants system of S. officinalis L.
Project 2 : An Isoperimetric Sloshing Problem in a Shallow Container with Pinned Contact Line

I am an applied mathematician who is interested in using methods from the calculus of variations, applied analysis, and asymptotic analysis to answer questions about ordinary and partial differential equations (ODEs and PDEs) that arises in physical science, particularly fluid dynamics. The primary focus of my dissertation investigates how the presence of surface tension on the fluid free surface influences the (natural) sloshing frequencies of an incompressible, inviscid fluid with irrotational flow in rigid containers.
THE INFLUENCE OF E-COMMERCE ADOPTION USING SOCIAL MEDIA TOWARDS BUSINESS PERFORMANCE OF MICRO ENTERPRISES

Sosial media plays an important role in e-commerce adoption. As an e-commerce medium, social media can be utilized by Small and Medium Enterprises (SMEs) to promote and sell their product. Many of SMEs especially micro enterprises are still not utilizing e-commerce adoption. The e-commerce adoption can be seen as an influenting factor towards business performance. This study aims to determine the factors that influence micro enterprises who use social media in adopting e-commerce. This study also aims to look at the effect of e-commerce adoption using social media towards business performance. The study was conducted from 104 respondents in Jakarta Region which were taken by purposive sampling method. Data were analyzed using structural equation modeling with Partial Least Square (PLS). The results revealed that e-commerce adoption using social media conducted by micro enterprises is influenced by perceived benefits and external environment. The results revelaed that the owner characteristics has no significant effect on e-commerce adoption. It indicates that micro enterprises who adopt e-commerce using social media were influenced by perceived benefits and external environtment but they were not infuenced by their characteristics of knowlegde and skill in information technologies. The e-commerce adoption also proved to has a positive effect on business performance of micro enterprises. Micro enterprises who adopt e-commerce using social media feel that profits are increasing, the sales volume of products is growing and the area of marketing is expanding.
Evidence for Genetic Coupling with Nitrile Hydratase

An enantiomer-selective amidase active on several 2-aryl and 2-aryloxy propionamides was identified and purified from Brevibacterium sp. strain R312. Oligonucleotide probes were designed from limited peptide sequence information and were used to clone the corresponding gene, named amdA. Highly significant homologies were found at the amino acid level between the deduced sequence of the enantiomer-selective amidase and the sequences of known amidases such as indoleacetamide hydrolases from Pseudomonas syringae and Agrobacterium tumefaciens and acetamidase from Aspergillus nidulans. Moreover, amdA is found in the
EFFECTS OF CARBONIZED CHICKEN MANURE ON THE GROWTH, NODULATION, YIELD, NITROGEN AND PHOSPHORUS CONTENTS OF FOUR GRAIN LEGUMES

The effects of carbonized chicken manure (CCM) on the growth, nodulation, yield, nitrogen (N) and phosphorus (P) contents of four grain legumes (soybean, cowpea, common bean and adzuki bean) were evaluated in a greenhouse experiment. Carbonized chicken manure produced from chicken manure dried in a furnace at 450°C was used in this experiment. The manure was incorporated into the sandy loam soil of each grain legume at two rates (0 kg N ha−1 and 100 kg N ha−1) three weeks before sowing. Growth, nodulation and total biomass N and P were evaluated at peak flowering stage of growth. The CCM showed positive effects on nodule number and weight of soybean and cowpea while it depressed nodule number in adzuki bean. Biomass total N content of soybean and cowpea increased with CCM supply while it decreased in adzuki bean. Biomass and seed total P content of soybean, cowpea and adzuki bean all increased in response to CCM application. Soybean and cowpea seed yields increased by 27% and 43% respectively in response to CCM supply. There was a strong positive correlation between seed P content and seed yield of soybean which indicates the importance of elemental P to soybean seed yield. No such phenomenon was observed in adzuki bean. A strong positive correlation was also observed between seed total N content and seed yield of the grain legumes. The results indicate that although common bean had the highest biomass total P content at peak flowering stage both vegetative and reproductive growth were poor due to the unsuitably high day/night temperatures in the greenhouse. Application of CCM slightly depressed yield of adzuki bean due to the reduction in the number of pods per pot and the 100 seed weight. This study shows that CCM is a good source of N and P for the growth, nodulation and yield of some grain legumes particularly soybean and cowpea.
BONE MINERAL DENSITY AND VITAMIN D STATUS AMONG POSTMENOPAUSAL IRAQI WOMEN

Menopause is the most prevalent cause of accelerated bone loss in women. Vitamin D insufficiency is predominant in postmenopausal women and has been related with low bone mineral density. The present study intends to estimate the bone mineral density and the incidence of vitamin D3 deficiency among postmenopausal Iraqi women. This study was carried through November 2019 to March 2020 at the Rheumatology and Rehabilitation Unit/ Baghdad Teaching HospitalMedical City/ Baghdad, with a total of 35 postmenopausal women. Their ages ranged from 52-65 years and they were paralleled with 35 healthy premenopausal women as control group. All individuals were diagnosed by physicians in a Rheumatology and Rehabilitation Outpatient Clinic and the clinical data was collected along with the assessment of biochemical parameters. There was a significant increase (p d” 0.05) in fasting serum glucose, total cholesterol, triacylglycerol, and low density lipoprotein cholesterol, whereas a significant decrease (p d” 0.05) in serum calcium and vitamin D3 were found in postmenopausal women as paralleled to premenopausal. Hypovitaminosis D were appeared in postmenopausal women (11.30±5.6 ng/ml) vs. 47.48±6.26 ng/ml in premenopausal. Also, there was a significant decrease (p= 0.0011) in bone mineral density and T-score in postmenopausal women as compared to premenopausal with OR and CI= 1.07 (0.76-1.52), 1.37 (0.871.76) receptively. Furthermore, there was a significant negative correlation between bone mineral density with body mass index and fasting serum glucose also between serum vitamin D3 and fasting serum glucose. Hypovitaminosis D with low bone mineral density were associated with poor glycemic control and dyslipidemia among postmenopausal women.
OSMOREGULATION AND ANTIOXIDANT EFFECTS OF COPPER SULFATE AND PROPOLIS IN RED BLOOD CELLS OF MALE RATS

This experiments was conducted to elucidate the effect of copper supplementation on performance, RBCs bioactive markers, ATPase activity and antioxidant responses. Twenty one adult Wister rats were randomly distributed into four equal groups; first group was a control group (C group); animals of 2nd group (Cu) received copper (75 mg/kg body weight), animals of 3rd group (CuP) received Copper sulfate (75mg /kg body weight) + propolis (50 mg/kg body), for 60 days. Results revealed that the dose of CuSO4 (75 mg/Kg) did not affect significantly the animals performances. Serum copper level of Cu group (36.16μg/ dl) produce improvement in red blood cell membrane hypotonic osmotic fragility, hemoglobin concentration as well as the ATPase enzyme activity. Moreover, Cu improved significantly total antioxidant capacity (TAOC) and reduces the malondialdyhyde acid (MDA). There was no significant role for the combination of propolis with copper sulfate on different parameters with exception of TAOC & MDA. In conclusion, the dose of 75mg/kg was a safe and it was convincing to improve the level of copper in the blood and showed its importance in maintaining the size and membrane integrity of red cells, with no any side effects.
Transfer of bacteria via vapor in solar desalination units

AbstractMicrobial contamination of drinking water is a major public health threat worldwide. Some studies have reported unusual findings of microbiological contamination in distilled water produced from solar stills. Not knowing the exact reason for this presence, they attributed it to possible cross contamination. In the complete absence of literature on the transfer of bacteria in solar stills, this research was conducted to investigate whether bacteria in water subjected to low temperature solar desalination finds its way into the effluent as a result of cross contamination or transfer through water vapor. This study looked at how the type of bacteria and the water temperature affected transfer in the absence of solar UV radiation. Simulated distillation experiments performed in darkness were conducted by spiking a pure culture of Escherichia coli or Enterococcus faecalis in tap water and heating it to low temperature ranges similar to those reached in solar stills under real sunlight. Results show tha.
FUNCTIONAL CHARACTERIZATION, PHYTOCONSTITUENTS, ANTIOXIDANT AND ANTIMICROBIAL ACTIVITY OF LEAF EXTRACT OF SYZYGIUM AROMATICUM

Syzygium aromaticum (S. aromaticum) commonly known as clove. The work is designed to study and evaluate the antibacterial potency of phytochemicals from Syzygium aromaticum leaves and characterized by FTIR. However, the present study analysis the qualitative phytochemical contents of aqueous, diethyl ether and ethanol extract of Syzygium aromaticum (clove) leaves. Phytochemicals are a powerful group of chemicals that are derived from natural resource, especially with plants origin. Phytochemical are important for its chemoprevention and chemotherapeutic effects. Phytochemicals are useful for the metabolization of food and drugs. Antioxidants are biomolecules which are cable to fight against the free radicals in the body. Free radicals are harmful if it is present in higher level. They are linked up with multiple illnesses, including diabetes, heart disease, cancer etc. Results revealed the phytochemicals namely alkaloid, flavonoids, steroids, phenol, terpenoids, saponins and tannins are present in the leaf extract. The antioxidant activity of the aqueous and ethanol extract was evaluated by ferrous ion chelating assay, nitric oxide radical scavenging assayand DPPH assay. The ethanol extract showed better radical scavenging activity than aqueous extract except the nitric oxide radical scavenging activity. FTIR results showed more than ten peaks for represent the main fine composition of the extract. The bands were Probable assign with the components present in various extracts. By this analysis, functional groups such as amines, amides and alkyl halides are present in all the two extracts. Antibacterial potential of solvents extracts of clove leaves was assessed against three Gram positive and three Gram negative bacteria. All the tested pathogens were sensitive to aqueous and ethanol extract of clove leaves. Ethanol extract of leaves shows maximum zone of inhibition against Staphylococcus aureus and Bacillus subtilis whereas aqueous extracts exhibited good activity against Staphylococcus aureus, Bacillus subtilisand Streptococcus mutans.This study illustrates that compounds present in S. aromaticum could be a potent against the microorganism tested and it can could be used for the advancement in developing different drugs in pharmaceutical industries.
Perceived stress levels due to the SARS-COv2 pandemic in students at the Bosa Porvenir Facilities of the Universidad Distrital 2020

This study is quantitative in nature and scope is transeccional descriptive. The objective was to characterize the stress levels associated with the mandatory preventive isolation phase due to SARS-Cov2 in students of the Universidad Distrital Bosa Facilities . A convenience sampling was chosen (n = 222). The results show that intense stress levels are predominant; stress behavior in college students during the pandemic varies according to gender, income level and academic situation. key words: perceived stress, University students, coronavirus, mental health. Resumen El presente estudio es de carácter cuantitativo y su alcance es descriptivo transeccional. El objetivo fue caracterizar los niveles de estrés asociados a la fase aislamiento preventivo obligatorio por SARS-Cov2 en estudiantes de la Universidad Distrital Sede Bosa Porvenir. Se optó por un muestreo a conveniencia (n = 222). Los resultados evidencian que los niveles de estrés intenso son predominantes; el comportamiento del estrés en universitarios durante la pandemia varía según el sexo, el contexto económico y la situación académica. Palabras Clave: estrés percibido, estudiantes universitarios, coronavirus, salud mental.
Tail Risk and the Returns of Fund of Hedge Funds

Abstract We examine the tail risk exposure of Fund of Hedge Funds (FOHFs) from 1995 to 2010. We show that most of the hedge funds and FOHFS have significant tail risk exposure during the sample period. On average, the tail risk exposure of FOHF is at a similar level to the normal hedge fund. Our research provides direct evidence that FOHFs cannot effectively diversify tail risk. In addition, we find that younger funds charging higher management fees, requiring shorter lockup periods and using leverages tend to have higher exposures to tail risk events. Moreover, we document an insignificant return of the portfolio taking short position on the lowest tail beta FOHFs and long position on the highest tail beta FOHFs. This leads to the view that the FOHFs writing tail risk insurances do not receive enough compensation for their extra loading on tail risk. JEL Classification: G01; G11; G15; G23
Removal of lead from aqueous solution by EPS producing bacteria

Heavy metal pollution in soil currently becomes a serious environmental issue of worldwide. The present study was carried out to optimize the various environmental conditions for biosorption of lead by investigating as a function of the initial metal concentration (50-250mg L), contact time (24-120 hours), and pH (4-8) using EPS producing bacteria (UPI-7) as adsorbent. Biosorption of lead ion from aqueous solution was optimized in a batch system using response surface methodology. The values of R (0.9710) for lead ions indicated the validity of the model. The analysis of variance (ANOVA) of the cubic model demonstrates that the model was highly significant. The response surface method indicated that 50 mg L 1 initial lead concentration, pH 6 and a contact time of 72 h were optimal for biosorption of lead in which 61% of the lead was removed from the solution. FTIR spectroscopy spectra analysis indicated that presence of hydroxyl and carboxyl functional groups were involved in lead biosorption process.
Trace Metal Speciation in Three Unbuffered Salt Solutions Used to Assess their Bioavailability in Soil

Three unbuffered salt solutions used to estimate soil trace metal bioavailability were compared. The objective was to evaluate chemical speciation of Cd, Cu, Pb, and Zn in 0.01 M CaC l2 0.1 M NaNO 3 , and 1 M NH 4 NO 3 extracts. The metal in each extract were speciated with a model that was optimized experimentally using an exchange resin. In NH 4 NO 3 , Cd, Cu, and Zn were completely complexed by NH 3 . In extracts of pH lower than 6.5, Pb was essentially present as free Pb 2+ and metal-organic complexes. In extracts of higher pH, PbCO 3 and free Pb 2+ were dominant. In CaCl 2 , Cu and Zn were mainly present as organic complexes and free Zn 2+ , respectively. In all extracts, 50% of Cd was free Cd 2+ and 50% CdCl + . As pH increased, the proportions of free Pb 2+ and organic complexes decreased while those of inorganic complexes increased. In NaNO 3 , Cd, Cu, and Zn were, respectively, mainly present as free Cd 2+ , organic complexes and free Zn 2+ . Speciation of Pb changed with pH as in NH 4 NO 3 , Similarities were expected between the qualitative composition of the extracts and the soil solution, justifying the use of unbuffered salt solutions, particularly NaNO 3 and CaCl 2 , in the evaluation of soil trace metal availability.
University of Birmingham Radio occultation techniques for probing the ionosphere

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Pressures to Publish: What Effects Do We See?

to the 1950s (Siegel and Baveye, 2010; see also Alex Csiszar in this volume, chapter 1) and today are more widespread than ever. There is virtually no contemporary article that, in analyzing or commenting on issues of research integrity, will fail to suggest that scientists might be increasingly engaging in problematic research practices. At the very least, it is typically argued that scientists may be cynically “salamislicing” their results (i.e., fractioning them to maximize publication output), but multiple other detrimental practices, right up to the most egregious scientific crime of data fabrication, are suggested to represent plausible strategies to “game” a system that imposes increasingly unreasonable productivity expectations (National Academies of Sciences, Engineering, and Medicine, 2017). Such “pressures to publish” might be imposed upon scientists explicitly by their employing institutions but also implicitly, through the institutional use of faulty metrics of publication quantity and quality (figure 8.1). This narrative is logically consistent and plausible, but is it correct? The empirical evidence that is most typically invoked in support of the pressures to publish hypothesis comes from anonymous surveys and qualitative studies that observed a connection between reported pressures to publish and likelihood to observe or indulge in questionable behaviors (De Vries, Anderson, and Martinson, 2006; Davis, RiskeMorris, and Diaz, 2007; van Dalen and Henkens, 2012; Tijdink, Vergouwen, and Smulders, 2013). This evidence, however, has clear limitations. Surveys can valuably inform us about what researchers believe, what they say, and what they think they have experienced, but surveys do not necessarily tell us what actually occurs in the general population of scientists. Moreover, results of surveys and interviews are not easy to compare across studies, making it hard to verify whether the problem of pressures to publish has worsened over time as suggested. 8 Pressures to Publish: What Effects Do We See?
Digital Twins in Simulative Applications: A Taxonomy

With the advances in information technology, the concept of Digital Twins has gained wide attention in both practice and research in recent years. A Digital Twin is a virtual representation of a physical object or system and is connected in a bi-directional way with the physical counterpart. The aim of a Digital Twin is to support all stakeholders during the whole lifecycle of such system or object. One of the core aspects of a Digital Twin is modeling and simulation, which is a well-established process, e.g., in the development of systems. Simulation models can be distinguished on the basis of different dimensions, e.g., on the basis of their time perspective. The existing literature reviews have paid little to no attention to this simulation aspect of a Digital Twin. In order to address this, the authors have developed a taxonomy based on an extended literature review to bridge the aforementioned gap.
Integrated AMP–PAN, TRUEX, and SREX testing. II. Flowsheet testing for separation of radionuclides from actual acidic radioactive waste

Three separation processes for the removal of selected fission products, actinides, and Resource Conservation and Recovery Act metals (mercury and lead) have been integrated successfully and tested using actual acidic radioactive waste at the Idaho National Engineering and Environmental Laboratory (INEEL). The separation processes integrated were ion exchange for 137Cs removal, followed by TRUEX solvent extraction for actinide, Hg, and 99Tc removal, and subsequent SREX solvent extraction for 90Sr and Pb removal. A flowsheet comprising these three processes is being developed at the INEEL to reduce the activity of acidic tank waste to allow disposal, after immobilization, as an NRC Class A LLW. Approximately 1350 mL of actual INEEL tank waste was first processed through an ion exchange column for selective Cs removal. The column was packed with a composite ammonium molybdophosphate–polyacrylonitrile (AMP–PAN) sorbent. The ion-exchange system was operated at 26 bed volumes per hour and was sized at a bed volume of 2 cm3. A 137Cs removal of 99.95% was obtained in the ion exchange system without notable interference from other species. The effluent from the ion-exchange (IX) system was stored and subsequently processed several weeks later through a TRUEX solvent extraction flowsheet to separate actinides, Hg, and 99Tc from the tank waste. The TRUEX flowsheet test was performed utilizing 23 stages of 2.0-cm diameter centrifugal contactors. Removal efficiencies of 99.2%, 94.7%, and 63% were obtained for total alpha, Hg, and 99Tc, respectively. Operational problems such as flooding and/or precipitate formation were not observed during the TRUEX flowsheet test. The raffinate from the TRUEX test was stored and subsequently processed several weeks later through a SREX solvent extraction flowsheet to separate 90Sr and Pb, from the tank waste. The SREX flowsheet test was performed using the same centrifugal contactors used in the TRUEX test after reconfiguration. Approximately 99.997% of the 90Sr and 98% of the Pb were extracted with the SREX flowsheet and recovered in the strip and wash sections. In addition, approximately 93% of the remaining alpha activity was extracted and recovered in the strip section. Operational problems such as flooding and/or precipitation formation were not observed during the SREX test.