Miracle-dz/UniFAR-FTUs huggingface dataset:
Tunneling spectroscopy on compensating surface defects induced by Si doping of molecular‐beam epitaxially grown GaAs(001)

The compensating defects on the GaAs(001)‐(2×4)/c(2×8) surface that are induced by Si doping have been studied by spatially resolved tunneling spectroscopy. Previous scanning tunneling microscopy studies have shown that as the Si doping level of molecular‐beam epitaxially grown GaAs is increased, an increasing number of kinks form in the dimer‐vacancy rows of the (2×4)/c(2×8) surface reconstruction. These kinks are believed to act as surface acceptors and result in pinning of the surface Fermi level. In this work, both voltage dependent imaging and spectroscopy show that negative charge is located at the kink sites. This confirms that they are surface acceptors. The spectroscopy is consistent with each acceptor being occupied by one electron. The surface Fermi level is found to be pinned near midgap. While no peak in the state density centered on the Fermi level is observed, gap states in the form of tails extending in from the band edges are observed near some kinks.
Preparation and characterization of TiO2/ZnO/CuO nanocomposite and application for phenol removal from wastewaters

AbstractThe TiO2/ZnO/CuO nanocomposite is prepared using mechanical mixing and wet impregnation under low-temperature conditions and characterized by scanning electron microscopy. The results indicate that the TiO2/ZnO/CuO nanocomposite exhibits an appreciable photo-catalytic activity, which can mainly be attributed to the extended photo-responding range and the increased charge separation rate. Phenol removal is also measured as a function of irradiation time by using UV–vis spectrophotometer. The results show that phenol removal takes place more effectively in the presence of the nanocomposite under solar irradiation in comparison with UV irradiation. The influence of several parameters has investigated on the photo-catalytic removal of phenol such as pH and various synthesis techniques. The results show that the degradation rate decreases by increasing the pH value. The highest degradation rate is observed at 100 min after the beginning of the reaction and wet impregnation is proved to be more effectiv.
Overview of Helicobacter pylori Detection Using Rapid Urease Test and Giemsa Modification Staining in Chronic Tonsillitis Patients

BACKGROUND: Helicobacter pylori (H. pylori) is a Gram-negative bacteria and has been known for its role in causing gastric infection aused diseases such as gastric ulcer. H. pylori also implied to play a role in chronic tonsillitis, but this theory remains controversial. Many researches have different and contradictory results due to difficulty to accurately detect H. pylori in tonsillar tissue. There is still no appropriate method that able to detect H. pylori in tonsil tissue. AIM: The aim of the study was to detect H. pylori colonization in chronic tonsillitis and understand some of the methods of examination that can be done to detect H. pylori in tonsillar tissue. METHODS: This study is a descriptive study conducted on 25 respondents. Each sample was taken from patients with chronic tonsillitis who underwent tonsillectomy. Then, the rapid urease test (RUT) and the Giemsa modification staining were carried out to determine the presence of H. pylori. RESULTS: There were 19 people (76%) positive and 6 people (24%) negative for H. pylori using RUT. On examination with Giemsa modification staining obtained 19 people (76%) positive and 6 people (24%) negative for H. pylori. CONCLUSION: H. pylori can be found in most of chronic tonsillitis. Combination RUT and Giemsa modification staining examination can be a good option in detecting H. pylori in chronic tonsillitis.
EXPLORING THE COLLABORATIVE CONSUMPTION JOURNEY: THE CASE OF ACCESS-BASED CONSUMPTION

This study explores the collaborative consumption journey in purchase funnel, covering both the pre-accommodation and during/post-accommodation stages, and extends knowledge toward the intersection of customer experience and the field of shared economics. Firstly, we identify all potential touchpoints in multiple stages of the collaborative consumption journey through in-depth interviews and then we investigate experiential dimensions of the collaborative consumption journey by means of a qualitative study and the prioritization of dimensions of customer experience through the Analytical Hierarchical Process methodology by analysing two different types of access-based consumption: the renting platform Airbnb and the lending platform Couchsurfing. Touchpoints were framed under four groups: (a) brand-owned, (b) partner-owned, (c) customer-owned and (d) social/external. The results demonstrate that sensory, affective and cognitive dominant experiences act as the primary roles for both collaborative consumption platforms in the pre-accommodation stage, whereas the collaborative consumption experience is enriched with distinct experiences in the during/post-accommodation stage. The cognitive experience is relatively more important for Airbnb, while sensory experience plays
Parkinsonism and D-512, dopamine D2/3 receptor agonist; A review of literature

In 1817, James Parkinson first coined the term Paralysis Agitans (An Essay on the Shaking Palsy), Jean-Marie Charcot was the first to coin term Parkinson’s disease (PD). Three most common and obvious symptoms in patients with PD are tremor, rigidity, and bradykinesia. A multidisciplinary team involving neurologists, primary care practitioners, nurses, physical therapists, social workers is used to diagnose PD. Nonpharmacological and pharmacological treatment is given to the patient. However, this disease demands more clinical translational and prognostic research, identifying biomarkers that can help in early diagnosis of the disease and on developing future disease-modifying interventions.
Π-CAPM: An Asset Pricing Model with Probability Weighting

We study the asset pricing implications of probability weighting—the idea that investors overweight rare, high impact events—by generalizing the mean-variance framework to allow for tail overweighting. Our model allows for a unique and homogenous pricing equilibrium with multiple investors and several correlated assets. We find that even a symmetric probability distortion has asymmetric pricing implications. For example, while the price of a left-skewed asset increases in skewness and decreases in variance, the price of a right-skewed asset may not. We also obtain and empirically validate several novel implications on the option-implied premiums on variance, skewness, and correlation.
Stable pentaammineruthenium(III) complexes of reductic acids: synthesis, linkage isomers, and autoxidation kinetics

Preparation de complexes ammino d'ascorbate ou de tetramethylreductate. Spectres UV-visible et RMN. Etude par voltammetrie cyclique. La vitesse d'autoxydation des complexes reductate a pH 7 et a 25°C est du 1er ordre
Accounting, analysis and auditing integration as tools for effective company liability management

The article reviews the issues of effective management of the accounts payable, which financial stability and stability of the company depend on the state of the company, which is extremely important for business at the moment. Based on the analysis of scientific works of domestic and foreign scientists-specialists in the field of accounting, auditing and analysis, existing practice of company liability accounting, auditing and analysis organization, recommendations for effective management of accounts payable are developed and summarized. Recommend to make well-known coefficient analysis of the turnover of working capital, including for the management of accounts payable, which allows you to identify the weaker aspects of debt management practices. Foreign practice of company liability accounting, auditing and analysis is introduced. Examples of inefficient liability management in South African companies are given. The procedure for accounting of debts for which limitation period has expired and which has tax consequences, is briefly reviewed. Concluded that the majority of Kazakhstani companies carry out their activities at the expense of borrowed funds, since the share of their own funds in the capital is very low. When dealing with any contractors, it is important to remember that the business should bring benefit to both sides of transaction. The integration of accounting, analysis, and auditing of the company’s liabilities contributes to compliance with this simple rule. Key words: liabilities, payables, accounting, audit and analysis system, accounts payable management, financial stability, solvency, borrowed capital, integration.
Consumers’ Healthy Lifestyle: Does It Matter For The Consumption Pattern Of Healthy Food?

Unhealthy food consumption has been linked to the risk of many diseases such as non-communicable disease and obesity. The objective of this paper is to identify the influencing factors that determine the consumption patterns of healthy food among academician in the northern part of Malaysia and its causal relationships using a theoretical model based on the Stimuli’s organism response theory. A quantitative research design approach was selected where the questionnaire was formulated for primary data collection Data were collected from 360 respondents in Malaysia by using systematic random sampling and subjected to Smart PLS analysis. The proposed model fits the data well by having good validity and reliability. The results revealed that the consumer healthy lifestyle fully mediated the relationship between promotion, place and the consumption pattern of healthy food. Finally, implications and recommendations of these findings are discussed.
Molecular recognition solvents for electrically conductive polyaniline

Due to its semirigid nature, electrically conductive polyaniline (PANI) has long been regarded as an intractable material, i.e. infusible and poorly soluble in organic compounds. Among the rare exceptions is camphorsulfonic acid (CSA) doped PANI, which exhibits good solubility in m-cresol, whereas for other sulfonic acid dopants (e.g. dodecylbenzenesulfonic acid (DBSA)) the solubility in common solvents is poor. We report exceptionally high solubility of fully DBSA and CSA protonated PANI in a crystalline compound, 1,3-dihydroxybenzene, i.e. resorcinol. Up to 20−30 wt % of PANI(DBSA)0.5 and PANI(CSA)0.5 can be dissolved in resorcinol at 200−220 °C to form particle-free films as observed by optical microscopy. High PANI complex concentrations require high temperatures for dissolution, suggesting UCST behavior with a high critical temperature. Optical microscopy, calorimetry, and X-ray analysis suggest that the solution initially is amorphous. With time, crystallinity develops within the sample, due to part.
Molecular Dynamics Simulation Study of the Liquid Crystal Phase in a Small Mesogene Cluster (5CB)22

The molecular dynamics (MD) technique was used to investigate the nano droplet composed of twenty mesogene molecules 4-cyano-4-n-pentylbiphenyl (5CB). The 5CB molecules were treated as rigid bodies, the intermolecular interaction was taken to be the full site-site pairwise additive Lennard-Jones (LJ) potential plus a Coulomb interaction. The radial distribution functions in the temperature range from 150 to 400 K, were calculated as well as the linear and angular velocity autocorrelation functions. In addition the total dipole moment autocorrelation function and dielectric loss of (5CB)22 mesogene cluster were calculated and the liquid crystal ordering in the nanoscale system was studied up to its vaporization temperature.
The Danger of Developing Then Dashing Expectations: The Lesson from Lehman?

In the economy expectations exercise enormous effects. Indeed, in finance prices and yields predominantly reflect current expectations about future cash flows and future interest rates. Change those expectations, prices and yields change as well. Change expectations radically enough, the change in prices and yields may be large enough to impact financial markets and the economy at large. The failure of Lehman in September 2008 is a case in point. Prior to its bankruptcy on 15 September 15, 2008, the economy was treading water. Thereafter it sank like a stone, until the massive stimulus programs put in place by governments and central banks began to pull the economy up again.This paper suggests that what made the Great Recession great was the entry of Lehman into bankruptcy. This suddenly swung market expectations concerning government policy from “too big to fail” to “let the chips fall where they may”. Following Lehman’s declaration of bankruptcy, panic ensued, as market participants rushed to adjust to the new situation. This set off a downward debt-deflation spiral that caused the world economy contract rapidly. Only massive monetary and fiscal stimulus, together with explicit government support to systemically important financial institutions (SIFIs) arrested the decline and turned what might have become the Great(er) Depression into the Great Recession. This weakened economies around the world, leading to further crises and changing the political landscape.In concept therefore, allowing implicit guarantees such as “too big to fail” to develop generates not only moral hazard but also creates what might be called public hazard. This is the risk to financial stability and the economy at large, if the government fails to fulfil the implicit guarantee, when called upon to do so. This is a lesson that governments would do well to bear in mind as they wrestle with how to taper off the massive support that they are currently giving to firms and individuals to enable them to offset the economic consequences of COVID-19.
Study of blood and pubic hair mineralograms of alcoholic people

The quantification of minerals present in the blood and pubic hair of alcoholic people is of paramount importance, since the excessive consumption of liquor over several years can cause an imbalance of minerals. In this sense, the present study sought to compare the mineralograms of pubic hair and blood of alcoholic and non-alcoholic persons. After making the opening of the samples, the concentrations of minerals were obtained by Atomic Emission Spectroscopy with Inductively Coupled Plasma (ICP-MS). Statistical analysis was performed in 5.0 BioEstat. Statistical differences were considered at p ≤ 0.05. The results show that there was a significant increase in concentrations of iron, manganese and copper in the pubic hair of alcoholics compared to the control group. The average concentration in mg L-1 Fe, Mn and Cu found in the pubic hair of group A were respectively: 83.8 (p = 0.029); 2.894 (p = 0.021) and 9.6 (p = 0.0144). These data show that ingestion of liquor contaminated with copper and the metabolism of alcohol itself are compromising the balance of minerals in the body of those patients and may lead to premature aging. Keywords: Rum, alcohol, hair analysis, biological materials.
Canataxpyran A, a novel 3,8-secotaxane with a 13,17-ether bridge from needles of Taxus canadensis

Abstract A novel 6/12-membered bicyclic taxane with a 13,17-ether bridge, named canataxpyran A, was isolated from the needles of Taxus canadensis. The structures were characterized as 7β,9,10β,20-tetracetoxy-13β,17-epoxy-3,8-secotaxa-3E,8E,11-triene-2α,5α-diol (designated as canataxpyran A, 1). This bicyclic taxane gradually decomposed in CDCl3to give the corresponding enones, 10β,20-diacetoxy-13β,17-epoxy-4α,5α-dihydroxy-3,8-secotaxa-2E,7E,11-trien-9-one (canataxpyran B, 2) and 5α,10β,20-triacetoxy-13β,17-epoxy-4α-hydroxy- 3,8-secotaxa-2E,7E,11-trien-9-one (canataxpyran C, 3). Compound 1 is the first example of a natural 3,8-secotaxane with 13,17-oxygen bridge.
Microwave Irradiation Reactions:: Synthesis of Analgesic Drugs

Over-the-counter analgesics such as aspirin, acetanilide, phenacetin, and acetaminophen are conveniently prepared in a microwave at 30% power for five minutes. Recrystallization from appropriate solvents results in solid products in good to excellent yields. Melting points, thin layer chromatography, and infrared spectroscopy all confirm that the products are pure.
Determinants of Hedge Fund Investment in Corporate Endgames

Under German law the corporate endgame process of obtaining full control over a company offers multiple investment opportunities for investors with high investment flexibility, and is therefore particularly attractive to hedge funds. This paper investigates the determinants of hedge fund investment in corporate endgame processes based on a sample of 76 endgame situations of publicly listed German companies and investment data of 326 hedge funds. Examining characteristics of investment targets, we find that hedge funds invest in companies with a non-dominant majority owner and high stake of index funds as latter’s inability to react in change of control situations creates a supportive investment environment for hedge funds. Hedge funds are most likely to invest after takeover consummation and before announcement of a new endgame transaction. Investigating the determinants of ongoing engagement after initial investment, we find that the presence of other institutional investors, especially hedge funds positively affects engagement likelihood, serving as a validation of the own investment approach. Abnormal performance and trading liquidity of target stock also positively affect hedge funds’ engagement. The results indicate that the endgame process in Germany is an attractive investment opportunity for hedge funds, while hedge fund involvement also adds complexity to the corporate control process.
Synthesis of Size-Tunable Polymer-Protected Gold Nanoparticles by Femtosecond Laser-Based Ablation and Seed Growth

A femtosecond laser-assisted method has been developed to produce stable, size-tunable (3 to ∼80 nm) and low dispersed gold nanoparticles. The method implies the formation of initial nanosized seeds (<10 nm) by laser ablation from a gold target in aqueous solutions of biopolymers. Those seeds are then irradiated by a femtosecond laser-induced white-light supercontinuum to initiate a controlled growth of larger nanoparticles. The use of biopolymers (chitosan, α,ω-dithiol poly(N-isopropylacrylamide), poly(ethylene glycol), and dextran) of different concentrations enables in situ surface functionalization and size control during the process. We discuss mechanisms of nanoparticle growth and demonstrate an example of their application in biosensing, using a model of nanoparticle aggregation via specific binding of the gold−dextran bioconjugate to concanavalin A.
MODELING OF DRUG DISSOLUTION KINETICS WITH SIGMOIDAL BEHAVIOR FROM ORDERED MESOPOROUS SILICA

Several models available in the literature for modeling drug release were used to describe experimental data on indomethacin dissolution from ordered mesoporous silica MCM-41 and SBA-15. Sigmoid-shape behavior observed experimentally was successfully explained by a drug release model, which relies on the concentration-dependent drug release constant. Physical reasons for such dependence are discussed. This simple model containing just two adjustable parameters could be used for treating dissolution data with sigmoid behavior.
The Relationship between Transformational Leadership, Organizational Commitment, Work Stress, and Turnover Intentions of Nurse at Private Hospital in Indonesia

AIM: This study aimed to examine the relationship between transformational leadership, organizational commitment, work stress, and turnover intentions of Nurse at Private Hospital in Indonesia. METHODS: A quantitative cross-sectional research design was adopted, consist of 97 Nurses. This study used a Confirmatory Factor Analysis, Structural Equation Modeling using PLS-SEM approach to analyze the data. RESULTS: The results showed that there is a positive influence on transformational leadership on organizational commitment. The better transformational leadership, the higher the organizational commitment of nurses. There is a negative influence on transformational leadership on work stress. The better transformational leadership, the lower the work stress of nurses. There is a negative influence on organizational commitment to turnover intentions. The higher the nurse’s organizational commitment, the lower the nurse turnover intention. There is a positive influence on work stress to turnover intentions. The higher the nurse’s work stress, the higher the the nurse turnover intention. Another outcome discovered was that indirect influence of leadership through commitment and work stress is greater than direct influence, transformational leadership directly influenced organization commitment, and work stress but was not significantly related to turnover intentions. CONCLUSION: Researcher suggests that leadership roles in building commitment and helping to manage the work stress of nurses are needed.
Neutron Reflectivity Study on the Postpolymerization Modification of Poly(2-hydroxyethyl methacrylate) Brushes

Postpolymerization modification reactions are widely employed to prepare functional polymer brushes. Relatively little is known, however, about the distribution of functional groups in such postmodified brushes. Using neutron reflectometry and UV-vis spectroscopy as principal tools, this article investigates the p-nitrophenyl chloroformate (NPC)-mediated postpolymerization modification of poly(2-hydroxyethyl methacrylate) (PHEMA) brushes, prepared via surface-initiated atom transfer radical polymerization, with D-10 leucine and D-3 serine. The neutron reflectometry experiments indicate that the postpolymerization modification depends both on brush thickness and grafting density. Whereas for dense brushes, postpolymerization modification with D-10 leucine is limited to the top similar to 200 angstrom of the brush, independently of the brush thickness, the extent of postmodification can be significantly enhanced by decreasing the grafting density of the brush or by using the more hydrophilic and sterically less demanding D-3 serine, which reflects the ability of this amino acid to more readily penetrate the brush. UV-vis experiments revealed that the NPC activation is also nonuniform, but brush thickness and grafting density dependent, which adds to brush thickness and density and the nature of the amino acid as another of a complex set of variables that determine the final distribution of functional groups in postmodified brushes.
[Understanding and use of the front-of-pack Guideline Daily Amounts nutritional labeling of industrialized food and beverages in Mexico.]

OBJECTIVE Evaluate the use, subjective and objective under-standing of the GDA frontal labeling to assist the population towards making healthy decisions regarding the products they consume. MATERIALS AND METHODS The use of nu-tritional information contained in products ́ packages (GDA, nutritional information table, and list of ingredients), as well as the subjective and objective comprehension of the GDA. RESULTS A total of 43 157 people were interviewed. Amid the labels, the nutritional table was read more frequently (11.1%). 24.6% (IC95%: 23.9-25.3) and 41.2% (IC95%: 40.4-42.1) of the interviewees classified products correctly as not healthy and high in sodium, respectively. These outcomes were smaller between the elderly, lower socioeconomic levels, lower educational levels, and rural areas. CONCLUSIONS The results show that the GDA labeling is not useful to support the vulnerable population to make healthy decisions.