Miracle-dz/UniFAR-FTUs huggingface dataset:
Antioxidant Potential and Antimicrobial Activity of Extracts of Sassurea Taraxacifolia (Astraceae)

The objective of the experiment is to evaluate antioxidant potential and antimicrobial activity of various extracts of Sassurea taraxacifolia. The air dried powdered plant material of Sassurea taraxacifolia was extracted with petroleum ether, ethyl acetate and methanol using Soxhlet’s apparatus and the extracts were concentrated using rotary evaporator. All the extracts were evaluated for total phenolic content, total flavonoid content, total antioxidant capacity, reducing power, ability to scavenge various free radicals and ferrous ion chelation. The antibacterial activity of various extracts was assessed by disc diffusion method. The study revealed presence of phenolics and flavonoids in the all extracts of S. taraxacifolia . The phenolic content was maximum in ethyl acetate extract and lowest in the petroleum ether extract and expressed in terms of gallic acid equivalent ranged from 97 to 389 GAE/g extract. The flavonoid content expressed as rutin equivalent ranged from 51 to 189 RE/g extract. The reducing power of the extract was comparable to rutin. The extract exhibited moderate to potent DPPH radical scavenging activity with EC 50 values ranging from 343.26 to 63. 57µg/mL. ABTS radical cation scavenging ability ranged from 3976.42 to 12645. 89µmol trolox equivalent/g. The extracts also exhibited fair ferrous ion chelating activity. However, extracts exhibited moderate to poor antibacterial activity with methanolic extract showing highest antibacterial activity. The results of the present study revealed the potential antioxidant potential of Sassurea taraxacifolia. The ethyl acetate extract was superior to methanolic and petroleum ether extract in most of the antioxidant assays. In conclusion, ethyl acetate of Sassurea taraxacifolia possesses fair antioxidant activity and moderate antibacterial activity.
Stability Conditions for a Retarded Quasipolynomial and their Applications

— Non-delay real parameter stability and stabilization for a quasipolynomial of a retarded structure is studied in this contribution. In the sense of this paper, quasipolynomials are considered to be over real coefficients and in only one variable. Unlike some other methods and analyses, a non-delay real parameter is being to set in a quasipolynomial with two independent delay terms. Retarded quasipolynomial stability is given by the requirement that all its roots (of an infinite spectrum) are located in the open left-half complex plane. The proposed stabilization methodology is based on the argument principle, i.e. on the Mikhaylov stability criterion. This problem has many applications especially in the control theory since such a quasipolynomial can characterize the dynamics of a closed-loop system with delays. In the presented paper, we introduce two problems connected with stabilization and control of time delay systems. The first one deals with a coprime factorization for algebraic controller design, the second one propose stabilization of an anisochronic model of a high order system. Stability features and application problems are accompanied with simulation examples in the Matlab-Simulink environment.
An [ 18 F]dopa-PET and clinical study of the rate of progression in Parkinson's disease

Summary We have studied disease progression in a group of 10 patients with recent onset idiopathic Parkinson's disease [mean age 53.7±J2.6 years, mean duration J8.3±6.5 months, mean unified Parkinson s disease rating scale (UPDRS) 19.0±9.5], and a group of seven patients with established Parkinson's disease (mean age 60.1 ±15.1 years, mean duration 70.8±35.5 months, mean UPDRS 47.9±18.1), using both clinical assessment and [ l8 F]dopa-PET. Results were compared with those of a group of 10 normal subjects (age 66±16 years). Mean putamen [ l8 F]dopa influx constant (K,) was a reliable measurement (R = 0.82) and the most sensitive The mean annual rate of in in the Parkinson's 12.5% per annum, whereas the group no significant in a of 32 months follow The rate of progression was more rapid in compared the disease but not statistical Assuming a linear progression for the entire group we estimate symptom onset at a putamen K, 79% of normal with a preclinical years.
Tissue Deformation Tracking in Robot-Assisted Nephrectomy

— Dynamical application of active constraints during robot-assisted surgery is key to safer and more precise minimally invasive surgery. In this article, the proposed method dynamically tracks the movement and deformation of the renal veins and arteries in real-time and estimates the distortion based on 2-D tracking and iterative estimation of the 2-D perspective transformation matrix. The proposed method is validated via videos taken from nephrectomy on the da Vinci Research Kit.
A study of hand-movement gestures to substitute for mouse-cursor placement using an inertial sensor

Abstract. This paper examines the new study of hand orientation as a substitute for computer-mouse movement and is evaluated based on ISO/TS 9241 part 411: Ergonomics of human–system interaction-evaluation methods for the design of physical input devices. Two pairs of hand-orientation candidates were evaluated, using, for example, pitch–roll and pitch–yaw to substitute for up–down and left–right mouse-cursor movements. The up–down cursor movement was generated from the pitch orientation, while the left–right cursor movement was generated from the roll or yaw orientation, depending on the evaluation of the proposed gesture. The research employed a standard computer mouse as a baseline comparison for the study. The empirical study was conducted to evaluate quantitative performance such as throughput and movement time. The best impression resulted when the throughput had the greatest value as well as the shortest movement time. The performance test was based on Fitts's law using a multi-directional tapping test as suggested by ISO/TS 9241-411. The test was divided into several levels of difficulty, including high, medium, low, and very low. The other assessment is qualitative and was performed using the comfort-rating scale questionnaire and rating of perceived exertion of comfortability and fatigue. The quantitative results show that pitch–yaw throughput is slightly higher than for the pitch–roll gesture, and that the movement time in pitch–yaw is slightly less than in pitch–roll, although there is no statistically significant difference between the two. We also found that pitch–yaw movements have a higher level of comfort based on the comfort-rating scale test. Since the test was divided into levels of difficulty, we identified those gestures suitable for the task with a low and very low level of difficulty based on throughput, movement time, and error-rate results. Finally, this study suggests that pitch–roll and pitch–yaw movements of the hand can be used as substitutes for the mouse, and that pitch–yaw movements are superior in regard to causing less fatigue than pitch–roll movements. Furthermore, this study provides a new suggestion for a suitable level of difficulty when using an inertial sensor as an emulator for the movement of a mouse cursor in the field of human–computer interaction.
Exploration of Leadership and Motivation in Company

Leadership and motivation are some of the aspects which is very important to achieve the company's vision. This study aims to examine the influence of leadership and motivation on employees’ performance mediated by employees’ job satisfaction. This study involved 30 respondents who were employees of PT Togamas Semesta Abadi Malang. The data in this study were obtained from the results of filling questionnaires. Subsequent research data were analyzed qualitatively and quantitatively with Structural Equation Modelling - Patrial Least Square (SEM-PLS) analysis techniques. Based on the results of the PLS analysis, the results show that leadership has positive and significant effects on job satisfaction, motivation has no significant effects on job satisfaction, job satisfaction has positive and significant effects on performance, leadership has no significant effects on performance, and motivation has positive and significant effects on employees’ performance.
Initial assessment of architectures and hardware resources for a RadioWeaves infrastructure

This deliverable provides an initial assessment of the RadioWeaves infrastructure, developed in WP2 of REINDEER. Taking the description of RadioWeaves in D1.1 and the use cases and KPIs defined therein, as a starting point, a first version of the building blocks of the infrastructure are presented, together with new terminology. Architecture and topology are introduced together with a quantitative and qualitative analysis of high-level requirements on a RadioWeaves infrastructure, setting the scope for more detailed investigations and design.
Inbound and outbound medical travel in Austria

Purpose – The purpose of this paper is twofold: First, it analyzes demand and supply-side factors that influence patient flows to and from Austria. Second, building on the empirical research and existing conceptualizations, the study offers a general extended framework to guide future comparative analysis. Design/methodology/approach – The paper draws on multiple data sources including a literature review, secondary data, website analysis and semi-structured interviews with patients and health providers. Content analysis was carried out to identify common motives for seeking care abroad and providers ’ orientation towards medical travel. Findings – Outbound medical travel is largely determined by factors of access, affordability and vicinity, while inbound medical travel is predominately driven by a lack of adequate medical infrastructure in source countriesandquality,bothintermsofmedicalandservicequality.Providersdistinguishthemselvesaccordingtotheextenttheytakepartinmedicaltravel. Research limitations/implications – The findings emerging from a single country case study approach cannot be generalized across settings and contexts, albeit contributing to a better understanding of current medical travel patterns in Europe. Originality/value – Unlike most recent contributions, this study focuses both on inbound and outbound medical travel in Austria and investigates patient flows for distinctive treatments and drivers. While analysis ofthe supply-side ofmedical travelisoften limitedto tourismstudies,thisstudy providesa criticalinsight into developments in Europe from a health policy perspective, acknowledging that diverse medical travel patterns in Europe coexist.
pressure? The effect of peers on outcomes of

A variety of public campaigns, including the “Just Say No” campaign of the 1980s and 1990s that encouraged teenagers to “Just Say No to Drugs”, are based on the premise that teenagers are very susceptible to peer influences. Despite this, very little is known about the effect of school peers on the long-run outcomes of teenagers. This is primarily due to two factors: the absence of information on peers merged with long-run outcomes of individuals and, equally important, the difficulty of separately identifying the role of peers. This paper uses data on the population of Norway and idiosyncratic variation in cohort composition within schools to examine the role of peer composition in 9 th grade on longer-run outcomes such as IQ scores at age 18, teenage childbearing, post-compulsory schooling educational track, adult labor market status, and earnings. We find that outcomes are influenced by the proportion of females in the grade, and these effects differ for men and women. Other peer variables (average age, average mother’s education) have little impact on the outcomes of teenagers.
Computational mechanisms for colour and lightness constancy

Attributes of colour images have been found which allow colour and lightness constancy to be computed without prior knowledge of the illumination, even in complex scenes with three -dimensional objects and multiple light sources of different colours. The ratio of surface reflectance colour can be immediately determined between any two image points, however distant. It is possible to determine the number of spectrally independent light sources, and to isolate the effect of each. Reflectance edges across which the illumination remains constant can be correctly identified. In a colour image all the pixels of a single surface colour lie in a single structure in flux space. The dimension of the structure equals the number of illumination colours. The reflectance ratio between two regions is determined by the transformation between their structures. Parallel tracing of edge pairs in their respective structures identifies an edge of constant illumination, and gives the lightness ratio of each such edge. Enhanced noise reduction techniques for colour pictures follow from the natural constraints on the flux structures. In a scene illuminated by multiple distant point sources of distinguishalbe colours, the spatial angle between the sources and their brightness ratios can be computed from the image alone. If there are three or more sources then reflectance constancy is immediately possible without use of additional knowledge. The results are an extension of Edwin Land's Retinex algorithm. They account for previously unexplained data such as Gilchrist's
Consumer Animosity

This paper provides an inclusive review of the literature concerning the consequences and antecedents of animosity on consumer purchasing intentions. Consumer animosity has attracted a lot of attention in the international marketing and business literature in previous years and was found to have various effects on consumer behavior as a result of aversion on the foreign products country of origin. The paper reviews the literature that has been conducted on animosity and focuses on certain limitations that are addressed. Suggestions for future research have been also emphasized in the paper.
Remote audit in the times of COVID-19: A successful process safety initiative

Goal: This paper presents a case study in which the practice of Internal Process Safety Audit of the studied company needed to develop a system of remote audits during the COVID-19 pandemic. Design / Methodology / Approach: The system was analyzed in the light of recent theoretical references, having all its phases described, as well as its results and future prospects. Results: The systematic approach involved the development of specific procedures for planning and carrying out audits using a digital platform. The practice was implemented from March 2020 through August 2021. It was approved by the National Agency for Petroleum, Natural Gas and Biofuels (ANP) and is currently used as a reference for other operators in oil and gas exploration and production (E&P) in Brazil. Limitations of the investigation: The choice of a unique case study, restricted to a practice adopted since the beginning of the pandemic, brought some theoretical-methodological limitations. The authors chose to adopt participant observations due to the inclusion of one of the authors in the process of conducting the audits. Practical implications: The main contribution of this study focuses on the results of the critical analyses carried out to find the strengths and opportunities for improvement that could be adopted by organizations that have similar processes. Originality / Value: The added value of this study refers to the scope of the remote audit, as it is about Process Safety. The studies presented so far refer mostly to remote certification audits or maintenance of the quality management system, with emphasis on ISO 9001.
Product Features based Sentiment Analysis from Twitter

— People’s opinions are considered as the most powerful source of market research. Popularly, Social Media has become a tool that is used in an easy way including huge number of users who can share their opinions about products or services and their thoughts about current problems of the society and express their views on political and religious issues. The knowledge extracted from social media contains sentiment data – that is not included in corporate database – that can be used to improve the marketing campaigns to retain customers and meet their needs in a better way. The integration and merging between both social media data and corporate data can lead to better insights that would not have been possible to gain without such integration. In this paper, we will use Twitter as a social media source platform to do a feature based level sentiment analysis using tweets including opinions about a specific product. The research discussed three different ways to extract (feature/opinion) pairs from each text including: Normal Tokenization, N-gram Modeling Extraction, and Noun Chunking Extraction. The extracted opinion phrase related to each extracted feature is being classified using sentiment classification algorithm. A decision is taken about the best between the three ways according to the resulted measurements. SCDJF had been evaluated using multiple techniques. The best results occurred from Noun Chunking Extraction with accuracy 77%. Summarization of the results will show how this can be used to enhance decision making process of the organization. Summarization of the results will show how this can be used to enhance decision making process of the organization.
Design of CMOS High Linear Low Noise Amplifier for Small Satellite Ground Station

: Ground stations are established to provide communication with the satellite. The quality of communication depends on the performance of satellite ground station in addition to that of satellite. If the ground station is implemented in urban areas, intermodulation interferences affect the front end of the ground station. The non-linearity of low noise amplifier (LNA) is disturbed by these intermodulation products. In ground station, linearity is more important factor in the design of LNA. In this paper, LNA is designed at S band using CMOS technology. Modified derivative superposition (MDS) linearization technique is incorporated in LNA. The performance of high linear CMOS LNA is analyzed with the linearization techniques. This linear LNA is designed using 90 nm CMOS technology that provides good IIP3 value of 5 dBm, 17.7 dB gain, 1.1 dB NF and 5.79 mW power consumption.
Mobile application platform selection

Native and web apps have their own advantages and disadvantages in the field of mobile app industry. This fact has forced industry to make reforms and develop new tools and technologies to mitigate the disadvantages by both platform types. Different cross-platform development approaches have lowered the costs of developing apps to multiple different platforms and progressive web apps (PWA) have improved efficiency and user experience for web apps. This thesis strives to clarify the selection, which platform or approach the company should choose for their upcoming app. This is done by finding the properties and requirements found important by shareholders and finding out how capable platform/approach is meeting with the properties.
Consistent Variation in Amino-Acid Substitution Rate, Despite Uniformity of Mutation Rate: Protein Evolution in Mammals Is Not Neutral

Variation in mutation rate, attributed to differences in both generation time and in metabolic rate, has been invoked under the neutral theory of molecular evolution to account for differences in substitution rate among mammalian lineages. We show that substitution rates at fourfold-degenerate sites and at sites in noncoding regions do not vary between the primate and rodent lineages, implying mutation-rate uniformity. In contrast, the substitution rates at nondegenerate sites vary both within and between lineages. This difference in substitution-rate pattern between the two types of site is incompatible with neutral theory but may result from substitutions occurring by fixation of slightly deleterious mutations. Variation in the rate of protein evolution among mammalian lineages appears to be due more to differences in population fixation rates than to biochemical or physiological differences affecting mutation rates. nonneutral mutations, substitution rates may also vary in fixation that are to variation in both effective population size and selection
Outcomes Research in Review S ection e ditorS smoking-Tobacco Control Program Saves Money and price interventions for tobacco control: quantifying the return on investment of a state tobacco control program.

Setting and participants. The Behavioral Risk Factor Surveillance System was used to estimate the state prevalence of adult cigarette smoking from 1990 to 2009, and the National Health Interview Survey was used to estimate national adult smoking trends from 1990 to 2008. The Washington State Comprehensive Hospital Abstract Reporting System was used to obtain data on diagnoses (ICD-9 codes for ischemic heart disease, cerebrovascular disease, and respiratory diseases) and billing for hospitalizations related to smoking-related health outcomes. Cancer diagnoses were obtained from the Washington State Cancer Registry (lung, bronchus, tracheal, lip, oral cavity, pharynx, larynx, and esophageal cancer). The state’s comprehensive tobacco control program was launched in 2000 and included a state-wide media campaign, tobacco quit line, and community and school programs. To study the program’s effect, the authors created an interaction term as a product of the program and year, centered on the year 2000 so that the effect between 1999 and 2000 was 0, and increased incrementally over the subsequent years. The authors created similar interaction terms for smoke-free policy (in the workplace and in public places) and price effects.
The Role of Intravenous Ketamine for Enhanced Recovery after Surgery (ERAS) Protocol for Acute Postoperative Pain Management after Laparoscopic Hysterectomy Pain & Relief

At the ‘ripe age of ﬁ fty years’, Ketamine is still considered a ‘newcomer’ in pain medicine, recommended as one of the modes of multimodal analgesia techniques available after common surgical procedures for pain relief and to reduce the requirement of Morphine in an acute setting after trauma, hence helping early recovery and discharge, perhaps bene ﬁ cial for enhanced recovery. The intention of the review was to evaluate the usefulness of Intravenous (IV) Ketamine in the perioperative period to manage acute postoperative pain, to recommend its inclusion for the ERAS acute pain protocol after laparoscopic hysterectomies. PubMed, Medline, Scopus, Embase, Cochrane, Web of knowledge and Google Scholar were searched with keywords 'Ketamine', 'Intravenous', 'IV', 'acute pain', 'postoperative pain', 'major abdominal surgeries', 'abdominal hysterectomies', limiting to past 10 years and English language. Three major regimens for the use of Ketamine for this purpose were examined individually, the pre-emptive, a bolus with an infusion and as an adjunct to an opioid PCA. Although an attempt was made to segregate the regimens to explore them speci ﬁ cally, there was an overlap of these regimens in some of the studies, making it di ﬃ cult to draw any de ﬁ nitive conclusions. However, of the three major regimens examined, the pre-emptive method appears to have got the maximum number of high level evidence to support this use of IV Ketamine for postoperative pain relief after laparoscopic hysterectomies.
———The Preparation and Characterization of Chitosan

摇 摇 Abstract 摇 "The preparation and characterization of chitosan" was set up as a research鄄oriented comprehensive experiment in the course of Primary Training of Chemical Research in the summer semester of USTC. With the local lobster shell as the raw material, we inquired into the preparation of chitosan after a series of reactions such as deproteinization, desalination, decoloration and deacetylation. The physicochemical properties of chitosan were characterized by FT鄄IR, 1 H鄄NMR, viscosity measurement and titrametry.