Miracle-dz/UniFAR-FTUs huggingface dataset:
Exploration of Various Deep Learning Models for Increased Accuracy in Automatic Polyp Detection

This paper is created to explore deep learning models and algorithms that results in highest accuracy in detecting polyp on colonoscopy images. Previous studies implemented deep learning using convolution neural network (CNN) algorithm in detecting polyp and non-polyp. Other studies used dropout, and data augmentation algorithm but mostly not checking the overfitting, thus, include more than four-layer modelss. Rulei Yu et.al from the Institute of Software, Chinese Academy of Sciences said that transfer learning is better talking about performance or improving the previous used algorithm. Most especially in applying the transfer learning in feature extraction. Series of experiments were conducted with only a minimum of 4 CNN layers applying previous used models and identified the model that produce the highest percentage accuracy of 98% among the other models that apply transfer learning. Further studies could use different optimizer to a different CNN modelsto increase accuracy.
Ratio of the Ion Peak Intensity of Glycated to Non-glycated Hexapeptides from the N-Terminal of Hemoglobin β-Chain Measured by LC-ESI Mass Spectrometry

Liquid chromatography-electrospray ionization mass spectrometry (LC-ESIMS) was used to measure the ratio of the ion peak intensity of the glycated and non-glycated hexapeptides from the amino terminal of hemoglobin (Hb) β-chain to establish an accurate method of measuring glycated hemoglobin (HbA1c). Chemically synthesized glycated and non-glycated hexapeptides were mixed in various ratios, and the mixtures were analyzed by on-line reverse phase LC connected to ESIMS. We found that the ratio of the peak intensity calculated by the equation, 0.5 × peak area of doubly charged ion + 1 × peak area of singly charged ion for each peptide was the most reproducible. The slope of the resulting curves from the equation was nearly equal to 1. This calculation should improve the accuracy of the reference method for HbA1c, proposed by Kobold et al., based on LC/ESIMS analysis of the specific N-terminal residues of the Hb β-chains, which are released by enzymatic cleavage of the intact Hb molecule with endoproteinase Glu-C. The measurement of HbA1c both by the MS method proposed in the present paper and by a conventional HPLC method revealed that the values obtained by HPLC were ca. 20% higher than those obtained by MS.
Service Quality and Service Gap of Autonomous Driving Group Rapid Transit System

Recently, the trend of public transportation has evolved from traditional vehicles to intelligent transportation systems. Among many innovative systems, the development of group rapid transit (GRT) has become increasingly important. This study aims to explore the key acceptance factors for users to adopt GRT through three dimensions: technology, sharing, and experiential marketing (TSE). First, this study identifies variables under each construct of the TSE model through a literature review and interviews with experts, so as to understand what factors of the model impact users’ usage intention and continuous usage intention. Subsequently, through a questionnaire survey, the theoretical model is verified. The participants of the survey were users of GRT, and a total of 306 valid questionnaires were collected. Through structural equation modeling (SEM) analysis, the results indicate that technology does not significantly impact usage intention, as users may not fully understand GRT’s future developments; technology only affects continuous usage intention. Sharing also only influences continuous usage intention. These results show that the adoption of GRT may be gradual and long-term rather than short-term. Finally, experiential marketing has a significant impact on both usage intention and continuous usage intention. This implies that users’ experiences are vital in promoting innovative services, hence service providers should seek to not only improve the service but also enhance users’ trust in and support for the service.
Becoming Artists: Collective Reflection of Personal Experience in Community Theater

The article examines how the participants of a six-week community theater project in Helsinki (2015–16) become socialized into the role of Artist by the professional leaders of the project. One of the main goals of the project was to explore the “joint voice” of the ethnically and socioeconomically diverse group and to make that voice heard in society. Drawing on ethnographic data, the article focuses on a central writing technique that was used to scan the participants’ past experiences and to rewrite them into ingredients of the joint voice. The article argues that the process of socialization involves a comprehensive epistemological transformation that gives rise to changes in the participants’ perception of their experiences. The epistemological structure that regulates the writing activities pertains both to principles of entextualization (i.e., how personal experiences become transformed into textual patterns) and to rules of interpersonal engagement (i.e., how others’ contributions are treated). Thus, it enables the construction of safe and effective channels along which private experiences can flow to the group’s collective discursive space and onward to the public.
Robust NLOS Bias Mitigation for Hybrid RSS-TOA Based Source Localization Under Unknown Transmission Parameters

This letter addresses the problem of source localization in non-line of sight (NLOS) environment using received signal strength (RSS) and time of arrival (TOA) measurements when both transmission time and power are unknown. To mitigate the NLOS bias, a robust weighted least square (RWLS) problem is formulated from original non-convex maximum-likelihood (ML) estimation problem using a set of tight approximations. The RWLS problem is further tightened by a novel convex-hull constraint and is ultimately solved using second-order cone programming (SOCP). Simulation results confirm the optimal performance of the proposed robust method in various network scenarios and also validate its excellence over state-of-art methods.
Case Series of Transcranial Direct Current Stimulation as an Augmentation Strategy for Attention Bias Modification Treatment in Adolescents with Anxiety Disorders

This article presents the results of a case series to assess the feasibility, acceptability, and clinical promise of transcranial Direct Current Stimulation (tDCS) as an augmentation strategy in clinic referred adolescents. Attention Bias Modification Treatment (ABMT) is a computer-based attention-training protocol designed to reduce rapidly deployed attention orienting to threat and thereby reduce anxiety symptom severity. Studies of ABMT reveal overall small to medium effect sizes. Advances in the neural underpinnings of attention to threat and attention-training protocols suggest the potential of tDCS of the dorsolateral prefrontal cortex (dlPFC) as a novel augmentation strategy to enhance ABMT’s efficacy (ABMT + tDCS). However, tDCS has never been tested in a sample of adolescents with anxiety disorders. Six adolescents with a primary anxiety disorder completed all four ABMT + tDCS sessions. Adverse effects were mild and transient. Adolescents and parents independently reported fair to excellent levels of satisfaction. Impairment ratings of the primary anxiety disorder significantly decreased. Further, electrophysiological data recorded via electroencephalography (EEG) suggested decreases in neural resources allocated to threat. These findings support the feasibility, acceptability, and clinical promise of tDCS as an augmentation strategy in adolescents with anxiety disorders, and provide the impetus for further investigation using randomized controlled designs in larger samples.
On Phase Shifting and Diversified Coil-Pitch for Enhanced Multiobjective Winding Design Optimization

In electric rotating machines, the stator winding design plays a crucial role on their overall performance. Novel approaches for winding design optimization, including multilayer configurations, stator shifting, and phase shifting, have been presented in recent studies. Most of them focus on a single strategy, which is generally applied to one winding topology only. In this paper, a unified and generalized methodology is proposed to solve a two-objective constrained winding design optimization problem, which can be applied to polyphase winding configurations with any number of slots per pole. The novelty concerns the combination of the phase shifting concept with an enhanced end-winding connection strategy, enabled by multiple coil pitches. The framework developed allows for the customization of the objective functions and constraints to the characteristics of the study. Two application examples are provided for validation purposes of the methodology, where time-step finite-element analysis simulations of a three-phase squirrel-cage induction motor and a six-phase permanent-magnet synchronous motor were carried out. The proposed methodology is capable of generating novel winding designs that can potentially improve the machine efficiency and reduce the amount of copper in the stator windings.
Antioxidant and acetylcholinesterase inhbition activity from Hymenaea rubriflora Ducke ( Fabaceae ) leaf extract

Hymenaea rubriflora is an endemic and edible plant from tropical weather, especially present in Brazilian flora and have been reported as medicinal plant in ethnobotanical studies. There has been less previous evidence regarding its biological application, therefore, to overcome this problem the present work aimed to evaluate whether the metabolites of Hymenaea rubriflora host antioxidant and antiacetylcholinesterase (AChE) activity. To investigate these activities a whole range of different approaches as phytochemical screening, lipidic peroxidation, DPPH scavenging and total antioxidant capacity, and acetylcholinesterase inhibition assay were used. The analysis found evidence for the presence of different secondary metabolites, among them: phenolic compounds (at 286.02 ± 1.75 GAE/mgDW concentration), flavonoids ( at 23.19 ± 2.38 QE/mg.DW concentration), known as natural antioxidants and highlighted its effectiveness as AChE inhibitor, being able to inhibit AChE activity in 96% on 10 mg/mL. In this study we provide insights of H. rubriflora extract as an alternative antioxidant and AchE inhibitor agent, relevant to the context of neurological disorders and cognitive processes.
Temperature‐Switchable Assembly of Supramolecular Virus–Polymer Complexes

Here a method is presented for the temperature‐switchable assembly of viral particles into large hierarchical complexes. Dual‐functional diblock copolymers consisting of poly(diethyleneglycol methyl ether methacrylate) (poly(DEGMA)) and poly((2‐dimethylamino)ethyl methacrylate) (poly(DMAEMA)) blocks self‐assemble electrostatically with cowpea chlorotic mottle virus (CCMV) particles into micrometer‐sized objects as a function of temperature. The poly(DMAEMA) block carries a positive charge, which can interact electrostatically with the negatively charged outer surface of the CCMV capsid. When the solution temperature is increased above 40 °C, to cross the cloud point temperature (Tcp) of the DEGMA block, the polymer chains collapse on the surface of the virus particle, which makes them partially hydrophobic, and consequently causes the formation of large hierarchical assemblies. Disassembly of the virus–polymer complexes can be induced by reducing the solution temperature below the Tcp, which allows the poly(DEGMA) blocks to rehydrate and free virus particles to be released. The assembly process is fully reversible and can sustain several heating–cooling cycles. Importantly, this method relies on reversible supramolecular interactions and therefore avoids the irreversible covalent modification of the particle surface. This study illustrates the potential of temperature‐responsive polymers for controlled binding and releasing of virus particles.
Role of Alumina Coating on Li−Ni−Co−Mn−O Particles as Positive Electrode Material for Lithium-Ion Batteries

The interface reaction between Al2O3-coated Li[Li0.05Ni0. 4Co0.15Mn0. 4]O2 and liquid electrolyte was investigated. The Al2O3-coated Li[Li0.05Ni0. 4Co0.15Mn0. 4]O2 showed no large difference in the bulk structure, comparing to bare Li[Li0.05Ni0. 4Co0.15Mn0. 4]O2. The coated Al2O3 was found to have an amorphous structure from X-ray diffraction study. A small amount of Al2O3 coating (0.25 wt % in the final composition) showed that a uniform mesoporous Al2O3-coating layer whose thickness is of about 5 nm covers Li[Li0.05Ni0. 4Co0.15Mn0. 4]O2 particles, as confirmed by transmission electron microscopy. At higher concentration (2.5 wt % in the final composition), the irregular tens of nanometer-sized Al2O3 powders were observed on the surface of the active material instead of the uniform coating layer. Despite the insulating nature of Al2O3, the thin coating was effective to improve the battery performances, depending on the thickness of the Al2O3-coating layer, and used electrolytic salt. The Al2O3 coating resulted i.
Modified Modular Multilevel Converter With Third-Order Harmonic Voltage Injection to Reduce Submodule Capacitor Voltage Ripples

This article presents a modified modular multilevel converter (MMC) equipped with the middle-cells and control algorithm for medium voltage applications. It is intended to reduce the submodule (SM) capacitor voltage ripples by the third-order harmonic voltage injection (THVI) and second-order harmonic current injection (SHCI) without the common-mode voltage injected on the ac-side. On the one hand, using the proposed algorithm, the independent power degrees of freedom can be produced to eliminate the dominant fundamental part in arm powers, which can dramatically reduce the SM capacitor voltage ripples. On the other hand, the smaller amplitude of the SHCI can be obtained, which decreases the power losses. Meanwhile, by properly controlling the proposed middle-cells of the modified MMC, the compensated parts can be produced to eliminate the common-mode voltages caused by the THVI. Additionally, the arm power analysis of the modified MMC under different power factors is conducted, and the obtained results are discussed. The mathematical models of the SM capacitor voltages for the half-bridge based SMs and the proposed middle-cells in the modified MMC are also analyzed. Finally, the effectiveness of the theoretical analysis of the modified MMC is verified by simulation and experimental results.
The effect of previous arthroscopic surgery on total knee arthroplasty outcomes and complication rates

Aim: This study aimed to evaluate the effect of previous arthroscopic surgery on total knee arthroplasty outcomes and complication rates. Material and Methods: This retrospective study included patients who underwent total knee arthroplasty due to grade 4 osteoarthritis, according to the Kellgren-Lawrance classification system in a tertiary hospital, between January 2012 and December 2016. The patients were divided into two groups according to whether or not they had undergone previous knee arthroscopy. The arthroscopic procedure included degenerative meniscus tear subtotal excision and synovectomy. The data of the two groups were compared. Outcome measures were the visual analog scale, McMaster Universities Osteoarthritis Index, Knee Society scoring system and knee range of motion. Results: The previous arthroscopy-free group comprised 94 patients (35 males, 59 females), and the previous undergoing arthroscopy group included 73 patients (23 males, 50 females). The mean age of previous arthroscopy-free group was 63.12 ± 2.8 years (range, 57 to 68), and the mean age of previous undergoing arthroscopy group was 62.42 ± 3.9 years (range, 55 to 73). The groups were similar in terms of age, gender, body mass index, follow-up periods, sides, and complications (p > 0.05 for all). In assessments at the end of 4 years, the groups were similar in respect of visual analog scale, McMaster Universities Osteoarthritis Index, Knee Society scoring system and knee range of motion. Conclusions: The results of this study showed that clinical outcomes and complications were similar in patients with primary total knee arthroplasty and no previous procedure and those who had previously undergone knee arthroscopy. In the light of these preliminary results, previous knee arthroscopy has no negative effect on the outcomes of total knee arthroplasty and complication rates.
Preparation and application of sunlight absorbing ultra-black carbon aerogel/graphene oxide membrane for solar steam generation systems

In this study, sunlight absorbing membranes consisting of ultra-black resorcinol–formaldehyde (RF)-based carbon aerogel (CA) and hydrophilic graphene oxide (GO) suspension were fabricated. To investigate the effect of substrate structure, CA/GO ink was cast onto two different layers including 3D modified copper foam (MCF) and 2D paper sheet. The copper foam (CF) was treated with a new and simple modification method to enhance the hydrophilicity. Finally, the solar steam generation performances of the prepared membranes were evaluated. The optical analyses indicated that 2D and 3D samples respectively reflected ∼4.5% and ∼10%, and transmitted ∼0% of the incident light. The water contact angle measurements revealed a significant change in the wettability of the CF layer representing a contact angle of 139.41° before the modification. Based on the water evaporation rates, the efficiencies of 81.1% and 91.4% (at 1 kW m−2) were achieved for 2D and 3D absorbents, respectively. In addition to eliminating the geometrical restrictions of the monolithic absorbents, the results verified that CA/GO ink-based absorbents were promising materials for solar steam generation systems (SSG) due to the high light absorption, superhydrophilicity and porous structure.
Organic solvent dispersion of poly(3,4‐ethylenedioxythiophene) with the use of polymeric ionic liquid

A nonaqueous dispersion of poly(3,4-ethylenedioxythiophene) (PEDOT) was prepared with the use of polymeric ionic liquid (PIL) as a polymerization template and phase transfer medium. A detailed investigation was performed to understand the role of PIL in the course of polymerization and phase transfer reaction. On the basis of our findings from X-ray photoelectric spectroscopy (XPS), we propose a mechanism by which the PIL leads to the nanostructured PEDOT colloids in various organic solvents and thus facilitating smoother surface morphologies of the PEDOT-PIL films. In addition, the enhancement of charge transport was observed for PEDOT-PIL complex when compared with PEDOT without PIL. Raman spectroscopy indicates that there is a reduced interaction between the charge carriers on the PEDOT and the counter ions bound to PIL, thus promoting charge carrier hopping rates.
Young adults in Poland – the coming of age of a generation of responsible food consumers?

Purpose: The aim of the study was to diagnose attitudes and consumption behaviors among 8 the young adults, regarding food consumption in Poland. 9 Design/methodology/approach: 483 respondents took a part in the research. They were 10 students of three Cracovian universities, representing all voivodships in Poland. The research 11 instrument consisted of two types of questions: traditional closed survey questions and a series 12 of projection questions, based on fictional characters, which the respondents had to assess and 13 determine the degree of identification with the attitudes and behaviors described. 14 Findings: The research revealed some akrasia. The relatively high level of awareness regarding 15 the effects of unsustainable production and consumption of young adults did not translate into 16 consumption behavior of a sustainable nature. The curiosity regarding origin of the product and 17 its composition turned out to be low, as was the feeling of responsibility for their own decisions. 18 There was a tendency to expect the transition of responsibility to food producers and the 19 institutional environment. Young adults pay special attention to food prices and easy access to 20 shopping. Local marketplaces are a niche shopping place. The majority of food is purchased in 21 large-area stores, where consumers are not informed about the place of origin of food. 22 The respondents group is characterized by high outside-diagonality, solutions forcing more 23 sustainable behavior, for example, the payment for plastic bags, the need for recycling of waste 24 meet with wide acceptance. 25 Originality/value: The research revealed enforcing proecological behaviors by institutions 26 seems to be a more effective than building consumer awareness. 27
Effect of different concentrations of ba and naa on callus formation from cotyledonary leaf explants of wild Brinjal (Solanum incanum L.)

Different concentrations and combinations of BA and NAA hormones were used in MS medium to observe callus induction from cotyledonary Leaf Explants of Wild Brinjal (Solanum incanum L.) The rate of callus formation varied in different treatments used. Explants were cultured on MS media supplemented with different combinations and BA (0.0 mg/l, 0.5 mg/l, 1.0 mg/l, 1.5 m/l) in combination with NAA (0.2 mg/l, 0.4 mg/l,0.6 mg/l,0.8mg/l) with three replications. BA (1.5mg/l) in combination with NAA (0.2 mg/l) recorded highest result in days for callus initiation, fresh weight of callus and diameter of the callus. The protocol in the study might be useful for the production of disease free and healthy plant materials and also it would be useful for genetic transformation of eggplant using biotechnological approach.
Gaussian 1-2-1 Networks: Capacity Results for mmWave Communications

This paper proposes a new model for wireless relay networks referred to as “1-2-1 network”, where two nodes can communicate only if they point “beams” at each other, otherwise no signal can be exchanged or interference can be generated. This model is motivated by millimeter wave communications where, due to the high path loss, a link between two nodes can exist only if beamforming gain at both sides is established, while in the absence of beamforming gain the signal is received well below the thermal noise floor. The main contributions in this paper include: (a) the development of a constant gap approximation for the unicast and multicast capacities of the proposed network model, i.e., a characterization of the network unicast and multicast capacities to within an additive gap, which only depends on the number of nodes and is independent of the channel coefficients and operating SNR; and (b) the design of algorithms that run in polynomial time in the number of nodes and compute the approximate unicast and multicast capacities, as well as their corresponding optimal beam scheduling strategies. These results are derived both for full-duplex and half-duplex modes of operation at the relays: while in full-duplex the transmit and receive beams at a relay can be simultaneously active, in half-duplex only one can be active at each point in time. The relation between the approximate multicast capacity and minimum unicast capacity is explored in full-duplex 1-2-1 networks and shown to be dependent on the network structure and the number of destinations, unlike in classical wireless (i.e., without 1-2-1 constraints) full-duplex networks. Finally, network simplification results are proved for the 1-2-1 network model by exploiting the structure of the linear program that represents the approximate capacity.