Miracle-dz/UniFAR-FTUs huggingface dataset:
OLGA- and OLGIM-Based Staging in the Patients with Gastritis and Endoscopy Indications.

BACKGROUND Gastric cancer is one of the most common cancers with high mortality. In Iran, the high-risk regions include Northern and Northwestern parts. The aim of this study was to assess the operative link on gastritis assessment- and operative link on gastric intestinal metaplasia-based staging in patients with upper gastrointestinal symptoms. METHODS Totally, 345 patients underwent upper gastrointestinal endoscopy. Also, the status of Helicobacter pylori infection was evaluated using rapid urease test and histological method. Moreover, histological changes were assessed using the Update Sydney System. The operative link on gastritis assessment- and operative link on gastric intestinal metaplasia-based stages of 0-II were considered as low-risk stages and stages III and IV were considered as high-risk stages. RESULTS Most of the patients were lower than 60 years (245 patients, 71%), and 71.9% of our patients had H. pylori infection. The frequency of atrophic gastritis and intestinal metaplasia was 44.9% and 25.2%, respectively (P < .001). Eleven patients (73.7%) with gastric adenocarcinoma had a low risk and 2 patients with low-grade dysplasia had a high risk of operative link on gastritis assessment and operative link on gastric intestinal metaplasia. Almost, 62.5% of gastric cancer patients with an intestinal type of gastric adenocarcinoma were at low-risk stages. CONCLUSIONS Although high stages of operative link on gastritis assessment and operative link on gastric intestinal metaplasia need further follow-up, lower stages of atrophy or intestinal metaplasia also require follow-up. Furthermore, operative link on gastritis assessment method in detecting a greater number of patients who need follow-up is more successful and profitable.
A Preliminary Study on Human Resources Management in International Construction

As construction companies continue to exploreforeign construction markets, variousinternational construction projects are beingundertaken in all corners of the world. In aninternational construction project with manyunique and complicated characteristics, humanresource management can playa significant rolein promoting the efficient use of complex humanresources. The aim of this paper is to establish avalid foundation for further research onmeasuring the impact of human resourcemanagement economically for internationalconstruction projects. The paper examineshuman resource management literature andidentifies the application of the relatedmanagement techniques to the constructionindustry. In addition, the paper uses the literatureanalysis to describe the nature of humanresource management with particular referenceto international construction projects. Inparticular, the research described in this paperidentifies economic performance factors in theimplementation human resource management ininternational construction projects. This paperalso identifies the social effects of humanresource management practices.
TOPOLOGY IDENTIFICATION OF COMPLEX DYNAMICAL NETWORK WITH HINDMARSH-ROSE NEURONS

Complex networks, such as transportation and phone networks, Internet, wireless networks and the World Wide Web, play an important role in our life nowa- days. Significant progress has been made in studying complex networks since the discovery of their small-world (1) and scale-free(2) characteristics. Synchronization, as an interesting phenomenon of a population of dynamically interacting units, has received wide attention from different fields. Assuming the topol- ogy of complex network known, many researchers discuss the synchronization problem of complex network and ob- tain a lot of important results. For example, Pecora and Carroll studied the master stability functions for synchro- nized coupled systems(3). Using the theory of inhomo- geneous Markov chains, Wu proposed a synchronization criterion for nonautonomous discrete-time linear system in random directed network (4). Belykh et al. proposed the synchronization of coupled chaotic systems via con- nection graph stability method (5, 6). The topology identification, as an inverse problem, is a significant issue in the study of complex networks. For ex- ample, if a major malfunction occurs in a communication network, power network or the Internet, it is very im- portant to quickly detect the location of the faulty line. Topology identification of complex dynamical networks has received more and more attention from the systems science community. Generally speaking, two methods are used to study the identification problem (7)-(14). One is based on the classic adaptive control. Considering the complex dynamical network with unknown topology as a drive system, some researchers built a response system and adaptive controls to estimate the unknown topology. The other mainly used method consists on solving large scale linear equation. Driving the complex dynamical net- work to an equilibrium state by a control law, the iden- tification problem can be transformed to solve the large
Epizootic assessment of mycobacterium avium spp. Paratuberculosis infections in cattle in Poland in 2011-2020 as a potential etiological factor of Crohn's disease in humans

paratuberculosis (MAP) is a bacterial germ and the etiologic agent in paratuberculosis also known as Johne's disease, a debilitating disease seen in animals. MAP is one of the triggers in the development of Crohn's disease in humans. Therefore the presence of these microorganisms in the environment and their prevalence in farm animals in relation to Crohn's disease is a new area of research. To date, it has not been evaluated in Poland. Material and methods. The materials for this study consisted of 14,468 samples of bovine serum across Poland. Determination of anti-MAP antibody levels was performed using an immunoenzymatic Paratuberculosis Screening Ab Test p/n P07130-5® (IDEXX, Westbrook, Maine 04092, United States). Results. The study consisted of 14,468 samples of bovine serum. Anti-MAP antibodies were identified in 349 cattle sera. Conclusions. Successful paratuberculosis screening programs can lead to a reduction of MAP in animal products. As the role of MAP in Crohn’s disease is not fully understood, future research should be conducted to address this knowledge gap and avoid a potential zoonotic public health problem.
Safety and Immunogenicity of a Shigella Bivalent Conjugate Vaccine (ZF0901) in 3-Month- to 5-Year-Old Children in China

No licensed Shigella vaccine is presently available globally. A double-blinded, randomized, placebo-controlled, age descending phase II clinical trial of a bivalent conjugate vaccine was studied in China. The vaccine ZF0901 consisted of O-specific polysaccharides purified and detoxified from lipopolysaccharide (LPS) of S. flexneri 2a and S. sonnei and covalently bonded to tetanus toxoid. A total of 224, 310, and 434 children, consented by parents or guardians, aged 3 to 6 and 6 to 12 months and 1 to 5 years old, respectively, were injected with half or full doses, with or without adjuvant or control Hib vaccine. There were no serious adverse reactions in all recipients of ZF0901 vaccine independent of age, dosage, number of injections, or the adjuvant status. Thirty days after the last injection, ZF0901 induced robust immune responses with significantly higher levels of type-specific serum antibodies (geometric mean concentrations (GMCs) of IgG anti-LPS) against both serotypes in all age groups compared with the pre-immune or the Hib control (p < 0.0001). Here, we demonstrated that ZF0901 bivalent Shigella conjugate vaccine is safe and immunogenic in infants and young children and is likely suitable for routine immunization.
Business angel investing during the covid-19 economic crisis: evidence from Scotland

ABSTRACT The onset of the coronavirus pandemic in early 2020 quickly gave rise to a concern that the resulting economic uncertainty would produce a collapse in angel investing. In view of the critical role that business angels play in financing the start of the entrepreneurial pipeline, a decline in their investment activity would have a negative effect on the ability of entrepreneurs to start and commence the scaling process which, in turn, would compromise an entrepreneur-led economic recovery from the coronavirus pandemic. This paper draws on two unique data sources on investments made by business angels in Scotland before and since the onset of the pandemic. It shows that business angels continued to invest since the onset of the crisis although their investment activity declined sharply between Q2 and Q3 2020. Investment activity stabilising in Q4 and has significantly increased during 2021 and is now above pre-Covid levels. Angels have increased their emphasis on follow-on investments and in businesses that have raised one or more previous rounds of funding. This highlights a potential problem for entrepreneurs seeking to raise their first round of angel funding that policy-makers need to address.
Joint networking command and control (C2) communications among Distributed Operations, JCAS, and Joint Fires

Abstract : This thesis postulates that the implementation of Mobile Ad Hoc Networking (MANET), Mesh and IEEE 802.16 products can support a Distributed Operations (DO) platoon. Ground and Air assets will use MANET, Mesh and IEEE 802.16 products to network a tactically deployed DO platoon through communications of ground and air based components. These ground and air components will link in an IP-based network and demonstrate the real-time exchange of data. This analysis will focus on the integration of traditional airborne assets with those of a DO platoon. By connecting those Sense, Decide, and Act (SDA) facets into a networked based architecture, the thesis experiments demonstrate that emerging commercial off the shelf (COTS) technologies can further advance data exchange between Service Oriented Architectures (SOA) and enhance the ability to provide Joint Close Air Support (JCAS) to DO platoons in an environment where Air Force, Navy, and Army components are available for fire support. This thesis focuses on the integration of ground and air nodes into a networked based architecture using emerging COTS MANET, Mesh, and IEEE 802.16 technologies to further advance data exchange between simulated ground and air units.
Analysing the role of Industry 4.0 technologies and circular economy practices in improving sustainable performance in Indian manufacturing organisations

Abstract The focus of Industry 4.0 (I4) technologies is to address the issue of scarce resources and improve productivity by providing solutions to economise the use of limited resources and find other substitute raw materials. Circular economy (CE) is also identified as a solution to manage the increasing pressure of environmental regulations, price volatility in resources, and supply uncertainty. However, the relationship between I4 technologies, CE and sustainable performance (SP) is still unexplored and demands a more conceptual and empirical investigation on understanding how the I4 technologies favour the transition towards CE practices and what impact they have together on SP. Based on a survey of 238 manufacturing practitioners from India, the study investigates the mediating and moderating role of CE practices on the relationship between I4 technologies and SP. The findings reveal that developing an environment of CE is not a prerequisite for implementing I4 technologies. However, I4 technologies support developing efficient CE environment, which, leads to the achievement of sustainable organisational goals. Future research directions and implications for practitioners are provided.
A Low-Voltage, Ultra-Low-Power, High-Gain Operational Amplifier Design for Portable Wearable Devices

Based on the SMIC 0.13 um CMOS technology, this paper uses a 0.8 V supply voltage to design a low-voltage, ultra-low-power, high-gain, two-stage, fully differential operational amplifier. Through the simulation analysis, when the supply voltage is 0.8 V, the design circuit meets the ultra-low power consumption and also has the characteristic of high gain. The five-tube, fully differential, and common-source amplifier circuits provide the operational amplifier with high gain and large swing. Unlike the traditional common-mode feedback, this paper uses the output of the common-mode feedback as the bias voltage of the five-tube operational transconductance amplifier load, which reduces the design cost of the circuit; the structure involves self-cascoding composite MOS, which makes the common-mode feedback loop more sensitive. The frequency compensation circuit adopts Miller compensation technology with zero-pole separation, which increases the stability of the circuit. The input of the circuit uses the current mirror. A small reference current is chosen to reduce power consumption. A detailed performance simulation analysis of this operational amplifier circuit is carried out on the Cadence spectre platform. The open-loop gain of this operational amplifier is 74.1 dB, the phase margin is 61°, the output swing is 0.7 V, the common-mode rejection ratio is 109 dB, and the static power consumption is only 11.2 uW.
ZVZCS, dual, two-transistor forward DC-DC converter with peak voltage of Vin/2, high input and high power application

This paper presents a zero voltage and zero current switching (ZVZCS), dual, two-transistor forward converter (DTTFC) for high input voltage and high power application. Two identical two-transistor forward converters (TTFC) are connected in series and coupled through a single transformer using two primary windings, because of which it operates like a full bridge and makes it suitable for high power application. It imposes only half the input voltage across each of the four switches. This DTTFC has advantage of high reliability as compared to the full or half bridge converters. A modified pulse width modulation (PWM) controller is proposed for DTTFC to minimize the circulating RMS current flowing through the transformer and switching devices. This is without any extra hardware in series with primary of the transformer or in secondary. Conduction losses, being proportional to the square of the conducting current in a transformer and MOSFET, are important in high power converters operating at high currents. Since switching losses are also important in high frequency switching application, in DTTFC two switches, out of four switches, are turned-on and off at zero voltage condition due to the current in leakage inductance of a transformer. The remaining two switches are turned-off at zero voltage and turned-on at zero current condition due to transformer leakage inductance and minimized circulating current, over a wide range of load current. The advantages of this simple circuit topology is high efficiency, high reliability, low component count, and low cost, makes the new converter attractive for high input voltage, high power applications. In this paper we discuss the operating states, switching transitions, method of control, experimental results and associated waveforms of a MOSFET based practical 60 V, 50 A, 100 kHz, dual, two-transistor forward DC-DC converter operating at 750 V input bus. The measured efficiency was 95.07% at full load with maximum efficiency of 96.6% at 70% load.
Adaptive Robotic Mechanical Systems: A Design Paradigm

This paper aims at developing a general framework for the use of the concept of adaptive mechanical system in the design of advanced robotic devices. The concept of adaptive mechanical system is first formalized. A design methodology is then proposed in order to formulate the associated design paradigm, based on the fundamental principles of mechanics. Finally, examples of adaptive robotic mechanical systems taken from the literature are presented in order to illustrate the application of the general design methodology.
A wireless smart sensor network for automated monitoring of cable tension

As cables are primary load carrying members in cable-stayed bridges, monitoring the tension forces of the cables provides valuable information regarding structural soundness. Incorporating wireless smart sensors with vibration-based tension estimation methods provides an efficient means of autonomous long-term monitoring of cable tensions. This study develops a wireless cable tension monitoring system using MEMSIC’s Imote2 smart sensors. The monitoring system features autonomous operation, sustainable energy harvesting and power consumption, and remote access using the internet. To obtain the tension force, an in-network data processing strategy associated with the vibration-based tension estimation method is implemented on the Imote2-based sensor network, significantly reducing the wireless data transmission and the power consumption. The proposed monitoring system has been deployed and validated on the Jindo Bridge, a cable-stayed bridge located in South Korea.
Mobile Replica Node Detection & Rejection In WSN Using SPRT

Sensor network deployment is becoming more common place in environmental, business and military applications; security of these networks emerges as a critical concern. Without proper security, it is impossible to completely trust the results reported from sensor networks deployed outside of controlled environments. The replica nodes are controlled by the adversary, but have keying materials that allow them to behave like authorized participants in the network. Protocols for secure sensor network communication would allow replica nodes to create pair wise shared keys with other nodes and the base station, thereby enabling the nodes to encrypt, decrypt and authenticate all of their communications as if they were the original captured node. Sequential Probability Ratio Test (SPRT) uses the fact that an uncompromised mobile node should never move at speed in excess of the systemconfigured maximum speed. The main attack against the SPRT based scheme is when the replica nodes fails to provide signed location and time information for speed measurement. This is overcome by employing a quarantine defense technique to bloc non complaint nodes. Through quarantine analysis, the amount of time during a given time slot, that the replicas can affect the network is very limited. Black hole detection technique can be implemented, thereby enabling the effective detection of static and mobile replica nodes.
Thickness dependence of low-level leakages in thin oxides

The wearout of 4 nm to 13 nm thick oxides fabricated on n-type and p-type substrates was measured. The interface trap densities, flatband voltage shifts, bulk trap densities and low-level leakage currents were measured before and after high-voltage stressing. In oxides that had been stressed at the equivalent electric fields for constant times, the measured flatband voltage shifts, interface trap densities, and bulk trap densities dropped as the oxide thicknesses dropped and were negligible for oxides thinner than 6 nm, while the low-level pre-tunneling leakage currents increased. Both an AC and a DC component to the stress-induced low-level leakages were measured. The DC component to this leakage current increased as the oxide thicknesses decreased. A model based on uniform trap generation throughout the oxide during the high-voltage stresses and tunnel charge/discharge of the traps within approximately 3 nm of either interface after the stresses were removed, has been used to explain and accurately fit all of the thickness dependences of the trap generation and leakage current measurements. The thickness dependent leakage currents will limit oxides to thicknesses greater than about 10 nm for non-volatile memory applications.
The pull-in behavior of electrostatically actuated bistable microstructures

The results of theoretical and experimental investigation of an initially curved clamped–clamped microbeam actuated by a distributed electrostatic force are presented. Reduced-order Galerkin and consistently constructed lumped models of the shallow Euler–Bernoulli arch were built and verified by numerical analysis, and the influence of various parameters on the stability was investigated. Due to the unique combination of generic mechanical and electrostatic nonlinearities, the voltage–deflection characteristic of the device may have two maxima implying the existence of sequential snap-through buckling and pull-in instability and of bistability of the beam. The first critical voltage can be higher or lower than the second one, while the stable deflections are significantly larger than in a straight beam. The minimal initial elevation required for the appearance of the snap-through in the electrostatically actuated beam is smaller than in the case of uniform deflection-independent loading; a closed-form approximation of this elevation was evaluated. The devices were fabricated from silicon on insulator (SOI) wafer using deep reactive ion etching and in-plane responses were characterized by means of optical and scanning electron microscopy. Model results obtained for the actual dimensions of the device were in good agreement with the experimental data.
Priming-induced alterations in histone modifications modulate transcriptional responses in soybean under salt stress.

Plants that have experienced certain abiotic stress may gain tolerance to a similar stress in subsequent exposure. This phenomenon, called priming, was observed here in soybean (Glycine max) seedlings exposed to salt stress. Time-course transcriptomic profiles revealed distinctively different transcriptional responses in the primed seedlings from those in the non-primed seedlings under high salinity stress, indicating a stress response strategy of repressing unhelpful biotic stress responses and focusing on the promotion of those responses important for salt tolerance. To identify histone marks altered by the priming salinity treatment, a genome-wide profiling of Histone 3 Lysine 4 dimethylation (H3K4me2), Histone 3 Lysine 4 trimethylation (H3K4me3), and Histone 3 Lysine 9 acetylation (H3K9ac) was performed. Our integrative analyses revealed that priming induced drastic alterations in these histone marks, which coordinately modified stress response, ion homeostasis and cell wall modification. Furthermore, transcriptional network analyses unveiled epigenetically modified networks which mediate the strategic downregulation of defense responses. Altering the histone acetylation status using a chemical inhibitor could elicit the priming-like transcriptional responses in non-primed seedlings, confirming the importance of histone marks in forming the priming response.
Design and Experiment of Electromagnetically Induced Acoustic Emission for Metal Crack Detection

A new electromagnetically induced acoustic emission technique (EMAE) is presented in this paper. It does nondestructive detection with the effect of dynamic electromagnetic loading to generate a stress field stimulating stress waves from the defects. Theoretical analysis and experiment of the EMAE is carried out. The large pulse current generator which is used in electromagnetically induced acoustic emission (EMAE) is designed based on the energy storage of the capacitor. Applying to the EMAE experiment, it can achieve the expected effect and locate the defect in the aluminium plate. This work laid a good foundation for the engineering application of EMAE.