Miracle-dz/UniFAR-FTUs huggingface dataset:
Potential of Fluoride-Containing Zinc Oxide and Copper Oxide Nanocomposites on Dentin Bonding Ability

Despite recent advances in bonding restorations, which are the basis of restorative dentistry, secondary caries are still able to form. Previously, a novel fluoride-containing zinc and copper (ZCF) nanocomposite was introduced to prevent the formation of caries due to its antibacterial activity. In this study, we studied the impact of ZCF nanoparticles on the adhesive strength of bonding restorations through micro-tensile bond strength (µTBS) testing. The impact of antibacterial and matrix metalloproteinase (MMP) inhibitors on the nanoparticles was also examined. The nanocomposites were prepared using a simple one-step homogeneous co-precipitation method at a low temperature. A self-etch adhesive was applied to 10 extracted caries-free human molars with (test group) and without (control group) the ZCF nanoparticles. This was followed by composite resin build-up and µTBS testing, MMP activity assays, and evaluation of the antibacterial effects. The results showed no significant differences in the µTBS between the ZCF and the control groups. However, the ZCF exhibited a significant inhibitory effect against MMP-2, MMP-8, and MMP-9, in addition to an antibacterial effect on Streptococcus mutans. Therefore, the present study demonstrated that the addition of ZCF nanoparticles to adhesive systems can result in MMP inhibition and antibacterial action while maintaining the mechanical properties of the bonding restorations.
Guns and lightning: Power law distributions in intrastate conflict intensity dynamics

The discovery of power laws in conflict intensities has spurred numerous explanation attempts. Two different interpretations have persisted: the notion that power laws are spurious results of random processes and the opposing view that power-law distributions attest to endogenous dynamics linked to self-organized criticality (SOC). We substantiate the SOC forest-fire model for intrastate conflicts, conceptualizing conflict potential as social pressure, measured by horizontal inequality. This potential is triggered by infinitesimal events. Their occurrence depends on the interaction density between conflict actors, operationalized as the conjunction of state capacity and non-state governance. In a global analysis of 143 conflict dyads, we find that 40 conform to a power law and 33 to a stretched exponential distribution, the two outcomes predicted by the model. We find evidence that the forest-fire model is a plausible approximation of the dynamics of intrastate conflicts, accounting for both the conformity and the non-conformity to power laws.
How can a project management methodology enhance project success in an IT division? A case study

Due to its diversity, IT project can be hard to manage. Reports show that only a third of IT projects are delivered successfully. This thesis focus on an IT division in an international logistics company which suffers from bad project performance, and due to this, has started to implement a project management methodology to cope with their issues. The purpose of the thesis has been to investigate how a PMM can enhance project success in an IT division. In order to do so the concept around project quality and project success and how it is interpreted at the case company had to be studied, as well as investigating the importance of standardized processes when using a PMM. How PMO affect the implementation and usage of a PMM has also been examined. A theoretical and empirical investigation of what positive effects a PMM can have on an organization has been conducted together with the identification of barriers that may hinder the implementation and usage of a PMM and its possible benefits. The research is a case study at the international logistics company, using an abductive research approach and qualitative research strategy with interviews and observations being conducted at the case company. A theoretical section is examining IT projects, project quality, project success, project management methodologies, benefits and barriers of PMMs, project management and processes and project management office to get an understanding about the subjects. By analyzing and discussing the theory and empirical findings the research questions can be answered concluding that a PMM can enhance project success if it is maintained and used consistently over the organization. A common view of project success need to defined in each project in order to being measurable. Seven barriers for achieving the possible benefits of a PMM are identified and the company need to be aware of them in order to implement and use the PMM successfully.
Influence of the Step Elevation on Blasting Seismic Wave

Elevation effect is an important content of the research on propagation law of blasting seismic wave. Based on the numerical simulation and theoretical analysis, the inducement and characteristics of elevation effect are revealed. The results indicate that vibration amplification effect is induced in a certain elevation. The amplification factor doesn’t increase monotonously. Amplification and attenuation effects on blasting vibration velocity exist simultaneously. According to the data analysis and theoretical analysis, a prediction model of vibration velocity on step topography is put forward.
Diagnosis of the production cycle in the small shaft sinking

Shaft sinking is a classic activity in underground mines. In shafts with small cross-section or in mines with low mechanization indices it is common to use hand pneumatic drills and blasting by explosive gelatin in cartridges, employing natural draft or flexible ducts with axial fans for gases and fumes exhaustion, muck removal by hand shoveling into hoistable dumping buckets. System of this type has been studied here, consisting of a rectangular cross-section shaft (3.7 m x 2.0 m), with final depth of 94 m, excavated in order to obtain samples for a pilot-scale mineral processing testwork, before the open pit mine’s industrial startup. The shaft had a concrete collar and its walls were supported by wooden sets spaced 1.5 m and 25 mm thick wooden planks as liners. This shaft has been excavated in schist rocks belonging to the metamorphosed hydrothermal deposit of copper and gold located in Chapada (municipality of Mara Rosa, Brazil). Daily production worksheets covering one month campaign were statistically analyzed, encompassing the entire cycle of mining operations, namely drilling, charging and blasting, fumes exhaustion, mucking, wall and face trimming and scaling, and assemblage of support system. Operation downtimes were also quantified. Statistical analysis of productivity indices allowed the detection of critical points of the operation and the establishment reference for similar mining operations.
The expanding mission of workflow technology

As workflow and groupware become more firmly rooted in organisations, the range of uses and value to organisations will increase. Workflow has the potential to move beyond its original boundaries as a vehicle for automating work and implementing business process re-rengineering (BPR) process. The AA. point out three possible directions of workflow management systems for the future : more comprehensive and sophisticated automation in production-oriented systems, more sophisticated analysis of the information produced by work processes and, finally, the development of sophisticated knowledge management capabilities
Removal of Methylene Blue from Aqueous Solution Using Black Tea Wastes: Used as Efficient Adsorbent

The biosorbent black tea wastes (BTW) after preliminary treatments was used in this study for the removal of methylene blue (M.B) from aqueous solution. The removal of M.B from aqueous solution was studied as a function of time, initial concentration of M.B temperature, pH, and BTW dosage. The optimum time for equilibration was achieved in 3 min. The optimum dosage of adsorbent was found to be 0.4 g. Various kinetic models were applied to the sorption kinetic data in which the obtained data was best explained by the pseudo-second-order model ( R 2 = 0.99 ) with a rate constant K2 of 0.0714–0.0763 g.mg-1 min-1. Additionally, the calculated amount of adsorption was approximately equal to the experimentally determined value. The isotherm data was best fitted to the Langmuir model rather than the Freundlich model. The intraparticle diffusion model exhibited the process to be diffusion dependent. The various organic functional groups on the surface of BTW played a significant role in the sorption of the selected dye. Consequently, BTW has the prospective to act as a potential sorbent for the removal of other contaminants from aquatic media as well.
Corrected: Intestinal Perforation as a Paradoxical Reaction to Tuberculosis

Paradoxical reactions (PR) to tuberculosis (TB) treatments are characterized by an initial improvement of the clinical symptoms followed by a clinical or radiological deterioration of existing TB lesions or by the development of new lesions. PR in the gastrointestinal system is a rare phenomenon. Moreover, intestinal perforation is an uncommon but potentially fatal complication of intestinal TB. We report the case of a 29-year-old female who presented with fever and abdominal pain that was associated with watery diarrhea. She was diagnosed as a case of intestinal TB. During her stay, she developed intestinal perforation following the initiation of anti-TB treatment. She was eventually managed as a case of intestinal perforation as a PR to TB. 2 of 92% on room air. A chest examination revealed scattered crepitation on auscultation; she denied coughing or shortness of breath. The rest of the systemic examination was unremarkable. Her initial blood test showed
Ku-band Transition with not Metalized Air-Vias between Microstrip Line and Substrate Integrated Waveguide

In this letter, a new transition between microstrip line and substrate integrated waveguide in Ku-band frequency is proposed. This transition composed of one row of not metallized air-vias drilled on both sides of the microstrip line with taper end. The electromagnetic analysis is carried out using a commercial software tool. The presented transition achieves return losses better than 41 dB in Ku-band frequency (12.4-18GHz). In order to validate the simulated results of the proposed concept, a back-to-back transition prototype is designed, fabricated and measured. The measured results demonstrate a minimum return loss of 29.05 dB and maximum insertion loss of 0.685 dB over the entire Ku-band frequency.
A Taguchi-Based Method for Assessing Data Center Sustainability

This paper presents a methodology for measuring sustainability performance of data center facilities. Treating data center operation as a continuous production process, a Taguchi framework is used to estimate the sustainability impact due to power utilization from the facility by calculating the loss to society as the facilities power utilization becomes less efficient than the Environmental Protection Agency’s guidelines. By tracking data center sustainability performance with continuous production process metrics, it is easy to identify and study performance characteristics, which if out of specification, have broader environmental impacts. This method evaluates the data center’s excess energy consumption as a performance quality control issue, and estimates the cost of poor performance. Average power usage effectiveness (PUE) is a standard data center performance metric. In this case study PUE is tracked continuously to provide real-time operations and controls feedback. Further, PUE is mapped using the Taguchi framework and the U.S. EPA data center benchmark to the societal cost of non-conformance with the performance benchmark performance deviation based on carbon emissions and associated carbon exchange markets. It is expected that the method used in this paper may provide useful information to policy makers, engineers, and decision makers regarding sustainable IT data centers.
Call Admission Control for Real-Time Applications of TVWS Wireless Access from HAP

: The rapid change in link capacity and user count induced by platform mobility in communication systems based on high altitude platform stations (HAPS) exploiting TV White Space (TVWS) spectrum may result in a high rate of handover failure and reduced resource utilization. In addition, in High Altitude Platform (HAP) wireless networks exploiting TV White Space (TVWS) spectrums, radio resources are frequently shared across numerous customers. When the number of users accepted into a network exceeds the network's capacity, network congestion occurs, resulting in a decrease in Quality of Service (QoS) or user displeasure. To address these issues, Call admission control (CAC) may be used. This article proposed a novel call admission control scheme using deadline, channel, and tolerance aware scheduling (DCTS) algorithm to solve the challenge of scheduling real-time flows in wireless networks while maintaining tight latency guarantees. The DCTS system ensures that the average packet drop due to deadline violation converges to the preset packet loss tolerance for a given deadline requirement, packet loss tolerance, and arrival rate. Our approach covers how to handle multiple real-time packet flows at the same time with a high risk of packet losses due to latency violations without surpassing a set threshold. It also discusses how real-time application scheduling in a wireless context must account for the complicated relationship between packet deadlines, channel circumstances, and flow tolerance, as well as how to propose such scheduling policies. We also test our proposed algorithm's performance for various arrival, channel state, deadline, and threshold scenarios. The convergence of packet drops near the threshold was demonstrated analytically. In wireless networks, CAC is a critical component in ensuring guaranteed quality of service. For real-time wireless applications that employ the DCTS scheduler, we present a threshold-based CAC method. We use the assumption that all flows belong to the same traffic class for determining the admission criteria. Our goal is to create a CAC algorithm that ensures that packet loss due to deadline violations is kept to a minimum for all allowed users. As a result, our CAC is based on a set of criteria that includes the maximum packet deadline, loss tolerance, and pace of newly received calls, as well as the accepted flows' minimum flow priority. The admission controller threshold is compared to the properties of freshly arrived flow in our CAC method. We compare our scheme's performance to that of the CAC of Violation Fair Exponential Rule (VFEXP) algorithm and the Modified Largest Weighted Delay First (MLWDF) methods.
CCTV The fire prevention system using thermal imaging camera in connection with CCTV

Thermal imaging camera to measure the temperature measurement is possible by moving objects in real-time and non-contact measurement can be used for a variety of tasks, such as industries, process are as, the electricity sector. In addition, environmental changes through the application S/W features for IT/ICT and Information Storage storage and processing of things Internet of CCTV enclosure internal temperature, humidity or higher status monitoring and supervisory control, information processing through the state monitoring areas it is required for ensuring data
The Seeds of the Noun–Verb Distinction in the Manual Modality: Improvisation and Interaction in the Emergence of Grammatical Categories

The noun–verb distinction has long been considered a fundamental property of human language, and has been found in some form even in the earliest stages of language emergence, including homesign and the early generations of emerging sign languages. We present two experimental studies that use silent gesture to investigate how noun–verb distinctions develop in the manual modality through two key processes: (i) improvising using novel signals by individuals, and (ii) using those signals in the interaction between communicators. We operationalise communicative interaction in two ways: a setting in which members of the dyad were in separate booths and were given a comprehension test after each stimulus vs. a more naturalistic face-to-face conversation without comprehension checks. There were few differences between the two conditions, highlighting the robustness of the paradigm. Our findings from both experiments reflect patterns found in naturally emerging sign languages. Some formal distinctions arise in the earliest stages of improvisation and do not require interaction to develop. However, the full range of formal distinctions between nouns and verbs found in naturally emerging language did not appear with either improvisation or interaction, suggesting that transmitting the language to a new generation of learners might be necessary for these properties to emerge.
CTAB Enhanced Room-Temperature Detection of NO2 Based on MoS2-Reduced Graphene Oxide Nanohybrid

A new NO2 nanohybrid of a gas sensor (CTAB-MoS2/rGO) was constructed for sensitive room-temperature detection of NO2 by 3D molybdenum disulfide (MoS2) and reduced graphene oxide (rGO), assisted with hexadecyl trimethyl ammonium bromide (CTAB). In comparison with MoS2 and MoS2/rGO, the BET and SEM characterization results depicted the three-dimensional structure of the CTAB-MoS2/rGO nanohybrid, which possessed a larger specific surface area to provide more active reaction sites to boost its gas-sensing performance. Observations of the gas-sensing properties indicated that the CTAB-MoS2/rGO sensor performed a high response of 45.5% for 17.5 ppm NO2, a remarkable selectivity of NO2, an ultra-low detection limit of 26.55 ppb and long-term stability for a 30-day measurement. In addition, the response obtained for the CTAB-MoS2/rGO sensor was about two to four times that obtained for the MoS2/rGO sensor and the MoS2 sensor toward 8 ppm NO2, which correlated with the heterojunction between MoS2 and rGO, and the improvement in surface area and conductivity correlated with the introduction of CTAB and rGO. The excellent performance of the CTAB-MoS2/rGO sensor further suggested the advantage of CTAB in assisting a reliable detection of trace NO2 and an alternative method for highly efficiently detecting NO2 in the environment.
Online damage inspection of optics for ATP system

In the Electro-Optical acquisition-tracking-pointing system (ATP), the optical components will be damaged with the several influencing factors. In this situation, the rate will increase sharply when the arrival of damage to some extent. As the complex processing techniques and long processing cycle of optical components, the damage will cause the great increase of the system development cost and cycle. Therefore, it is significant to detect the laser-induced damage in the ATP system. At present, the major research on the on-line damage detection technology of optical components is for the large optical system in the international. The relevant detection systems have complicated structures and many of components, and require enough installation space reserved, which do not apply for ATP system. To solve the problem mentioned before, This paper use a method based on machine vision to detect the damage on-line for the present ATP system. To start with, CCD and PC are used for image acquisition. Secondly, smoothing filters are used to restrain false damage points produced by noise. Then, with the shape feature included in the damage image, the OTSU Method which can define the best segmentation threshold automatically is used to achieve the goal to locate the damage regions. At last, we can supply some opinions for the lifetime of the optical components by analyzing the damage data, such as damage area, damage position. The method has the characteristics of few-detectors and simple-structures which can be installed without any changes of the original light path. With the method, experimental results show that it is stable and effective to achieve the goal of detecting the damage of optical components on-line in the ATP system.
Variable Cell Transmission Model for Mixed Traffic Flow with Connected Automated Vehicles and Human-Driven Vehicles

The current research on the mixed traﬃc ﬂow characteristics of human-driven vehicles (HDVs) and connected automated vehicles (CAVs) mainly focuses on the micro-level. To study the characteristics of the mixed traﬃc ﬂow from the medium and macro level, this paper proposes a variable cell transmission model (VCTM). First, the fundamental diagram is introduced based on the phenomena of hysteresis of traﬃc ﬂow. Second, the VCTM with diﬀerent market penetration rates (MPR) of CAVs is proposed based on the classical cell transmission model (CTM). Then, the eﬀectiveness of VCTM is veriﬁed by micro-simulation based on the intelligent driver model (IDM). Finally, some congestion indexes are selected to discuss the characteristics of mixed traﬃc ﬂow based on the VCTM with an expressway simulation. The results show that the traﬃc capacity and congestion dissipation capacity gradually are increased with the increase of MPR of CAVs. The homogeneous CAVs traﬃc ﬂow capacity can reach 1.41 times that of the homogeneous HDVs traﬃc ﬂow, and the congestion dissipation time can be reduced by 25%. The larger MPR is, the greater the improvement eﬀect is. In addition, compared with CTM, VCTM can reﬂect the delay, queuing, and dissipation of mixed traﬃc ﬂow more accurately, which is helpful to capture the evolution mechanism of mixed traﬃc ﬂow in the future.
Effects of progesterone on T-type-Ca2+-channel expression in Purkinje cells

[INLINE:1] Plasticity of cerebellar Purkinje cells (PC) is influenced by progesterone via the classical progesterone receptors PR-A and PR-B by stimulating dendritogenesis, spinogenesis, and synaptogenesis in these cells. Dissociated PC cultures were used to analyze progesterone effects at a molecular level on the voltage-gated T-type-Ca2+-channels Cav3.1, Cav3.2, and Cav3.3 as they helped determine neuronal plasticity by regulating Ca2+-influx in neuronal cells. The results showed direct effects of progesterone on the mRNA expression of T-type-Ca2+-channels, as well as on the protein kinases A and C being involved in downstream signaling pathways that play an important role in neuronal plasticity. For the mRNA expression studies of T-type-Ca2+-channels and protein kinases of the signaling cascade, laser microdissection and purified PC cultures of different maturation stages were used. Immunohistochemical staining was also performed to characterize the localization of T-type-Ca2+-channels in PC. Experimental progesterone treatment was performed on the purified PC culture for 24 and 48 hours. Our results show that progesterone increases the expression of Cav3.1 and Cav3.3 and associated protein kinases A and C in PC at the mRNA level within 48 hours after treatment at latest. These effects extend the current knowledge of the function of progesterone in the central nervous system and provide an explanatory approach for its influence on neuronal plasticity.
Analysis and Design of a Wideband Low Phase Noise LC VCO

In this paper, a LC voltage-controlled oscillator (LC-VCO) design optimization methodology based on switchable capacitor array is presented. The study of the compromises between phase noise and tuning range permits optimization of the design for given speciflcations. According to analytical phase noise models and tuning range, it allow to get a design space map where the design tradeofis are easily identifled. The proposed VCO is designed with the proposed methodology and implemented in SMIC's 0.18-"m RF CMOS technology and the chip area is 650"m £ 500"m, including the test bufier circuit and the pads. Simulation results show that its tuning range is 36.4%, from 4.5 to 6.5GHz. The simulating phase noise is i112:8dBc/Hz at 1MHz ofiset from the 6.5GHz carrier. The maximum average power consumption of the core part is 6.47mW at 1.8V power supply.