Miracle-dz/UniFAR-FTUs huggingface dataset:
Model Construction and Research on Decision Support System for Education Management Based on Data Mining

Based on data mining technology, this paper applies a combination of theoretical and practical approaches to systematically describe the background and basic concepts related to the generation of data mining-related technologies. The classical data mining process is analyzed in depth and in detail, and the method of building a decision support system for education management based on the B/S model is studied. Not only are the data mining techniques applied to this system, but also the decision tree model with the improved ID3 algorithm is implemented in this thesis, which is further applied to the educational management decision support system of this topic. The load of the client computer is reduced, and the client computer only needs to run a small part of the program. This paper focuses on the following aspects: the overall planning of the educational management decision support system based on data mining technology. From the actual educational management work, we analyze the requirements and design each functional module of this system in detail, applying the system functional structure diagram and functional use case diagram to represent the functional structure of the system and using flow charts to illustrate the workflow of the system as a whole and in parts. The logical structure design, entity-relationship design, and physical model design of the database have been carried out. To improve the efficiency of the system, the ID3 algorithm was improved on this basis to reduce the time complexity of its operation, improve the efficiency of the system operation, and achieve the goal of assessing and predicting the teaching quality of teachers. The development and design of this system provide an efficient, convenient, scientific, and reliable system tool to reduce the workload of education administrators and, more importantly, to make reasonable and effective use of the large amount of data generated in the management, and data mining techniques are used to extract valuable and potential information from these data, which can be more scientific and efficient for the teaching of teachers and students. It can provide reliable, referenceable, and valuable information for managers to make assessments and decisions.
Gheorghe Asachi ” Technical University of Iasi , Romania NEW APPROACHES IN THE DESIGN OF PLASTIC PRODUCTS FOR EASY RECYCLING

The researches were initiated in the context emphasized by the competition having the idea of profit at its base, and sustainable development, which imposes limitations through different regulations and standards which would involve supplementary costs. The research highlights the main trends in plastic product design in conditions of sustainable development of society. Plastics have an important role in the configuration of the new products just in the phase of conception. Having in mind the main advantages of the utilization of plastics, the expectation is to see an increase of the weighting of these ones in the products development. The paper underlies the fact that the new approaches of the life cycle of a product, and especially the conception phase are essential for the entire life cycle, taking into account the fact that the polluting agent is paying and the producer must take into account its extended responsibility, beyond the product sale. This paper highlights the relevance of the retrieval of the product as a very important phase in sustainable development. It is stressed that, even since the conception phase of the product, there must be taken into account the recycling of each life phase of the product. This is applicable especially in the industry of automotive, which is under the pressure of the sustainability. In this context, the role of plastics will increase simultaneously with the solving of the recycling problems. The advantages of using plastic materials (optimization the geometry of the product, the possibility to enclose into narrow spaces, the weight decrease, the fuel consumption diminish) are reflected gradually, together with the increase of the recycling rate.
The research on coordinated operation and cluster management for multi-microgrids

The object of this paper is to research coordinated operation model of the multiple microgrids based on effect of fish swarm and the multi-microgrids (MMG) cluster management based on multi-agent system (MAS). Through the study of coordinated operation and cluster management, the reliability and stability of the multiple microgrids can be enhanced by supplying power mutually across the existing ring distribution network. The cluster will relieve the upper grid's burden and even help to service restoration for black start. In a word, MMG cluster will do great favor for grid's stability, reliability and economic efficiency. (3 pages)
The investigation of W-band solid-state frequency sources

In this paper, the investigation of W-band solid-state continuous wave (CW) frequency sources is given, according to the types, such as HFET oscillator, Gunn diode oscillator, IMPATT oscillator and all kinds of frequency multiplier sources. The emphases are on the phase noise and frequency stability of frequency sources. Two W-band multiplier sources are developed, with spurious output less than -65dBc and phase noise -97dBc/Hz at 10kHz offset.
Seeing the Light: The Use of Zebrafish for Optogenetic Studies of the Heart

Optogenetics, involving the optical measurement and manipulation of cellular activity with genetically encoded light-sensitive proteins (“reporters” and “actuators”), is a powerful experimental technique for probing (patho-)physiological function. Originally developed as a tool for neuroscience, it has now been utilized in cardiac research for over a decade, providing novel insight into the electrophysiology of the healthy and diseased heart. Among the pioneering cardiac applications of optogenetic actuators were studies in zebrafish, which first demonstrated their use for precise spatiotemporal control of cardiac activity. Zebrafish were also adopted early as an experimental model for the use of optogenetic reporters, including genetically encoded voltage- and calcium-sensitive indicators. Beyond optogenetic studies, zebrafish are becoming an increasingly important tool for cardiac research, as they combine many of the advantages of integrative and reduced experimental models. The zebrafish has striking genetic and functional cardiac similarities to that of mammals, its genome is fully sequenced and can be modified using standard techniques, it has been used to recapitulate a variety of cardiac diseases, and it allows for high-throughput investigations. For optogenetic studies, zebrafish provide additional advantages, as the whole zebrafish heart can be visualized and interrogated in vivo in the transparent, externally developing embryo, and the relatively small adult heart allows for in situ cell-specific observation and control not possible in mammals. With the advent of increasingly sophisticated fluorescence imaging approaches and methods for spatially-resolved light stimulation in the heart, the zebrafish represents an experimental model with unrealized potential for cardiac optogenetic studies. In this review we summarize the use of zebrafish for optogenetic investigations in the heart, highlighting their specific advantages and limitations, and their potential for future cardiac research.
A Survey of 802.15.4 TSCH Schedulers for a Standardized Industrial Internet of Things

Concepts such as Industry 4.0 and Cyber-Physical Systems may bring forward a new industrial revolution. These concepts require extensive connectivity far beyond what is provided by traditional industrial networks. The Industrial Internet of Things (IIoT) bridges this gap by employing wireless connectivity and IP networking. In order for wireless networks to meet the strict requirements of the industrial domain, the Time Slotted Channel Hopping (TSCH) MAC is often employed. The properties of a TSCH network are defined by the schedule, which dictates transmission opportunities for all nodes. We survey the literature for these schedulers, describe and organize them according to their operation: Centralized, Collaborative, Autonomous, Hybrid, and Static. For each category and the field as a whole, we provide a holistic view and describe historical trends, highlight key developments, and identify trends, such as the attention towards autonomous mechanisms. Each of the 76 schedulers is analyzed into their common components to allow for comparison between schedulers and a deeper understanding of functionality and key properties. This reveals trends such as increasing complexity and the utilization of centralized principles in several collaborative schedulers. Further, each scheduler is evaluated qualitatively to identify its objectives. Altogether this allows us to point out challenges in existing work and identify areas for future research, including fault tolerance, scalability, non-convergecast traffic patterns, and hybrid scheduling strategies.
Effects of strain hardening of reinforcement on flexural strength and ductility of reinforced concrete columns

In the evaluation of flexural strength of reinforced concrete (RC) columns, the elastic–perfectly plastic constitutive model is generally used for steel reinforcement, which ignores the strain hardening effect. While some engineers believe that the flexural strength so obtained is on the safe side, others are concerned that underestimation of member strength could lead to inaccurate prediction of overall structural behaviour especially under extreme events. In any case, better understanding of the possible over‐strength and its effects on flexural ductility and failure mechanism is necessary. In this paper, the effects of strain hardening of reinforcement on the flexural strength and ductility of reinforced normal‐ and high‐strength concrete columns are studied based on rigorous full‐range moment–curvature analysis. The study has identified if and how various parameters affect the strain hardening effect, which include axial load ratio, concrete strength, confining stress, reinforcement ratio and the tensile‐strength‐to‐yield‐stress ratio of steel. The effects of strain hardening can be quite significant for RC columns under relatively low axial load and relatively high confining stress. Copyright © 2009 John Wiley & Sons, Ltd.
Enrichment of the Information Extracted From Hyperspectral Reflectance Images for Noninvasive Phenotyping

Hyperspectral reflectance imaging is an emerging method for rapid non-invasive quantitative screening of plant traits. This method is essential for high-throughput phenotyping and hence for accelerated breeding of crop plants as well as for precision agriculture practices. However, extraction of sensible information from reflectance images is hindered by the complexity of plant optical properties, especially when they are measured in the field. We propose using reflectance indices (Plant Senescence Reflectance Index, PSRI; Anthocyanin Reflectance Index, ARI; and spectral deconvolution) previously developed for remote sensing of vegetation and point-based reflectometers to infer the spatially resolved information on plant development and biochemical composition using ripening apple fruit as the model. Specifically, the proposed approach enables capturing data on distribution of chlorophylls and primary carotenoids as well as secondary carotenoids (both linked with fruit ripening and leaf senescence during plant development) as well as the information on spatial distribution of anthocyanins (known as stress pigments) over the plant surface. We argue that the proposed approach would enrich the phenotype assessments made on the base of reflectance image analysis with valuable information on plant physiological condition, stress acclimation state, and the progression of the plant development.
Insights into the perspective correlation between vitamin D and regulation of hormones: sex hormones and prolactin

Abstract Aim. Vitamin D is currently an exciting research target, besides its obvious role in calcium homeostasis and bone health, enormous work is being directed at examining the effects of this vitamin on various biological functions and pathological conditions. Material and methods. The review of the literature and the analysis took about six months and was carried out through PubMed. This is a search engine opening mainly the MEDLINE database of trusted references. We called up all studies written in English that were published between the years 2004 to 2021 and that came through using the applied search terms, and analysed all those that met the criteria. Results. The endocrine system with its many glands and hormones and their essential roles in the maintenance of normal body functioning cannot be far from interactions with vitamin D. Male and female sex hormones are no exceptions and many studies have investigated the correlations between these hormones and vitamin D. As such, direct and indirect relationships have been found between vitamin D, its receptors or one of its metabolising enzymes with sex hormones and the development of reproductive organs in males and females. Conclusion. This review summarises the research investigating the associations of vitamin D with sex hormones and reproductive organs in males and females, and thus may pave the road for future studies that will investigate the clinical significance of vitamin D in the management of reproductive system disorders. Despite some conflicting results about the relationship between VD and the effectiveness of the reproductive system, many studies confirm the presence of receptors for this vitamin in the reproductive system, and this supports the direct or indirect relationship between VD and prolactin or VD and testosterone through PO4 and Ca2+ homeostasis, or production of osteocalcin. Therefore, VD is positively associated with semen quality and androgen status. Furthermore, a direct relationship between VD and the production of progesterone, estrogen and estrone in human ovarian cells has been supported by many studies.
AHP/ANP a decision making service in PROSIS model

An approach that relies on the use of the holonic paradigm, on an isoarchic architecture and on a decision-making capacity based on a multicriteria analysis is presented. The various concepts of this approach are addressed first. Then, the multicriteria decision methods based on AHP (Analytic Hierarchy Process) and its generalization ANP (Analytic Network Process) are detailed, as well as the implementation phases. The first obtained results on a case study are presented.
The effect of quasi-optics errors on reflector antenna performance

The use of quasi-optics feed systems with a reflector antenna allows multiple-frequency operation over a very wide bandwidth for remote sensing of the Earth and atmosphere from space. The errors in such a multichannel quasi-optical feed system must be controlled in order to limit the degradation of system performance. These errors can be attributed to the presence of higher-order Gaussian modes, but the errors can be minimized if the quasi-optical system can be made independent of frequency. If volume limitations preclude a frequency-independent design, the amplitude of the higher-order Gaussian modes must be controlled. >
Theoretical Determinants for Assessing Sustainability in Printing Companies Operations

The concern and search for the sustainable development has been forcing the organizations to modify your management systems and your operation models, aiming to attend these new environments. To have a business and sustainable operations, means to be economically viable, reduce or even not generate wastes, save energy and natural resources, be safe for the workers, community and consumers, to improve life quality, and share values. It can be noticed that the Brazilian graphic companies have been promoting changes in your strategy, business models and opera tion systems. The main objective of this work is to propose a conceptual structure to organize the practice of sustainable operations, which has as a goal to answer the research question, based on operation analysis: Has the graphic industry been doing your operations in a sustainable manner, focusing on the economy, environment and social aspects? It has been done a revision of the literature that contributed to characterize the context, structures and processes for the conception of a sustainable operation management. The proposed model has the intention to contain the best practices for the development of the sustainable operation and to be used for audit and regulatory. This will allow that the graphic companies adapt your models and operation systems, aiming the creation of a truly sustainable company.
Hurricane Evacuation Behavior

Researchers have conducted sample surveys following at least twelve hurricanes from 1961 through 1989 in almost every state from Texas through Massachutts. The resulting database is larger than that for any other hazard, and many generalizations are feasible concerning factors accounting for variation in response to hurricane threats. Risk area and actions by public officials are the most important variables affecting public response. When public officials are aggressive in issuing evacuation notices and disseminate the messages effectively. over 90 percent of the residents of high-risk barrier islands and open coasts evacuate. People hearing, or believing they hear, official evacuation advisories or orders are more than twice as likely to leave in most locations. A greater percentage of mobile home dwellers evacuate than occupants of other housing, especially in modelate-risk and low-risk areas. General knowledge about hurricanes and hurricane safety is weakly related or unrelated to evacuation, but belief that one's own home is subject to flooding is strongly associated with whether the occupant leaves. Length of residence in hurricane prone areas and hurricane experience are not good predictors of response. The great majority of people who evacuate unnecessarily in one hurricane will still leave in future threats.
A low-cost uncooled infrared microbolometer detector in standard CMOS technology

This paper reports the development of a low-cost uncooled infrared microbolometer detector using a commercial 0.8 /spl mu/m CMOS process, where the CMOS n-well layer is used as the infrared sensitive material. The n-well is suspended by front-end bulk-micromachining of the fabricated CMOS dies using electrochemical etch-stop technique in TMAH. Since this approach does not require any lithography or infrared sensitive material deposition after CMOS fabrication, the detector cost is almost equal to the CMOS chip cost. The n-well has a TCR of 0.5-0.7%/K, relatively low compared to state-of-the-art microbolometer materials; however, it has negligible 1/f noise due to its single crystal structure. The use of polysilicon interconnects on the support arms instead of metal reduces the overall pixel TCR to 0.34%/K, but provides a better performance due to improved thermal isolation. Based on this pixel, a 16 /spl times/ 16 prototype focal plane array (FPA) with 80 /spl mu/m /spl times/ 80 /spl mu/m pixel size and 13% fill factor has been implemented, where built-in diodes are used to simplify array scanning, at the expense of reduced overall pixel TCR of 0.24%/K. The n-well microbolometer array with a simple readout scheme provides a responsivity of 2000 V/W, a detectivity of 2.6 /spl times/ 10/sup 8/ cmHz/sup 1/2//W, and an estimated NETD of 200 mK at 0.5 Hz frame rate. Considering that this performance can be further improved with low noise readout circuits, the CMOS n-well microbolometer is a cost-effective approach to implement very low-cost uncooled infrared detector arrays with reasonable performance.
Nonlinear Responses of a Two Dimensional Vehicle-pavement System

The vehicle and pavement are usually investigated separately in vehicle dynamics and pavement dynamics. In this work, a new research scheme is proposed to link the vehicle and pavement model by tire loads and compute the nonlinear dynamic responses by analytical methods. A two-DOF nonlinear vehicle and a Bernoulli- Euler beam on a nonlinear elastic foundation with two simply supported ends compose the nonlinear vehicle- pavement system. The nonlinear tire loads are analytically gained using the averaging method. Then the nonlinear vibration equation of the pavement is obtained using Galerkin method and solved using the multiple scales method. The theoretical solutions are verified by numerical results and the effects of system parameters on pavement vibration are also studied. It is found that the pavement responses excited by tire loads attenuate quickly and small pavement mass, large foundation damping or foundation stiffness may decrease the pavement vibration.
Major changes and pedagogical challenges in the curriculum of physicians in the post-pandemic of COVID-19: a systematic review

Introduction: Respiratory disease (COVID-19) caused by the new coronavirus (SARSCoV-2) has spread around the world causing respiratory illnesses and deaths. The COVID-19 pandemic caused an unprecedented crisis in the field of education. It is essential to reflect on the role of educational systems in curricular training, especially for doctors. Objective: The present study prepared a systematic review to analyze the main curriculum changes in medical education institutions around the world. Methods: The present study followed a systematic review model (PRISMA). The search strategy was performed in the PubMed, Cochrane Library, Web of Science and Scopus, and Google Scholar database, using scientific articles from 2009 to 2021. Results: As a corollary of the literary search system, 155 studies were analyzed and submitted to eligibility analysis, and then 55 high to moderate quality studies were selected. Biases did not compromise the scientific basis of the studies. It was analyzed that it is crucial that the academic education community learn from experience and prioritize a forward-thinking academic approach as practical solutions are implemented. The pandemic has brought about a lasting transformation in medicine with the advancement of telehealth, adaptive research protocols, and clinical trials with flexible approaches to achieving solutions. The studies analyzed in general did not address criticisms about the weaknesses of remote education, limiting themselves to defending it as the only viable strategy. There was no consensus on the inclusion of students in the practical activities of curricular internships and medical internships. A part of the studies defends the inclusion in hospital spaces as a way to contribute to overcoming the health crisis imposed by the pandemic. The studies evidenced the inclusion of pandemic management disciplines with a focus on public health in the medical curricula. Conclusion: The medical activity and curriculum underwent and are undergoing significant changes and adaptations. Thus, the doctor will need to develop other skills, without losing the traditional ones. The highlight is telehealth and soft skills, as they will allow students to connect to the best in world medicine, highlighting the importance of scientific knowledge when establishing treatments in cases of pandemics with a focus on public health.