Miracle-dz/UniFAR-FTUs huggingface dataset:
Construction of compact two‐port throne‐shaped antenna with dual stopbands and high isolation for Ultrawideband Multiple‐Input Multiple‐Output wireless communication systems

A throne‐shaped compact ultrawideband (UWB) two‐port multiple‐input multiple‐output (MIMO) antenna operating from 2.9 to 11.5 GHz is introduced. Dual‐band rejections are created at the center frequency of 5.5 and 7.5 GHz by embedding U‐slot on the feedline and split ring resonator (SRR) on the ground plane to eliminate interference with narrowband systems of these frequencies, respectively. Low mutual coupling of −22 dB is obtained almost throughout the full band by etching a rectangular slot in a cone‐shaped stub. Procedures for achieving the UWB band as well as two stopbands are discussed in detail. Current distribution, gain and radiation pattern for the proposed antenna are also studied. Peak gain of 2.51 dBi and radiation efficiency greater than 73% is obtained. Diversity parameters confirming the MIMO characteristics are also investigated. Experimental results are obtained through a practical model in the anechoic chamber to validate the simulations.
Social Isolation in COVID-19: Impact on Mental Health of Young Adults

Background: The coronavirus disease (COVID-19) is profoundly affecting life around the globe. Social Isolation, contact restrictions and economic shutdown impose a complete change to the psychosocial environment threatening the mental health of young adults significantly.Objectives: The present study aims to assess the impact of Social Isolation on the mental health of young adults during the pandemic.Methods: A web based research was conducted on a sample of 438 college students of age 18-24 years. The participants were asked for responding to a standardized online questionnaire that included questions related to their anxiety levels and the 7-item Generalized Anxiety Disorder Scale (GAD-7). Results: The results revealed 78.4% of the study populations were suffering with mild (35.2%), moderate (23.7%), and severe anxiety (19.4%) respectively. Univariate and Logistic Regression Analysis revealed gender and course/year of study had a significant effect on the level of anxiety (p<0.05). Also, students living alone and having a relative or an acquaintance infected with COVID-19 were likely to be more anxious (p < 0.05). Spearman correlation analysis depicted Social Isolation as the main Covid-19 related stressor which was positively correlated and highly significant (p=0.0001) to the level of anxiety of young adults.Conclusions: The present study revealed approximately 43% of young adults is suffering from moderate to severe anxiety levels which require urgent attention.
Norwegian Red Heifers Grazing in Outfield Pastures of Southeastern Norway : A Case Study on Heifer Weight Gain and Body Condition

Livestock grazing on outfield pastures to utilize inexpensive forage and save infield pastures to harvest winter feed is an important focus topic in Norwegian agriculture. It is important for the health and biodiversity of native grassland communities to be maintained to prevent secondary succession. One method of grassland management is grazing cattle on outfield pastures. This develops a symbiotic relationship where native grassland is maintained while cattle are nourished without sacrificing their growth and development. In Ringsaker and Vang almenning areas of Hedmark County, three dairy farms practice summer grazing on outfield pastures and allowed 41 of their Norwegian Red heifers to participate in this study. One farm allowed their heifers to forage freely (O-group) and the other farms had heifers in a restricted area (P-group). The aim of this study was to identify if an outfield grazing production system could support those heifers growth, body weight, and body condition as recommended by the Norwegian dairy coop Tine. Subsequently, I measured both live body weight and body condition of those 41 heifers. The results indicated that the only heifers that gained body weight during the grazing season were those heifers that originated from the open grazing production system (Ogroup). The heifers in the O-group gained on average 17.4 kg while grazing on outfield pastures. Those heifers in the O-group were also the closest to the suggested weight recommended by Tine, with an average of 28.3 kg below the recommended weight for heifers’ respected ages. The heifers in the Pen grazing production system (P-group) lost an extensive amount of weight. Heifers in the P-group lost on average 60.9 kg, and were also 95 kg below their recommended Tine weight. In addition, this study also found a negative correlation between overweight heifers at the start of the grazing season and percentage body weight loss. Those heifers in our study that were the most overweight lost large percentage of their body weight over the grazing season. In this study the results illustrate that grazing heifers on outfield pastures may be accomplished without sacrificing livestock production through the use of an open grazing management production system.
Optimal Control of Electric Vehicle Power Chain

In this paper, a methodology of scalar control of the electric cars power chain is described. This methodology takes into account of system interactions. This type of control is suitable for converter with electromagnetic switches. The choice of this conve push the multiple disadvantages of the IGBTs converters and especially to reduce the cost of global power chain.The overall model of the power chain implanted under the Matlab simulation environment, leads to results of very g In this paper, a methodology of scalar control of the electric cars power chain is described. This methodology takes into account of system interactions. This type of control is suitable for converter with electromagnetic switches. The choice of this conve rter is in order to push the multiple disadvantages of the IGBTs converters and especially to reduce the cost of global power chain.The overall model of the power chain implanted under the Matlab -Simulink simulation environment, leads to results of very g ood standard. In this paper, we present a systemic scalar control and design method of electric vehicle (EVs) power chain , taking into account several constraints such as the speed limit, the energy saving, the cost of the power chain and the reliability of the whole s ystem. This method is based firstly on the analytical sizing of the power chain, and secondly on the analytical modeling of the controll parameters of the electric actuator (1), (2), (3), (4), (5), . It takes into account the compatibility between the c omponents of the power chain to reach the critical level of performance of the global system. This approach is based on the application of the general theorems relating to the design of electrotechnical devices (7), . The global design model provid es results relating to the manufacturing of the electric motor, converter and the mechanical transmission system (1), (2), (3). These results increases the compatibility of this approach with the optimization procedures of EVs limit, the autonomy, the production cost etc (1). This study ends with a validation study of the design approach. Indeed, the simulation of the electrical, mechanical and magnetic behavior on a global control model of this chain fully validates Several configurations of power chain are shown in the literature. We cite as examples: engine wheels configuration to direct mechanical linkage or gears. The configuration with two motors front or rear to direct connection or with gear. engine configuration with mechanical differential transmission more gears or gearless. This configuration is chosen for our application because it offers the advantage of low cost, because the manufacture of a s ingle motor is less expensive than many engines.
A Case of Erythema Dyschromicum Perstans

A 66-year-old male presented with pigmented lesions that he had for a few months. Diagnosis of erythema dyschromicum perstans was made based on clinical appearance (asymptomatic, blue-grayish patches of varying sizes, some with erythematous borders, distributed on the face, arms, shoulders and trunk) (Figure 1 A-D), histopathology (atrophic epidermis, superficial and perivascular lymphocytic infiltrate and pigment incontinence in the dermis) (Figure 1E) and dermoscopy (gray-bluish small dots over a bluish base) (Figure 1F).
Ghanaian Couples' Perceptions and Attitudes Towards Women's Participation in Family Fishery Decisions and Practices

Abstract:In the last few decades, there has been growing scholarly interest about the implications of women's increased economic role on household decision-making dynamics. Contributing to these conversations, the current paper examines couples (wives and husbands) perceptions and attitudes towards women's decision-making power in the context of Ghana's small-scale fishery where both couples engage in the same economic activity, performing different, but complementary roles. The study involved interviews with 20 and 18 married female and male fisherfolk respectively, which was part of a larger study by the first author among fisherfolk in the south-western coast of Ghana. We show that accounts of perceived decision-making power of women varied by spouse. Using a gender lens, we show how both women and men discursively reproduced and challenged hegemonic gender discourses and relations in different contexts. We argue that exploring the gaps in couples' account of women's household decision-making power as well as their perceptions and attitudes towards such roles provides important ground to understanding the inconsistencies in the outcomes of programs targeted at women empowerment and gender equality. Résumé:Au cours des dernières décennies, les chercheurs s'intéressent de plus en plus aux implications du rôle économique accru des femmes sur la dynamique de prise de décision des ménages. Contribuant à ces conversations, le présent document examine les perceptions et les attitudes des couples (épouses et maris) à l'égard du pouvoir de décision des femmes dans le contexte de la pêche artisanale du Ghana où les deux couples s'engagent dans la même activité économique, remplissant des rôles différents mais complémentaires. L'étude impliquait des entretiens avec 20 et 18 pêcheurs mariés, respectivement, femmes et hommes, qui faisaient partie d'une étude plus vaste menée par le premier auteur parmi les pêcheurs de la côte sudouest du Ghana. Nous montrons que les comptes du pouvoir décisionnel perçu des femmes variaient selon le conjoint. À l'aide d'une optique de genre, nous montrons comment les femmes et les hommes ont reproduit et remis en question de manière discursive les discours et les relations hégémoniques de genre dans différents contextes. Nous soutenons que l'exploration des lacunes dans l'exposé des couples sur le pouvoir de décision des femmes au sein du ménage ainsi que leurs perceptions et attitudes à l'égard de ces rôles fournit une base importante pour comprendre les incohérences dans les résultats des programmes ciblés sur l'autonomisation des femmes et l'égalité des sexes.
UAV Mapping and 3D Modeling as a Tool for Promotion and Management of the Urban Space

In the past few decades, the management of urban spaces with appropriate tools has been in constant discussion due to the plethora of new technologies that have emerged for participatory planning, drone mapping, photogrammetry and 3D modeling. In a multitude of situations, considerable progress has been made regarding the strategic impact of the successful use of technology for the development of urban spaces. The current era provides us with important digital tools and the opportunity to test new perspectives in the sustainable development of cities. This paper aims to explore the contribution of UAVs to the spatial mapping process of urban space, with the goal of collecting quantifiable and qualitative information to use for 3D modeling that can enable a more comprehensive understanding of the urban environment, thus facilitating urban regeneration processes. Three-dimensional models of high accuracy are not mandatory for this research. The location of the selected research area is particularly interesting due to its boundaries, urban voids and public space that can evolve through public participation. The results can be used for crowdsourcing in participatory decision-making processes and for exploring the consequences that these have on the built environment, and they can be used as a new means of involvement of citizens in local decision-making processes.
Validation of the Lightning Fractal Model Based on the Attachment Probability Experiments Using Rod-Rod Air Gaps

Direct lightning poses a serious threat to the safety of power systems. In recent years, the lightning fractal model, which can reflect the fractal characteristics and randomness of lightning leaders, has been gradually applied to direct lightning protection for substations, transmission lines, etc. However, since few studies have linked simulations with experiments, the reliability of the lightning fractal model in terms of attachment probability prediction lacks experimental verification. In this paper, a series of attachment tests are carried out under a rod-rod gap. The equivalence between simulation tests and natural lightning is discussed, and the influencing factors of the attachment results are investigated. The attachment probability is simulated and compared to the test value under each test configuration. The test results show that the fractal dimension of discharge channel is consistent with the observation results of natural lightning. Under different configurations, the test value of attachment probability basically conforms to the simulation value. In general, the dispersion of the test results is slightly greater than the simulation results, but the average probability differences are all within 10%. The test results strongly indicate that the lightning fractal model is of good reliability in the prediction of strike probability.
Understanding the Dynamics of the Transient and Permanent Opening Events of the Mitochondrial Permeability Transition Pore with a Novel Stochastic Model

The mitochondrial permeability transition pore (mPTP) is a non-selective pore in the inner mitochondrial membrane (IMM) which causes depolarization when it opens under conditions of oxidative stress and high concentrations of Ca2+. In this study, a stochastic computational model was developed to better understand the dynamics of mPTP opening and closing associated with elevated reactive oxygen species (ROS) in cardiomyocytes. The data modeled are from “photon stress” experiments in which the fluorescent dye TMRM (tetramethylrhodamine methyl ester) is both the source of ROS (induced by laser light) and sensor of the electrical potential difference across the IMM. Monte Carlo methods were applied to describe opening and closing of the pore along with the Hill Equation to account for the effect of ROS levels on the transition probabilities. The amplitude distribution of transient mPTP opening events, the number of transient mPTP opening events per minute in a cell, the time it takes for recovery after transient depolarizations in the mitochondria, and the change in TMRM fluorescence during the transition from transient to permanent mPTP opening events were analyzed. The model suggests that mPTP transient open times have an exponential distribution that are reflected in TMRM fluorescence. A second multiple pore model in which individual channels have no permanent open state suggests that 5–10 mPTP per mitochondria would be needed for sustained mitochondrial depolarization at elevated ROS with at least 1 mPTP in the transient open state.
A Fast Optimal Speed Planning System in Arterial Roads for Intelligent and Connected Vehicles

Speed planning system is generally equipped for intelligent and connected vehicles (ICVs). Under the circumstances of autonomous driving, an energy-optimal speed trajectory is usually desired, particularly on urban arterial roads with complex traffic conditions involved. However, the existing speed planning solutions in the literature have not dealt with the problem of time consuming. Also, the ego vehicle could not perfectly track a precalculated speed reference because of the dynamically varying traffic. Thus, optimal speed planning cannot always be guaranteed. In this article, a fast optimal speed planning system for complex urban driving situations is established through an adaptive hierarchical control framework. In the planning layer, dynamic programming (DP) and the interior-point optimizer are jointly used to compute the global speed trajectory with access to signal phase and timing (SPaT) information. The computational burden is greatly alleviated based on a weighted orientation graph assumption and problem decomposition. The following layer utilizes the Informer, which is a transformer-based model, to predict preceding vehicle speed. Then, a target-switching model-predictive controller (MPC) is adopted for global speed trajectory following and adaption. The proposed approach significantly reduces speed planning computation time compared to previous solutions. Simulation results based on real road traffic scenes manifest that 22.0% of energy is saved compared with human driving.
An Online Controlled Experiment Design to Support the Transformation of Digital Learning towards Adaptive Learning Platforms

: Digital learning platforms are more and more used in blended classroom scenarios in Germany. However, as learning processes are different among students, adaptive learning platforms can offer personalized learning, e.g. by individual feedback and corrections, task sequencing, or recommendations. As digital learning platforms are already used in classroom settings, we propose the transformation of these platforms into adaptive learning environments. To measure the effectiveness and improvements achieved through the adaptions an online-controlled experiment design is created. Our result is a process that consists of the target definition, development of the prediction model, definition of the adaptions, building the experiment architecture, the experimental period, and the hypothesis testing. As an example, we apply this design exemplarily to an online learning platform for German spelling and grammar. In this way, we contribute to the research field by bridg-ing the gap between adaptive learning technology and the process of transformations and experiment designs.
A Weighted Cluster Head Selection Algorithm for Energy Efficient Wireless Sensor Networks

The wireless sensor network’s (WSNs) lifetime is mainly dependent on the RE of the sensor nodes (SeN). In recent years, energy minimization in a WSN has been a prominent research topic, and numerous solutions have been proposed. This research focuses on the energy minimization of the SeNs where firstly, K-medoid clustering algorithm is applied to create clusters. Second, a weighted cluster head selection technique is used to choose a cluster head (CH) by integrating three independent weights associated with an SeN: energy, distance from the centroid, and distance from the sink node (SN). According to the energy level and distance from the SN and cluster’s centre, each node is assigned a constant weight. The simulation results are compared to existing methodologies, and the results show that the suggested network’s lifetime enhances.
An Experimental Investigation on Soft Story Formation at the Nonductile RC Frames

Turkey situated on a very dangerous earthquake zone of the world. The lands of the Turkey are situated 96% earthquake zone and most of the population is under the risk of earthquake.After the recent earthquakes, most of the nonductile reinforced concrete structure were damaged or totally collapsed due to well known and repeated design and construction mistakes. On the other hand, the same magnitude earthquakes can be passed without no or very little human loss. The aim of this study is to suggest a strengthening method to eliminate the negative effect of formation of soft storey that a major cause of damage for the inadequate earthquake resistance of reinforced concrete structures. 1/3 geometrical scale,two- storey and one-bay reinforced concrete test specimens were tested in the study. Specimens tested under reversed cyclic lateral loading that simulating seismic action. First test specimen was the reference frame that both stories infilled with hollow clay tiles. The second test specimen was just infilled of the upper floor (no walls on the ground floor for commercial purposes) with soft story irregularities. And the third specimen, the specimen which was tested in the second test with soft story irregularity, strengthened transversely with inverted V profiles on the ground floor. The experimental results show that the addition of steel diagonal significantly increased strength and stiffness of the specimens.
Semi‐active control of flexible structures using closed‐loop input shaping techniques

In this research effort, a novel approach on the control of structures with magnetorheological (MR) dampers is presented, based on an appropriately adapted closed‐loop version of the generic input shaping control theory. The MR damper is a very promising kind of semi‐active control system (actuator), mixing the advantages of the active and passive structural control systems, hence their increasing use as attenuators that reject the effects of dynamic loads on civil engineering structures. The main contribution of this article is the application and performance evaluation of the novel ‘Linear Matrix Inequality‐based’ feedback version of the input shaping control theory for the first time in the area of structural control. The need for the use of a feedback version of input shaping control stems from the design trade‐off between robustness and speed of response requirements. A simulation of a benchmark three‐story building with one MR damper is employed to verify the efficiency of the proposed control approach. The nonlinear behaviour of the MR damper, rigidly connected between the first floor of the structure and the ground, is captured by the well‐known Bouc–Wen model. The superiority and effectiveness of the proposed scheme in reducing the responses of the structure were proved using seven quantifiable evaluation criteria and by comparing these results with those achieved by classical and well‐established alternative control schemes. Copyright © 2016 John Wiley & Sons, Ltd.
Intimacy in the strict sense of the term: conflict of intentions in the translation of Malinowski’s diaries

ABSTRACT Translating sensitive or intimate content is a vulnerable type of translation, involving a sense of betrayal or falsification. Scholars have indicated a number of problems mainly in relation to translating autobiographical testimonies, highlighting the translator’s responsibility and manipulation. It seems that these difficulties become even more aggravated in the case of translating an intimate journal written by the diarist with no intended readership in mind. The translation event requires a consistent strategy that acknowledges both the diarist and the new context. This article is aimed to discuss the English translation of Bronislaw Malinowski’s diaries published under the title A Diary in the Strict Sense of the Term. The initially negative reception of the translated text may be explained by the fact that the chosen translation strategy was based on conflict rather than a strategic utilisation of constraints.