Miracle-dz/UniFAR-FTUs huggingface dataset:
Compact wideband directional L-slot antenna for LTE application

This paper presents a design of compact wideband directional antenna with L-slot technique on the ground plane for LTE application at frequency of 2.6GHz. The structure of the design consist of three layers of conductive copper and separate by two layers of FR4 substrate with the permittivity of 4.7. Two L-slots has been added to the ground plane for bandwidth enhancement. The simulation has been performed and meets the requirement of LTE standard with the centre frequency of 2.6GHz and achieves the bandwidth 247MHz at 10dB return loss, a peak gain of 4.114dB in simulation. Directional radiation pattern obtained is useful for application such as mobile full duplex relaying which utilises directivity to isolate the self interference.
Analyse fine 2D/3D de véhicules par réseaux de neurones profonds. (2D/3D fine-grained analysis of vehicles using deep neural networks)

Les travaux developpes dans cette these s’interessent a l’analyse fine des vehicules a partir d’une image. Nous definissons le terme d’analyse fine comme un regroupement des concepts suivants : la detection des vehicules dans l’image, l’estimation de leur point de vue (ou orientation), la caracterisation de leur visibilite, leur localisation 3D dans la scene et la reconnaissance de leur marque et de leur modele. La construction de solutions fiables d’analyse fine de vehicules laisse place a de nombreuses applications notamment dans le domaine du transport intelligent et de la video surveillance.Dans ces travaux, nous proposons plusieurs contributions permettant de traiter partiellement ou completement cette problematique. Les approches mises en oeuvre se basent sur l’utilisation conjointe de l’apprentissage profond et de modeles 3D de vehicule. Dans une premiere partie, nous traitons le probleme de reconnaissance de marques et modeles en prenant en compte la difficulte de la creation de bases d’apprentissage. Dans une seconde partie, nous investiguons une methode de detection et d’estimation du point de vue precis en nous basant sur l’extraction de caracteristiques visuelles locales et de la coherence geometrique. La methode utilise des modeles mathematiques uniquement appris sur des donnees synthetiques. Enfin, dans une troisieme partie, un systeme complet d’analyse fine de vehicules dans le contexte de la conduite autonome est propose. Celui-ci se base sur le concept d’apprentissage profond multi-tâches. Des resultats quantitatifs et qualitatifs sont presentes tout au long de ce manuscrit. Sur certains aspects de l’analyse fine de vehicules a partir d’une image, ces recherches nous ont permis de depasser l’etat de l’art.
Factors that influence the efficiency of a fluidized-bed-type tribo-electrostatic separator for mixed granular plastics

Fluidized bed devices have already been used as tribochargers for various industrial electrostatic separation processes. In the present paper, the authors investigate the behaviour of polyamide – polycarbonate granular plastic mixtures in a parallelepiped bed, the height of which is roughly 2 times its length or width, so that the collisions between granules become the prevailing tribocharging mechanism. Two of the opposite walls of the tribocharging chamber consist of metallic plates connected to two DC high-voltage supplies of opposite polarities, so that the charged particles are attracted to the electrodes and separated while still in the fluidized state. The collecting hoppers are designed as Faraday cups connected to two electrometers, thus allowing the instantaneous measurement of the charge carried by the separated particles. Experimental design methodology was employed for the optimization of the tribo-aero-electrostatic separation process, the input variables being the high-voltage applied to the electrodes and the duration of the tribocharging. Higher voltages applied to the electrode system do not necessarily lead to larger quantities of collected products but improve the purity of the concentrates. The composition of the mixture influences the outcome of the process.
Molecular Phylogeny of the Astrophorida (Porifera, Demospongiae p) Reveals an Unexpected High Level of Spicule Homoplasy

Background The Astrophorida (Porifera, Demospongiae p) is geographically and bathymetrically widely distributed. Systema Porifera currently includes five families in this order: Ancorinidae, Calthropellidae, Geodiidae, Pachastrellidae and Thrombidae. To date, molecular phylogenetic studies including Astrophorida species are scarce and offer limited sampling. Phylogenetic relationships within this order are therefore for the most part unknown and hypotheses based on morphology largely untested. Astrophorida taxa have very diverse spicule sets that make them a model of choice to investigate spicule evolution. Methodology/Principal Findings With a sampling of 153 specimens (9 families, 29 genera, 89 species) covering the deep- and shallow-waters worldwide, this work presents the first comprehensive molecular phylogeny of the Astrophorida, using a cytochrome c oxidase subunit I (COI) gene partial sequence and the 5′ end terminal part of the 28S rDNA gene (C1-D2 domains). The resulting tree suggested that i) the Astrophorida included some lithistid families and some Alectonidae species, ii) the sub-orders Euastrophorida and Streptosclerophorida were both polyphyletic, iii) the Geodiidae, the Ancorinidae and the Pachastrellidae were not monophyletic, iv) the Calthropellidae was part of the Geodiidae clade (Calthropella at least), and finally that v) many genera were polyphyletic (Ecionemia, Erylus, Poecillastra, Penares, Rhabdastrella, Stelletta and Vulcanella). Conclusion The Astrophorida is a larger order than previously considered, comprising ca. 820 species. Based on these results, we propose new classifications for the Astrophorida using both the classical rank-based nomenclature (i.e., Linnaean classification) and the phylogenetic nomenclature following the PhyloCode, independent of taxonomic rank. A key to the Astrophorida families, sub-families and genera incertae sedis is also included. Incongruences between our molecular tree and the current classification can be explained by the banality of convergent evolution and secondary loss in spicule evolution. These processes have taken place many times, in all the major clades, for megascleres and microscleres.
Caring for Children While Working in Agriculture—The Perspectiveof Farmworker Parents

ABSTRACT Access to safe, off-farm childcare is often a challenge for farmworkers with young children and is likely to become an increasingly salient barrier as more agricultural workers migrate together with families and as the number of women entering the agricultural workforce increases. Agriculture is one of the most hazardous industries, and the presence of young children in the workplace puts them at risk. To better understand the current nature of childcare for farmworker families and the challenges to accessing services, this project facilitated in-person surveys with 132 parents in three communities in Florida. A convenience sample that intentionally targeted parents living and working in areas with limited access to Migrant and Seasonal Head Start facilities was used to recruit participants. Most participants reported childcare access as a challenge. They expressed a desire to work in an area based on childcare availability. These findings offer agribusiness leaders important data to consider. They also suggest that industry support of childcare may be an important workforce investment. Findings indicate that high quality, affordable off-farm childcare services could serve as a means for attracting farmworkers to regions currently experiencing labor shortages. Additional research is warranted to explore this subject in diverse geographic areas.
Rapid Establishment of a Regular Distribution of Adult Tropical Drosophila Parasitoids in a Multi-Patch Environment by Patch Defence Behaviour

Females of the larval parasitoid of Drosophila, Asobara citri, from sub-Saharan Africa, defend patches with hosts by fighting and chasing conspecific females upon encounter. Females of the closely related, palearctic species Asobara tabida do not defend patches and often search simultaneously in the same patch. The effect of patch defence by A. citri females on their distribution in a multi-patch environment was investigated, and their distributions were compared with those of A. tabida. For both species 20 females were released from two release-points in replicate experiments. Females of A. citri quickly reached a regular distribution across 16 patches, with a small variance/mean ratio per patch. Conversely, A. tabida females initially showed a clumped distribution, and after gradual dispersion, a more Poisson-like distribution across patches resulted (variance/mean ratio was closer to 1 and higher than for A. citri). The dispersion of A. tabida was most probably an effect of exploitation: these parasitoids increasingly made shorter visits to already exploited patches. We briefly discuss hypotheses on the adaptive significance of patch defence behaviour or its absence in the light of differences in the natural history of both parasitoid species, notably the spatial distribution of their hosts.
Geographic Variation in Advertisement Calls in a Tree Frog Species: Gene Flow and Selection Hypotheses

Background In a species with a large distribution relative to its dispersal capacity, geographic variation in traits may be explained by gene flow, selection, or the combined effects of both. Studies of genetic diversity using neutral molecular markers show that patterns of isolation by distance (IBD) or barrier effect may be evident for geographic variation at the molecular level in amphibian species. However, selective factors such as habitat, predator, or interspecific interactions may be critical for geographic variation in sexual traits. We studied geographic variation in advertisement calls in the tree frog Hyla japonica to understand patterns of variation in these traits across Korea and provide clues about the underlying forces for variation. Methodology We recorded calls of H. japonica in three breeding seasons from 17 localities including localities in remote Jeju Island. Call characters analyzed were note repetition rate (NRR), note duration (ND), and dominant frequency (DF), along with snout-to-vent length. Results The findings of a barrier effect on DF and a longitudinal variation in NRR seemed to suggest that an open sea between the mainland and Jeju Island and mountain ranges dominated by the north-south Taebaek Mountains were related to geographic variation in call characters. Furthermore, there was a pattern of IBD in mitochondrial DNA sequences. However, no comparable pattern of IBD was found between geographic distance and call characters. We also failed to detect any effects of habitat or interspecific interaction on call characters. Conclusions Geographic variations in call characters as well as mitochondrial DNA sequences were largely stratified by geographic factors such as distance and barriers in Korean populations of H. japoinca. Although we did not detect effects of habitat or interspecific interaction, some other selective factors such as sexual selection might still be operating on call characters in conjunction with restricted gene flow.
Diffusion MRI and the detection of alterations following traumatic brain injury

This article provides a review of brain tissue alterations that may be detectable using diffusion magnetic resonance imaging MRI (dMRI) approaches and an overview and perspective on the modern dMRI toolkits for characterizing alterations that follow traumatic brain injury (TBI). Noninvasive imaging is a cornerstone of clinical treatment of TBI and has become increasingly used for preclinical and basic research studies. In particular, quantitative MRI methods have the potential to distinguish and evaluate the complex collection of neurobiological responses to TBI arising from pathology, neuroprotection, and recovery. dMRI provides unique information about the physical environment in tissue and can be used to probe physiological, architectural, and microstructural features. Although well‐established approaches such as diffusion tensor imaging are known to be highly sensitive to changes in the tissue environment, more advanced dMRI techniques have been developed that may offer increased specificity or new information for describing abnormalities. These tools are promising, but incompletely understood in the context of TBI. Furthermore, model dependencies and relative limitations may impact the implementation of these approaches and the interpretation of abnormalities in their metrics. The objective of this paper is to present a basic review and comparison across dMRI methods as they pertain to the detection of the most commonly observed tissue and cellular alterations following TBI.
Enhanced Dominant Sets Clustering by Cluster Expansion

While a vast amount of clustering algorithms of different types are available in the literature, the majority of existing algorithms depend on carefully tuned parameters to obtain satisfactory results. In this paper, we reduce the dependence on parameters on the basis of the dominant sets algorithm. The dominant sets algorithm is a parameter-independent clustering approach, which uses the pairwise data similarity matrix as input. If the data for clustering are in the form of feature vectors, it is necessary to measure the data similarity and build the similarity matrix. With the commonly used Gaussian kernel, the involved parameter is found to exert a significant influence on the clustering results. We study in depth why and how the dominant sets clustering results are influenced by the parameter and attribute the influence to the dominant set definition, which imposes a somewhat too strict constraint on internal similarity. A two-step clustering algorithm is then proposed to solve this problem. First, we transform the similarity matrix by histogram equalization before clustering, and this is shown to eliminate the influence of similarity parameter effectively. In the second step, we expand the clusters to maximize the ratio of internal similarity with respect to external similarity. Our algorithm is designed to achieve the balance between high internal similarity and low external similarity, thereby relieving the dependence on the similarity parameter. In experiments on ten publicly available data sets, our algorithm is shown to perform well in comparison with several other algorithms which benefit from carefully tuned parameters.
Treatment patterns and comparative effectiveness in elderly acute myeloid leukemia patients (age 70 years or older): the Lyon-university hospital experience

Abstract The treatment of very elderly patients (≥70 years) with acute myeloid leukemia remains controversial. We present here 302 patients seen over a 14-year period in order to understand the real-world treatment patterns and outcomes in this patient population. Less than 25% of patients achieved a complete remission. The median overall survival was 12.4, 11.5 and 2.6 months, with a 3-year rates of 27%, 17% and 6%, for non-acute promyelocytic leukemia patients receiving intensive chemotherapy, lower-intensity therapy or best supportive care (BSC), respectively. In all ages, results were not significantly different among patients receiving low-intensity therapy and intensive chemotherapy, but significantly worse in those treated with BSC only. Similarly, intensive chemotherapy and low-intensity therapy gave better survival rates than BSC in patients with favorable- or intermediate-risk cytogenetics and in those with unfavorable cytogenetics (p < 0.0001 and p = 0.04, respectively).
影像引导射频消融治疗肺部肿瘤专家共识（2018年版）

Expert Consensus for Image-guided Radiofrequency Ablation of Pulmonary Tumors (2018 Version) Baodong LIU, Xin YE, Weijun FAN, Xiaoguang LI, Weijian FENG, Qiang LU, Yu MAO, Zhengyu LIN, Lu LI, Yiping ZHUANG, Xudong NI, Jialin SHEN, Yili FU, Jianjun HAN, Chenrui LI, Chen LIU, Wuwei YANG, Zhiyong SU, Zhiyuan WU, Lei LIU Department of Thoracic Surgery, Xuanwu Hospital, Capital Medical University, Beijing 100053, China; Department of Oncolog y, Shandong Provincial Hospital Affiliated to Shandong University, Jinan 250100, China; Imaging and Interventional Center, Sun Yat-sen University Cancer Center, Guangzhou 510060, China; Department of Tumor Minimally Invasive Therapy, Beijing Hospital, Beijing 100005, China; Department of Oncolog y, Fuxing Hospital, Capital Medical University, Beijing 100038, China; Department of Thoracic Surgery, Tangdu Hospital, Fourth Military Medical University, Xi’an 710038, China; Department of Thoracic Surgery, Hohhot First Hospital, Inner Mongolia, Hohhot 010020, China; Department of Interventional Therapy, the First Affiliated Hospital of Fujian Medical University, Fuzhou 350005, China; Department of Thoracic Surgery, 306th Hospital of PLA , Beijing 100101, China; Department of Interventional Therapy, Jiangsu Cancer Hospital, Nanjing 210009, China; Department of Thoracic Surgery, Zhongshan Hospital, Fudan University, Shanghai 200001, China; Department of Tumor Interventional Therapy, Renji Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200001, China; Department of Thoracic Surgery, Chaoyang Hospital, Capital medical University, Beijing 100020, China; Department of Minimally Invasive Interventional Therapy, Shandong Provincial Tumor Hospital, Jinan 250117, China; Department of Interventional Therapy, Cancer Hospital, Chinese Academy of Medical Sciences, Beijing 100020, China; Department of Interventional Therapy, Beijing Cancer Hospital, Beijing 100142, China; Department of Tumor Minimally Invasive Therapy, 307 Hospital of PLA , Beijing 100071, China; Affiliated Hospital of Chifeng University, Chifeng 024005, China; Department of Interventional Radiolog y, Ruijin Hospital, Shanghai Jiaotong University School of Medicine,
A metal-organic framework with ultrahigh glass-forming ability

We have discovered and clarified the ultrahigh glass-forming ability of the metal-organic frameworks—ZIF-62 [Zn(Im2−xbImx)]. Glass-forming ability (GFA) is the ability of a liquid to avoid crystallization during cooling. Metal-organic frameworks (MOFs) are a new class of glass formers (1–3), with hitherto unknown dynamic and thermodynamic properties. We report the discovery of a new series of tetrahedral glass systems, zeolitic imidazolate framework–62 (ZIF-62) [Zn(Im2−xbImx)], which have ultrahigh GFA, superior to any other known glass formers. This ultrahigh GFA is evidenced by a high viscosity η (105 Pa·s) at the melting temperature Tm, a large crystal-glass network density deficit (Δρ/ρg)network, no crystallization in supercooled region on laboratory time scales, a low fragility (m = 23), an extremely high Poisson’s ratio (ν = 0.45), and the highest Tg/Tm ratio (0.84) ever reported. Tm and Tg both increase with benzimidazolate (bIm) content but retain the same ultrahigh Tg/Tm ratio, owing to high steric hindrance and frustrated network dynamics and also to the unusually low enthalpy and entropy typical of the soft and flexible nature of MOFs. On the basis of these versatile properties, we explain the exceptional GFA of the ZIF-62 system.
Nutrient adequacy in Spanish children and adolescents

The nutritional intakes of the Spanish child and adolescent population are presented, as well as the population at risk of inadequate nutrient status. A random sample of 3534 people aged 2–24 years were interviewed between 1998 and 2000. Interviews included two 24 h recalls and a general questionnaire and anthropometric evaluations for the entire sample. After excluding under-reporters (18·7 %), the final sample was 2855 individuals (1348 males and 1507 females). The average intake of energy was 9543 kJ in males and 7804 kJ in females, with important variations seen by age group. Energy intake increased with age in both sexes until 14–17 years, which also applied to almost all of the nutrients studied, with the exception of vitamin C. A decreasing trend in the percentage of energy from carbohydrates was seen in both sexes. At the low socioeconomic level, it was observed that all nutrient intakes were less favourable when compared with higher socioeconomic levels. Nutrients with associated intakes below one-third of the Spanish recommended nutrient intake (RNI) included vitamin D (42 % of the sample) and folate (10 % of females), and the percentages falling below two-thirds of the RNI corresponded to: vitamin D (97 %), vitamin A (60 %), vitamin E (54 %), folate (58 % of females), Fe (23 % of females), vitamin C (8 %), Mg (4·5 %), Ca (5 % of females) and vitamin B6 (5 % of females). Adolescents aged between 14 and 17 years was the group with the highest nutritional risk, especially among girls. Nutritional adequacy in Spanish children was, in general, adequate, although it is necessary to analyse the implications of high inadequate intakes of vitamins D, E and A, which means that the current recommended intakes should be reconsidered. It should be noted that folate levels should be doubled in the near future.
Periodic noise analysis of electric circuits: Artifacts, singularities and a numerical method

In this paper it is shown that a numerical method largely adopted for the simulation of noise in autonomous circuits is affected by singularities that manifest when the frequency at which the noise analysis is carried out approaches a harmonic of the autonomous circuit. The resulting noise power spectral density (PSD) is thus characterized by spurious spikes. The presence of these singularities is for the first time justified from an analytical standpoint and their effects are shown by simulating some oscillators, employed as benchmarks. Furthermore, the presented approach justifies the 1/(fs−f)2 shape of the PSD of noise at the output when the fs frequency approaches the f fundamental of a stable oscillator and the 1/|fs−f|3 shape when the effects of flicker noise are manifest. Copyright © 2009 John Wiley & Sons, Ltd.
The Secondary Traumatic Stress Scale: Confirmatory Factor Analyses With a National Sample of Victim Advocates

Secondary traumatic stress (STS) is a pattern of psychological symptoms that approximates the symptoms of posttraumatic stress disorder (PTSD) and occurs in professionals who are exposed to individuals who have experienced trauma. While victim advocates are frontline health professionals who are trained to support victims of crime and interpersonal violence and are at risk for developing STS, they have been largely neglected in the extant literature on STS. The STS Scale (STSS) is a 17-item self-report questionnaire utilized to assess frequency of symptoms of intrusion, avoidance, and arousal, specifically related to providing services to victims of trauma. The purpose of this study was to investigate the psychometric properties of the STSS with a sample of victim advocates (N = 135) using confirmatory factor analysis (CFA). Results indicated that both a single-factor model and three-factor model were equivalent. This study represents a first attempt to validate a measure of STS among victim advocates, a unique and understudied population who are at risk for developing STS given their work with individuals who have experienced interpersonal violence. Establishing effective, easy to administer, and efficient measures of STS is important given that this population encounters secondary trauma on a regular basis in the context of their job. While additional theoretical work regarding the construct of STS is needed, the STSS did demonstrate high reliability with this population and thus can be used as part of the assessment of STS among victim advocates.