Miracle-dz/UniFAR-FTUs huggingface dataset:
Nonlinear formation control for a cooperative load pushing

The main issue addressed in this work is multi-robot formation control for cooperative load pushing. Specifically, the principal concern is how to achieve and maintain a formation of two or more inexpensive robots to keep them in contact with the load and coordinate their movement in order to perform the task. Also a final position controller is implemented for defining the load motion towards a desired position. The presented results are encouraging and motivate the future steps.
Gadobenate dimeglumine‐enhanced magnetic resonance imaging of intracranial metastases: Effect of dose on lesion detection and delineation

Seventy‐four patients with one to eight proven intraaxial metastatic lesions to the brain received a total gadobenate dimeglumine dose of 0.3 mmol/kg of body weight, administered as three sequential bolus injections of 0.1 mmol/kg, at 10‐minute intervals over a 20‐minute period. Quantitative and qualitative assessments of efficacy were performed after each injection and a full evaluation of safety was conducted. Cumulative dosing produced significant (P < 0.01) dose‐related increases in lesion‐to‐brain (L/B) ratio and lesion signal intensity (SI) enhancement. Two independent, blinded assessors noted additional lesions, compared to unenhanced images in 31% and 33%, 49% and 42%, and 50% and 48% of patients after each cumulative dose, respectively. Significantly more lesions were noted after the first injection, compared to unenhanced images (P = 0.002 and P < 0.001; assessors 1 and 2, respectively), and after a second injection, compared to the first (P < 0.001 and P = 0.039; assessors 1 and 2, respectively). Neither assessor noted significantly more lesions after the third injection. For patients with just one lesion observed on unenhanced T1‐ and T2‐weighted images, additional lesions were noted by assessors 1 and 2 for 27% and 26%, 48% and 35%, and 42% and 41% of patients, respectively, following each injection. Contemporaneously, diagnostic confidence was increased and lesion conspicuity improved over unenhanced magnetic resonance imaging (MRI). For patients with one lesion observed after 0.1 mmol/kg of gadobenate dimeglumine, additional lesions were noted for 24% and 17% of patients (assessors 1 and 2, respectively) following a second 0.1 mmol/kg injection. Only assessor 2 noted additional lesions following the third 0.1 mmol/kg injection. The findings of on‐site investigators concurred with those of the two off‐site assessors. No safety concerns were apparent. J. Magn. Reson. Imaging 2001;14:525–539. © 2001 Wiley‐Liss, Inc.
On the Order of the Fractional Laplacian in Determining the Spatio-Temporal Evolution of a Space-Fractional Model of Cardiac Electrophysiology

Space-fractional operators have been used with success in a variety of practical applications to describe transport processes in media characterised by spatial connectivity properties and high structural heterogeneity altering the classical laws of diffusion. This study provides a systematic investigation of the spatio-temporal effects of a space-fractional model in cardiac electrophysiology. We consider a simplified model of electrical pulse propagation through cardiac tissue, namely the monodomain formulation of the Beeler-Reuter cell model on insulated tissue fibres, and obtain a space-fractional modification of the model by using the spectral definition of the one-dimensional continuous fractional Laplacian. The spectral decomposition of the fractional operator allows us to develop an efficient numerical method for the space-fractional problem. Particular attention is paid to the role played by the fractional operator in determining the solution behaviour and to the identification of crucial differences between the non-fractional and the fractional cases. We find a positive linear dependence of the depolarization peak height and a power law decay of notch and dome peak amplitudes for decreasing orders of the fractional operator. Furthermore, we establish a quadratic relationship in conduction velocity, and quantify the increasingly wider action potential foot and more pronounced dispersion of action potential duration, as the fractional order is decreased. A discussion of the physiological interpretation of the presented findings is made.
Evolution of technical activity in various playing positions, in relation to match outcomes in professional soccer

The study presented below aimed to examine the position-specific evolution of technical activity among soccer players and how it is related to match outcomes over three consecutive domestic seasons in Germany’s Bundesliga. The research was based on a sample of 13,032 individual match observations of 556 soccer players during the 2014/2015, 2015/2016 and 2016/2017 seasons. These players were classified into five positional roles: central defenders (CD), full-backs (FB), central midfielders (CM), wide midfielders (WM) and forwards (F). The activity of the players was analysed using the Impire AG motion analysis system. Our study indicates that over the course of the three seasons: 1) the total numbers of shots by CMs decreased in the case of won or drawn matches; 2) the number of passes by CD players increased in matches won, and by CM and WM players in matches won, drawn and lost, whereas percentage pass accuracy increased at the CM position in won and drawn matches; 3) players at each position engaged in a substantially smaller number of duels, no matter what the match outcome, while the percentage of encounters won in subsequent seasons decreased among CD, and increased among WM in matches won and at F positions in both won and drawn matches. This research clearly shows that the evolution of technique among professional soccer players is heading in the direction of increased accuracy, with a simultaneous stabilisation of, or even a decline in, the number of activities engaged in.
Loss reduction of laminated core inductor used in on-board charger for EVs

A laminated core has advantages such as low loss, high permeability, and high saturation flux density. For inductor applications, an air gap has to be inserted into the magnetic circuit to avoid saturation at lower magnetic field strengths. However, when an air gap is inserted, fringing flux leaks out of the air gap and concentrates on the surface of the core. As a result, the iron loss increases to 292% compared with an ungapped structure, and the inductance characteristic deteriorates. Although a chamfered structure known as a prior art reduces the iron loss to 147%, there is room for improvement. In this paper, we propose a method for optimizing the shape of the air gap. Consequently, the proposed structure reduces the iron loss to 113% and improves the inductance characteristic. The proposed method helps increase the efficiency and reduce the size of the on-board charger.
Poverty and the extent of child obesity in Canada, Norway and the United States

The goal of this paper is to compare the extent of child obesity in Canada, Norway and the United States. As child poverty is an important correlate of child obesity, we wish to examine the potential role of international differences in child poverty in explaining international differences in the extent of child obesity. We use three representative microdata surveys containing parental reports of child height and weight collected in the mid‐1990s in Canada, Norway and the US. We calculate both the prevalence and proportional severity of child obesity for 6–11‐year‐old children in each country, and represent the ‘extent’ of obesity diagrammatically. Differences in patterns of child poverty are similarly depicted. Obesity extent is also compared for poor and non‐poor children in Canada and the US. Finally, child obesity in the three countries is compared using only non‐poor children where we find that the extent of child obesity is much lower in Norway than in Canada or the US. The pattern apparent for obesity is remarkably similar to that found for child poverty. In Canada and especially in the US, we find a much greater extent of obesity for poor than non‐poor children. However, when we compare only non‐poor children in the three countries, although the magnitude of difference is smaller, it remains clear that Norwegian children are much less likely to be obese. Policy and research directed towards reducing the extent of child obesity in both Canada and the US should pay particular attention to issues of child poverty.
Premorbid Literacy, and the Pattern of Subsequent Aphasia [Résumé]

blood vessels there are phagocytes containing both sudanophilic material and some slender anisotropic crystals. The deepest layers of the cortex show loss of nerve cells and reactionary astrocytic gliosis though most of the cortex appears healthy. The leptomeninges and subarachnoid vessels are normal. This appears to be a subacute or chronic process, the exact cause and nature of which is not revealed by the specimen. It does not have the anatomical delimitation of Schilder's disease. A vascular etiology cannot be excluded. "
Cultivation and comparison of BHK-21 anchorage semi-dependent cell line in different production systems

Aim: The investigation of the different culture systems in order to get high yield of baby hamster kidney (BHK) cell line. Materials and Methods: Different cultivation systems, vibrofermentor and 5-L stirred tank bioreactors, have been used for the production of BHK cell line. The production systems were evaluated with respect to pH, temperature, viable cell number, aeration rate and stirring speed. Results: BHK cells were successfully cultivated in vibrofermentor and stirred tank bioreactor (STR) systems. In addition, higher cell concentration was obtained with low aeration rate (0.005 vvm) comparing to those of 0.02 and 0.05 vvm. The cultivation in STR can be operated with low aeration rate due to decrease the expenditure and improve the cell productivity. Conclusion: In order to improve the cell yield of the anchorage semi-dependent cell line in pilot scale, it should be preferred that the cells are firstly adapted to suspension culture by vibrational stirring and then be cultivated in stirred tank bioreactor which is operated at low aeration rate. These results showed consistency with the previous studies.
Experimental evidence of crystalline hillocks created by irradiation of CeO2 with swift heavy ions: TEM study

In this study, CeO2 was irradiated with 200 MeV Au ions at oblique incidence. Observation of as-irradiated samples by transmission electron microscopy (TEM) shows that hillocks are created not only at the wide surfaces, but also at the crack faces of the thin samples. Since the hillocks created at the crack faces can be imaged by TEM, their shape and crystallographic features can be revealed. From the images of hillocks created at the crack faces, many of the hillocks are found to be spherical. We present the first experimental evidence that hillocks created for CeO2 irradiated with swift heavy ions have a crystal structure whose lattice spacing and orientation coincide with those of the matrix. The mechanism of spherical crystalline hillock formation is discussed based on the present results.
Assessment of atherosclerosis by whole-body magnetic resonance angiography.

The aim of this study was to create a scoring system for whole-body magnetic resonance angiography (WBMRA) that allows estimation of atherosclerotic induced luminal narrowing, and determine whether the traditional cardiovascular (CV) risk factors included in the Framingham risk score (FRS) were related to this total atherosclerotic score (TAS) in an elderly population. A group of 306 subjects, aged 70, were recruited from the general population and underwent WBMRA in a 1.5-T scanner. Three-dimensional sequences were acquired after administration of one i.v. injection of 40 ml gadodiamide. The arterial tree was divided into five territories (carotid, aorta, renal, upper and lower leg) comprising 26 vessel segments, and assessed according to its degree of stenosis or occlusion. FRS correlated to TAS (r=0.30, P < 0.0001), as well as to the atherosclerotic score for the five individual territories. Of the parameters included in the FRS, male gender (P < 0.0001), systolic blood pressure (P=0.0002), cigarette pack-years (P=0.0008) and HDL cholesterol (P=0.008) contributed to the significance. A scoring system for WBMRA was created. The significant relation towards traditional CV risk factors indicates that the proposed scoring system could be of value for assessing atherosclerotically induced luminal narrowing.
Elective repeat cesarean delivery versus trial of labor: a meta-analysis of the literature from 1989 to 1999.

OBJECTIVE The aim of this study was to compare a trial of labor with elective repeat cesarean delivery among women with previous cesarean delivery. STUDY DESIGN We searched MEDLINE and EMBASE databases from 1989 through 1999 with the following terms: vaginal birth after cesarean delivery, trial of labor, trial of scar, and uterine rupture. We included all controlled trials from developed countries in which the control group had been eligible for a trial of labor. Outcomes of interest were uterine rupture, hysterectomy, maternal febrile morbidity, maternal mortality, 5-minute Apgar score <7, and fetal or neonatal mortality. We computed pooled odds ratios for each outcome. RESULTS The search strategy identified 52 controlled studies, 37 of which were excluded because many of the control subjects were not eligible for a trial of labor. Fifteen studies with a total of 47,682 women were included. Uterine rupture occurred more frequently among women undergoing a trial of labor than among those undergoing elective repeat cesarean delivery (odds ratio, 2.10; 95% confidence interval, 1.45-3.05). There was no difference in maternal mortality risk between the 2 groups (odds ratio, 1.52; 95% confidence interval, 0.36-6.38). Fetal or neonatal death (odds ratio, 1.71; 95% confidence interval, 1.28-2.28) and 5-minute Apgar scores <7 (odds ratio, 2.24; 95% confidence interval, 1.29-3.88) were more frequent in the trial of labor group than in the control group. Mothers undergoing a trial of labor were less likely to have febrile morbidity (odds ratio, 0.70; 95% confidence interval, 0.64-0.77) or to require transfusion (odds ratio, 0.57; 95% confidence interval, 0.42-0.76) or hysterectomy (odds ratio, 0.39; 95% confidence interval, 0.27-0.57). CONCLUSION A trial of labor may result in small increases in the uterine rupture rate and in fetal and neonatal mortality rates with respect to elective repeat cesarean delivery. Maternal morbidity, including febrile morbidity, and the need for transfusion or hysterectomy may be reduced with a trial of labor.
Temporal profile and clinical significance of serum neuron-specific enolase and S100 in ischemic and hemorrhagic stroke

Abstract Background: Neuron-specific enolase (NSE) and S100 protein are implicated in several brain injuries, including stroke. Our objective was to analyze the temporal profile and the clinical significance of NSE and S-100 in acute ischemic (IS) and intracerebral hemorrhage (ICH). Methods: We studied 224 patients with IS and 44 patients with ICH. Computerized tomography (CT) scans were performed to assess infarct volume. Stroke severity was evaluated using the National Institute of Health Stroke Scale (NIHSS), and functional outcome at 3 months with the modified Rankin Scale (mRS). Serum NSE and S100 protein were measured using an electrochemiluminescence-immunoassay. Results: Peak values were found at 72 h for NSE and at 24 h for S100 in IS. For ICH, peak values were found at 24 h for both NSE and S100. At these time intervals S100 and NSE correlated with the NIHSS score and were independently associated with poor outcome. Conclusions: High serum NSE and S100 are associated with poor outcome in IS, and high serum NSE is associated with poor outcome in ICH. These findings suggest the potential utility of NSE and S100 as prognostic markers for acute stroke. Clin Chem Lab Med 2009;47:1513–8.
High-Efficiency Silicon-Embedded Coreless Coupled Inductors for Power Supply on Chip Applications

In this paper, high-efficiency silicon-embedded coreless coupled inductors are demonstrated for power supply on chip applications. The embedded coupled inductors have two interleaved thick inductor coils embedded in the bottom layer of the Si substrate and four copper vias formed in the top substrate layer. The embedded coupled inductors can be stacked underneath the active circuitry for compact on-chip integration, while small resistances can be achieved with the thick embedded coils, which lead to high efficiency. As a demonstration, embedded coupled inductors with a small area of 0.5 mm2 were designed and fabricated according to the on-chip dc-dc converter with the highest reported efficiency. The fabricated embedded coupled inductors show a much higher efficiency of 93% compared to the 84% efficiency of the originally used on-substrate coupled inductors, allowing the total converter loss to be reduced by 38% and the converter efficiency to be improved from 78% to 85%.
Using phage as a highly specific antibiotic alternative against Methicillin Resistance Staphylococcus aureus (MRSA)

Misuse of antibiotics in humans and animals often leads to the development ofmultidrug resistance (MDR)bacteria. Resistance can occur within a few years of novel antibiotics being introduced. Lytic bacteriophage (phage) are a kind of virus that undergo a cyclical lifestyle wherein they infect and replicate through the use of a bacterial host cell and cause cell lysis. Phage recognizes specific receptors on their host cell to attach to, insert their DNA and take over their host's molecular machinery. These receptors only exist on the surface of specific bacterial host cells and are often not present on other non-specific bacteria and not especially on the surfaces of eukaryotic cells. The mechanisms by which phage can destroy bacteria are different from antibiotics; phage can lyse MDR resistant bacteria without being affected by hydrolytic enzymes or ribosomal variations that's mean unlike drug resistance mechanism which bacteria can destroy the drug before can inter the bacteria cell, the phage not effected with such enzyme.
Solar-Blind p-i-n Photodetectors Formed on ${\rm SiO}_{2}$-Patterned n-GaN Templates

Al0.45Ga0. 55N/GaN solar-blind p-i-n photodiodes (PDs), fabricated by selective growth on SiO2 patterned n-GaN templates, are demonstrated in this paper. This selective-area-regrowth technique could lead to a reduction of tensile strain in the Al0.45Ga0. 55 N/GaN epitaxial layers, thus alleviating the formation of cracks and reducing the dark current. The dry etching process was not required to expose the underlying layer before the formation of ohmic contact electrodes, simplifying the process tremendously. Compared with conventional solar-blind AlGaN/GaN p-i-n PDs, the proposed devices had lower dark current and higher detectivity. The experimental PDs exhibited a typical zero-bias peak responsivity of around 180 mA/W at 250 nm. This corresponded to quantum efficiency of around 90%. In addition, a nearly flat spectral response at the short-wavelength regions (220-270 nm) was observed. The typical ultraviolet-to-visible (250/450 nm) spectral rejection ratio at zero-bias was over four orders of magnitude. Typical specific detectivity at an incident wavelength of 250 nm was approximately 1.4×1013 cm Hz1/2W-1.
Sülforafanın ratlarda asetaminofenin-indüklediği nefrotoksisitede sistatin-c düzeylerine etkisi

Amac: Canlilarin kimyasallara ve ilaclara maruziyeti siklikla karaciger ve bobrek toksisitesi ile sonuclanir. Toplum ve hastane kaynakli bobrek hastaliklarinin onemli ve buyuk bir kismini ilaclar olusturmaktadir. Calismamizda, asetaminofen (APAP) ile ratlarda induklenen nefrotoksisitede sulforafanin (SFN) sistatin-C duzeyleri ve lipid peroksidasyonu uzerine olan etkilerinin arastirilmasi amaclanmistir. Yontemler: 36 Sprague-Dawley sican her bir grup esit hayvan icerecek sekilde dort gruba ayrildi. Gruplarimiz, kontrol grubu, SFN grubu, APAP grubu ve APAP+SFN grubundan olusmaktadir. SFN ve APAP+SFN grubundaki sicanlara tedavi icin uc gun suresince 500 μg/kg dozunda SFN oral gavaj yoluyla verildi. APAP ve APAP+SFN grubundaki sicanlara hepatotoksisite olusturmak icin APAP sicak salin icerisinde cozuldu ve calismanin son gununde 1g/kg olacak sekilde tek doz oral gavaj yoluyla uygulandi. APAP+SFN grubunda, APAP uygulamasi SFN uygulamasindan uc saat sonra yapildi. APAP uygulamasindan 24 saat sonra sicanlar sakrifiye edildi. Bulgular: APAP uygulamasinin serum ure, kreatinin, LDH ve BUN duzeylerini kontrol grubuna gore anlamli derecede arttigi gozlemlenmistir (p<0.001). SFN uygulamasinin sistatin C duzeylerini ve lipid peroksidasyonunu APAP grubuna gore azalttigi gozlemlenmistir (p<0.05). Sonuc: Sulforafanin, asetaminofen kaynakli nefrotoksisitede tedavi protokolune eklenmesinin yarar saglayacagini dusunmekteyiz. Bobrek hastaliklarinda onemli bir rol oynayan sistatin C’nin bir biyomarker olarak rutine girebilmesi icin cesitli calismalara ihtiyac vardir
Beta hemolytic streptococcal endocarditis: predominance of non‐group A organisms

Identification of beta hemolytic streptococci (BHS) as group A or non-group A on the basis of bacitracin sensitivity rather than Lancefield serogrouping may lead to misidentification of the pathogen. In four recent cases of endocarditis due to BHS, the pathogens initially were identified as group A; Lancefield serogrouping showed all four to be group G. All four patients presented with a syndrome characteristic of acute bacterial endocarditis. Review of all cases of endocarditis at our institution for the past five years showed none due to group A BHS. In 166 previously reported cases of endocarditis due to BHS, 68 pathogens were serogrouped: 53 belonged to groups B, C, G, or H; only five were group A. Our four cases and review of the literature demonstrate the need for Lancefield serogrouping in serious beta hemolytic streptococcal infections, rather than reliance on bacitracin sensitivity.
Non-volatile domain nucleation and growth in multiferroic BiFeO3 films

We have presented a systematical study of the domain nucleation and growth behaviors in multiferroic BiFeO3 (BFO) films. Both the ferroelectric and the ferroelastic switching dynamics were investigated. Several environmental parameters, including the polarization orientations, the monodomain-like matrix, and the ordered domain walls as local boundaries, were well controlled by thin-film strain engineering through changing the vicinal angles of the substrates. The tip-based domain dynamics was studied by subsequent piezoresponse force microscope (PFM) imaging of the domain evolution under external voltage pulses. For the nanodomains written in the monodomain-like environment, the domain wall performed the thermal activated motion. The as-grown 71° domain walls can act as pinning centers for the ferroelectric domain growth driven by low fields; moreover, ferroelastic nucleation near a 71° domain wall will cause the deformation of the domain wall. The ferroelastic domain growth possessed relatively small activation fields, and therefore usually performed non-activated motion. This study revealed the effects of local environments on the dynamics forming nanoscale domains, and opened a pathway for applications in novel non-volatile functional devices.