Miracle-dz/UniFAR-FTUs huggingface dataset:
Electromagnetic Design of Broadband Antenna Feed Systems for the Northern Cross Radio Telescope

This contribution deals with the design and implementation of broadband antenna feed systems for the cylindrical offset parabolic reflector of the Northern Cross radio telescope, in the framework of the Square Kilometer Array Design Study (SKADS-FP6) project. Such feed systems have to maintain a proper radiation pattern as well as a good matching condition in the operative frequency band (120-430 MHz) in order to efficiently feed the main reflector. This task is not trivial since more than octave bandwidths are required. Several feed system designs have been carried out on the basis of different architectures such as log periodic antenna arrays, linear arrays of fat dipoles and branched Vivaldi (tapered slot) radiators inside a wired subreflector. Each configuration provides a different trade-off between electrical performance and manufacturing complexity. The most significant computed and experimental results are discussed. Some of the proposed configurations have already been mounted on the Northern Cross Radio Telescope. The adopted mechanical and electronic solutions such as wiring, canalization, amplifier housing and protection are reported. A preliminary study on the application of Focal Plane Arrays on the E/W Arm is also discussed.
Comparison of clinical features on admission between coronavirus disease 2019 and in uenza A among children: a retrospective study in China

Feng Liang Guangzhou Women and Children's Medical Center Xianfeng Wang The Third People's Hospital of Shenzhen Hui Li Wuhan children's hospital Jun Chen The Third People's Hospital of Shenzhen Lei Liu The Third People's Hospital of Shenzhen Jianbo Shao Wuhan children's hospital Yi Xu Guangzhou Women and Children's Medical Center Liya He Guangzhou Women and Children's Medical Center Huiying Liang Guangzhou Women and Children's Medical Center Kuanrong Li (  lik@gwcmc.org ) Guangzhou Women and Children's Medical Center Sitang Gong Guangzhou Women and Children's Medical Center Huimin Xia Guangzhou Women and Children's Medical Center
Mediating Asian-ness: How and why does Asian Identity Salience vary by Biracial Status?

The following study explores how and why Asian identity salience may vary between biracial and monoracial Asians. This study further aims to find potential mediators—including daily Asian contact, linked fate, group solidarity, and microaggressions—that might explain any group differences in Asian identity salience. I used the 2016 Post-Election National Asian American Survey to explore these research aims. Contrary to expectations, I found that biracial Asians have higher Asian identity salience than monoracial Asians. As expected, linked fate and microaggressions were positively associated with Asian identity salience. Surprisingly, daily Asian contact was negatively associated and group solidarity was not significantly associated with Asian identity salience. Both microaggressions and daily Asian contact can help us understand the higher levels of Asian identity salience among biracial Asians compared to monoracial Asians. In contrast, linked fate suppressed these group differences.
Multi ‐ Product Lactic Acid Bacteria Fermentations :

Industrial biotechnology is a continuously expanding field focused on the application of microorganisms to produce chemicals using renewable sources as substrates. Currently, an increasing interest in new versatile processes, able to utilize a variety of substrates to obtain diverse products, can be observed. A robust microbial strain is critical in the creation of such processes. Lactic acid bacteria (LAB) are used to produce a wide variety of chemicals with high commercial interest. Lactic acid (LA) is the most predominant industrial product obtained from LAB fermentations, and its production is forecasted to rise as the result of the increasing demand of polylactic acid. Hence, the creation of new ways to revalorize LA production processes is of high interest and could further enhance its economic value. Therefore, this review explores some co‐ products of LA fermentations, derived from LAB, with special focus on bacteriocins, lipoteichoic acid, and probiotics. Finally, a multi‐product process involving LA and the other compounds of interest is proposed.
Life and Death of Cardiac Stem Cells

The recognition that myocyte mitosis occurs in the fetal, neonatal, adult, and hypertrophied heart and that a pool of primitive, undifferentiated cells is present in the myocardium has put forward a different view of the biology of the heart. The new paradigm suggests that myocyte formation is preserved during postnatal life, in adulthood or senescence, pointing to a remarkable growth reserve of the heart throughout the course of life of the organism. This article reviews a large body of novel information, which has been obtained in the last 2 decades, in favor of the notion that the mammalian heart has the inherent ability to continuously replace its parenchymal cells and that this unexpected characteristic has important implications in understanding myocardial homeostasis, cardiac aging, and tissue repair.
PII: S0003-4878(00)00053-3

There is growing concern over the neurotoxic effects of chronic occupational exposure to metal fume produced by welding. Elevated iron and manganese levels in the brain have been linked to an increase in lipid peroxidation, dopamine depletion and predisposition to the development of a Parkinson’s type condition in advanced cases. Chemical and toxicological analysis of selected welding fumes, generated by model processes, were used in order to evaluate their potential to release solutes that promote oxidation of dopamine and peroxidation of brain lipids in cell free assays. This study compared the effect of shield gas, electrode type and voltage/currect upon the dopamine and brain lipid peroxidation potential of selected welding fume, obtained from metal inert gas (MIG) welding systems. Overall, fume extracts were found to enhance dopamine oxidation and inhibit lipid peroxidation. Significant differences were also found in the oxidising potential of fume generated under differing process conditions; it may therefore be possible to determine the potential neurotoxicity of fumes using this system.  2001 British Occupational Hygiene Society. Published by Elsevier Science Ltd. All rights reserved
Effects of C02-Enrichment and of Aminoacetonitrile

Photoautotrophic calli of Nicotiana plumbaginifolia were grown for 3 weeks under two CO2 concentrations (500 and 20,000 microliters of CO2 per liter). Calli cultured at high CO2 exhibited a two-fold higher rate of growth. At CO2 test levels, these calli were characterized by a lower net photosynthetic capacity than calli cultured at low CO2. This diminution due to CO2 adaptation could be ascribed to a 170% stimulation of dark respiration, a 40% decrease in total ribulose-1,5-bisphosphate carboxylase (Rubisco) activity, and also to a feedback inhibition of photosynthesis: high CO2 grown calli contained about 5.5-fold more sucrose and three-fold less orthophosphate (Pi) than low CO2 grown calli. Whether the decrease in Rubisco activity is related to the accumulation of sucrose and to the Pi limitation is discussed. Both calli exhibited a Warburg-effect showing the existence of active photorespiration at low CO2. In calli grown at low CO2 with 5 millimolar aminoacetonitrile (AAN), an inhibitor of the glycolate pathway, fresh weight decreased by 25% and chlorophyll content by 40%, dark respiration increased by 50% and net CO2 uptake decreased by about 60% at 340 microliters of CO2 per liter and 35% at 10,000 microliters of CO2 per liter. In these calli, glutamine and glutamate contents were half of control calli. In contrast, AAN did not provoke any noticeable effect in calli grown at high CO2. In photoautotrophic calli, the inhibition of the glycolate pathway by AAN results in severe perturbations in glutamate metabolism and in chlorophyll biosynthesis. In vitro photoautotrophic calli cultures represent a system for studying photosynthesis of higher plants (13). These cultures generally require for sustained growth high CO2 levels (more than 1%). In these conditions, photorespiration is probably not expressed during growth because of the inhibition of the oxygenase function of Rubisco' by high CO2. Consequently, few reports dealed with the photorespiratory activity of photoautotrophic cultures (13). However, cultures grown at high CO2 have the enzymatic capacity to carry out photorespiration at low C02: McHale et al. (19) observed a Warburg-effect in Nicotiana tabacum photoautotrophic calli; an accumulation of glycolate was noticed in similar calli 'Abbreviations: Rubisco, ribulose-1,5-bisphosphate carboxylase; a-HPMS, a-hydroxy-2-pyridinemethanesulfonate; AAN, aminoacetonitrile; PMSF, phenylmethyl-sulfonylfluoride; RuBP, ribulose-1,5bisphosphate. 549 treated with a-HPMS, an inhibitor of the glycolate oxidase in the glycolate pathway (3). In some cases, growth of photoautotrophic cultures in atmospheric air was reported (19, 22). In the present work, we have used photoautotrophic Nicotiana plumbaginifolia protoplast-derived calli, grown either under photorespiratory conditions (0.05% C02) or not (2% C02) (24), to investigate the long-term effects of C02-enrichment and of AAN, an inhibitor of the glycolate pathway, on growth and photosynthesis. MATERIALS AND METHODS
OP-ICVA210081 1..8

OBJECTIVES: The postoperative risk factors for electroencephalogram(EEG) abnormalities after paediatric cardiopulmonary bypass (CPB) remain to be identified. We investigated the characteristics of EEG abnormalities and risk factors in routine clinical management post-CPB. The first two authors contributed equally to this work. EX TR A C O R P O R EA L TE C H N O LO G IE S VC The Author(s) 2021. Published by Oxford University Press on behalf of the European Association for Cardio-Thoracic Surgery. All rights reserved. Interactive CardioVascular and Thoracic Surgery (2021) 1–8 ORIGINAL ARTICLE doi:10.1093/icvts/ivab081 D ow naded rom http/academ ic.p.com /icvts/advance-art.1093/icvts/ivab081/6212252 by gest on 07 April 2021 METHODS: EEG and cerebral oxygen saturation (ScO2) were monitored in 96 patients (aged 3 days, 37 months, median 5 months) for 72 h postCPB. Clinical measurements included 4-hourly arterial and central venous pressure, arterial blood gases, doses of inotropic and vasoactive drugs, daily C-reactive protein (CRP) and NT-proB-type Natriuretic Peptide (NT-proBNP). Demographics, STAT categories and outcomes (duration of mechanical ventilation,CICU stay) were recorded. Un RESULTS: Seizures occurred in 20 patients (20.8%) beginning at 0–48 hand lasting 10 min--31 h; background abnormalities occurred in 67 (69.8%) beginning at 0–8 h and lasting 4–48 h. Patients with EEG abnormalities had worse outcomes. In univariable regression, seizures positively correlated with STAT categories, CPB time, temperature, blood pressure, central venous pressure, NT-proBNP, CRP, lactate and epinephrine, negatively with ScO2 and PaCO2 (P < 0.001 for lactate and epinephrine, P < 0.1 for the remaining). The degree of background abnormalities positively correlated with STAT categories, CPB time, operative time, central venous pressure, milrinone, negatively with blood pressure (P = 0.0003–0.087); it negatively correlated with lower dose of epinephrine (P < 0.001) and positively with higher dose (P = 0.03l). In multivariable regression, seizures positively correlated with epinephrine, lactate and temperature; the background abnormality correlations remain significant except for milrinone and operative time (P < 0.001 for epinephrine, P < 0.05 for the remaining). CONCLUSIONS: Numerous perioperative risk factors are associated with EEG abnormalities post-CPB. The most significant and consistent risk factor is epinephrine.
Diffusion of phenolic compounds through an HDPE geomembrane

The experimental results obtained regarding diffusion through a high density polyethylene geomembrane of phenol, o-cresol, p-cresol, 2,4-xylenol, 3,4-xylenol, 2-chlorophenol, 4-chlorophenol, 2,4-dichlorophenol, 2,4,6-trichlorophenol, 2,3,4,6-tetrachlorophenol, 2,3,5,6-tetrachlorophenol, pentachlorophenol and bisphenol A are presented. Partitioning coefficients range from 0.3 to 205 respectively for phenol and pentachlorophenol. Diffusion coefficients lie in the range 1.1×10 to 4.3×10m/s respectively for 2-methylphenol and bisphenol A. The effect of aqueous solubility, n-octanol/water partitioning coefficient, molecular diameter and molecular weight on partitioning coefficient, diffusion coefficient and permeation coefficient were studied. Different trends from the ones previously given in the literature for volatile organic compounds (VOCs) were observed. An increase in the number of chlorine atom on the phenolic nucleus results in an increase of the partitioning coefficient and permeation coefficient, probably linked to the polarity of the molecules under study.
Quality of computer enhanced totally endoscopic coronary bypass graft anastomosis – comparison to conventional technique

Objective: Aims of the study were to develop an endoscopic technique to perform robot assisted coronary anastomoses, using a computer enhanced telemanipulator and to compare the quality of the anastomoses with those performed using a standard open technique. M thods: A surgical telemanipulator with two instrument arms and a central videoscopic arm was used to perform remote endoscopic coronary artery bypass grafting on isolated porcine hearts. The end effectors and the videoscope were placed through three 10 mm port incisions. All anastomoses (Cx to LAD) were performed using a double armed 7–0 Prolene suture of 5 or 7 cm in length. All operations were performed remotely from the master console using ten times magnification, tremor filtering and 3:1 motion scaling. Initially 20 anastomoses were performed to develop and train the technique. Then, 20 robot-assisted anastomoses (group I) were compared with 20 anastomoses using a standard open parachute technique (group II). All anastomoses were checked for patency and leakage. Patency was confirmed by bench angiography. After fixation, all anastomoses were macroscopically evaluated for patency, intactness, alignment, intimal tears and dehiscence. Both angiographic and pathologic evaluations were performed with the examiners blinded to the technique of anastomosis. Results: In the initial feasibility series, time for anastomosis was 18.2 ± 9.1 min. All anastomoses were patent although minor stenoses were found in two and minor leakage was noted in five anastomoses. In the second series all anastomoses were patent, not leaking and showed a good run-off at angiography. Mean time for anastomosis in group I was 12.8 ± 2.4 min as compared with 6.3 ± 0.2 min in group II (P , 0.001), respectively. Macroscopic analysis demonstrated equal quality for both groups. There were no stenoses, no intimal tears and no dehiscences. All anastomoses had a normal alignment and intact suture lines. Conclusion: Using the Intuitive surgical telemanipulator, it is possible to remotely perform endoscopic coronary anastomoses with the same quality as with an open standard technique after a brief learning curve. This will enable true endoscopic coronary artery bypass grafting with a precision that has not been achieved with any other previously applied endoscopic technique.  1999 Elsevier Science B.V. All rights reserved.
Statistical Theory for Energy Distribution in Gyrokinetic Turbulence

Recent gyrokinetic simulations reveal that ITG turbulence excites a large number of damped modes in the wavenumber range of the instability. These dissipative struc-tures engage in an equipartition of dissipated power across the modes of a singular value decomposition (SVD). Energy injected by the instability is simultaneously distributed among all modes. Equipartition is enforced by the large multiplicity of couplings among damped modes, the uniformity of coupling strengths from mode to mode, the propensity for ergodization in individual triads, and the relatively large damping rates. Through the concept of turbulent dissipative contact among separate decompositions, we derive the probability distribution function of dissipated power in any mode and the entropy of the system. We study the eﬀect of diﬀerent basis decompositions on equipartition. Because the system is dissipative but turbulent, energy not lost to dissipation in a turbulent decorrelation time progresses to smaller scales via a wavenumber cascade. At high k the dissipation rate becomes smaller than the turbulent correlation rate, yielding a power law spectrum asymptotically.
Reduction) and its hypocholesterolemic effect in high fat diet-fed mice

Lisosan ® Reduction is a plant mixture produced from powdered Triticum aestivum (Lisosan ® G), Desmodium adscendens, Malus domestica, Picrorhiza kurroa and Hordeum vulgare. The aim of this study was to characterize the phenolic profile of Lisosan ® Reduction and to evaluate the effects of aqueous extract on mice fed a high fat diet (HFD). Syringic acid, trans sinapic acid and neochlorogenic acid were identified by HPLC-DAD to be the dominant polyphenols of Lisosan ® Reduction, followed by vitexin, trans p-coumeric acid and trans ferulic acid. Mice treated with aqueous extract of Lisosan ® Reduction (60 mg/kg b.w.) showed a significant decrease of serum cholesterol, glucose and triglycerides level and a significant increase of CYP7A1 gene expression, compared to HFD group.
Incorporating Virtuality in Ubiquitous Computing Services for Influencing Human Behavior

—The role of computing technologies has been expanding, and our lifestyles will be significantly influenced by these technologies. Refining the meaning of real space by incorporating virtuality through ubiquitous computing technologies is a very powerful concept because people’s senses are enhanced, making them potentially see something that may not exist in the real space. For example, human eyesight can be altered using head-mounted displays, which modify real-world views captured by video cameras with mixed reality technologies. These approaches are also useful in influencing human behaviors that make a variety of new types of digital services possible. The paper presents four case studies to enhance the meaning of the real space through incorporating virtuality and proposes a design guideline extracted from the experience with their development.
EVALUATION THE EFFECT OF CONTROLLED DIETS ON OBESITY TREATMENT

This study aimed to evaluate the effect of low caloric diet on weight loss and improved cardiovascular risk in obese women's. The research was done on 20 respondents of Egyptian women’s ranging between (30-50) years old and they have different obesity. They were divided into three groups A, B and C depended on the body mass index (BMI) and they were under experimental diets having low calories (1200-1500 kcal/day) for three months. Waist and hip circumference were measured before starting and after three months. Blood samples were also collected from the respondents and were analyzed for triglycerides, total cholesterol, low density lipoproteins (LDL) and high density lipoproteins (HDL). Results indicated that waist circumference, hip circumference, weight and BMI of all samples decreased significantly at the end of the experimental period in the different three groups as compared to beginning study. Moreover, this decrease was more pronounced for the group C which have the highest body measurements and body mass index at the starting of the experiment. Also, triglycerides, total cholesterol, HDL and LDL were decreased at the end of three months. The decrease was significantly in triglycerides and non-significant in HDL. So, it could be concluded that consuming controlled deities having low calories contents were effective for obesity treatment and decrease cardiovascular risks.
Measuring global water security towards sustainable development goals

Water plays an important role in underpinning equitable, stable and productive societies and ecosystems.Hence, UnitedNations recognized ensuringwater security as one (Goal 6) of the seventeen sustainable development goals (SDGs). Many international river basins are likely to experience ‘lowwater security’ over the coming decades.Water security is rooted not only in the physical availability of freshwater resources relative towater demand, but also on social and economic factors (e.g. soundwater planning andmanagement approaches, institutional capacity to provide water services, sustainable economic policies). Until recently, advanced tools andmethods are available for the assessment of water scarcity. However, quantitative and integrated—physical and socio-economic—approaches for spatial analysis of water security at global level are not available yet. In this study, we present a spatialmulti-criteria analysis framework to provide a global assessment of water security. The selected indicators are based onGoal 6 of SDGs. The term ‘security’ is conceptualized as a function of ‘availability’, ‘accessibility to services’, ‘safety and quality’, and ‘management’. The proposed global water security index (GWSI) is calculated by aggregating indicator values on a pixel-by-pixel basis, using the orderedweighted averagemethod, which allows for the exploration of the sensitivity offinalmaps to different attitudes of hypothetical policymakers. Our assessment suggests that countries of Africa, SouthAsia andMiddle East experience very low water security. Other areas of highwater scarcity, such as some parts ofUnited States, Australia and Southern Europe, showbetter GWSI values, due to good performance ofmanagement, safety and quality, and accessibility. TheGWSImaps show the areas of theworld inwhich integrated strategies are needed to achieve water related targets of the SDGs particularly in the African andAsian continents.
S0884291418001851 58..68

A supersaturated single-phase Cu–26 at. % Co alloy was produced by high-pressure torsion deformation, leading to a nanocrystalline microstructure with a grain size smaller than 100 nm. The nonequilibrium solid solution decomposed during subsequent isothermal annealing. In situ high-energy X-ray diffraction was used to map changes linked to the separating phases, and the development of a nanoscale Cu–Co composite structure was observed. To gain further information about the relationship of the microstructure and the mechanical properties after phase separation, uniaxial tensile tests were conducted on as-deformed and isothermally annealed samples. Based on the in situ diffraction data, different isothermal annealing temperatures were chosen. Miniaturized tensile specimens with a round cross section were tested, and an image-based data evaluation method enabled the evaluation of true stress–strain curves and strain hardening behavior. The main results are as follows: all microstructural states showed high strength and ductility, which was achieved by a combination of strain-hardening and strain-rate hardening.
Revisiting Roos Bias in RC4 Key Scheduling Algorithm

RC4 is one of the most popular stream cipher with wide industrial applications, it has received serious attention in cryptology literature in the last two decades. In 1995, Roos pointed out that the elements S N [ y ] of the permutation S N after the Key Scheduling Algorithm for the ﬁrst few values of y are biased to certain combinations of secret key bytes. These correlations were theoretically studied by Paul and Maitra (SAC 2007). The formula for the correlation probabilities provided by them gives a wrong impression that the probabilities decrease as the value of y becomes larger, which is not true. In this paper, we point out some gaps in their analysis and present a detailed analysis of Roos Bias. We provide a more accurate formula for the correlation probabilities.