Miracle-dz/UniFAR-FTUs huggingface dataset:
Mitigation of Iron Irradiation-Induced Genotoxicity and Genomic Instability by Postexposure Dietary Restriction in Mice

Background and Purpose. Postexposure onset of dietary restriction (DR) is expected to provide therapeutic nutritional approaches to reduce health risk from exposure to ionizing radiation (IR) due to such as manned space exploration, radiotherapy, or nuclear accidents as IR could alleviate radiocarcinogenesis in animal models. However, the underlying mechanisms remain largely unknown. This study is aimed at investigating the effect from postexposure onset of DR on genotoxicity and genomic instability (GI) induced by total body irradiation (TBI) in mice. Materials and Methods. Mice were exposed to 2.0 Gy of accelerated iron particles with an initial energy of 500 MeV/nucleon and a linear energy transfer (LET) value of about 200 keV/μm. After TBI, mice were either allowed to free access to a standard laboratory chow or treated under DR (25% cut in diet). Using micronucleus frequency (MNF) in bone marrow erythrocytes, induction of acute genotoxicity and GI in the hematopoietic system was, respectively, determined 1 and 2 months after TBI. Results and Conclusions. TBI alone caused a significant increase in MNF while DR alone did not markedly influence the MNF. DR induced a significant decrease in MNF compared to the treatment by TBI alone. Results demonstrated that postexposure onset of DR could relieve the elevated MNF induced by TBI with high-LET iron particles. These findings indicated that reduction in acute genotoxicity and late GI may be at least a part of the mechanisms underlying decreased radiocarcinogenesis by DR.
Complications of Tattoo Removal- are they Rare?

In our days we are facing a high demand of doing tattoo and at the same time an increasing worldwide demand for effective and safe ways of tattoo removal. Improving the technology of lasers has realize good results in tattoo removal but complications sometime are not rare as we think. Removing a tattoo is a delicate and prolonged process; therefore, it is important to raise awareness amongst the most predisposed groups.
Comparison between a prenatal sonographic scoring system and a clinical grading at delivery for Placenta Accreta Spectrum disorders

Abstract Objective Placenta Accreta Spectrum (PAS) disorders have become a major iatrogenic obstetric complication worldwide. Data on the accuracy of ultrasound examination diagnosis are limited by incomplete confirmation and variability in the description of the different grades of PAS at delivery. The aim of this study was to compare our prenatal routine sonographic screening and diagnostic scoring system with a standardized clinical grading system at birth in patient at risk of PAS Study design This is a retrospective cohort study of 607 pregnant patients with at least one prior cesarean delivery between December 2013 and December 2018. All patients were assessed for PAS using our institutional prenatal sonographic scoring system and the corresponding ultrasound findings were compared with those of a standardized clinical intra-operative macroscopic grading system of the degree of accreta placentation at vaginal birth or laparotomy. Results PAS was diagnosed clinically at birth in 50 (8.2%) cases, 17 of which were confirmed by histopathology. A low (score ≤ 5), medium (score 6-7), high (score ≥ 8) probability for PAS was reported in 502, 61 and 44 cases, respectively. The probability score increased significantly (p < .001) in women ≥2 prior cesarean deliveries, with an anterior low-lying/placenta previa, with absent clear space, increased in retroplacental vascularity and with the size and numbers of lacunae. The number of cases classified clinically as grade 1 (non-PAS) and 3 (adherent PAS) was significantly (p < .001) lower in women with a high probability score whereas the rates of the other grades was significantly (p < .001) higher. The widest discrepancy between ultrasound probability score and clinical grade was found for grade 2 which, describes a partial placental adherence and grades 4 and 5 which, refer to placental percreta which describes tissue having invade trough the uterine serosa and beyond. Conclusions Both ends of the spectrum of accreta placentation remain difficult to diagnose antenatal and clinically at birth, in particular when no histopathologic confirmation is available. There is a need to develop ultrasound accuracy score systems that can differentiate between the different grades of PAS and which are validated by standardized clinical and pathology protocols.
Seismic Design Spectra for Nuclear Power Plants

Statistical studies made recently, independently by the Blume and Newmark organizations for the AEC, of a number of earthquakes are reported with a view toward developing recommendations for design response spectra to be used for nuclear power plant facilities. Recommended criteria and design spectra are reported which differ somewhat from previous recommendations but which are generally in accord with current practice. The new recommendations are more rational than previous ones in the sense that they are consistent with the results of a larger number of observations, and will generally tend to agree better with response spectrum calculations made for the same earthquake history with different levels of damping. Recommendations are also included regarding other seismic design criteria for nuclear power plants, including damping values and combination of response components.
Influence of Gum Arabic from Acacia Senegal var. kerensis on the Modifications of Pasting and Textural Properties of Cassava and Corn Starches

The use of hydrocolloids to modify the properties of native starches has been on the rise in the recent times due to the market demand for natural, safe and economical food ingredients. The objective of this study was to investigate the effect of gum Arabic from Acacia senegal var. kerensis to modify pasting and textural properties of corn and cassava starches, as an alternative to chemical and enzymatic modification. Blends were prepared by substituting the starches with gum at different levels (0%, 0.5%, 2.0%, 4.0%, 6.0% and 8.0%), whereas native corn and cassava starches were used as control. The pasting properties of the starch-gum mixed systems were determined using the Brabender vis-cograph while the textural properties (firmness, consistency, cohesiveness and work of cohesion) were determined using Texture Analyzer. Results showed that the gum Arabic significantly decreased all the viscosity parameters (peak viscosity, final viscosity, break down and setback values) of both starches at all levels of substitution. However, there was no significant effect of gum Arabic on the pasting temperature (72.05˚C - 71.85˚C) for corn starch and (68.90˚C - 68.65˚C) for cassava starch. The degree of gel firmness and consistency was higher in corn starch than in cassava starch and the effect of gum addition differed with each starch. The findings from this study indicate that gum Arabic significantly modified the pasting and textural properties of corn and cassava starches due to strong interaction between the gum and the starches. Hence, this property of gum Arabic could be useful in controlling starch retrogradation and determining starch end use functionality.
An application of hydropneumatic propulsion to hydrofoil craft

power ratios at high incidence, it is recommended that precalculated or tested propeller data for the zero angle-ofincidence values be used. If calculated or test thrust and power data is unavailable, use can be made of the zero incidence thrust and power equations presented. Comparison with experiment shows an engineering accuracy sufficient for establishing design criteria, trending studies, and preliminary configuration development, and performance estimates. All these results are applicable for propellers operating at high incidence or in large upflow and are thus applicable to VTOL-type operation as well as for conventional propeller operation.
Ulam-Hyers-Rassias stability for a class of nonlinear implicit Hadamard fractional integral boundary value problem with impulses

This paper considers a class of nonlinear implicit Hadamard fractional differential equations with impulses. By using Banach's contraction mapping principle, we establish some sufficient criteria to ensure the existence and uniqueness of solution. Furthermore, the Ulam-Hyers stability and Ulam-Hyers-Rassias stability of this system are obtained by applying nonlinear functional analysis technique. As applications, an interesting example is provided to illustrate the effectiveness of main results.
HYDROPHOBIC MATERIALS, SUPERPLASTICIZER AND MICROSILICA EFFECTS ON SETTING OF CEMENT PASTES AT VARIOUS TEMPERATURES

The use of hydrophobic materials, superplasticizers and microsilica by the concrete industry in hot weather regions is increasing substantially. This paper investigates the influence of these materials on the setting times of cement pastes. Seven mixes with different component proportions were made to demonstrate the uncombined as well as the combined effects of these materials on both the initial and final setting times at 20, 35 and 50°C. The test results indicated that the hydrophobic material had a retardation effect. The efficiency of either the hydrophobic material or the superplasticizer in retarding setting is lower at high temperatures. Most interesting is that when combining the hydrophobic material with the superplasticizer, the resulting product gave an acceleration effect. The inclusion of microsilica in the mixture as a cement replacement material retarded both the initial and final settings.
Prevalence of Multimorbidity of Chronic Noncommunicable Diseases in Brazil: Population-Based Study

Background Multimorbidity is the co-occurrence of two or more chronic diseases. Objective This study, based on self-reported medical diagnosis, aims to investigate the dynamic distribution of multimorbidity across sociodemographic levels and its impacts on health-related issues over 15 years in Brazil using national data. Methods Data were analyzed using descriptive statistics, hypothesis tests, and logistic regression. The study sample comprised 679,572 adults (18-59 years of age) and 115,699 elderly people (≥60 years of age) from the two latest cross-sectional, multiple-cohort, national-based studies: the National Sample Household Survey (PNAD) of 1998, 2003, and 2008, and the Brazilian National Health Survey (PNS) of 2013. Results Overall, the risk of multimorbidity in adults was 1.7 times higher in women (odds ratio [OR] 1.73, 95% CI 1.67-1.79) and 1.3 times higher among people without education (OR 1.34, 95% CI 1.28-1.41). Multiple chronic diseases considerably increased with age in Brazil, and people between 50 and 59 years old were about 12 times more likely to have multimorbidity than adults between 18 and 29 years of age (OR 11.89, 95% CI 11.27-12.55). Seniors with multimorbidity had more than twice the likelihood of receiving health assistance in community services or clinics (OR 2.16, 95% CI 2.02-2.31) and of being hospitalized (OR 2.37, 95% CI 2.21-2.56). The subjective well-being of adults with multimorbidity was often worse than people without multiple chronic diseases (OR=12.85, 95% CI: 12.07-13.68). These patterns were similar across all 4 cohorts analyzed and were relatively stable over 15 years. Conclusions Our study shows little variation in the prevalence of the multimorbidity of chronic diseases in Brazil over time, but there are differences in the prevalence of multimorbidity across different social groups. It is hoped that the analysis of multimorbidity from the two latest Brazil national surveys will support policy making on epidemic prevention and management.
Characteristics of a two-layer electromagnetically coupled rectangular patch antenna

Experimental results on the characteristics of a two-layer electromagnetically coupled rectangular patch antenna are presented. The variations of pattern shape, 3 dB beamwidth and impedance bandwidth with spacing s between the two layers are studied for s between 0 and 0. 37λ0. A relatively high-gain region is found for s between 0. 31λ0 and 0. 37λ0.
What’s Not to Like? Facebook Page Likes Reveal Limited Polarization in Lifestyle Preferences

ABSTRACT Increasing levels of political animosity in the United States invite speculation about whether polarization extends to aspects of daily life. However, empirical study about the relationship between political ideologies and lifestyle choices is limited by a lack of comprehensive data. In this research, we combine survey and Facebook Page “likes” data from more than 1,200 respondents to investigate the extent of polarization in lifestyle domains. Our results indicate that polarization is present in page categories that are somewhat related to politics – such as opinion leaders, partisan news sources, and topics related to identity and religion – but, perhaps surprisingly, it is mostly not evident in other domains, including sports, food, and music. On the individual level, we find that people who are higher in political news interest and have stronger ideological predispositions have a greater tendency to “like” ideologically homogeneous pages across categories. Our evidence, drawn from rare digital trace data covering more than 5,000 pages, adds nuance to the narrative of widespread polarization across lifestyle sectors and it suggests domains in which cross-cutting preferences are still observed in American life.
Anti-PD1 Therapy Plus Whole-Brain Radiation Therapy May Prolong PFS in Selected Non–Small Cell Lung Cancer Patients with Brain Metastases: A Retrospective Study

Background Whole-brain radiotherapy (WBRT) remains an essential modality of treatment for brain metastases (BMs) derived from non-small cell lung cancer (NSCLC) patients and anti-PD-1 therapy has demonstrated intracranial responses in these patients. We aimed to evaluate if the combination of the two treatments could yield additive efficacy. Methods A retrospective review of our institution’s database was carried out to identify NSCLC patients with BMs who had been treated with anti-PD1 therapy and/or WBRT between 2015 and 2020. Patient characteristics, main outcomes, including progression-free survival (PFS) and overall survival (OS), and factors affecting these outcomes were analyzed. SPSS 24 was used for statistical analysis. Appropriate statistical tests were employed according to the type of data. Results Overall, 21 NSCLC BM patients were identified that had received WBRT. Of these, ten had been additionally treated with anti-PD1 therapy within 30 days of WBRT initiation. Median PFS was 3 (95% CI 0.8–5.1) months with WBRT alone versus 11 (95% CI 6.3–15.6) months with combined treatment. Risk of disease progression was 71% lower with the combined approach (HR 0.29, 95% CI 0.11–0.80; p=0.016). A trend toward improved OS was also observed with the combined approach (HR 0.33, 95% CI 0.08–1.12; p=0.107). Concurrent treatment (p=0.028) and male sex (p=0.052) were associated with improved PFS, while OS was associated only with age (p=0.02). Conclusion Concurrent WBRT and anti-PD1 therapy may delay progression and improve survival in BM patients with confirmed EGFR- and ALK-negative NSCLC histology. Prospective studies are warranted to validate and elucidate on the additive effect of the two modalities.
SC-EADNet: A Self-Supervised Contrastive Efficient Asymmetric Dilated Network for Hyperspectral Image Classification

Unsupervised and semisupervised feature learning has recently emerged as an effective way to reduce the reliance on expensive data collection and annotation for hyperspectral image (HSI) analysis. Existing unsupervised and semisupervised convolutional neural network (CNN)-based HSI classification works still face two challenges: underutilization of pixel-wise multiscale contextual information for feature learning and expensive computational cost, for example, large floating-point operations per seconds (FLOPs), due to the lack of lightweight design. To utilize the unlabeled pixels in the HSIs more efficiently, we propose a self-supervised contrastive efficient asymmetric dilated network (SC-EADNet) for HSI classification. There are two novelties in the SC-EADNet. First, a self-supervised multiscale pixel-wise contextual feature learning model is proposed, which generates multiple patches around each hyperspectral pixel and develops a contrastive learning framework to learn from these patches for HSI classification. Second, a lightweight feature extraction network EADNet, composed of multiple plug-and-play efficient asymmetric dilated convolution (EADC) blocks, is designed and inserted into the contrastive learning framework. The EADC block adopts different dilation rates to capture the spatial information of objects with varying shapes and sizes. Compared with other unsupervised, semisupervised, and supervised learning methods, our SC-EADNet provides competitive classification performance on four hyperspectral datasets, including Indian Pines, Pavia University, Salinas, and Houston 2013, but few FLOPs and fast computational speed.
A SIMPLE METHOD OF IDENTIFYING AN EXPANSIVE SOIL

ABSTRACT Expansive soils pose a problem to the construction engineers. At present there is no universally accepted simple procedure for identifying these soils. The authors present in this paper a method for identifying expansive soils from its liquid limit, plasticity index and shrinkage index values. Test results on fifty soils from Tamil Nadu and the Deccan Trap regions and the data taken from other research publications are analysed and a comparison is made between the different methods to demonstrate the reliability and simplicity of the proposed method over the other methods available to the practising engineers.
JOURNAL OF LANGUAGE AND LINGUISTIC STUDIES

The current study aimed to explore EFL instructors’ perceptions toward online teaching during the COVID-19 pandemic, with special emphasis on the challenges they faced, and the advantages and disadvantages of this mode of education. The participants in this study were 43 EFL faculty members from the Departments of English at Qassim University in Saudi Arabia. Data for this research were collected by distributing a semi-structured survey designed by the researcher. The results showed that the top advantage of distance teaching was normally protection from the illness. Distance teaching also provided the opportunity to experiment with alternative teaching methods, tools, and assessments. Further, teachers felt exempted from some of the burdens associated with in-person teaching and were allowed to focus on the core role of their profession. Despite these benefits, the participants revealed that e-teaching cannot easily replace traditional education. All in all, the participants reported that e-teaching has advantages for professors, but this is not necessarily the case for students. Implications of these findings are provided, such as training teachers to deal with e-teaching mediums efficiently, keep pace with sudden adjustments, and create monitoring measures to ensure that instructors do not become complacent.
Analisis Prakondisi Implementasi Kebijakan Peningkatan Kompetensi Guru

The preconditioned implementation of the teacher’s competency improvement policy at schools is very essential as the teachers are the spearhead in carrying out education at schools. This precondition includes communication, resources, attitude disposition of the executives, and bureaucratic structure. This research used qualitative approach and multi-case study design. The results of the research showed the following points: First, the quality of the communication gave sufficient support in implementing the school’s policy. The extended communication seemed to be prudent, attractive, accurate, right to the target, open and religious but arrogant. Second, the quality of the available resources was sufficient in supporting the school’s policy implementation. Third, the quality of the executive’s attitude disposition gives sufficient support. Fourth, the quality of the bureaucratic structure, the use of reference/SOP, and resource gave sufficient support.
Cost and Risk Evaluation for Horizontal Directional Drilling versus Open Cut in an Urban Environment

Municipal infrastructure such as transportation, waste disposal, and utilities are rapidly expanding due to an increase in urbanization. Subsequently, municipalities are faced with having to designate the most effective method of installing new buried infrastructure while being mindful of cost considerations. In order to determine the most feasible underground construction method, various risks and cost factors must be assessed and analyzed. The intent of the study was to compare horizontal directional drilling (HDD) applications with traditional open cut applications. This study is relevant to practitioners and researchers because it identifies and describes risks and factors used in creating a planning tool for small diameter pipelines in an urban environment. The data indicate that utilizing HDD can minimize risks and reduce the overall costs of construction in an urban environment.
Dynamic transitions for the S-K-T competition system

This paper is concerned with dynamical transition for biological competition system modeled by the S-K-T equations. We study the dynamical behaviour of the S-K-T equations with two different boundary conditions. For the system under non-homogeneous Dirichlet boundary condition, we show that the system undergoes a mixed dynamic transition from the homogeneous state to steady state solutions when the bifurcation parameter cross the critical surface. For the system with Neumann boundary condition, we prove that the system undergoes a mixed dynamic transition, a jump transition and a continuous transition when the bifurcation parameter cross the critical number. Finally, two examples are provided to validate the effectiveness of the theoretical results.
A heuristic search approach to feeder switching operations for overload, faults, unbalanced flow and maintenance

The general feeder switching problem is essentially combinatorial, i.e. suitable for analysis by heuristic search methods. An explicit search method is developed to identify feasible switching options under the constraint of a radial structure. Feeder overload, transformer overload, phase current over-unbalance, service restoration after faults, and maintenance are considered. The number of switching operations for resolution of these problems is an important factor for practical use. An explicit search structure is proposed. Based on this search structure heuristic rules and evaluation functions are exploited to quickly find a solution with relatively few switching operations and even balancing of system load. The method is efficient and reliable. A distribution system of the Taiwan Power Company is used to test the results. >
Combined Model for Signal Control and Route Choice in Urban Traffic Networks

Traffic signals have a significant effect on the choice of routes by motorists in urban areas. They are of primary importance in the development of advanced traffic management strategies that involve dynamic rerouting of traffic flows through signal-controlled street networks. A combined network model that simultaneously accounts for both the route choices made by motorists and the desired signal controls to match these choices is presented. Given origin-destination travel demand information, the model generates signal controls to optimize network performance and calculates the resulting traffic volumes in the network. This optimization model inherently reflects the mutual consistency between traffic flows and signal controls. The model is applicable to both fixed-time and demand-responsive signals. Computational procedures and sample network solutions are presented.