Miracle-dz/UniFAR-FTUs huggingface dataset:
Variational and numerical analysis of a Q-tensor model for smectic-A liquid crystals

We analyse an energy minimisation problem recently proposed for modelling smectic-A liquid crystals. The optimality conditions give a coupled nonlinear system of partial differential equations, with a second-order equation for the tensor-valued nematic order parameter $Q$ and a fourth-order equation for the scalar-valued smectic density variation $u$. Our two main results are a proof of the existence of solutions to the minimisation problem, and the derivation of {a priori} error estimates for its discretisation of the decoupled case (i.e., $q=0$) using the $\mathcal{C}^0$ interior penalty method. More specifically, optimal rates in the $H^1$ and $L^2$ norms are obtained for $Q$, while optimal rates in a mesh-dependent norm and $L^2$ norm are obtained for $u$. Numerical experiments confirm the rates of convergence.
A collaborative target tracking algorithm for multiple UAVs with inferior tracking capabilities

Target tracking is one of the hottest topics in the field of drone research. In this paper, we study the multiple unmanned aerial vehicles (multi-UAV) collaborative target tracking problem. We propose a novel tracking method based on intention estimation and effective cooperation for UAVs with inferior tracking capabilities to track the targets that may have agile, uncertain, and intelligent motion. For three classic target motion modes, we first design a novel trajectory feature extraction method with the least dimension and maximum coverage constraints, and propose an intention estimation mechanism based on the environment and target trajectory features. We propose a novel Voronoi diagram, called MDA-Voronoi, which divides the area with obstacles according to the minimum reachable distance and the minimum steering angle of each UAV. In each MDA-Voronoi region, the maximum reachable region of each UAV is defined, the upper and lower bounds of the trajectory coverage probability are analyzed, and the tracking strategies of the UAVs are designed to effectively reduce the tracking gaps to improve the target sensing time. Then, we use the Nash Q-learning method to design the UAVs’ collaborative tracking strategy, considering factors such as collision avoidance, maneuvering constraints, tracking cost, sensing performance, and path overlap. By designing the reward mechanism, the optimal action strategies are obtained as the control input of the UAVs. Finally, simulation analyses are provided to validate our method, and the results demonstrate that the algorithm can improve the collaborative target tracking performance for multiple UAVs with inferior tracking capabilities.
Women in Nigeria face high risks of illness and death related to childbearing, and young children in the country have high rates of morbidity and mortality

Background: Maternal and newborn child health are priority concerns in Bauchi State, northern Nigeria. Increased male involvement in reproductive health is recommended by the World Health Organization. A trial of a program of universal home visits to pregnant women and their spouses, with an intention to increase male involvement in pregnancy and childbirth, showed improvements in actionable risk factors and in maternal morbidity. We used a narrative technique to explore experiences of the visits and their effect on gender roles and dynamics within the households. Methods: Trained fieldworkers collected narratives of change from 23 visited women and 21 visited men. After translation of the stories into English, we conducted an inductive thematic analysis to examine the impact of the visits on gender norms and dynamics. Results: The analysis indicated that the visits improved men’s support for antenatal care, immunization, and seeking help for danger signs, increased spousal communication, and led to changes in perceptions about gender violence and promoted non-violent gender relationships. However, although some stories described increased spousal communication, they did not mention that this translated into shared decision-making or increased autonomy for women. Many of the men’s stories described a continuing paternalistic, male-dominant position in decision-making. Conclusions: Few studies have examined the gender-transformative potential of interventions to promote male involvement in reproductive health; our analysis provides some initial insights into this.
VOTES AND SEATS: INDEXES, MEASURES AND THEIR APPLICATION

The paper presents the most known indexes used to describe and analyze electoral and legislative fragmentation/concentration. Based on literature review, the research examines the concepts and formulas of the indexes and presents examples of application. Besides, it discusses peculiarities of the Brazilian case, like mallaportionment and electoral coalitions in proportional systems. To know the indexes and their correct use are important to knowledge accumulation and generation of standard basis to promote comparative analysis. The main finding of the paper is that each index has a specific purpose, they can supply just partial information to create a broad picture of the analyzed system.
Fungal contamination of dried vine fruits and ochratoxin a detection in grape juice from Duhok, Iraq

Introduction: Dried vine fruits (raisins) and their juice are widely consumed by human as a diet. Raisins have been shown highly contaminated with ochratoxin A (OTA) and OTA-producing fungi. Ochratoxin A is a potent nephrotoxic and carcinogen to human and animals. Materials and Methods: Dried vine fruit samples was obtained from local shops for fruit juice and soft drinks in Duhok province. Two different media, Dichloran R ose Ben gal Chloromphenicol Agar (DRBC) and Dichloran 18 % Glycerol Agar (DG-18) was used for the counting and isolation of fungi from dried vine fruits. Grape juice were prepared from dried vine fruit after blending with water in a commercial blender. Natural contamination with ochratoxin A was detected by LC-MS/MS technique. Results and Discussion: All samples confirmed to be contaminated with fungi with various degrees. A total of 19 filamentous genera of fungi as well to Yeasts and non sporulation mycelium was detected. Predominant genera detected on both media were Aspergillus and Penicillium. Detected value of ochratoxn A in juices obtained from dried vine fruits was between 0.37 ng/ml to 1.85 ng/ml. Samples contaminated with ochratoxin A were associated withAspergillus carbonarius, A. niger aggregate, A. sclerotium, A. ochraceus, and Penicillum verrucosum. Conclusion: Dried vines fruit were highly contaminated with a broad spectrum of filamentous fungi. Black aspergilli were the most detected species from samples naturally contaminated with ochratoxin A
IMPACT OF SOME ANTIOXIDANTS ON GROWTH AND PRODUCTIVITY OF TWO SNAP BEAN CULTIVARS UNDER FAYOUM CONDITIONS

Poulista and Xera are the most important snap bean cultivars growing under ElFayoum conditions, for both local market and export. Antioxidant substances are organic compounds, i.e., organic acid or hormones. Recent studies concentrated on the beneficial effects of these antioxidant substances to improve plants performance. Therefore, an experiment was carried out during the fall seasons of 2016 and 2017 in a private farm at El-Fayoum Governorate, Egypt to study the effect of 7 antioxidant substances, i.e., indole -3acetic acid, indole -3butyric acid, ascorbic acid, citric acid, salicylic acid, tartaric acid and oxalic acid as a foliar application, each at the rate of 500 ppm, on growth characters, green pods yield and pod qualities of Poulista and Xera plants. Seeds of both cultivars were sown in September; experimental design was spilt plot. Antioxidant applications were done after 20, 30 and 40 days from planting and plant samples were taken after 50 and 70 days for growth characters and for green pods yield and quality parameters, respectively. Results showed that Xera variety was the higher in pod length, pods weight/ plant -1 , chlorophyll a, b and total chlorophyll content in leaves and amino acid content in pods compared with Poulista variety. Moreover, Poulista variety was higher in plant height, carbohydrates content in stem and pods and amino acid content in stem compared with Xera cultivar. All foliar antioxidant applications significantly increased all growth characters, pods yield and pod quality and chemical composition of carotenoids, chlorophyll a, b and total chlorophyll, as well as, carbohydrates and amino acid contents in leaves, stem and pods of snap bean plants compared with the control treatment. The superior application was oxalic acid followed by ascorbic acid, respectively, while citric acid gave the highest content of amino acid in stem. The remarkable growth and production improvement in Xera or Poulista cultivar obtained when plants treated with oxalic or ascorbic acid 3 times (20, 30, 40 days) from planting at the concentration of 500 ppm.
RMHP_A_319858 3653..3658

1Department of Occupational Safety and Health, Kota Kinabalu, Sabah, Malaysia; 2Occupational and Environmental Health Unit, Community and Family Medicine Department, Faculty of Medicine and Health Sciences, Universiti Malaysia Sabah, Kota Kinabalu, Malaysia; 3Centre for Occupational Safety and Health, Universiti Malaysia Sabah, Kota Kinabalu, Malaysia Introduction: Almost 90% of the reported occupational diseases in Sabah, Malaysian Borneo were due to hearing loss. The manufacturing industry was the main contributor to this problem. This study aims to identify the prevalence and associated factors for hearing loss among workers in the palm oil manufacturing industry in Sabah. Material and Methods: A cross-sectional study was done among 312 respondents from five palm oil mills in Sabah from January to April 2019. Audiometric tests, validated questionnaires and sound level meters were used. Chi-square test and independent t-test were conducted to determine the associated factors for hearing loss. Results: 75% (n = 234) of the respondents were diagnosed with hearing loss. Most of them were male (96.2%) with a mean age of 44.4 (SD 9.8) years, mean duration of employment of 16.2 (SD 9.7) years and mean noise exposure of 96.1 (SD 4.8) dB(A). The significant factors associated with hearing loss were older age (p = 0.001), married (p = 0.001), blue-collar jobs (p = 0.003), smoking (p = 0.001), works with noisy machinery (p = 0.005), lower level of noise exposed (p = 0.015), longer duration of employment (p = 0.001), and longer overtime hours per week (p = 0.001). Conclusion: The prevalence of hearing loss among workers in the noise-exposed palm oil industries was high. Annual audiometry testing and job rotation from noise-exposed workstations were recommended. A smoking cessation program may help but reduction of noise from the source by engineering control is still the best method.
Title: Electric power management in a microgrid analyzing photovoltaic arrays and a turbine- generator system

One of the priority objectives of microgrids is to achieve energy self-sufficiency, generally resorting to distributed generation sources and backup systems; however, they are usually connected to conventional electrical networks that ensure supply to the loads. Addressing this problem, this work presents a proposal (managing elements) to minimize the dependence of power from the external electrical system in the months of greatest demand and thus guarantee the supply of the other months. The proposed methodology compares two statistical techniques: central composition design with 20 simulated experimental replicas and regression with 28. In both cases, the monthly average purchased power is analyzed as a primary response and its standard deviation as a secondary. The study variables are seven photovoltaic arrays and the feed characteristics of the turbine-generator storage of the microgrid of the Center for Development of Renewable Energies (CEDER), belonging to the Center for Energy Research, Environmental and Technological (CIEMAT). The results, with high predictive quality supported by indexes of approach to the real values of solar radiation and the operation of the turbine-generator binomial, provide regions where CEDER has the possibility of increasing the capacities of solar systems and/or modifying the geometry of the mini-hydraulics supply according to your specific conditions.
Impact of Verbal and Visual Rhetoric in Advertising on Consumers’ Response

Rhetorical figures are linguistic tools that tend to have a great influence on consumers‟ response and help in the persuasion process. The deviation caused by rhetorical figures evokes the audiences‟ feelings and increases their elaboration and attitude towards the advertisement. Advertisers use verbal and visual rhetorical figures to communicate their messages. The present study analyzes a corpus of 10 advertisements to find out the rhetorical devices used in them. In addition, it tests the impact of verbal versus visual structures to find out which of them is more persuasive and more favorable for consumers. The study conducts a questionnaire to test the impact of using verbal and visual components in the advertisements and to find out which of them is more persuasive and more favorable for the consumers. Results have shown that processing verbal-visual advertisements showed more pleasure and favorable attitude toward the advertisements.
The Nature, Prospect and Challenges of e-commerce:

Recent studies have suggested that e-commerce has opened up a window of opportunities for the national economy of Bangladesh with minimum capital investment by digitalizing the information. Thereby, it is important to unravel the ontology of e-commerce for deepening the understanding of this digital revolution. To serve this purpose the study has conducted a small-scale survey on 29 females and 21 males, ranging in age from 16 to more than 55, who are all online shoppers both in the form of buyers and sellers. To supplement data to the survey, 10 in-depth interviews, five sellers and five buyers, are also taken. The study finds that e-commerce is gradually getting popular among the growing young generation of 24-34 age groups. Almost 100% of female shoppers prefer clothing, personal products to buy while male shoppers prefer electronic goods more. E-commerce creates a substitute marketing channel by terminating the manipulative role of middleman. Moreover, it serves as an empowering tool for women entrepreneurs. On the contrary, a few shoppers perceive e-commerce negatively for de-socializing people and creating false needs among young generation. In addition, a lot of virtual risks are explored associated with online business. Despite having these risks, e-commerce has made people’s life easier and thereby people should welcome the positive sides to underwrite the gradual development of e-commerce for keeping pace with this fast-moving world.
Prognostic significance of CT-determined sarcopenia in patients with metastatic pulmonary adenocarcinoma

Результаты. Среди 30 больных с IV cтадией неплоскоклеточного рака легких саркопения диагностирована в 17 (56,6 %) случаях. Средний возраст пациентов – 62 года. Однолетняя общая выживаемость у пациентов с саркопенией хуже по сравнению с больными без саркопении (23,5 % против 65,9 % соответственно, р = 0,024 по логранговому критерию). Статистически значимой разницы выживаемости между группами по полу пациентов не было.
Prognostic Significance of Immunohistochemical Expression of Chemokine Receptor (CXCR4) and RKIP in Gastric Carcinoma and Premalignant Lesions of the Stomach

Background: CXCR4 and RKIP have been implicated in initiation and progression in many cancers, but their role in gastric adenocarcinoma remains vague. Aim: The aim of this work is to assess the possible significance of both markers in gastric adenocarcinoma and premalignant lesions of the stomach. Methods: This retrospective study was carried upon 50 cases of gastric adenocarcinoma and 20 of premalignant lesions. Immunohistochemistry was performed to examine the expression of CXCR4 and RKIP in both gastric adenocarcinoma and premalignant lesions of the stomach. Results: CXCR4 was found to be highly expressed in gastric adenocarcinoma compared to premalignant lesions (P value=0.027). It was significantly correlated with tumor grade (P value=0.027), depth of tumor invasion (P value=0.019), lymph node metastasis (P value=0.025), distant metastasis (P value=0.044) and TNM stage (P value=0.002). No statistically significant correlation between CXCR4 expression and histopathological types (P value=0.8). RKIP expression has no significant correlation with progression from premalignant gastric lesions to adenocarcinoma (P value=0.078). RKIP was negatively associated with advanced tumor grade (P value=0.001), depth of invasion (P value=0.018), distant metastasis (P value=0.029) and TNM stage (P value=0.007). No statistically significant correlation between RKIP expression and histopathological types (P value=0.17) and lymph node status (P value=0.053). No significant correlation between CXCR4 and RKIP expression in studied cases was detected (P value=0.178). Conclusions: These results suggested that CXCR4 might be involved in gastric carcinogenesis. Keyword: Gastric adenocarcinoma, premalignant, CXCR4, RKIP. Department of pathology, Faculty of Medicine Benha University, Egypt. Correspondence to: Mona A. Abo El-Khair, Department of pathology, Faculty of Medicine Benha University, Egypt.
FREQUENCY AND TIME DOMAIN ANALYSIS OF TRIPLE BAND NOTCHED UWB ANTENNA WITH INTEGRATED BLUETOOTH BAND

|This paper presents the time and frequency domain analysis of a compact tri-band notched UWB (ultra-wideband) antenna with integrated Bluetooth frequency for wireless applications. Modi(cid:12)cations in radiating element and DGS techniques are used to achieve high impedance bandwidth. The antenna operates at UWB frequency band 3.1{10.6 GHz as well as Bluetooth frequency 2.4 GHz. The band notch characteristics are at Wi-MAX (3.3{3.7 GHz), WLAN (5{6 GHz), and X-Band Satellite communication (7.1{7.76 GHz). These notches are obtained by etching diﬀerent slots in the ground plane and radiating elements. Gain, group delay, pulse transmission, and radiation patterns of the proposed antenna are also investigated. A prototype of the antenna is fabricated, and the re(cid:13)ection coeﬃcient is measured. A comparison has been made between the proposed antenna and previously published UWB antennas.
Study of Absolute Neutrophil Absolute Lymphocyte count ratio in Community Acquired Pneumonia patients as a prognostic indicator at a tertiary care centre

Background: Community acquired pneumonia refers to pneumonia contracted by a person with little or no contact with health care system. Following endotoxemia the number of circulating neutrophils increases while lymphocyte counts decrease. Combining both parameters seems a logical step and the ratio of neutrophil and lymphocyte counts is increasingly used in several clinical circumstances. Initially, this so-called neutrophil-lymphocyte count ratio (NLCR) was studied as an infection marker in ICU patients and found to correlate well with disease severity and outcome, according to APACHE-II and SOFA scores. In the current study, we explored the value of the NLCR in patients admitted with Community acquired pneumonia. Aims and Objectives: 1) To find out the value of Neutrophil-Lymphocyte Count Ratio (NLCR)in Community Acquired Pneumonia (CAP). 2) To study Neutrophil-Lymphocyte Count Ratio (NLCR) as prognostic indicator in Community Acquired Pneumonia (CAP). Materials and Methods: This prospective study was conducted on minimum of 100 patients admitted to hospitals from November 2015 to September 2017 from Bangalore. After admission of cases based on CURB-65 scores, a detailed history and clinical examination was done along with chest x-ray to establish the diagnosis. Before taking into the study all patients had signed the informed consent. Routine haematological investigations done on day 1,3 & 7 were carried out. Serum c-reactive protein levels, Urea nitrogen levels, Sputum for culture and sensitivity and Acid-fast bacilli (AFB) was done on the same day of admission. ANC (Absolute neutrophil count), ALC (Absolute lymphocyte count) and NLCR were calculated. Results: Our study included age groups above 18yrs. Majority of the patients in the study were between 58-67 years (30%) followed by 48-57 years (27%). As the CURB-65 score increased from score 0 to score 4–5, the NLCR consistently increased, while the lymphocyte counts consistently decreased. In patients who died there was a significantly higher NLCR at presentation compared to patients that survived (15.18±3.55 versus 11.73±3.01, p-value,0.003). Conclusion: In our study increased NLCR carried poor prognosis which correlated with high CURB65 score and ICU admission. In patients who died there was a significantly higher NLCR at presentation compared to patients those survived.
Mobile Technology in the Management of Tourist Activities in Aracaju, SE, Brazil

This study discusses the increasing influence of mobile technologies in the management of tourism companies by public managers and tourism suppliers’ perspectives in Aracaju, capital of the state of Sergipe. Technology has modified society and, consequently, its economy. In the tourist field, it has improved the potential of destinations through promotion and marketing, shortened distances, and catalyzed knowledge in a fast and competitive way. The literature review is constituted of subjects such as tourism management, governance, and mobile technology. In this context, the data collection process was conducted by means of a specific form with five objective questions applied to public managers and tourist service providers in order to evaluate the intervention of mobile technologies in the company’s governance and management. Five tourism provider groups from Aracaju constitute the field research: lodging facilities, travel agencies, car rental companies, and state and municipal management. Statistical analysis showed that the use of mobile technology leads to transformations in tourism governance and management, thus being a relevant tool that facilitates, intermediates and accelerates decision-making and the strategy process, hence bringing tourists closer to the tourist offer, as well as solving everyday business needs.
Protective Effect of Nettle and Olive Leaves on Hyperlipidemia in Experimental Rats

yslipidemia is a major contributor to atherosclerotic cardiovascular disease. Recently, World Health Organization (WHO) reported that cardiovascular diseases (CVD) account for 46% of ever all mortality in Egypt. So that; the present study investigated, the protective effect of nettle and olive leaves on hyperlipidemia in experimental rats. Thirty six male albino rats weighing 130 ± 20 g used in this study and divided into equal six groups ( 6 rats each),the first kept as anegative control group (-ve) received basal diet throughout the experiment period, while the second was the (+ve) control group which fed on hyperlipidemic diet for four weeks, while the four others groups given hyperlipidemic diet supplemented with nettle leaves (5%) ,( 10 %) and olive leaves(5 %), (10%) respectively for four weeks (astreatment groups ) . The chemical composition and phenolic compounds of both leaves were done . At the end of the experiment, biological data were calculated; blood samples were taken to biochemical analysis. In addition, histopathological examination was done. The results revealed that hyperlipidemic diet in the (+ve) control group increased body weight gain ,relative organ weight, serum lipid profile, Malondialdhyde (MDA), liver enzymes and serum glucose, decreased in serum HDL-C, serum Superoxide Dismutase (SOD), and Glutathione Peroxidase (GPx) . All treated groups with two leaves showed improvement previously parameters compared with positive control group. In conclusion, the consumption of nettle and olive leaves could be used for improving lipid profile, liver function and protect from hyperlipidemia in experimental rats.