Miracle-dz/UniFAR-FTUs huggingface dataset:
A Degraded Reconstruction Enhancement-based Method for Tiny Ship Detection in Remote Sensing Images with A New Large-scale Dataset

The rapid detection of ships within the wide sea area is essential for intelligence acquisition. Most modern deep learning-based ship detection methods focus on locating ships in high-resolution (HR) remote sensing (RS) images. Seldom efforts have been made on ship detection in medium-resolution (MR) RS images. An MR image covers a much wider area than an HR one of the same size, thus facilitating quick ship detection. To this end, we propose a tiny ship detection method namely, Degraded Reconstruction Enhancement Network (DRENet), for MR RS images. Different from previous methods that mainly focus on feature fusion strategies to improve the expression ability of the detector, we design an additional network branch, i.e., degraded reconstruction enhancer, to learn to regress an object-aware blurred version of the input image in the training phase. Our intuition is that the proposed reconstruction branch may guide the backbone to focus more on tiny ship targets instead of the vast background. Moreover, we incorporate a CRoss-stage Multi-head Attention module in the detector to further improve the feature discrimination by leveraging the self-attention mechanism. To fill the gap of lacking a large-scale MR ship detection dataset, we introduce Levir-Ship, which contains 3876 GF-1/GF-6 multi-spectral images and over 3K tiny ship instances. Experiments on Levir-Ship validate the effectiveness and efficiency of the proposed method. Our method achieves 82.4 AP with 85 FPS, which outperforms many state-of-the-art ship detection methods. Our code and dataset will be made public.
Language Learning Strategies Employed by Chinese Secondary School Students in Enhancing Reading Skills

English is one of the most used and learnt languages in the world. There are many strategies identified to predict and understand better English language learning among learners. In a multicultural country like Malaysia, reading comprehension among secondary school students is imperative so that reading itself is enjoyable, fun, and informative. However, considering that English is a second, third, or even a fourth language to these students, it is necessary to understand what language learning strategies they employ when they are reading English texts. This research aimed to identify (1) the dominant language learning strategies employed by Chinese secondary school students and (2) the significance between gender and language learning strategies. A total of forty-seven (N=47) Form 3 students from a private Chinese secondary school in Perak, Malaysia participated in this research. Data was collected quantitatively through the use of a survey questionnaire that was adopted based on Young Learners' Language Strategy Use (Cohen & Oxford, 2002) and Language Strategy Use Survey (Cohen, Oxford & Chi, 2002). Findings revealed that the cognitive strategy was the least dominant strategy employed by secondary school students during English reading comprehension activities. Besides that, there was no significant correlation between gender and language learning strategies among secondary school students. Nevertheless, this research presents a snippet of what teachers and learners could focus on when aiming for more fruitful reading comprehension outcomes in ESL classrooms.
The Involvement of Preservice Teachers in Delivering of Sport Education

Competence of a teacher should have been obtained when studying in college. However, college students or preservice teachers feel lack of competence during their study in college. It is important for colleges to provide a learning experience for students to have competence in teaching before they become a teacher. Sport Education (SE) has its own uniqueness because in its implementation, it can directly include several learning models as a provision to teach students when becoming a teacher. The purpose of this study was to determine the enjoyment of students using SE based on the characteristics of SE, increased skills and understanding of sports, and the pleasure of using SE. This research uses survey type of descriptive methods. Participants of this study are 35 college students who will finish their studies in the eastern part of West Java province. The instrument of this study used the Sport Education Season Survey. Data analyzing techniques employed in this study were descriptive statistics and paired samples t-test. The results of the study stated that college students enjoyed the use of SE based on the characteristics of SE, that college students have increased skills and understanding of sports, and that college students preferred SE compared to conventional learning. Further investigation related to college students teaching skills in the use of SE needs to be conducted.
Emotional Pasts in Swedish Rescue Services: Bringing Temporality to the Fore in the Field of Emotional Regimes

This article centres on emotions within the Swedish rescue services in terms of the concepts of emotional regime and emotional pasts, partly with a focus on the role of emotional pasts in emotional regimes, partly on how the (re)construction of emotional pasts relates to the organisation of the workplace. The empirical material consists of qualitative interviews with five female and 13 male firefighters in Sweden, aged 28–58. Results show that individual experiences are used as emotional pasts to define work situations in the present and that work teams, through informal conversations and formal debriefing, create stories out of central events, thus constructing shared emotional pasts. All in all, the analysis shows that temporalities and their narrative expressions are a vital part of how emotional regimes are sustained within the rescue services, which has implications for the understanding of the rescue services as an organisation.
Reconocimiento de trips ( Insecta: Thysanoptera) en floricultivos de tres corregimientos del municipio de Medellín, Antioquia (Colombia)

En la floricultura colombiana los trips constituyen uno de los problemas fitosanitarios de mayor importancia, no sólo por el daño directo que ocasionan, sino también por ser algunos de ellos vectores de enfermedades. Dada la impo_rtancia de estos insectos y el desconocimiento que se tiene de ellos por parte de los cultivadores de flores del municipio de Medellín, se planteó este proyecto para conocer las especies presentes, las plantas asociadas y su distribución. Se hizo un muestreo en 29 especies de plantas ornamentales, localizadas en 56 predios, en los cuales se coleccionaron los especímenes de trips directamente de la planta para su posterior identificación. El procesamiento de las muestras y su identificación se realizó en el laboratorio de diagnóstico del ! CA "Tulio Ospina" en Medellín. Se identificaron las especies: Anaphothrips obscurus Müller, Frankliniella insularis Franklin, Frankliniella nr. citripes, Frankliniella occidentalis Pergande, Frankliniella panamensis Hood, Neohydatothrips signifer Priesner, Psectothrips palmerae, Thrips australis Bagnall, Thrips palmi Karny, Thrips simplex Morison, Thrips tabaci Lindeman. Se colectaron además especímenes de cuatro especies las cuales han sido identificadas a nivel de género: Frankliniella sp. L Neohydatothrips sp. 1, Sertothrips sp. 1 y Thrips sp. 1. En relación con el órgano de la planta en el cual se hizo el muestreo, se observó que el 80% de los trips colectados, fueron recogidos de las flores. Los cultivos en los cuales se encontró una población mayor de trips fueron pompón (Chrysanthemum sp.) y aster (Aster sp.) y la especie de trips más frecuentemente encontrada y con una mayor distribución geográfica fue F. occidentalis, conocida como el "trips de las flores occidentales".
Complex roots of unity on the real plane

CR,roots = (C,+, ·, R, U) where R is a unary predicate for the real axis of the complex plane C and U the unary predicate for the complex roots of unity. A weaker structure (C,+, ·, U) is known to be ω-stable (see [Z]). Anand Pillay asked if CR,roots is well behaving in the context of real model theory, and this has been further discussed in [Mi]. We give here a complete axiomatisation of the theory of CR,roots and prove that the theory allows elimination of quantifiers in a reasonable language. The elimination of quantifiers in fact shows that definable sets in the standard model are finite boolean combinations of some countable unions of semi-algebraic cells.
Enhancement Effect of Spirulina platensis Extract on Broiler Chicks’ Growth Performance and Immunity

The current study was conducted to assess the consequences of Spirulina platensis extract based on growth performance and immunological response of broiler chicks. There was a total of a hundred and Eighty-one-day-old chicks were assigned at random into three dietary groups undergoing treatment with three replicates of 20 each bird. Control group was given ration without additives. The second and third groups were supplemented with Spirulina platensis extract at doses of 30 and 50 gm. /kg. of ration, respectively. Supplementation of broiler chicks with Spirulina platensis extract enhanced their growth performance represented by increasing final body weight, body weight gain, phagocytic activity, and phagocytic index while significantly decreased feed intake and food conversion ratio. Moreover, it increased serum levels of Ig-M, and Ig-G and obviously change in serum level of Insulin like growth factor-1 (IGF-1) but not lead to a significant change as compared to control. This study indicated that Spirulina platensis extract in ration enhanced the growth performance and immunological response of broiler chicks through increasing serum levels of immunoglobulins.
Working conditions of physical education teachers in European higher education institutions

Aim: One of the problems of modern higher education is the so-called "New core curricula", which oblige PE teachers to make many changes in the way they work. PE teachers face several restrictions to provide PE programs that improve students' physical fitness, cognitive development, and overall health. The research aimed to investigate the working conditions of university PE teachers in selected European tertiary institutions. Materials and Methods: The quantitative research employed purposive sampling. Five academics volunteered to collect information on 66 European tertiary institutions located in Poland, Slovakia, Serbia, Hungary, Czech Republic, Slovenia, Turkey, Spain, Montenegro, Croatia, Bosnia & Hercegovina, Finland and Kosovo. Quantitative data were collected using questionnaires with a set of questions concerning characteristics of tertiary institutions and various aspects of working conditions of university PE teachers. Results: Two thirds of the university PE teachers held master's degree in PE since in over 42% of surveyed institutions, a master's degree in physical education was required to conduct PE classes. The majority of PE teachers (84.4%) were employed full-time, and on average worked 38.6 days in an academic year. Significantly more PE teachers with masters and doctoral degrees (p = 0.012) were employed full-time, or fixed term in public, middle size HEIs (p <0.001). In HEIs in cities with less than 500,000 residents, PE teachers were more often encouraged for participation in CPD (p = 0.049). Significantly more public HEIs fully or partially covered the costs of CPD or conferences (p <0.001), whereas in non-public or small HEIs significantly more PE teachers had to finance the costs of CPD. Moreover, significantly more (p =0.037) universities implemented specific PE teachers’ evaluation criteria with a personal record of their achievements. Conclusion: There is a pressing need to improve qualifications of university PE teachers, as many European HEIs do not support PE teachers in CPD. Furthermore, lack of CPD opportunities, low salaries and lack of career promotion perspectives combined with lower psychological resilience, may result in professional burnout syndrome.
HAEMATOLOGICAL RESPONSES OF AFRICAN CATFISH (Clarias gariepinus, BURCHELL, 1822) JUVENILES EXPOSED TO ACUTE CONCENTRATIONS OF BUTACHLOR (HERBICIDE).

The possible changes in the haematological parameters of Clarias gariepinus juveniles exposed to acute concentrations of butachlor was examined in this study. One hundred and twenty juveniles of C. gariepinus were used for the study. The acute toxicity bioassay was a completely randomized design consisting of six treatments, with varying concentrations of butachlor (0.0, 0.6, 0.7, 0.8, 0.9, and 1.0 mg/l) all in duplicates. The post-exposure haematological parameters results revealed that the exposed fish showed significant (p < 0.05) progressive reduction in packed cell volume (PCV), haemoglobin (Hgb), total protein (TP) and total red blood cells count (TRBC) as the concentration of the toxicant increases. However, the values of total white blood cells count (TWBC), tends to increase with an increase in concentration of the toxicant. The absolute blood indices, mean corpuscular volume (MCV), mean corpuscular haemoglobin (MCH), mean corpuscular haemoglobin concentration (MCHC), showed fluctuating values though no significant differences (p>0.05) was observed among the treatments.
INEC-Sponsored Media Messages and Voters’ Turnout during the 2019 General Elections in Nigeria: A Study of Perception of Warri Voters

The media are partners in a democracy because they ensure political participation in the democratic process. Audience perception of the media is vital as it affects credibility and believability of the media and their messages. Credibility and believability of the media are predicated to an extent upon the source of media messages. These issues prompted this study which examined the INEC-Sponsored media messages during the 2019 general elections in Nigeria with specific reference to Warri voters. The study which adopted survey research methodology sampled 384 respondents and used questionnaire to collect data. Data collected were analysed by simple percentages and measures of central tendencies, while hypotheses were tested by Regression Analysis. The study found among others that voters in Warri metropolis perceived that the INEC-Sponsored media messages during the 2019 general elections were credible and thus created the expected level of awareness and sensitization about the general elections. This consequently and significantly influenced voters’ turnout in Warri metropolis during the 2019 general elections. The study thereafter recommended among others that INEC should continue to sponsor unbiased media messages to voters as this will strengthen elections and democracy in Nigeria.
Cobalt oxide nanoparticles based carbon electrode for the detection of residual nitrite in the soil of agricultural fields

ABSTRACT In the past few decades, accumulation of excess fertiliser in soil leads to deterioration of soil quality with carcinogenic effects on animals and humans. Hence, a quick, effective and reliable method of nitrite detection is necessary. In this regard, cobalt oxide nanoparticle-based carbon electrodes have excellent sensitivity towards electro-catalytic detection of nitrite ions. In this research, cobalt oxide nanoparticles were synthesised by precipitation reaction followed by calcination. Various spectroscopic methods have been used for the characterisation of nanomaterial, such as TEM, SEM-EDAX, FT-IR and XRD. A carbon-based electrode was developed using cobalt oxide, graphite and silicon oil. The electrode showed a good sensitivity towards detection of nitrite with limit of detection 0.3 µm and wider linear range. Due to low-cost preparation, sensitivity towards NO2 − ions and high conductivity, the sensor can be employed for the detection of nitrite in agricultural field soil samples. Graphical Abstract
Osteoporotic Fractures among Selective Estrogen Receptor Modulator Users in South Korea: Analysis Using National Claims Database

Background We evaluated (1) compliance with selective estrogen receptor modulator (SERM) use in postmenopausal women; and (2) the risk of osteoporotic fractures according to compliance and other patient characteristics. Methods National claims data of postmenopausal women from January 2013 to December 2014 were reviewed. Demographics, comorbidities, type of medical institution, and patient compliance were investigated. Compliance was measured according to medication possession ratio (MPR) and the patients were classified into compliant (MPR ≥80%) or non-compliant (MPR <80%) groups. Osteoporotic fractures were followed up for 2 years after prescription. Results Among 15,166 postmenopausal women, 4,130 were categorized as compliant. Osteoporotic fractures were confirmed in 669 patients. The hip fracture rate in the non-compliant group (0.39%) was marginally higher than that in the compliant group (0.36%; P=0.06). Compared to age 50 to 54 years, age 55 to 59 years showed protection against fractures (hazard ratio [HR], 0.57; 95% confidence interval [CI], 0.379–0.857; P=0.007), while those over 70 years showed a higher risk of fractures (HR, 2.035; 95% CI, 1.485–2.789; P<0.0001 for age 70–74 years; HR, 2.197; 94% CI, 1.588–3.041; P<0.0001 for age 75–79 years; and HR, 3.53; 95% CI, 2.493–4.999; P<0.0001 for age ≥80 years). Patients with mild (HR, 1.29; 95% CI, 1.088–1.530; P=0.0034) and moderate (HR, 1.286; 95% CI, 1.002–1.652; P=0.0486) comorbidities were associated with higher risks of fractures compared to those without comorbidities. Conclusions Among postmenopausal women with osteoporosis, only 27.2% complied with SERM therapy. A marginal difference in hip fracture rate was observed between the compliant and non-compliant groups. Older age and severe comorbidities were associated with higher risks of osteoporotic fractures.
Grafting Transformer on Automatically Designed Convolutional Neural Network for Hyperspectral Image Classification

Hyperspectral image (HSI) classification has been a hot topic for decides, as hyperspectral images have rich spatial and spectral information and provide strong basis for distinguishing different land-cover objects. Benefiting from the development of deep learning technologies, deep learning based HSI classification methods have achieved promising performance. Recently, several neural architecture search (NAS) algorithms have been proposed for HSI classification, which further improve the accuracy of HSI classification to a new level. In this paper, NAS and Transformer are combined for handling HSI classification task for the first time. Compared with previous work, the proposed method has two main differences. First, we revisit the search spaces designed in previous HSI classification NAS methods and propose a novel hybrid search space, consisting of the space dominated cell and the spectrum dominated cell. Compared with search spaces proposed in previous works, the proposed hybrid search space is more aligned with the characteristic of HSI data, that is, HSIs have a relatively low spatial resolution and an extremely high spectral resolution. Second, to further improve the classification accuracy, we attempt to graft the emerging transformer module on the automatically designed convolutional neural network (CNN) to add global information to local region focused features learned by CNN. Experimental results on three public HSI datasets show that the proposed method achieves much better performance than comparison approaches, including manually designed network and NAS based HSI classification methods. Especially on the most recently captured dataset Houston University, overall accuracy is improved by nearly 6 percentage points. Code is available at: https://github.com/Cecilia-xue/HyT-NAS.
Cross-Layer Network Codes for Completion Time Minimization in Device-to-Device Networks

In this paper, we joinlty optimize cross-layer network coding (CLNC) and device-to-device (D2D) communications to facilitate the recovery of popular common files that are missed at multiple user devices (UDs). In the envisioned system, a group of near-by UDs cooperate with each other and use CLNC to combine their received files, such that the UDs can recover their missing files using D2D communications. The proposed CLNC mechanism enables the cloud base-station (CBS) to select the coding decisions, adapt the rate allocation, and adjust the transmit power of the UDs to reduce the interference. Specifically, such a CLNC configuration brings a new trade-off among selecting the transmitting UDs and their coding decisions, and scheduling the transmission rate and power. To this end, we formulate an optimization problem to minimize the completion time required for recovering the missing files at the UDs. The proposed optimization problem is shown to be intractable because an optimal solution depends on the future coding decisions and UDs’ heterogeneous rates. To overcome such intractiblity, we propose an online solution that is updated at each transmission slot. In particular, we first design a graph called herein the D2D rate-aware instantely decodable NC (RA-IDNC), where its vertices have weights that judiciously balance between the rate of the transmitting UDs and the number of their scheduled UDs. Subsequently, we propose an innovative and efficient CLNC solution that iteratively selects a set of transmitting UDs and optimizes their powers using a function evaluation (FE) method. In each iteration, a new transmitting UD is selected provided that the resultant interference does not significantly degrade the completion time performance. Simulation results show that the proposed CLNC can significantly reduces the completion time compared to the benchmark schemes.
ASSESSMENT OF ENDANGERED ECONOMIC TREE SPECIES AND CONSERVATION TECHNIQUES IN JIGAWA STATE, NIGERIA

This study focused on assessment of endangered tree species and conservation strategies in Jigawa State, Nigeria. Multistage sample design was used, while four agricultural zones (Brinin-kudu , Gumel, Hadejia , Kazaure) were considered for the study. One hundred and sixty (320) questionnaires were administered and forty (80) structured questionnaires were distributed to each agricultural zone. Red list indicator was use as a guide to determine the conservation status. Tree species assessed include: Tamarindus indica, Adansonia digitata, Parkia biglobosa, Vitellaria paradoxa, Hyphaene thebaica, Faidherbia albida, Khaya senegalensis and Borassus aethiopica were the most commonly exploited and endangered economic tree species which were used either as fuel wood, timber, mortar and pestle, medicinal purpose, local house furniture, and thus, are considered to be a threat to sustainable environmental and ecosystem management in the study area. However, results show that deforestation had high rate, followed by overgrazing. low level of education, poverty, unemployment, bush clearing and bush burning are identified as the major factors that are responsible for the involvement of old and young people in the destruction of these endangered economic species tree in Dutse, Jigawa State, Nigeria. Environmental education was chosen the best conservation strategy followed by habitat protection. Law enforcement had least value on the protection of these endangered species. Therefore, it is recommended that forest science and environmental education should be taught at different levels of formal learning; also reliable and cheap sources of alternative energy must be provided, government should recruit forest guard officers, enforce the forest law and fine against the indiscriminate felling of trees and encourage tree planting campaign in the State.